MLB Picks Today (September 20, 2026): 15 Games, Value Leans & Best Lines

MLB picks today for September 20, 2026: all 15 games on the board with a straight winner pick on each, plus the best number we could find across the major books — plus first-inning YRFI/NRFI leans for every matchup with confirmed starters. No standout value on today’s board — the market is pricing these tight, so shop the reference numbers below.

Full MLB Slate

Over / Under Board

• Over 7 — Athletics @ Cleveland Guardians: our number is 8.58, so we make it 59% to land over.
• Under 10 — Chicago Cubs @ Cincinnati Reds: our number is 8.83, so we make it 57% to land under.
• Over 8.5 — Washington Nationals @ St. Louis Cardinals: our number is 9.18, so we make it 54% to land over.
• Over 10.5 — Seattle Mariners @ Colorado Rockies: our number is 10.93, so we make it 53% to land over.
• Under 8.5 — Kansas City Royals @ Pittsburgh Pirates: our number is 8.03, so we make it 53% to land under.
• Over 7.5 — Boston Red Sox @ Tampa Bay Rays: our number is 7.73, so we make it 52% to land over.

YRFI / NRFI Leans

BetMan’s First-Inning Call

YRFI — Seattle Mariners @ Colorado Rockies

Two shaky arms in Kade Anderson and Tomoyuki Sugano lighting it up early, and that’s before you even factor in the thin Coors air. Model’s got this as the day’s strongest lean and the starter profiles back it up completely.

One call with a little feel behind it — the full board below is the math.

• NRFI Philadelphia Phillies @ New York Mets — 60% chance the first inning stays scoreless (Cristopher Sánchez (2.93 ERA) vs Jonah Tong (3.43 ERA))
• NRFI Kansas City Royals @ Pittsburgh Pirates — 62% chance the first inning stays scoreless (Michael Wacha (3.34 ERA) vs Lake Bachar (3.50 ERA))
• YRFI Athletics @ Cleveland Guardians — 59% chance of a first-inning run (Jack Perkins (6.14 ERA) vs Gavin Williams (3.78 ERA))
• NRFI Boston Red Sox @ Tampa Bay Rays — 52% chance the first inning stays scoreless (Patrick Sandoval (4.99 ERA) vs Griffin Jax (3.80 ERA))
• NRFI Atlanta Braves @ Houston Astros — 60% chance the first inning stays scoreless (Martín Pérez (3.07 ERA) vs Hunter Brown (3.43 ERA))
• NRFI Detroit Tigers @ Chicago White Sox — 52% chance the first inning stays scoreless (Troy Melton (2.52 ERA) vs Davis Martin (3.96 ERA))
• YRFI Washington Nationals @ St. Louis Cardinals — 59% chance of a first-inning run (Jake Irvin (5.51 ERA) vs Quinn Mathews (3.62 ERA))
• NRFI Toronto Blue Jays @ Texas Rangers — 62% chance the first inning stays scoreless (Spencer Miles (2.65 ERA) vs Jacob deGrom (3.79 ERA))
• YRFI Seattle Mariners @ Colorado Rockies — 70% chance of a first-inning run (Kade Anderson (5.33 ERA) vs Tomoyuki Sugano (5.49 ERA))
• YRFI Minnesota Twins @ Los Angeles Angels — 64% chance of a first-inning run (Dean Kremer (5.35 ERA) vs Ryan Johnson (4.88 ERA))
• NRFI Miami Marlins @ San Diego Padres — 54% chance the first inning stays scoreless (Sandy Alcantara (3.84 ERA) vs Walker Buehler (4.58 ERA))
• YRFI New York Yankees @ Arizona Diamondbacks — 52% chance of a first-inning run (Will Warren (3.89 ERA) vs Corbin Burnes (5.87 ERA))
• NRFI Milwaukee Brewers @ Baltimore Orioles — 66% chance the first inning stays scoreless (Jacob Misiorowski (1.89 ERA) vs Brandon Young (3.65 ERA))

New to first-inning markets? Start with our guide: NRFI and YRFI, explained.

How we read these boards: how to read a matchup.