# MLB NRFI Picks: September 20, 2026 (No Run First Inning) > No Run First Inning picks for September 20, 2026. 15 games scored for joint first-inning scoreless probability to find tonight's best NRFI spots. **Date:** 2026-09-20 **Author:** HeatCheck HQ **Tags:** NRFI, MLB, First Inning, Daily Picks, Betting Strategy, No Run First Inning **Full article:** https://heatcheckhq.io/blog/mlb-nrfi-picks-sep-20-2026 **Live picks & dashboards:** https://heatcheckhq.io --- **Today's best MLB NRFI (No Run First Inning) picks for Sunday, September 20, 2026** are MIA @ SD (Score: 71, 71% NRFI probability, Sandy Alcantara vs Walker Buehler), NYY @ AZ (Score: 61, 61% NRFI probability, Will Warren vs Corbin Burnes), BOS @ TB (Score: 60, 60% NRFI probability, Patrick Sandoval vs Griffin Jax). Rankings are generated by HeatCheck HQ's joint-probability NRFI scoring model, updated daily. # MLB NRFI Picks Today: September 20, 2026 A slate of 15 games, scored for NRFI value. These are the cleanest first inning spots on the board. > [NRFI Dashboard](/mlb/nrfi): live pitcher data, updated as starters confirm. > **Yesterday's NRFI picks:** [MLB NRFI Bets for September 19](/blog/mlb-nrfi-picks-sep-19-2026) ## Tonight's Slate - MIA at SD (Sandy Alcantara vs Walker Buehler), 4:10 PM - NYY at AZ (Will Warren vs Corbin Burnes), 4:10 PM - BOS at TB (Patrick Sandoval vs Griffin Jax), 1:40 PM - PHI at NYM (Cristopher Sánchez vs Jonah Tong), 1:10 PM - KC at PIT (Michael Wacha vs Lake Bachar), 1:35 PM - MIL at BAL (Jacob Misiorowski vs Brandon Young), 7:20 PM - SEA at COL (Kade Anderson vs Kyle Freeland), 3:10 PM - CHC at CIN (David Peterson vs Rhett Lowder), 1:40 PM - DET at CWS (Troy Melton vs Davis Martin), 2:10 PM ## Miami Marlins at San Diego Padres *Sandy Alcantara (RHP): 84% NRFI, 3.84 ERA, 1.23 WHIP, 6.5 K/9, 2.5 BB/9, NRFI streak of 1. Walker Buehler (RHP): 80% NRFI, 4.58 ERA, 1.37 WHIP, 7.7 K/9, 3.4 BB/9, NRFI streak of 3. First pitch 4:10 PM ET at Petco Park (15 ft).* Sandy Alcantara anchors this one at 84% NRFI, and the combined 71% rate keeps the game in play as a lean. Walker Buehler holds up his end too, a 80% scoreless rate that only needs to match the moment. The pressure point is the Miami Marlins lineup, which has handled RHP well this year at a .752 OPS in that split, so Walker Buehler cannot afford a sloppy first. NRFI projects clean here. ## New York Yankees at Arizona Diamondbacks *Will Warren (RHP): 71% NRFI, 3.89 ERA, 1.36 WHIP, 8.9 K/9, 3.1 BB/9, NRFI streak of 4. Corbin Burnes (RHP): 100% NRFI, 5.87 ERA, 1.17 WHIP, 7.5 K/9, 2.5 BB/9, NRFI streak of 2. First pitch 4:10 PM ET at Chase Field, indoor.* Corbin Burnes is the reason to look here, a 100% scoreless rate in the first that carries most of the weight for this lean. Will Warren is the softer side at 71% NRFI, but he only has to be ordinary in the first for this to cash. The pressure point is the New York Yankees lineup, which has handled RHP well this year at a .747 OPS in that split, so Corbin Burnes cannot afford a sloppy first. We will take NRFI here, a lean rather than a lock. > **Want the full board?** See all of today's plays on [Top Plays](/top-plays), or go deeper on the [NRFI dashboard](/mlb/nrfi). ## Boston Red Sox at Tampa Bay Rays *Patrick Sandoval (LHP): 83% NRFI, 4.99 ERA, 1.79 WHIP, 9.8 K/9, 4.6 BB/9, NRFI streak of 4. Griffin Jax (RHP): 71% NRFI, 3.80 ERA, 1.20 WHIP, 9.5 K/9, 2.9 BB/9, NRFI streak of 2. First pitch 1:40 PM ET at Tropicana Field, indoor.* Patrick Sandoval anchors this one at 83% NRFI, and the combined 60% rate keeps the game in play as a lean. Griffin Jax is the softer side at 71% NRFI, but he only has to be ordinary in the first for this to cash. Patrick Sandoval arrives on a run of 4 straight scoreless first innings. The pressure point is the Boston Red Sox lineup, which has handled RHP well this year at a .740 OPS in that split, so Griffin Jax cannot afford a sloppy first. The lean is NRFI, carried by the stronger arm. ## Honorable Mentions - **Philadelphia Phillies at New York Mets:** Jonah Tong sitting at 100% NRFI. - **Kansas City Royals at Pittsburgh Pirates:** Lake Bachar riding a run of 4 scoreless first innings. - **Milwaukee Brewers at Baltimore Orioles:** a combined 56% NRFI rate. ## Games to Avoid These matchups carry the highest first inning scoring risk on tonight's slate. **Seattle Mariners at Colorado Rockies.** Coors does what Coors does. At 5,200 feet the ball carries, and even the better arm here gives back margin in the first. We are passing here. **Chicago Cubs at Cincinnati Reds.** David Peterson has not shown the early command to trust, a 4.1 BB/9 that invites first inning traffic. This is a spot to skip. **Detroit Tigers at Chicago White Sox.** Troy Melton has surrendered a run in the first in 3 straight starts, and that trend matters more than the 58% season rate. This is a spot to skip. ## 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 the starting pitchers on the [NRFI dashboard](/mlb/nrfi). A bullpen game kills NRFI value immediately. Check the weather at first pitch and be careful at altitude, Coors in particular. NRFI bets land 55% to 65% of the time historically, and you need roughly 52.4% to break even at minus 110 odds. 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-sep-20-2026): 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: [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*