Analysis: What Does Cal Raleigh Non-Challenge Mean for Mariners ABS Strategy?

Use it or lose it. That’s a phrase that applies to many things in life: youth, a second language, differential calculus, Mark Knopfler’s finger-picking technique, and as of the beginning of the 2026 Major League Baseball season, your team’s two Automated Ball-Strike (ABS) system challenges.

Here are the rules: each team gets two ABS challenges for balls and strikes that must be used immediately after any pitch is thrown. If a challenge is unsuccessful, one challenge is taken away from that team. If a team is out of challenges by the beginning of any extra inning, they get one more.

On Thursday night in Seattle, the Cleveland Guardians offered two challenges: one by catcher Bo Naylor to overturn a 2-2 ball call and strike out Cole Young in the bottom of the fifth inning, and the other a failed challenge by left fielder Steven Kwan after a 1-2 Logan Gilbert slider veered back onto the strike zone at the last gasp.

The Mariners didn’t use any.