# MLB NRFI Picks Today (May 21, 2026) - Best No Run First Inning Bets > Data-driven NRFI picks for tonight's 7-game MLB slate. Pitching matchups, venue conditions, and weather scored across 8 factors to find the best scoreless first **Date:** 2026-05-21 **Author:** Jason Bowman **Tags:** NRFI, MLB, First Inning, Daily Picks, Betting Strategy, No Run First Inning **Full article:** https://heatcheckhq.io/blog/mlb-nrfi-picks-may-21-2026 **Live picks & dashboards:** https://heatcheckhq.io --- **Today's best MLB NRFI (No Run First Inning) picks for Thursday, May 21, 2026** are CLE @ DET (Score: 81 — 78% combined NRFI rate, Joey Cantillo vs Casey Mize), PIT @ STL (Score: 69 — 67% combined NRFI rate, Braxton Ashcraft vs Dustin May), ATH @ LAA (Score: 58 — 50% combined NRFI rate, Luis Severino vs José Soriano). Rankings are generated by HeatCheck HQ's 8-factor NRFI scoring model, updated daily. # MLB NRFI Picks Today - May 21, 2026 7 games tonight. Here are the pitching matchups most likely to stay scoreless in the first. > [NRFI Dashboard](/mlb/nrfi) - live pitcher data, updated as starters confirm. > **Yesterday's NRFI picks:** [MLB NRFI Bets - May 20](/blog/mlb-nrfi-picks-may-20-2026) ## Tonight's Slate - CLE @ DET (Joey Cantillo vs Casey Mize) - 1:10 PM - PIT @ STL (Braxton Ashcraft vs Dustin May) - 1:15 PM - ATH @ LAA (Luis Severino vs José Soriano) - 9:38 PM - ATL @ MIA (Spencer Strider vs Sandy Alcantara) - 6:40 PM - NYM @ WSH (David Peterson vs Cade Cavalli) - 4:05 PM ## Pick 1: CLE @ DET — Comerica Park (600ft) *78% combined NRFI · 1:10 PM ET* - **Joey Cantillo** (LHP) — 70% NRFI, 3.40 ERA, 1.35 WHIP, streak +3 - **Casey Mize** (RHP) — 86% NRFI, 2.43 ERA, 1.05 WHIP, streak +4 This is the kind of game NRFI bettors live for. Joey Cantillo (70%) and Casey Mize (86%) both clear the 70% threshold individually, and combined they sit at 78%. Casey Mize has gone NRFI in 4 straight starts. Casey Mize's recent ERA (1.41 over his last five) is sharper than his season 2.43. ## Pick 2: PIT @ STL — Busch Stadium (455ft) *67% combined NRFI · 1:15 PM ET* - **Braxton Ashcraft** (RHP) — 78% NRFI, 3.09 ERA, 1.05 WHIP, streak +4 - **Dustin May** (RHP) — 56% NRFI, 4.81 ERA, 1.42 WHIP, streak +3 Streak math says ride the run. Braxton Ashcraft has gone NRFI in 4 straight, Dustin May in 3. Whatever they're doing in the first inning right now is working. Dustin May's recent ERA (3.40 over his last five) is sharper than his season 4.81. Braxton Ashcraft's 1.05 WHIP means very few first-inning baserunners. > **Want the full board?** See all of today's plays on [Top Plays](/top-plays), or dive deeper on the [NRFI dashboard](/mlb/nrfi). ## Pick 3: ATH @ LAA — Angel Stadium (160ft) *50% combined NRFI · 9:38 PM ET* - **Luis Severino** (RHP) — 50% NRFI, 4.45 ERA, 1.57 WHIP, streak -1 - **José Soriano** (RHP) — 50% NRFI, 2.41 ERA, 1.07 WHIP, streak -3 Luis Severino is the anchor here — a 50% NRFI rate that does most of the work for this play. José Soriano on the other side is fine at 50%, but it's the elite arm carrying the lean. Luis Severino's last-five ERA (3.07) is meaningfully better than his season 4.45 — the form is trending the right way. José Soriano's 1.07 WHIP keeps the bases empty early. Worth flagging: José Soriano has allowed a first-inning run in 3 straight starts. ## Honorable Mentions - **ATL @ MIA** — combined 30% rate. - **NYM @ WSH** — combined 26.5% rate. ## Related Guides - [How to Use the NRFI Dashboard](/blog/how-to-use-nrfi-dashboard) - [MLB Weather Betting Guide](/blog/mlb-weather-betting-guide) - [MLB Stats Explained](/blog/mlb-stats-explained) ## Before You Lock Confirm starting pitchers on the [NRFI dashboard](/mlb/nrfi) - a bullpen game kills NRFI value immediately. Check weather at first pitch and be careful at altitude (Coors in particular). NRFI bets land at 55-65% historically; you need ~52.4% to break even at -110. For the complete NRFI methodology - including pitcher evaluation, venue factors, and bankroll sizing - see the [NRFI Strategy Guide](/blog/nrfi-betting-strategy-guide). **More from HeatCheck HQ:** - [Live NRFI Dashboard](/mlb/nrfi) - real-time pitcher data and matchup grades - [Dinger of the Day](/blog/mlb-dinger-of-the-day-may-21-2026) - today's best HR picks - [MLB Streaks](/mlb/streaks) - pitchers and hitters on hot streaks - [NRFI Strategy Guide](/blog/nrfi-betting-strategy-guide) - full methodology breakdown *Picks update as starters confirm. Full slate at [heatcheckhq.io](https://heatcheckhq.io).* ## Related Resources - Parent hub: [MLB Props Hub](/blog/topic/mlb-props) - Daily stream: [MLB NRFI Picks](/blog/stream/mlb-nrfi-picks) - Author: [Jason Bowman](/blog/author/jason-bowman) - Browse all posts: [Sports Betting Insights & Guides](/blog) --- *Data powered by HeatCheck HQ — sports analytics platform. Free tools at https://heatcheckhq.io*