No Run First Inning (NRFI) bets are one of the fastest ways to cash a ticket. You know the pitchers, you know the lineups, and you get your answer before most fans sit down. This week (July 29 through August 4, 2025) has several strong NRFI spots. Below we break down four matchups: date, teams, probable pitchers, and why the first inning should stay scoreless.
Why focus on NRFI bets?
NRFI bets work because of predictability: you know exactly who's pitching and hitting to start the game. First innings are scoreless about 57–58% of the time league-wide, and that number climbs when you've got strong pitching or a weak top of the order. WagerLens NRFI prop cards show pitching trends and lineup data in one view, so you can spot these edges without hours of research.
Tuesday, July 29: Los Angeles Dodgers at Cincinnati Reds
Probable Pitchers: Tyler Glasnow (LAD) vs. Nick Lodolo (CIN)
- Pitchers' first-inning stats: A duel of strikeout artists. Glasnow has a 2.75 ERA since joining the Dodgers, and Lodolo sports a 3.08 ERA with over a strikeout per inning. Both tend to start games locked in. Lodolo's first-inning WHIP is low thanks to his nasty curve, and Glasnow's power fastball/slider combo shuts down the top of the order.
- Lineup and trend analysis: The Dodgers and Reds are two of the higher first-inning scoring teams in MLB (each averaging ~0.68 runs in the 1st). But something's got to give when elite pitching is on the mound. Glasnow can neutralize Cincinnati's young stars (he handles lefty bats like Elly De La Cruz), and Lodolo, a lefty, matches up well against the Dodgers' lefty-heavy power. This is a strength-on-strength matchup that deserves extra scrutiny.
- Venue factors: Great American Ball Park is a bandbox where one mistake can leave the yard. Summer humidity in Cincinnati means the ball carries more, so this NRFI isn't without risk. Still, both pitchers' talent gives the edge to a scoreless first.
- Expected odds: The strong offenses could push the NRFI near even money (-105 to -115). At those odds, you're betting on two frontline pitchers to win the first-inning battle against two aggressive lineups. That's a fair price.
Friday, August 1: Arizona Diamondbacks at The Athletics
Probable Pitchers: Merrill Kelly (ARI) vs. JP Sears (OAK) (projected)
- NRFI angles: Both teams are cold starters. The D-backs have been sluggish in the first inning all year, and the A's have one of the weakest top-of-order lineups in baseball (their 1–2 hitters are contact guys with minimal power). Don't be surprised if neither side threatens in the first frame.
- Pitching matchup: Merrill Kelly (3.38 ERA) is a savvy veteran who rarely beats himself early. He's good at suppressing hard contact in the opening inning. JP Sears (around 4.00 ERA) is the A's steadiest starter and a lefty who can neutralize some of Arizona's top bats. In his first innings this year, Sears has been quietly effective, often escaping without damage even against stronger teams.
- Park and weather: This series is at Sutter Health Park in West Sacramento (the A's temporary home), which plays large like the Oakland Coliseum. Night games here see heavy air, which helps pitchers. Foul territory is expansive, yielding extra outs on pop-ups. Conditions favor an NRFI.
- Expected odds: Given both teams' slow starts, the NRFI might be juiced (-125 to -135 range). That's justified. Arizona's first-inning run rate and Oakland's (likely bottom-three in MLB) both point toward a scoreless first.
Saturday, August 2: San Francisco Giants at New York Mets
Probable Pitchers: Kodai Senga (NYM) vs. Carson Seymour (SF)
- Ace vs. unknown: Kodai Senga has been dominant. With a 1.79 ERA and a 7–3 record, he's in NL Cy Young form and virtually untouchable in the first inning. His forkball yields strikeouts or weak grounders from the outset. On the other side, the Giants are likely using rookie Carson Seymour (3.00 ERA in limited action) as an opener/spot starter. Seymour is unproven, but he's shown composure in his brief MLB time — enough to get three up, three down if he hits his spots.
- Matchup trends: The Mets' offense has been inconsistent and sometimes slow to get going, especially without a classic leadoff spark this year. The Giants shuffle their lineup frequently and lack a power threat at 1-2-3 (no Giant is in the NL top 30 for first-inning OPS). New York's recent first-inning performance has been middling, and San Francisco's early bats have been cold on their road trip.
- The case for NRFI: Senga's microscopic first-inning ERA, a high strikeout rate, and the Giants' low first-inning run percentage on the road all point to a scoreless first.
- Expected odds: Because one pitcher is a question mark, sportsbooks might list NRFI around -110. That's value — you're betting on Senga to dominate as usual and a Giants rookie to handle a lukewarm Mets top order for one frame.
Sunday, August 3: Detroit Tigers at Philadelphia Phillies
Probable Pitchers: Tarik Skubal (DET) vs. Zack Wheeler (PHI)
- Elite pitchers, elite results: This is the NRFI marquee matchup of the week. Both Skubal and Wheeler are leading Cy Young conversations in their leagues. Skubal is 10–2 with an AL-best sub-2.50 ERA, and he didn't allow a first-inning run in 9 of his last 10 starts. Wheeler (~2.60 ERA) has similarly strong first-inning numbers and thrives at home, feeding off the energy at Citizens Bank Park. Put their first-inning ERAs side by side and this one is hard to pass up.
- Lineup factors: The Phillies have a formidable lineup, but Skubal is a lefty, which helps neutralize Philly's left-handed power (Bryce Harper, Kyle Schwarber) in the first inning. On the other side, Detroit's offense is one of the weakest in MLB early in games. The Tigers score in the first inning at a very low rate (near the bottom of MLB), and Wheeler's electric fastball/slider combo should handle Detroit's young hitters.
- Ballpark and weather: Philadelphia in August can be hitter-friendly with warm air, but expect a Sunday evening game (this matchup was flexed to Sunday Night Baseball for the pitching duel). Cooler night temps and the primetime spotlight can actually help pitchers, and these two won't mind it.
- Expected odds: This NRFI will be popular, so expect heavier juice, maybe -140. The payout isn't huge, but two ace-caliber arms going head-to-head in the first inning is about as strong as NRFI setups get. When the data lines up this cleanly, laying the chalk is a sharp play.
Here's a quick summary of this week's NRFI picks:
| Date | Matchup (Probable Starters) | NRFI Rationale |
|---|---|---|
| Tue, July 29, 2025 | Dodgers @ Reds (Glasnow vs. Lodolo) | Power arms vs. power bats. Glasnow (2.75 ERA) and Lodolo (3.08) both start strong, offsetting two of MLB's higher 1st-inning scoring offenses. Trust the arms. |
| Fri, Aug 1, 2025 | D-backs @ Athletics (Kelly vs. Sears) | Arizona and Oakland both start slow. Kelly's veteran poise plus the A's anemic early offense (near worst in MLB) equals a scoreless first, especially in a pitcher-friendly park. |
| Sat, Aug 2, 2025 | Giants @ Mets (Senga vs. Seymour) | Senga's dominance (sub-2.00 ERA) anchors this pick. Giants counter with a rookie, but the Mets' lineup is lukewarm early and SF has no strong first-inning hitters. |
| Sun, Aug 3, 2025 | Tigers @ Phillies (Skubal vs. Wheeler) | Aces duel on Sunday night. Skubal (reigning Cy Young) vs. Wheeler (Cy frontrunner), and neither allows first-inning runs often. Detroit's weak top order faces Wheeler; Philly's sluggers face a tough lefty. |
Every game on this list combines strong starting pitching with weak early-lineup offense. Using WagerLens NRFI prop cards, you can check pitchers' first-inning ERAs, team 1st-inning scoring rates, and compare odds across books before you bet.
Bottom line: The first inning is often the calmest part of a baseball game and the best window for finding value. This week has four strong NRFI spots — confirm them with the data before you place anything.
Stats referenced from official MLB game logs. Odds are subject to change — always check the latest lines before betting.