# MLB Strikeout Props: August 20, 2026 (Pitcher K Picks) > MLB strikeout prop picks for August 20, 2026: Gavin Williams leads the board across 9 games. Six factor scoring model ranks pitchers by K likelihood. **Date:** 2026-08-20 **Author:** HeatCheck HQ **Tags:** MLB, Strikeouts, Pitcher Props, K Props, Daily Picks, Player Props **Full article:** https://heatcheckhq.io/blog/mlb-strikeout-picks-aug-20-2026 **Live picks & dashboards:** https://heatcheckhq.io --- **Today's best MLB strikeout prop picks for Thursday, August 20, 2026** are Gavin Williams (Score: 81, 11.48 K/9, 31.2% whiff rate), Jacob deGrom (Score: 78, 11.01 K/9, 33.4% whiff rate), Ian Seymour (Score: 69, 10.77 K/9, 29.5% whiff rate). Rankings are generated by HeatCheck HQ's six factor pitcher K scoring model, updated daily. # MLB Strikeout Props Today: August 20, 2026 9 game slate, 17 probable starters. These pitchers have the K rate and matchup to pile up strikeouts. > [Pitching Stats Dashboard](/mlb/pitching-stats): full pitcher arsenals and K metrics for every starter. > **Yesterday's K picks:** [MLB Strikeout Picks: August 19](/blog/mlb-strikeout-picks-aug-19-2026) ## Today's Slate - STL at CIN (Michael McGreevy vs Brady Singer), 12:40 PM ET - SF at CLE (Landen Roupp vs Gavin Williams), 1:10 PM ET - TOR at TB (Shane Bieber vs Ian Seymour), 1:10 PM ET - ATH at KC (J.T. Ginn vs Randy Dobnak), 2:10 PM ET - ATL at CWS (Grant Holmes vs TBD), 2:10 PM ET - SEA at MIL (George Kirby vs Robert Gasser), 2:10 PM ET - NYY at BAL (Gerrit Cole vs Kyle Bradish), 6:35 PM ET - WSH at TEX (Andrew Alvarez vs Jacob deGrom), 8:05 PM ET - LAA at HOU (Grayson Rodriguez vs Peter Lambert), 8:10 PM ET ## Pick 1: Gavin Williams, CLE vs SF RHP | 190 K on season | Progressive Field *190 K · 11.48 K/9 · 31.2% whiff · 3.74 ERA · 1.08 WHIP · 22.0% opp K rate* **Top K play tonight.** Gavin Williams's 11.48 K/9 puts him in elite strikeout territory, the kind of arm that punches out a batter every nine pitches he's in the game. Tonight against SF he keeps adding to the season total. The 31.2% whiff rate underneath confirms the stuff is real, not BABIP fueled. The sweeper (42.1% whiff) is the put away offering when he needs it. Take Gavin Williams over his K prop. > **Dig deeper into pitcher arsenals** on the [Pitching Stats dashboard](/mlb/pitching-stats): see pitch mix, whiff rates, and velocity for every starter. ## Pick 2: Jacob deGrom, TEX vs WSH RHP | 147 K on season | Globe Life Field *147 K · 11.01 K/9 · 33.4% whiff · 3.95 ERA · 1.17 WHIP · 22.0% opp K rate* 11.01 K/9 is among the best in the game. Jacob deGrom faces WSH tonight, and if the strike zone cooperates, the K total piles up fast. The 33.4% whiff rate underneath confirms the stuff is real, not BABIP fueled. The changeup (42.7% whiff) is the put away offering when he needs it. Jacob deGrom is the K play I trust most in this spot. ## Pick 3: Ian Seymour, TB vs TOR LHP | 115 K on season | Tropicana Field *115 K · 10.77 K/9 · 29.5% whiff · 4.11 ERA · 1.13 WHIP · 22.0% opp K rate* When a single pitch generates 39.3% whiffs at 31% usage, that's the K prop case. Ian Seymour's changeup is exactly that pitch. The 29.5% whiff rate underneath confirms the stuff is real, not BABIP fueled. The 10.77 K/9 is the season long anchor. Take Ian Seymour over his K prop. ## Honorable Mentions - **Peter Lambert** (HOU) vs LAA: 8.91 K/9, 25.6% whiff, 3.11 ERA, 117 K - **J.T. Ginn** (ATH) vs KC: 8.07 K/9, 27.3% whiff, 3.53 ERA, 114 K - **Landen Roupp** (SF) vs CLE: 8.92 K/9, 25.5% whiff, 4.31 ERA, 128 K ## Related Guides - [MLB Stats Explained](/blog/mlb-stats-explained) - [Hitter vs Pitcher Matchup Guide](/blog/hitter-vs-pitcher-matchup-guide) - [MLB Weather Betting Guide](/blog/mlb-weather-betting-guide) ## Before You Lock Check the [Pitching Stats dashboard](/mlb/pitching-stats) for full arsenal breakdowns and the [Hitting Stats page](/mlb/hitting-stats) for pitch mix analysis showing which lineups are most vulnerable to certain pitch types. Confirm lineups and starting pitchers before betting, because a bullpen game changes everything. K/9 and whiff rate together are the strongest predictors of strikeout volume. Our strikeout model scores probable starters across 6 factors: K/9, whiff rate, opposing team K tendency, pitcher quality, workload pace, and venue. Full pitcher profiles on the [Pitching Stats dashboard](/mlb/pitching-stats). **More from HeatCheck HQ:** - [Pitching Stats Dashboard](/mlb/pitching-stats): pitcher arsenals, K rates, and advanced metrics - [Hitting Stats Dashboard](/mlb/hitting-stats): batter K vulnerability and pitch mix analysis - [Dinger Picks Today](/blog/mlb-dinger-of-the-day-aug-20-2026): Statcast driven home run picks - [NRFI Picks Today](/blog/mlb-nrfi-picks-aug-20-2026): no run first inning best bets *Updated as lineups confirm. Full slate at [heatcheckhq.io](https://heatcheckhq.io).* ## Related Resources - Parent hub: [MLB Props Hub](/blog/topic/mlb-props) - Daily stream: [MLB Strikeout Picks](/blog/stream/mlb-strikeout-picks) - Author: [HeatCheck HQ](/blog/author/heatcheck-hq) - Browse all posts: [Sports Betting Insights & Guides](/blog) --- *Data powered by HeatCheck HQ — sports analytics platform. Free tools at https://heatcheckhq.io*