MLB: Highest ABS Challenge Success Rate (Team)

Platform comparison

Market context

The 2026 MLB season has introduced the Automated Ball-Strike Challenge System, and this market seeks the team with the highest percentage of successful challenges. With a crowd-implied probability of 36% for the favourite, the consensus leans toward teams with aggressive bullpens and savvy catchers, yet value may sit with underdogs who challenge selectively but with high precision.

Historically, challenge success rates hover near 54%, with elite teams like the Mets and Chicago Cubs hitting 63% early in the season, as noted by The Athletic’s Zack Meisel [1]. However, spring training data showed significant variance, with catchers achieving 56–58% success versus hitters at 50–52% [10]. This suggests that teams relying on catcher-led challenges may outperform those dependent on batter appeals, framing the current 36% as potentially inflated for top-heavy contenders.

Traders should monitor weekly ABS tracker updates, particularly the Boston Red Sox and Chicago Cubs rankings, which show divergent challenge frequencies and success rates [8]. The system’s overturn rate and situational breakdowns on baseballsavant.com will reveal which teams are optimising timing [2]. Recent analysis from ESPN confirms that team-specific strategies are evolving rapidly, making mid-season adjustments critical for identifying true value spots [8]. Contrarian angles may emerge from teams with lower challenge counts but higher per-challenge accuracy, a pattern already visible in early 2026 data [7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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