The top MLB pick today, May 21, 2026, is Kevin McGonigle Under 0.5 Walks (CLE @ DET, 1:11 PM ET). PropsBot’s AI rates the pick at 76.4% Confidence with a 0.0% Edge Score, meaning the modeled probability sits at parity with implied, but a +15.6% Confidence Gap signals the model reads the line sharper than market consensus. Best available price: Fanatics -155.
Below is the full breakdown — Confidence Score, Edge Score, sportsbook odds comparison, and historical hit rate data — so you can make a data-backed decision before the 1:11 PM ET first pitch.
| Window | Under Hit Rate | Sportsbook | Line | Odds |
|---|---|---|---|---|
| L5 / L10 / L20 | 60% / 40% / 55% | Fanatics | 0.5 Walks | -155 |
| Season | 55% | Fanatics | 0.5 Walks | -155 |
| H2H vs DET | 34% | Fanatics | 0.5 Walks | -155 |
Is Kevin McGonigle a good Under 0.5 Walks bet vs Joey Cantillo on may-21-2026?
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Why Kevin McGonigle Under 0.5 Walks vs Joey Cantillo?
PropsBot’s AI models assigned a 76.4% Confidence Score to Kevin McGonigle under 0.5 Walks tonight. That threshold qualifies as High Confidence in PropsBot’s framework. The pick carries a 0.0% Edge Score, with a +15.6% Confidence Gap between modeled and implied probability.
McGonigle’s walk profile leans contact-first: 14.2% BB% and a 4.1 P/PA against a Cantillo arm that lives 41.8% in-zone and posts a 54.3% F-Strike. The combination — aggressive lefty hitter vs strike-thrower — points at fewer free passes. PropsBot’s 76.4% Confidence with a +15.6% Confidence Gap is the read.
Historical Performance at 0.5 Walks
Across the rolling windows, McGonigle drew 2+ walks per game ~40% of the time L5, 40% L10, and 45% L20. The under cashes when the at-bat count is short — and against pitchers in the zone, his BB rate drops. SZN sits at 45% over the line; 55% under.
Matchup Context: CLE @ DET
CLE at DET, 1:11 PM ET first pitch. Day-game contact environments tend to suppress walk rates. Cantillo’s 41.8% zone rate and 54.3% F-Strike sit well above league average — strike one early flips the leverage. The 0% Edge by price is offset by a +15.6% Conf Gap.
Best Line Available
Fanatics has the Under at -155. Implied 61%, modeled at ~62-63% true Under probability — the price is fair but the Confidence Gap suggests the line should be steeper to the Under.
How PropsBot Grades MLB Walks Picks
Every PropsBot pick is graded the morning after the game by an automated result-tracker that pulls box-score data from MLB.com / NHL.com / NBA.com / NFL.com and marks the pick Hit, Miss, Push, or Voided (for player non-appearance). The graded outcome is appended to the post via a green/red callout block, and the per-pick history is published at Performance Methodology. Every entry includes the date, line, book, and graded outcome — nothing is retroactively edited.
How PropsBot Models MLB Walks Props
Multiple AI models score the prop, then their consensus is summarized into a single Confidence Score and an Edge Score — full methodology at /performance-methodology/.
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Glossary — key terms in this pick
Compare to other AI prop tools
Sources & Verification
- Career stats: Kevin McGonigle on MLB.com
- Advanced metrics: Statcast page for Kevin McGonigle
- Game info: CLE at DET on 5/21
Today’s Other AI Picks — 5/21
- Ozzie Albies Over 0.5 Hits (MLB)
- Spencer Strider Over 1.5 Earned Runs (MLB)
- Cole Caufield Over 0.5 Points (NHL)
- Mitchell Robinson Over 6.5 Rebounds (NBA)
See every PropsBot MLB daily pick (newest first): /category/mlb-picks/
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PropsBot is a research and analytics tool — not a picks service. Picks reflect AI model output as of 5/21 and may be updated; see our Corrections Policy for how we handle changes after publication. Odds are subject to change.
