Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

OAITW r.2.0

(31,925 posts)
Fri Feb 27, 2026, 09:21 PM 14 hrs ago

Baseball ABS is a game changer.

MLB has started using radar/AI to determine the actual pitch location within the strikezone. The human factor is being tuned out. Umps call the game, but balls and strikes can now be contested. Probably only effects a dozen calls a game, but it will overcome the limitations of human subjectivity.

I thought, at some point, umpires would use Google Glasses or some similar tech to determine tough call pitches....but the results are interesting in Spring training. Umps are getting over-ruled on a lot of challenges.

21 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Baseball ABS is a game changer. (Original Post) OAITW r.2.0 14 hrs ago OP
What?!? Sun-Moon 14 hrs ago #1
An Umpire Had Five Straight Calls Get Overturned With ABS Brother Buzz 14 hrs ago #2
This is the vid that I watched that made me realize how big a game changer this tech is. OAITW r.2.0 14 hrs ago #5
There is another Video with the analysis giving the ump a pass on one pitch Brother Buzz 14 hrs ago #6
I imagine ABS will compensate. If the batter changes his stance at the pitch , the zone will change at the same time. OAITW r.2.0 13 hrs ago #13
No. All hitters have been measured WestMichRad 4 hrs ago #16
The strike zone is mutable. It not only changes with the batter, LisaM 2 hrs ago #17
Don't shoot the messenger! WestMichRad 1 hr ago #19
It's spring training for umps, too... Wounded Bear 14 hrs ago #3
You definitely need limitations on challenges. Most shouldn't be contested. OAITW r.2.0 14 hrs ago #4
Managers have no direct say in the pitch challenge action. WestMichRad 14 hrs ago #7
How is the review done? OAITW r.2.0 13 hrs ago #9
You are correct about the actual challenge... Wounded Bear 2 hrs ago #18
I have no doubt that you are correct on this. WestMichRad 1 hr ago #20
My guess is this is a stepping stone to ABS calling all the pitches VMA131Marine 11 hrs ago #15
I'm a high school umpire and would love to have ABS and reviewed calls. chicoescuela 14 hrs ago #8
It has to be controlled use. Otherwise, the game breaks down. OAITW r.2.0 13 hrs ago #10
Of course, you're right the number of challenges has to be controlled. chicoescuela 13 hrs ago #11
It's a beautiful thing to be involved at your level. OAITW r.2.0 13 hrs ago #12
Absolutely right. I love the game and being involved with the kids that love it too. chicoescuela 13 hrs ago #14
It will change the game a little... WestMichRad 1 hr ago #21

Sun-Moon

(246 posts)
1. What?!?
Fri Feb 27, 2026, 09:28 PM
14 hrs ago

I haven’t heard about this.
What a shame. It’s part of the game to have to deal with the umps calls- whether you agree to his huge or small strike zone..
you learn to adjust.



OAITW r.2.0

(31,925 posts)
5. This is the vid that I watched that made me realize how big a game changer this tech is.
Fri Feb 27, 2026, 09:37 PM
14 hrs ago

Thanks for posting.

Brother Buzz

(39,810 posts)
6. There is another Video with the analysis giving the ump a pass on one pitch
Fri Feb 27, 2026, 09:44 PM
14 hrs ago

Showing how the batter crouched low, lowering the entire strike zone; crouching, it was a strike, standing upright, a ball

OAITW r.2.0

(31,925 posts)
13. I imagine ABS will compensate. If the batter changes his stance at the pitch , the zone will change at the same time.
Fri Feb 27, 2026, 10:37 PM
13 hrs ago

WestMichRad

(3,147 posts)
16. No. All hitters have been measured
Sat Feb 28, 2026, 07:27 AM
4 hrs ago

… standing straight up, and the height of their strike zone remains fixed regardless of stance. The crouching Rickey Henderson would have hated this!

Here’s the scoop about how the ABS challenge rules work:
https://www.mlb.com/news/abs-challenge-system-mlb-2026

LisaM

(29,587 posts)
17. The strike zone is mutable. It not only changes with the batter,
Sat Feb 28, 2026, 09:52 AM
2 hrs ago

it can change with every pitch. That's why that shadow box on TV annoys me. It stays in one place the whole time.

I'm not saying umpires are perfect, but the strike zone moves around with the batter. The only thing you can measure in a fixed way is whether it crosses the plate.

This sounds like a huge fail and yet I am sure people will defend it.

WestMichRad

(3,147 posts)
19. Don't shoot the messenger!
Sat Feb 28, 2026, 10:47 AM
1 hr ago

All I’m saying is that… that’s not how the strike zone is being defined, for the purposes of the ABS challenge system.

I suspect that majority of challenges will be on whether the ball is inside or outside, not too high or low. And the width of the strike zone is fixed by the width of home plate, at the front of the plate.

Wounded Bear

(64,102 posts)
3. It's spring training for umps, too...
Fri Feb 27, 2026, 09:29 PM
14 hrs ago

They're getting back into the game as well.

Last season they used the ABS in spring training games. By the time the season had started it had kind of evened itself out to where only a few calls are overturned. Teams only get 2 fails on challenges per game, with extras added for extra innings.

I like it. It's fast and decisive. Doesn't slow the game much and doesn't cause the delays that other challenges cause.

OAITW r.2.0

(31,925 posts)
4. You definitely need limitations on challenges. Most shouldn't be contested.
Fri Feb 27, 2026, 09:36 PM
14 hrs ago

And the managers are going to hold them until they count. No guarantee that the umpire will be over-ruled...but at least there is a consistent point of reference that will make sure bad calls lessen the impact of bad calls throwing games.

WestMichRad

(3,147 posts)
7. Managers have no direct say in the pitch challenge action.
Fri Feb 27, 2026, 09:47 PM
14 hrs ago

Challenges must be made immediately, by either the pitcher, catcher or batter. No hesitation (taking time to look at the dugout, for example) is permitted.
At least, that’s my understanding of the new rule.

OAITW r.2.0

(31,925 posts)
9. How is the review done?
Fri Feb 27, 2026, 10:22 PM
13 hrs ago

Will it be by monitor or some other means? Not sure...but it is a huge step forward to getting balls and strikes called right.

Wounded Bear

(64,102 posts)
18. You are correct about the actual challenge...
Sat Feb 28, 2026, 10:14 AM
2 hrs ago

It must come from the player with no bench intervention. However, you can bet your bottom dollar that managers will tell players before the game starts who can and who can't challenge. The Mariners catcher, Cal Raliegh, was pretty good at it last spring. Batters are looking at the pitch from a different angle, so their challenges will naturally be successful less often, and some guys don't have much of a clue.

The couple of spring games I've seen, the players have been pretty liberally calling challenges. I don't expect that to continue when the games start counting. In the games I saw, the two challenge limit was reached pretty quickly in the early innings, leaving no recourse later in the game. Managers will be pretty strict on who can challenge and who can't.

WestMichRad

(3,147 posts)
20. I have no doubt that you are correct on this.
Sat Feb 28, 2026, 10:51 AM
1 hr ago

Players who have shown they have a good eye for the strike zone will be given more latitude to make challenges. I could see players getting benched for recklessly blowing challenges.

VMA131Marine

(5,235 posts)
15. My guess is this is a stepping stone to ABS calling all the pitches
Sat Feb 28, 2026, 01:09 AM
11 hrs ago

By relaying the outcome of each pitch to the umpire. ABS is already watching every pitch anyway. That will leave the ump to call plays at the plate, HBP, check swings, etc.

chicoescuela

(2,933 posts)
8. I'm a high school umpire and would love to have ABS and reviewed calls.
Fri Feb 27, 2026, 10:14 PM
14 hrs ago

Of course that won’t happen during my career but I think it would make me a better official. I’ve wondered about utilizing the Meta glasses would help me evaluate my performance after the game.
Love the concept.

OAITW r.2.0

(31,925 posts)
10. It has to be controlled use. Otherwise, the game breaks down.
Fri Feb 27, 2026, 10:24 PM
13 hrs ago

Teams can't challenge every ball and strike. But a few strategic challenges when the call counts makes a lot of sense.

Keep calling 'em chicoescuela!

chicoescuela

(2,933 posts)
11. Of course, you're right the number of challenges has to be controlled.
Fri Feb 27, 2026, 10:28 PM
13 hrs ago

Doubleheader scheduled tomorrow. Weather is supposed to be nice so looking forward to it. Kids are great; 90% of parents are as well.

OAITW r.2.0

(31,925 posts)
12. It's a beautiful thing to be involved at your level.
Fri Feb 27, 2026, 10:35 PM
13 hrs ago

You get to see the kids play the game for the joy of it.

WestMichRad

(3,147 posts)
21. It will change the game a little...
Sat Feb 28, 2026, 11:01 AM
1 hr ago

But it’s not that major of a deal. Calls on a few pitches per game will be changed… probably a good thing. Umpires who have a lot of pitch calls overturned may be reigned in somewhat… probably a good thing.
Think back to how we’ve gotten ourselves all riled up in the past about rule changes, especially the package of changes a few years ago. Larger bases, limit on disengagements, pitch timer: some predicted that base stealing would be rampant. That hasn’t happened, thanks in part to catchers with cannons for arms. Steals are up… a little. I think it’s made the game more interesting, more strategic.

Latest Discussions»Culture Forums»Baseball»Baseball ABS is a game ch...