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MLB Strikeout Props: September 20, 2026 (Pitcher K Picks)

|HeatCheck HQ|4 min read

Today's best MLB strikeout prop picks for Sunday, September 20, 2026 are Jacob Misiorowski (Score: 86, 13.17 K/9, 37.3% whiff rate), Gavin Williams (Score: 74, 12.16 K/9, 32.8% whiff rate), Jacob deGrom (Score: 71, 11.33 K/9, 33.8% whiff rate). Rankings are generated by HeatCheck HQ's six factor pitcher K scoring model, updated daily.

MLB Strikeout Props Today: September 20, 2026

29 probable starters scored across 15 games. These are today's top strikeout prop targets.

Pitching Stats Dashboard: full pitcher arsenals and K metrics for every starter.

Yesterday's K picks: MLB Strikeout Picks: September 19

Today's Slate

  • PHI at NYM (Cristopher Sánchez vs Jonah Tong), 1:10 PM ET
  • KC at PIT (Michael Wacha vs Lake Bachar), 1:35 PM ET
  • CHC at CIN (David Peterson vs Rhett Lowder), 1:40 PM ET
  • ATH at CLE (Jack Perkins vs Gavin Williams), 1:40 PM ET
  • BOS at TB (Patrick Sandoval vs Griffin Jax), 1:40 PM ET
  • ATL at HOU (Martín Pérez vs Hunter Brown), 2:10 PM ET
  • DET at CWS (Troy Melton vs Davis Martin), 2:10 PM ET
  • WSH at STL (Jake Irvin vs Quinn Mathews), 2:15 PM ET
  • TOR at TEX (Spencer Miles vs Jacob deGrom), 2:35 PM ET
  • SEA at COL (Kade Anderson vs Tomoyuki Sugano), 3:10 PM ET
  • MIN at LAA (Dean Kremer vs Ryan Johnson), 4:07 PM ET
  • SF at LAD (Matt Wilkinson vs TBD), 4:10 PM ET
  • MIA at SD (Sandy Alcantara vs Walker Buehler), 4:10 PM ET
  • NYY at AZ (Will Warren vs Corbin Burnes), 4:10 PM ET
  • MIL at BAL (Jacob Misiorowski vs Brandon Young), 7:20 PM ET

Pick 1: Jacob Misiorowski, MIL vs BAL

RHP | 243 K on season | Oriole Park at Camden Yards

243 K · 13.17 K/9 · 37.3% whiff · 1.89 ERA · 0.81 WHIP · 22.0% opp K rate

Top K play tonight. When the K/9 is 13.17, the projection writes itself. Jacob Misiorowski is a strikeout artist by trade, and BAL's lineup is the next set of victims.

The 37.3% whiff rate underneath confirms the stuff is real, not BABIP fueled. The curveball (43.6% whiff) is the put away offering when he needs it. Jacob Misiorowski is my strikeout lean tonight.

Dig deeper into pitcher arsenals on the Pitching Stats dashboard: see pitch mix, whiff rates, and velocity for every starter.

Pick 2: Gavin Williams, CLE vs ATH

RHP | 235 K on season | Progressive Field

235 K · 12.16 K/9 · 32.8% whiff · 3.78 ERA · 1.10 WHIP · 22.0% opp K rate

When the K/9 is 12.16, the projection writes itself. Gavin Williams is a strikeout artist by trade, and ATH's lineup is the next set of victims.

The 32.8% whiff rate underneath confirms the stuff is real, not BABIP fueled. The sweeper (43.8% whiff) is the put away offering when he needs it. Gavin Williams is my strikeout lean tonight.

Pick 3: Jacob deGrom, TEX vs TOR

RHP | 194 K on season | Globe Life Field

194 K · 11.33 K/9 · 33.8% whiff · 3.79 ERA · 1.07 WHIP · 22.0% opp K rate

When the K/9 is 11.33, the projection writes itself. Jacob deGrom is a strikeout artist by trade, and TOR's lineup is the next set of victims.

The 33.8% whiff rate underneath confirms the stuff is real, not BABIP fueled. The changeup (47.0% whiff) is the put away offering when he needs it. Lock Jacob deGrom for the strikeout over.

Honorable Mentions

  • Cristopher Sánchez (PHI) vs NYM: 10.02 K/9, 31.7% whiff, 2.93 ERA, 215 K
  • Lake Bachar (PIT) vs KC: 9.43 K/9, 29.8% whiff, 3.50 ERA, 86 K
  • Griffin Jax (TB) vs BOS: 9.51 K/9, 30.1% whiff, 3.80 ERA, 110 K

Related Guides

Before You Lock

Check the Pitching Stats dashboard for full arsenal breakdowns and the Hitting Stats page 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.

More from HeatCheck HQ:

Updated as lineups confirm. Full slate at heatcheckhq.io.

Related Resources

HeatCheck HQ

Editorial & Modeling Team

HeatCheck HQ combines betting market context with sport-specific model outputs across MLB, NBA, and NFL prop markets. Daily picks posts are auto-generated from our scoring models and reviewed by the team for editorial quality.

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