Crystal Ball: Joe Mauer

Everyone loves Joe Mauer, as well they should. Given a normal growth curve, he will be an outstanding hitter. . .hell, he already is most of the time.
Of course, catcher growth curves are not always normal. The main unanswered question right now is how much home run power Mauer will develop. It's hard to remember considering Minnesota's pop-gun offense of recent years, but for most of their history the Twins franchise was renowned for offense: Killebrew, Oliva, Carew, Puckett, Hrbek. . .even the minor stars of Twins history like Bob Allison, Larry Hisle, Gary Gaetti, and Tom Brunansky tended to be power guys. But now it's pitching-and-defense all the way. That's good, but as a Twins fan I'd like to bring some of the power back, too.
For purposes of this Crystal Ball, I am going to assume that Mauer avoids further severe knee trouble in the immediate future. However, I will posit a major injury down the line, one that forces him to move to another position (probably first base) around age 30.
Although I continue to caution people not to take the Crystal Ball feature too seriously, I do think that Mauer's career (if he stays healthy) will look something like this.
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95 comments
Comments
well
but..
I love that you have him staying with the Twins forever.
:)
One of the classiest kids i've ever seen, and he's only young 20's. He's good for baseball.
by hotshotschamp on Feb 20, 2026 12:14 PM EST reply actions 0 recs
oh btw...
if his career avg aint above .300 I'll give ya a quarter
:)
by hotshotschamp on Feb 20, 2026 12:14 PM EST reply actions 0 recs
4 bits
by HuskerBob on Feb 20, 2026 12:34 PM EST up reply actions 0 recs
i totally agree
by sabernar on Feb 20, 2026 12:41 PM EST up reply actions 0 recs
Lifetime Twin...
by slurve on Feb 20, 2026 12:16 PM EST reply actions 0 recs
He will be the new Puckett/Radke
by Terry Ryan Jr on Feb 20, 2026 2:28 PM EST up reply actions 0 recs
Best ever?
Mauer Proj. Piazza
2B 453 308
HR 308 397
RBI 1367 1223
R 1230 976
BB 1077 707
K 972 986
I'll give you that you move Mauer out from behind the plate at age 30, but this still strikes me as incredibly optimistic, projecting someone with one full season well above and beyond the benchmark for his position.
by kings33 on Feb 20, 2026 12:27 PM EST reply actions 0 recs
checked
by John Sickels on Feb 20, 2026 12:31 PM EST up reply actions 0 recs
Two things...
by grozzy on Feb 20, 2026 12:43 PM EST up reply actions 0 recs
After 10 years behind the plate
by HuskerBob on Feb 20, 2026 12:49 PM EST up reply actions 0 recs
Count me in
It is a little hard to compare once in a lifetime talent to your average player. It just don't work that way. We have never seen a catcher of his size and ability.
by Josh on Feb 20, 2026 3:34 PM EST up reply actions 0 recs
This good, this young.
Sim Player From To Yrs G AB R H 2B 3B HR RBI BB SO BA OBP SLG SB CS OPS+
+---++-------------------+---------+--+----+-----+----+----+---+---+---+----+----+----+-----+-----+- ----+----+---+----+
Johnny Bench 1967-1970 4 486 1787 254 502 101 8 87 326 139 303 .281 .330 .492 12 14 126
Joe Mauer 2004-2005 2 166 596 79 177 34 3 15 72 72 78 .297 .371 .440 14 1 114
by sidnancy on Feb 20, 2026 4:19 PM EST up reply actions 0 recs
knew he was coming
Bench was more of a power hitter. Where Joe is a high average high/OBP guy. Over at baseball-reference they have Jeter has a comparable hitter to Mauer. I think Jeter is a much better comparision then Bench with the bat. Players like Jeter and Mauer age better with the bat then a player like Bench imo.
by Josh on Feb 20, 2026 4:36 PM EST up reply actions 0 recs
RE: Bench
(1) Mauer, like Bench, is a catcher. Catchers don't age, some just fall apart more slowly.
(2) Bench hit .293 in each his age 21 and 22 seasons in 1263 plate appearances; Mauer has hit .297 in 676 PA. So at that point in his career, he was just as much a "high BA hitter" (though his OBP wasn't as high).
(3) BB-Ref (where I got my stats, too) has Jeter as having comparable stats through age 22, not as being comparable hitters. More importantly, they have Benito Santiago (who is still catching at 83 years old), old timer Shanty Hogan (done as a catcher by 26), Joe Torre (who was done catching by 29), and Bill Freehan (who caught more than 100 games twice after turning 29) as being more comparable than Jeter now to Mauer. While there are worse careers than Freehan's or Torre's, I don't think those are the kinds of career you think he'll have.
by sidnancy on Feb 20, 2026 7:19 PM EST up reply actions 0 recs
comparable stats
There is always a chance that an injury will end every players career. Because he compares to catchers that only caught till 29 means nothing to me. He also compares to a catcher that missed time for the war. Does that mean Joe is headed to Iraq?
No one knows how Joe will age. This isn;t a debate on how well catchers as a group hold up. We are talking about a single player here. Anyone who thinks they know how Joe is going to age isn't living in reality. The best we can do is assume good health and go from there.
by Josh on Feb 20, 2026 9:04 PM EST up reply actions 0 recs
Mauer's aging
But you've drifted from the original point - You said there hasn't bee a catcher as good, the same size(?), as young as Mauer. Well, there have been. I've shown you the catchers who were very good just as young (and Bench had 3 Gold Gloves, a Rookie of the Year, and an MVP by Mauer's age). If size matters much, Mauer is listed at 6'4", 220 lbs. Torre was 6'2" 212; Freehan 6'2" 205; Bench 6"1" 208. All were slightly smaller, but were likely just as large vs. everyone in the league at the time (because everyone is bigger now).
To correct your statement above, it should read "No one knows how Joe will age. The best we can do is look at similar players, and assume he'll age about the same." Because we cannot assume good health for an extended period for catchers - the position is just too brutal.
by sidnancy on Feb 21, 2026 9:33 AM EST up reply actions 0 recs
nancy
Please don't correct what I want to say. I disagree 100% with what you are saying there. IN johns very first post he said assuming good health. DO you really want to see a crystal ball that shows Joe done in 3 years? That would be semiretarted.
And Torre, Freehan, and Bench do not compare to Mauer. Sorry. 6'1" doesn't = 6'4. 6'2 doesn't = 6'4. You want to be all technical on comparing Jeter and Mauers stats, but when it comes to your argument on size, ahh they are close enough. whatever. I think what I think. You think what you think.
by Josh on Feb 21, 2026 10:21 AM EST up reply actions 0 recs
Torre
My guess is that he will fall somewhere between Torre and Piazza, closer to Torre. But I don't rule out Todd Zeile either.
This is fun debate, and no one knows for sure. Would be great to see him redefine the benchmarks for catchers... I just wouldn't bet on it.
by kings33 on Feb 21, 2026 7:04 AM EST up reply actions 0 recs
Photo
by jianfu on Feb 20, 2026 12:32 PM EST reply actions 0 recs
piazza
Note that Piazza has a lot more home run power than even Mauer's projection, plus a higher batting average. Given Piazza playing his career in LA and NY, difficult places to hit, his adjusted overall OPS would likely be better than Mauer's, which is what I had in mind.
by John Sickels on Feb 20, 2026 12:34 PM EST reply actions 0 recs
Era?
by tmelander on Feb 22, 2026 3:13 AM EST up reply actions 0 recs
piazza
by John Sickels on Feb 20, 2026 12:35 PM EST reply actions 0 recs
Mauer's HR
by John Sickels on Feb 20, 2026 12:37 PM EST reply actions 0 recs
.471
So it is not true that I am projecting Mauer to be better than Piazza...he has less power and less batting average and a worse OPS+.
by John Sickels on Feb 20, 2026 12:41 PM EST reply actions 0 recs
Not HOF caliber numbers
by cmathewson on Feb 20, 2026 12:46 PM EST reply actions 0 recs
Re: Not HOF caliber numbers
by steve johnson on Feb 20, 2026 2:06 PM EST up reply actions 0 recs
except that...
by sabernar on Feb 20, 2026 4:44 PM EST up reply actions 0 recs
Are you suggesting that Mauer will get glaucoma?
by limozeen on Feb 20, 2026 5:03 PM EST up reply actions 0 recs
I did say that...
by cmathewson on Feb 20, 2026 5:39 PM EST up reply actions 0 recs
re: except that...
...Puckett's numbers were borderline HoF'er. Take a look - there are any number of guys who never got in who had better numbers then he did. And Mattingly has about the same numbers has he did and most everyone agrees that he doesn't deserve to get in.
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...Mattingly was a first baseman. Puckett was a centerfielder for about ten years. Mattingly's first six first seasons were good to great. The last five don't seem any better than an average 1b of that era. I'm not the biggest fan of this approach, but it also helped his case that Puckett was involved in two world championship teams and was a deciding factor in each.
by steve johnson on Feb 21, 2026 2:48 PM EST up reply actions 0 recs
Mattingly vs. Puckett
He hurt his back and was never the same after that. Puckett was more of a compiler and a media favorite, plus he won 2 championships, so he is in the Hall. None of those facts make him a better player than Mattingly, who was affected by injury just as much as Puckett was. I'm not saying that Mattingly deserves to be in the Hall, but if you asked me to take one player at their peak, Mattingly easily wins the debate.
by jc3 on Feb 21, 2026 3:16 PM EST up reply actions 0 recs
Re: Mattingly vs Puckett
I'm not saying that Mattingly deserves to be in the Hall, but if you asked me to take one player at their peak, Mattingly easily wins the debate
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You couldn't answer that debate objectively unless you looked at what Firstbasemen were doing at the time vs Centerfielders. No question that for those six peak years without respect to position, Mattingly was just a better hitter. Likewise, considering the last six seasons of Mattingly's carrer, Puckett's hitting was superior. Lifetime, Mattingly ranks just above Puckett in adjusted OPS+, while Pucket had an edge in RC/9.
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Puckett was more of a compiler...
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No he wasn't. That doesn't even make sense.
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...and a media favorite
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Mattingly was as well. Both consumate "Nice Guys" in the eyes of the media at the time.
by steve johnson on Feb 21, 2026 7:20 PM EST up reply actions 0 recs
Points
- The reason Mattingly's #'s for the last 6 years were significantly worse was because of a back injury. Before that, his numbers were significantly better.
- He is more of a compiler than Mattingly because he had to have 6 extra years of healthy baseball to catch Mattingly in career numbers, and even then, his numbers are not better.
- Puckett was more in the limelight because his team was more competitive and he got more exposure. You are right, they were both liked, but Puckett was more front-and-center to the nation.
by jc3 on Feb 21, 2026 7:59 PM EST up reply actions 0 recs
Puckett being a "compiler"
The reason Mattingly's #'s for the last 6 years were significantly worse was because of a back injury. Before that, his numbers were significantly better.
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It just doesn't matter. Injuries are part of baseball, as are chronic injuries that lessen skills. It doesn't change the fact that from 1988 and to the end of both their carreers after the 1995 season, Puckett was a better hitter and a better player. Or that Puckett played a premium defensive position that makes his production more valuable.
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He is more of a compiler than Mattingly because he had to have 6 extra years of healthy baseball to catch Mattingly in career numbers, and even then, his numbers are not better.
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This makes no sense beyond some twisted notion of sour-grapes. A 'complier' sounds like someone who hangs on to accrue more counting stats while providing less than adept production. I hate to point out that once again, the end of Mattingly's career more closely matches this, but I'm not going to stoop to labeling a good player with a derogatory term, but you did bring it up.
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Puckett was more in the limelight because his team was more competitive and he got more exposure. You are right, they were both liked, but Puckett was more front-and-center to the nation.
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Except it wasn't this "limelight" that got him into the Hall of Fame.
by steve johnson on Feb 21, 2026 8:31 PM EST up reply actions 0 recs
Hmm
The only HOFer in recent memory affected more by injury than Puckett was Roberto Clemente, and before him, Lou Gehrig.
by limozeen on Feb 21, 2026 7:25 PM EST up reply actions 0 recs
Please
To say that Mattingly's career was not as adversely affected by injury as Puckett's is not accurate. Mattingly had 6 healthy years, Puckett 12. Puckett certainly had the more debilitating injury, but he didn't have to play with his, either, so his numbers were not affected by it.
by jc3 on Feb 21, 2026 8:02 PM EST up reply actions 0 recs
Playing injury vs. extreme circumstances
by limozeen on Feb 21, 2026 8:06 PM EST up reply actions 0 recs
This is nonsense
If Mattingly and Puckett both had their significant injuries in 1990 and both retired, who's career would be considered better? Right, it's not close.
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#1) you are still equating a firstbaseman to a Centerfielder without accounting for such. It would be an interesting exersize to find their production relative to their position, because that matter.
#2) This is rediculous and intellectually backwards argument you are making. This is a type of Strawman argument you are making limiting the scope of the comparison to put one player in the best light, and the other in the worst.
by steve johnson on Feb 21, 2026 8:43 PM EST up reply actions 0 recs
He has been rated that good
I think that his HR power won't start that early, it will be a little less and backloaded. One question, Why will he virtually stop running?
by Shamus on Feb 20, 2026 12:49 PM EST reply actions 0 recs
Why stop running?
by CrimsonLiederhosen on Feb 20, 2026 12:53 PM EST up reply actions 0 recs
Jason Kendall?
by cooper7d7 on Feb 20, 2026 1:10 PM EST up reply actions 0 recs
I'd say that's
by abbreviatedman on Feb 20, 2026 2:12 PM EST up reply actions 0 recs
Definitely, but...
by cooper7d7 on Feb 20, 2026 2:30 PM EST up reply actions 0 recs
No, of course there are exceptions.
That said, I'm a huge Mauer fan, so here's hoping!
by abbreviatedman on Feb 21, 2026 1:00 AM EST up reply actions 0 recs
Not quite...
by calig23 on Feb 20, 2026 10:03 PM EST up reply actions 0 recs
Oakland doesn't steal
by limozeen on Feb 20, 2026 10:05 PM EST up reply actions 0 recs
Not really
by calig23 on Feb 20, 2026 10:20 PM EST up reply actions 0 recs
I don't deny that
by limozeen on Feb 20, 2026 10:35 PM EST up reply actions 0 recs
Height/weight differential
by StickRat on Feb 21, 2026 2:16 AM EST up reply actions 0 recs
My point...
by cooper7d7 on Feb 21, 2026 7:56 AM EST up reply actions 0 recs
I hear ya ...
by StickRat on Feb 21, 2026 5:31 PM EST up reply actions 0 recs
Mauer, Morneau,and Greinke
by gashousegang on Feb 20, 2026 1:21 PM EST reply actions 0 recs
Come to the Dome
by cmathewson on Feb 20, 2026 1:58 PM EST up reply actions 0 recs
There's no way...
I also love these Crystal Ball features...
I dont agree that Mauer will come close to matching the projections. I think Mauer is nothing more than a good hitter in the .290 range during his prime years with 20-25 HR power.
His steals will never amount to more than 10-12 per season and probobably half that by the 2010 season.
All that said, it still puts Mauer in the top 2-3 catchers of the AL. At least until the next flavor of the month comes along.
Joe D.
by JoeD on Feb 20, 2026 1:46 PM EST reply actions 0 recs
In other words...
by Sulla on Feb 20, 2026 1:57 PM EST up reply actions 0 recs
The projection...
You say he will never amount to more than 10-12 steals per year and John doesnt predict any seasons higher than 10 and only one in the double digits. Unless of course you will argue that he wrongly projected Mauers 13 steals this past year. I would have to say that its plenty realistic that he had 13 steals last year.
The only real disagreement in your two projections is that you only think Mauer will peak at .290-ish which is odd since Mauer has a great eye, hit over .300 in throughout the minors and hit .294 last year in what is certainly not yet his peak years. At that, John only has him hitting under .300 for his career.
I really dont see why everyone has such a problem with this projection. I think its hardly overly optimistic. Not every prospect pans out, but not every prospect fails either. I think this is a good estimate for what Mauer should do. I honestly think his ceiling is higher than this but I feel this is a more likely projection.
by grozzy on Feb 20, 2026 1:58 PM EST up reply actions 0 recs
Hit the nail on the head.
by Terry Ryan Jr on Feb 20, 2026 2:25 PM EST up reply actions 0 recs
This is my only beef
by cmathewson on Feb 20, 2026 3:08 PM EST up reply actions 0 recs
steals
by Shamus on Feb 20, 2026 2:04 PM EST up reply actions 0 recs
just off the top of my head
Just throwing out some names that aren't in the stream of consiousness anymore but were pretty good catchers.
by natsfan2005 on Feb 20, 2026 2:21 PM EST up reply actions 0 recs
yeah
by Shamus on Feb 20, 2026 3:10 PM EST up reply actions 0 recs
A man can dream, can't he?
by StickRat on Feb 20, 2026 2:19 PM EST reply actions 0 recs
2012
by John Sickels on Feb 20, 2026 2:29 PM EST reply actions 0 recs
2013-14
by StickRat on Feb 20, 2026 10:07 PM EST up reply actions 0 recs
Beef
I don't think he'll be a HoFer if he switches to 1B and puts up these stats.
by CrimsonLiederhosen on Feb 20, 2026 2:50 PM EST reply actions 0 recs
So wrong
The one time in his career that he got hurt it was a freak thing. There is no reason to predict future injury issues. The knee problem happened at a young enough age. I don't see it as a problem unless he all the sudden he puts on 50 pounds.
Mauer is a freak. He will change the way we look at catchers in the same way Arod changed the way we looked at SS.
by Josh on Feb 20, 2026 3:25 PM EST up reply actions 0 recs
i love Mauer, but...
by sabernar on Feb 20, 2026 4:46 PM EST up reply actions 0 recs
he's in a DH league
by natsfan2005 on Feb 20, 2026 4:50 PM EST up reply actions 0 recs
yup
by Josh on Feb 20, 2026 5:01 PM EST up reply actions 0 recs
Doesn't look unreasonable to me
He's got nice loft to his swing, but I wonder if it might be just a little too compact to generate the power that he should be capable of.
I live in the Chicago area and I can't help but be a fan of Mauer. It's not going to take much more than a bit of luck to see him become one of the great players at his position in baseball history. That might sound like hyperbole, but he's just a tremendous and rare combination of skill and talent, the type that doesn't come along that many times in a generation of ballplayers.
by mrkupe on Feb 20, 2026 3:23 PM EST reply actions 0 recs
The twins look like a force....
by joeywyen on Feb 20, 2026 4:21 PM EST reply actions 0 recs
yeah
Just kidding
by colinadam on Feb 20, 2026 5:07 PM EST up reply actions 0 recs
I know your Kidding because....
by joeywyen on Feb 20, 2026 5:34 PM EST up reply actions 0 recs
Looks pretty good, but...
by Justin & Joe on Feb 20, 2026 6:12 PM EST reply actions 0 recs
mauer
despite being routinely pitched around in a weak lineup, stats are those of an extremely advanced hitter.
superb makeup, latent power potential - with his bat control, swing and size - will eventually become prominently displayed.
bat will play at 1st, 3rd easily several years from now.
at this point his career, for those reasons, imho, extrapolates (barring further injury)beyond both Piazza and Bench.
by dryice on Feb 20, 2026 9:56 PM EST reply actions 0 recs
Is that luis Rivas in the background
by joeywyen on Feb 20, 2026 10:48 PM EST reply actions 0 recs
Good catch
by Jaerbesan on Feb 21, 2026 11:15 AM EST up reply actions 0 recs
I am more prone to use.....
"Luis Oforthreevas"
It is accurate and hillarious.
by Terry Ryan Jr on Feb 21, 2026 1:20 PM EST up reply actions 0 recs
overhype
Comparing him to the hall of fame catchers
Mauer:
Hits 1st
Ab 2nd
Games 3rd
Runs 2nd
RBI 3rd
2B 1st
This has him right at or near top of HOF catchers. And it also has him near or at the top of all the counting stats. Considering he had serious injury problems missing almost a full year in his first two years I think this is well beyond a normal prediction.
by pedrophile on Feb 21, 2026 1:13 AM EST reply actions 0 recs
I think....
by joeywyen on Feb 21, 2026 1:49 AM EST up reply actions 0 recs
love to see
by Josh on Feb 21, 2026 2:02 AM EST reply actions 0 recs
Mauer
If he can stay behind the plate, he'll be one of the top 5 players in the sport.
by jc3 on Feb 21, 2026 9:45 AM EST reply actions 0 recs
Really?
by sidnancy on Feb 21, 2026 12:59 PM EST up reply actions 0 recs
being pumped up
by Josh on Feb 21, 2026 1:13 PM EST up reply actions 0 recs
No
by jc3 on Feb 21, 2026 2:37 PM EST up reply actions 0 recs
Josh
by pedrophile on Feb 21, 2026 11:50 PM EST up reply actions 0 recs
Wow!
by tmelander on Feb 22, 2026 3:30 AM EST up reply actions 0 recs
HOFer???
You cannot project Mauer to be a Hall member.
It would be foolish to project any 22 year old as a HOFer. Especially someone with 600 ML plate appearances.
jc3: You haven't been paying attention. Delmon Young, especially, has gotten more press than Mauer. I haven't seen a ranking yet (and the way our fantasy league works, I look at probably a dozen a year) that had Mauer ahead of Young.
by sidnancy on Feb 21, 2026 4:15 PM EST reply actions 0 recs
Yes, I do pay attention
The top 3 hyped prospects of the last few years have been Mauer, Prior, and Felix Hernandez. All are basically expected to be HOF-caliber players. I don't think I've seen that kind of hype with Delmon, but he is considered the #1 prospect now, if you consider that to be hype. Mauer is considered to be the best catching prospect (maybe) ever, while Delmon is a tremendows OF prospect, but not on the level of a Vlad or (pre roids) Bonds-type player. Just my take.
by jc3 on Feb 21, 2026 5:03 PM EST up reply actions 0 recs
subject
If you feel you can't project a guy to be a HOF career do you feel you can project a pitcher to be a future number 1? What about hitters to be allstars, or future mvp's? Is it wrong to project highschool kids as first round picks?
by Josh on Feb 21, 2026 5:43 PM EST up reply actions 0 recs
prospects
by pedrophile on Feb 21, 2026 11:53 PM EST up reply actions 0 recs
That's just false...
by tmelander on Feb 22, 2026 3:35 AM EST up reply actions 0 recs
Hold your horses...
In almost 600 AB's against lefthanders he has only 2 homeruns and less than a .200 average in his professional career.
In the 2005 season second half he had 280 at-bats and hit 3 homeruns and drove in 29 runs, that's right 29!
Whats all the fuss about?
Now it gets even tougher because the book is out on him and nobody knows if he can make the needed adjustments.
I think he's a solid player, but everyone needs to tone down those expectations.
Here he is being compared to Mike Piazza when he has yet to display the power of Mike Matheny.
Mike Piazza led the minors in homeruns 2 years in a row before he got called up. Mauer has less than 25 homeruns in his career.
Nuff said!
Joe D.
by JoeD on Feb 22, 2026 2:30 PM EST reply actions 0 recs




