3 MLB Strikeout Props to Back on May 17, 2026: Skenes, Williams, Kirby

Sunday’s MLB slate is loaded with 15 games and some of the best pitching matchups of the 2026 season. When you see Paul Skenes, Gavin Williams, and George Kirby all taking the mound on the same afternoon, strikeout prop bettors should be paying close attention.

Each of these three arms brings a distinct reason to back them — and today the numbers line up in a way that makes all three look like genuine value. Here is a breakdown of why each pitcher’s strikeout prop deserves your attention on May 17.

Paul Skenes Is Simply Not Human Right Now

When you talk about elite pitching in 2026, Paul Skenes is the first name out of everyone’s mouth. The 22-year-old Pittsburgh Pirates ace carries a 1.98 ERA and 56 strikeouts across just 50.0 innings this season. That works out to more than 10 strikeouts per nine innings, which puts him among the most dominant arms in all of baseball right now.

His most recent start against Colorado was nothing short of jaw-dropping: 10 strikeouts over seven innings while giving up zero earned runs. In five of his last nine starts, Skenes has gone over the 6.5 strikeout line. The last three starts have produced 10, 7, and 9 strikeouts. He is coming home to PNC Park today, where he owns a 2.41 ERA and has struck out 34 batters in just 26.1 innings. Home starts have been his best performances all season.

The Philadelphia Phillies present a lineup Skenes has handled before. He has faced Philadelphia earlier this season and delivered, and the Phillies have been a strikeout-prone group against power right-handers. With the line set at Over 6.5 K (-120 at bet365), you are essentially asking Skenes to do what he has done in five of his last nine outings. The line feels low given what he has been doing lately. Check your sportsbook reviews to find the best price on this prop.

Gavin Williams and His Wild Strikeout Ceiling

Gavin Williams has been one of the more fascinating pitchers in baseball this year. Through nine starts, the Cleveland Guardians right-hander has amassed 66 strikeouts across 55.1 innings — a rate of 10.73 strikeouts per nine innings. He also has back-to-back strong starts in his most recent outings that you need to know about: 11 strikeouts against Baltimore and 9 strikeouts against Tampa Bay back in late April.

Yes, Williams has been inconsistent in May, posting 7.50 ERAs in his last two outings. But there is a meaningful difference between his ERA struggles and his strikeout output. In his very last start on May 10, he struck out 6 batters. Before that: 7 strikeouts, 9 strikeouts, and 11 strikeouts in consecutive outings. The strikeouts have stayed high even when the results have not.

Today he faces a Cincinnati Reds lineup at Progressive Field. The Reds have a starter in Brady Singer who carries a 5.79 ERA, suggesting both offenses may get their swings in today — but Williams does not need Cincinnati to score to rack up Ks. The FanDuel line sits at Over 7.5 strikeouts at +128, which means you are getting plus money on a pitcher who has cleared 7 strikeouts in four of his last six starts. That is a line worth targeting for sure.

George Kirby Is Built for This Spot

George Kirby is the kind of pitcher who does not blow you away with pure velocity, but he gets outs in bunches through elite contact management and command. The Seattle Mariners ace enters today’s night game against the San Diego Padres with a 2.84 ERA and 46 strikeouts in 57.0 innings on the season.

His May numbers specifically stand out: two starts this month totaling 12.0 innings and 12 strikeouts, which works out to exactly 6.0 per start. At home in Seattle, where he has posted a 2.80 ERA and 28 strikeouts in 32.1 innings, Kirby is in his best environment. T-Mobile Park suppresses offense, and the Padres enter at 27-18 but now face a pitcher who is very sharp at home.

The FanDuel line on Kirby sits at Over 5.5 K at -120. Given his six-per-start pace in May and his home ballpark advantage, crossing 6 strikeouts seems well within reach. The Padres do not strike out at an alarming rate, but Kirby does not need them to — he just needs his typical workload and his usual command. This feels like a spot where Kirby does exactly what he has been doing all month. You can compare lines across multiple books using the DraftKings promo code or the FanDuel promo code to get started.

Lock These In Before First Pitch

All three pitchers today represent a different flavor of the strikeout prop market. Skenes is the elite ace with a floor that makes the 6.5 line look reasonable. Williams is the boom-or-bust option with plus-money attached that rewards bettors willing to ride with his ceiling. Kirby is the reliable home favorite whose May numbers give confidence to the 5.5 over. Together, these three form a strong strikeout card for Sunday.

• Paul Skenes OVER 6.5 Strikeouts (-120 at bet365)
• Gavin Williams OVER 7.5 Strikeouts (+128 at FanDuel)
• George Kirby OVER 5.5 Strikeouts (-120 at FanDuel)

Check your book for current lines as odds may shift before first pitch. All three starts are underway by 7:20 PM ET at the latest, with Skenes and Williams going early afternoon.