Guardians' First Weekend with ABS Challenges: Good Theater, Mixed Results, and a Catcher Advantage

Breaking down how MLB's automated ball-strike challenge system is changing the game — and the viewing experience

Mar. 30, 2026 at 9:52pm

Got story updates? Submit your updates here. ›

A cubist, geometric painting depicting a baseball game, with the ball and players fractured into overlapping planes of bright, contrasting colors representing the team's official palette.The new automated ball-strike challenge system has added a layer of drama and fan engagement to every pitch, as teams strategically decide when to contest close calls.Cleveland Today

The automated ball-strike (ABS) challenge system made its regular season debut this weekend, and the Cleveland Baseball Talk Podcast crew had some fascinating observations about how it played out during the Guardians' series in Seattle. Catchers are winning this battle big time, with a 60% success rate on challenges so far, compared to batters. The system is adding a new layer of fan engagement, with every close pitch becoming a decision point on whether to challenge.

Why it matters

The ABS system isn't just about getting calls right — it's fundamentally changing the pace and energy of the game, adding drama without slowing it down significantly, creating new strategic decisions, and giving fans another reason to stay locked in on every pitch.

The details

In the Guardians' series, they had mixed results with their challenges. Umpire Arias missed on a challenge, but catcher Bo Naylor had some good challenges, including one that got a strikeout for pitcher Bibee. The Guardians seemed to be saving their challenges for later in games, possibly trying to make them count in higher-leverage situations.

  • The automated ball-strike (ABS) challenge system made its regular season debut this weekend.
  • In the Guardians' series against the Mariners, the team had mixed results with their challenges.

The players

Umpire Arias

Missed on a challenge during the Guardians' series.

Bo Naylor

Catcher for the Guardians who had some good challenges, including one that got a strikeout for pitcher Bibee.

Got photos? Submit your photos here. ›

What they’re saying

“It's good theater. It makes the game more watchable because every pitch now you're locked in on the location. You want to know whether or not you would have challenged in that situation or you find yourself shouting at the TV screen.”

— Joe Noga, Cleveland Baseball Talk Podcast host

“It definitely really affects the game. It can change an inning. It puts some adrenaline in the inning or can really short-circuit it.”

— Paul Hoynes, Cleveland Baseball Talk Podcast host

The takeaway

The ABS challenge system adds drama without slowing the game down significantly, creates new strategic decisions, and gives fans another reason to stay locked in on every pitch, fundamentally changing the pace and energy of the game.