MLB Picks Today (September 12, 2026): 15 Games, Value Leans & Best Lines

MLB picks today for September 12, 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 8.5 — Colorado Rockies @ Detroit Tigers: our number is 9.8, so we make it 57% to land over — against the posted total.
• Under 8 — San Diego Padres @ San Francisco Giants: our number is 6.82, so we make it 56% to land under.
• Over 7.5 — Houston Astros @ Tampa Bay Rays: our number is 8.33, so we make it 55% to land over.
• Under 9 — Cleveland Guardians @ Minnesota Twins: our number is 8.27, so we make it 55% to land under.
• Over 8 — Los Angeles Angels @ Washington Nationals: our number is 8.72, so we make it 54% to land over.
• Under 9.5 — Seattle Mariners @ Athletics: our number is 8.95, so we make it 53% to land under — against the posted total.

YRFI / NRFI Leans

BetMan’s First-Inning Call

NRFI — San Diego Padres @ San Francisco Giants

Seventy-five percent lean and the arms back it up cold, Perdomo’s been untouchable and King’s not far behind. Easiest lean on the board, first inning stays scoreless here.

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

• YRFI Colorado Rockies @ Detroit Tigers — 56% chance of a first-inning run (Tanner Gordon (5.40 ERA) vs Andrew Sears (4.38 ERA))
• YRFI New York Mets @ New York Yankees — 52% chance of a first-inning run (Zac Thornton (3.53 ERA) vs Gerrit Cole (3.41 ERA))
• NRFI Pittsburgh Pirates @ Chicago Cubs — 55% chance the first inning stays scoreless (Paul Skenes (3.83 ERA) vs Clay Holmes (2.83 ERA))
• NRFI Baltimore Orioles @ Toronto Blue Jays — 68% chance the first inning stays scoreless (Kyle Bradish (3.91 ERA) vs Spencer Miles (2.77 ERA))
• NRFI Los Angeles Angels @ Washington Nationals — 66% chance the first inning stays scoreless (Walbert Ureña (2.74 ERA) vs Andrew Alvarez (3.60 ERA))
• NRFI San Diego Padres @ San Francisco Giants — 75% chance the first inning stays scoreless (Michael King (3.00 ERA) vs Cesar Perdomo (0.90 ERA))
• NRFI Kansas City Royals @ Boston Red Sox — 60% chance the first inning stays scoreless (Randy Dobnak (2.54 ERA) vs Ranger Suarez (3.44 ERA))
• YRFI Cleveland Guardians @ Minnesota Twins — 56% chance of a first-inning run (Daniel Espino (2.70 ERA) vs Connor Prielipp (5.25 ERA))
• NRFI Los Angeles Dodgers @ Miami Marlins — 54% chance the first inning stays scoreless (Tyler Glasnow (3.12 ERA) vs Tyler Phillips (3.51 ERA))
• NRFI Houston Astros @ Tampa Bay Rays — 57% chance the first inning stays scoreless (Peter Lambert (3.67 ERA) vs Ian Seymour (4.33 ERA))
• NRFI Chicago White Sox @ St. Louis Cardinals — 60% chance the first inning stays scoreless (Sean Newcomb (2.71 ERA) vs Kyle Leahy (3.41 ERA))
• YRFI Texas Rangers @ Arizona Diamondbacks — 61% chance of a first-inning run (Kumar Rocker (4.61 ERA) vs Brandon Pfaadt (3.53 ERA))
• YRFI Seattle Mariners @ Athletics — 56% chance of a first-inning run (Bryan Woo (4.03 ERA) vs Gage Jump (5.12 ERA))

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

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