Best NRFI Bets Today: No Run First Inning Prop Bets for May 21

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A baseball sits on the pitchers mound before the first inning of a baseball game against the San Francisco Giants, Saturday Sept. 24, 2022, in Phoenix.
(AP Photo/Darryl Webb)
BetMGM Betting @BETMGM May 21, 2024, 4:35 PM
  • Get NRFI picks & predictions for today’s games: Tuesday, May 21
  • No Run First Inning (NRFI) bets allow you to wager on whether or not a run will be scored in the 1st inning

Looking for the best NRFI bets for Tuesday‘s MLB slate of games?

The NRFI prediction model used below factors in starting pitcher performances this season, opposing hitter matchups, historical NRFI outcomes for each pitcher and first-inning trends for each team.

Bookmark this page, as it’s updated every morning with NRFI betting markets as they become available.


Bet now on NRFI, YRFI & all MLB prop bets with BetMGM


Matchups with a “Yes” under NRFI Prediction are games from today that the model believes will result in a no run first inning. Current betting odds and the confidence level of that NRFI prediction are also provided.

NRFI Bets Today, May 21

Matchup NRFI Prediction NRFI Odds NRFI Confidence
Rangers vs Phillies Yes -110 59.7%
Padres vs Reds Yes -115 63.9%
Red Sox vs Rays Yes -120 60.0%
Tigers vs Royals Yes -110 61.4%
Orioles vs Cardinals Yes -115 66.0%
Diamondbacks vs Dodgers Yes -110 62.3%
Mets vs Guardians No -135
Brewers vs Marlins No +100
Giants vs Pirates No -110
Twins vs Nationals No -110
Mariners vs Yankees No -105
White Sox vs Blue Jays No +120
Braves vs Cubs No -145
Angels vs Astros No -110
Rockies vs Athletics No -110

Rangers vs Phillies NRFI Bet Today, No Run First Inning:

Yes, the NRFI model predicts a no run first inning with 59.7% confidence for the Rangers vs Phillies game today for pitchers Jon Gray (2-1), 2.08 ERA and Ranger Suarez (8-0), 1.41 ERA.

Padres vs Reds NRFI Bet Today, No Run First Inning:

Yes, the NRFI model predicts a no run first inning with 63.9% confidence for the Padres vs Reds game today for pitchers Joe Musgrove (3-3), 6.48 ERA and Andrew Abbott (2-4), 3.06 ERA.

Red Sox vs Rays NRFI Bet Today, No Run First Inning:

Yes, the NRFI model predicts a no run first inning with 60.0% confidence for the Red Sox vs Rays game today for pitchers Cooper Criswell (2-1), 2.80 ERA and Zack Littell (2-2), 3.47 ERA.

Tigers vs Royals NRFI Bet Today, No Run First Inning:

Yes, the NRFI model predicts a no run first inning with 61.4% confidence for the Tigers vs Royals game today for pitchers Casey Mize (1-2), 3.48 ERA and Alec Marsh (3-1), 2.43 ERA.

Orioles vs Cardinals NRFI Bet Today, No Run First Inning:

Yes, the NRFI model predicts a no run first inning with 66.0% confidence for the Orioles vs Cardinals game today for pitchers Kyle Bradish (0-0), 2.64 ERA and Lance Lynn (1-2), 4.17 ERA.

Diamondbacks vs Dodgers NRFI Bet Today, No Run First Inning:

Yes, the NRFI model predicts a no run first inning with 62.3% confidence for the Diamondbacks vs Dodgers game today for pitchers Brandon Pfaadt (1-3), 4.12 ERA and Gavin Stone (4-1), 3.28 ERA.


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What is a NRFI bet?

NRFI stands for “no run first inning,” meaning a NRFI bet will win if no runs are scored by either team in the first inning of a baseball game.

Alternatively, you can place a YRFI bet for “yes run first inning.” If at least one run is scored by either team, YRFI bets win.

How to bet on a NRFI bet?

It’s important to consider NRFI odds, pitching trends and statistics when placing a NRFI bet. By doing research on starting pitcher first inning performances, as well as opposing team’s offensive lineups, you can better make a decision on your NRFI bet.

NRFI and YRFI odds are available at online sportsbooks for each MLB regular-season and postseason game.

Example of a NRFI / YRFI bet:

Here’s an example of NRFI and YRFI bets for a game between the Philadelphia Phillies and New York Mets:

  • NRFI: -130
  • YRFI: +110

If you bet $20 on NRFI at -130, the potential payout is $35.58 (including stake). If you bet $20 on YRFI at +110, the potential payout is $42 (including stake).

Perhaps the Phillies leave two baserunners stranded and don’t score in the top of the first inning. Now they must hold the Mets to zero runs for NRFI bets to cash. But the Mets hit a leadoff home run to take a 1-0 lead, which cashes the YRFI bet and returns a profit of $22.

The remainder of the inning is now irrelevant to NRFI and YRFI bets. All bets were settled the moment the leadoff hitter crossed home plate with the home run.

Bet on NRFI & YRFI at BetMGM

At BetMGM, you can track NRFI & YRFI records and stats to know which teams average the most and least first-inning runs scored and allowed. And keep an eye on updated sportsbook promotions for potential Odds Boosts, Bonus Bets, and other promos to use on NRFI odds.

If you don’t have a BetMGM account, check your eligibility for the sportsbook welcome offer to start placing MLB bets.

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About the Author

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Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.

Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.