NRFI Best Bets Today: MLB No Run First Inning Picks + Predictions for May 15

Happy Friday, everyone! You’ve found my NRFI best bets today, and I’ve got you covered with top No Run First Inning picks and YRFI plays for Friday, May 15. We’ll break down the best MLB odds on Hard Rock Bet Sportsbook, so let’s dive into the first-inning action.

NRFI/YRFI Best Bets Today for Friday, May 15

Here are the games I’m targeting for first-inning bets today, and I’m focusing on three YRFI picks for a change:

• Orioles @ Nationals – Nationals Park – 6:45 p.m. ET

• Giants @ A’s – Sutter Health Park – 9:40 p.m. ET

• Padres @ Mariners – T-Mobile Park – 9:40 p.m. ET

YRFI Pick: Baltimore Orioles at Washington Nationals

• The Pick: Yes Run First Inning (-120)

We’ll start in D.C., where the Baltimore Orioles visit the Washington Nationals in one of the most appealing YRFI spots on the board.

Zack Littell might be having the roughest season of any regular starter in the league right now, and that’s not an exaggeration. His 2026 Statcast page shows a 7.63 expected ERA, sitting in the 1st percentile, with a .313 expected batting average against and bottom-of-the-scale strikeout and whiff rates.

Littell is allowing a 12.3% barrel rate and 47.1% hard-hit rate with only a 37.7% ground-ball rate, which is a brutal combination for any ballpark.

Gunnar Henderson is expected to lead off and brings MVP-level power, while Adley Rutschman in the three-hole has been scorching since coming off the injured list, with multiple home runs over the last week.

Sandwiched around them, Baltimore packs power with Taylor Ward and Pete Alonso, giving Littell a nasty mix of lefty and righty pop at the top of the order.

On the other side, Shane Baz hasn’t been as bad as Littell, but he’s not a shutdown arm right now either. His 2026 xERA sits in the mid-4s, with league-average strikeout numbers and a below-average ground-ball rate.

That matters against a Nationals’ lineup that’s been extra pesky, with three of the first four projected hitters swinging from the left side, including James Wood — who owns a massive expected ISO vs. right-handed pitchers at .368 — and Luis García, who rarely strikes out.

With Littell’s underlying numbers screaming blowup risk, Baz closer to average than elite, and both lineups featuring dangerous bats near the top, -120 for at least one run in the first inning is a number I’m happy to lay.

YRFI Pick: San Francisco Giants at Athletics

• The Pick: Yes Run First Inning (-135)

Next up, we head to Sacramento for Giants vs. A’s at tiny Sutter Health Park, which offers one of the biggest run-scoring upgrades on Friday’s slate.

Anytime you can get San Francisco’s lineup away from Oracle Park — especially into a small, hitter-friendly yard — the offense gets an instant boost. Now add in temperatures projected north of 85 degrees, and you’ve got a true “ball should fly” environment.

Tyler Mahle hasn’t been able to take advantage of the “first time through the order” edge the way most starters do. He’s carrying a 4.41 ERA in that split this season, which is rough given that many pitchers use that opening trip to drag their overall ERA down.

Statcast backs up the issues: a 4.42 xERA, 11% walk rate, and 10.2% barrel rate tell you he’s putting too many runners on and giving up too many loud swings when hitters are seeing him for the first time.

On the other side, Aaron Civale is simply an underwhelming starting pitcher. The ground-ball rate that once helped him survive doesn’t exist anymore, as he sits in just the 7th percentile in GB% — and his hard-hit rate is in the 10th percentile, meaning the ball is in the air and being hit hard against him on a regular basis.

Civale’s xERA in the low-4s with a sub-20% strikeout rate paints the picture of a totally average arm whose stuff is playing down in this environment. With two vulnerable starters, a giant park upgrade for the Giants, and game-time temps in the mid-80s, -135 is a fair price to pay for a YRFI pick today.

YRFI Pick: San Diego Padres at Seattle Mariners

• The Pick: Yes Run First Inning (+105)

We’ll close in Seattle, where the Padres visit the Mariners at T-Mobile Park. It’s not a great ballpark for hitters, but the price is great, and two pitchers showing signs of regression are taking the bump.

Emerson Hancock has the surface stats of a steady early-season breakout: a 3.21 ERA over 47.2 innings with 50 strikeouts and a tidy 1.01 WHIP. Dig one layer deeper, though, and you can see where things might normalize.

His xERA sits at 3.91 (53rd percentile), and he’s giving up an 11.5% barrel rate despite a strong 27% strikeout rate and elite 4.9% walk rate.

Randy Vasquez is on the other side of the regression coin. His 2026 line looks solid at first glance — 3.05 ERA over 44.1 innings, but Statcast pegs his xERA at 4.64 (31st percentile) with a .260 expected batting average against.

The walks and strikeouts have come a long way (23.2% K rate, 7.2% BB rate, both above league average), but the contact profile hasn’t caught up. He’s still allowing a 12.1% barrel rate and a 41.9% hard-hit rate.

Zoom out to last season, and there’s a clear pattern — he carried a 5.37 xERA in 2025 with one of the worst barrel rates among qualified pitchers.

T-Mobile Park will never be mistaken for a launching pad, and the weather won’t give hitters the same boost we see in Sacramento. But with two starters whose ERAs are outpacing their expected stats, double-digit barrel rates on both sides, and a Padres lineup capable of punishing mistakes early, +105 is a very reasonable number to ask for just one run in the first inning.

Those are my best NRFI and YRFI picks today. Good luck, and enjoy the games — and if you want more action while you’re sweating that first inning, you can always explore Hard Rock Bet’s full menu of game props and first-inning markets.

More ways to play

If you’re riding with a NRFI and every pitch matters early, Florida players can keep the excitement going with Real Money Games powered by Past Motor Racing, available exclusively on Hard Rock Bet. It’s a fast, fun way to stay in the action while you wait for the first inning to wrap up.