Gerrit Cole’s 3.63 ERA, 1.10 WHIP, and just 22 walks in 121.1 innings anchor the Yankees’ side of a 7.0 total that a raw projection model says should be higher — but raw numbers don’t account for suppression ceilings. The Over is sitting at flat money while the Under draws -120, and the gap between what the market implies and what Cole’s home-start profile actually does is the friction worth examining here.
Ian Seymour vs Gerrit Cole: Tampa Bay Rays at New York Yankees Betting Preview
Tampa Bay clinched the AL East last night in Game 2 of the doubleheader. The Yankees took Game 1 behind Carlos Rodón’s eight dominant innings. Tonight’s matchup shifts to Gerrit Cole versus Ian Seymour, and the total of 7.0 is asking you to believe this game stays remarkably quiet. The market’s argument is simple: Cole is a legitimate ace, Seymour has solid enough peripherals on paper, and both teams may come in flat — Tampa Bay riding a clinch high, New York playing out the string with limited postseason implications.
Yes, there’s a significant gap between the raw run projection and the posted total. But that gap doesn’t automatically mean you hammer the Over. It means you interrogate the assumptions baked into each side — and when you do that work here, Cole’s elite suppression profile, his walk avoidance, and his command in home starts make a compelling case that this game plays under 7.0. The Under at -120 is the right bet.
The market has priced Cole’s suppression ceiling alongside Seymour’s peripherals, and while Seymour has real vulnerabilities, the Yankees’ lineup — missing Aaron Judge — and Tampa Bay’s bullpen situation both point toward a game that stays tighter than the raw numbers imply. The number is defensible, and buying into it at -120 is how I’m playing tonight.
Game Info & Betting Lines
- Date/Time: Wednesday, September 23, 2026 | 7:05 PM ET
- Venue: Yankee Stadium | Park Factor: 1.05 (hitter-friendly)
- TV: MLB.TV, Prime Video, Rays.TV
- Probable Starters: Ian Seymour (TB) vs Gerrit Cole (NYY)
- Moneyline: Tampa Bay Rays +130 / New York Yankees -157
- Run Line: New York Yankees -1.5 (+148) / Tampa Bay Rays +1.5 (-180)
- Total: 7.0 (Over +100 / Under -120)
Why This Number Is Defensible
The market’s case for the Under starts and ends with Gerrit Cole. He carries a 3.63 ERA, a 1.10 WHIP, and has walked just 22 batters in 121.1 innings — one of the most efficient strikeout-to-walk profiles in the American League. When Cole is on, he limits base traffic aggressively, and his walk avoidance alone tells you this game won’t get inflated by free passes on the New York side. Yankee Stadium’s 1.05 park factor is a mild headwind, not Coors Field. The Under at -120 reflects real sharp respect for what Cole can do in a home start.
Tampa Bay’s recent offensive context adds another layer. The Rays scored zero runs in Game 1 last night before erupting for six in Game 2. The sample is noisy, but a team that just clinched may not arrive tonight with the same offensive urgency — and their projected lineup tonight features Díaz, Aranda, Caminero, DeLuca, Simpson, Williamson, Fortes, Walls, and Mullins. That’s a competent group, but Cole’s WHIP and walk profile are tailor-made to keep them from stringing together enough traffic to threaten the total on their own.
Seymour does have real vulnerabilities — his 4.38 ERA and 25 home runs allowed in 127.1 innings are legitimate concerns against a Yankees lineup with 217 team home runs. But with Judge on the IL and the Yankees playing out the string, Seymour’s passable peripherals are good enough to limit blowout risk. His changeup (.257 xwOBA-against, 37.7% whiff rate) is a genuine weapon that can keep the Yankees lineup from going off. This isn’t a game where Seymour needs to be elite — he just needs to be competent enough for Cole to do the heavy lifting on the other side. That’s a realistic ask.
What Separates the Pitching
Cole and Seymour are not in the same tier, and that asymmetry actually works in favor of the Under. Cole’s four-seam fastball sits at 96.8 mph and accounts for nearly half his pitch mix (48.7% usage), generating a whiff rate of 19.5% and an xwOBA-against of .296 — elite suppression numbers for a heater used that frequently. He layers in a slider at 89.5 mph (25.0% whiff) and a changeup at 86.0 mph (.258 xwOBA-against) that functions as his true put-away offering. His knuckle-curve adds deception at 83.3 mph. The result is a pitcher who creates short innings, limits free passes, and forces contact on his terms. With only 22 walks in 121.1 IP, Cole is not going to hand the Rays baserunners — he makes them earn everything. Against a Rays lineup without their most dangerous power bats driving the BvP exposure, Cole’s home-game control is a near-lock to suppress Tampa Bay’s side of the total.
Seymour’s profile is more volatile, but it’s not hopeless. His best weapon is his changeup — 29.4% usage, 83.5 mph, 37.7% whiff rate, and an xwOBA-against of just .257. When that pitch is working, he misses bats at a legitimate rate. His sweeper adds another layer at 81.7 mph with a 28.3% whiff and .283 xwOBA-against. The concern is his sinker — used 15.8% of the time, it gets tagged for a .384 xwOBA — and his overall home run rate signals vulnerability. But the Yankees lineup facing him tonight has real swing-and-miss liabilities to work with.
Look at the matchup data: Ben Rice has 7 plate appearances against Seymour with a .429 average, 2 HR, and 2K — legitimately dangerous in a small sample, but 24.3% K rate and a whiff rate of 23.7% overall means Seymour’s changeup can attack him. Cody Bellinger has 6 plate appearances against Seymour with a .500 average, 1 HR, and 2K — again a real threat, but the strikeout exposure is there. Heliot Ramos carries a .504 xwOBA against left-handed pitching — the highest split in this lineup — but also whiffs at a 26.0% clip and has exactly 1 PA against Seymour with a strikeout. Spencer Jones sits at a .554 xwOBA versus lefties but whiffs at a punishing 36.8% rate — exactly the type of hitter Seymour’s changeup was built to exploit.
The Yankees have power, no question. But Judge is out, and Seymour’s put-away arsenal — led by that changeup — gives him a real path to limiting the damage. Cole will keep the Rays in check. Seymour’s job is to be good enough. That’s a low enough bar that the Under remains alive deep into this game.
The Pushback
The strongest case against the Under is Seymour’s home run rate and the Yankees’ raw team power. A lineup that has hit 217 home runs doesn’t need many mistakes to blow past a total, and Seymour has been mistake-prone all year. His cutter has been hammered for a .662 xwOBA when he’s thrown it, and his sinker is a liability against power hitters. If Seymour gets into a rough second or third inning and the Yankees bullpen doesn’t need to be taxed, this game could go over before Cole even needs to come out.
The Rays’ bullpen situation also cuts both ways. Garrett Cleavinger, Manuel Rodriguez, and Tyler Wells are all on the IL — that’s meaningful depth gone. If Seymour labors and Tampa Bay needs to go to a compromised pen, the Yankees could pile on. The raw run environment does favor scoring.
But here’s why I still like the Under: Cole’s WHIP and walk profile are the anchor. He is built for exactly this type of game — home start, team that just clinched and may lack urgency, projection environment that overestimates scoring because it doesn’t fully weight Cole’s suppression ceiling at Yankee Stadium. The Rays aren’t going to put up four or five against Cole tonight. That means Seymour only needs to keep the Yankees to three or fewer for the Under to cash — and with Judge out and Seymour’s changeup as a genuine weapon, that’s a real possibility.
Run Environment and Game Shape
Yankee Stadium plays slightly hitter-friendly at a 1.05 park factor, but that’s a marginal adjustment. The game shape here is straightforward: Cole dominates his side, holding the Rays to two runs or fewer, and Seymour is good enough — not great, but good enough — to keep the Yankees in the three-to-four range. That combination lands under 7.0. The Under doesn’t need Seymour to be an ace. It needs Cole to be Cole, which he has been, and it needs Seymour to avoid one catastrophic crooked-number inning.
For the Over to cash, you need both starters to leak runs early, the bullpens to get exposed, and Judge’s absence to be irrelevant because the Yankees’ depth provides enough power anyway. That’s a lot of conditions stacking up. The Under only needs Cole — and Cole, pitching at home with a 1.10 WHIP and 22 walks in 121.1 innings, is about as reliable an anchor as you’ll find anywhere on the board tonight.
Tampa Bay’s bullpen injuries (Cleavinger, Rodriguez, Wells all on the IL) are a legitimate wild card. If Seymour exits early and the Rays have to go deep into a shorthanded pen, things can get messy. But that scenario also requires the Yankees to sustain a big inning, which Cole’s presence on the mound makes less likely to trigger a reciprocal blowup from the Tampa side. The game shape points low, not high.
Bet: Under 7.0 — 2 units, moderate confidence
