Casey Mize’s 2.27 ERA and elite split-finger profile squares off against a Guardians offense that just lost Jose Ramirez to a broken hamate bone — and the total is still sitting at 7.0, priced as though both rosters are intact. The under at -104 is nearly a coin flip on the board, but the lineup math has shifted since that number was posted.
Casey Mize vs. Gavin Williams: Under 7 Has Real Edge in Guardians-Tigers Rubber Game
Yesterday’s under cashed cleanly in this series — a 3-1 final that never threatened the number — and today the market is asking me to do it again at nearly the same price against two pitchers who’ve been suppressing runs all season. The question isn’t whether the starters are good enough. The question is whether a 7.0 total already has that baked in, and whether there’s still enough edge left to act.
Casey Mize vs Gavin Williams: Detroit Tigers at Cleveland Guardians Betting Preview
Progressive Field is hosting the rubber game of a three-game set that has already produced a pair of low-scoring finishes — 3-2 and 3-1 — and the pitching environment today is, if anything, better than either of the first two games. Casey Mize and Gavin Williams are two of the more underrated starters in the American League, and they’re squaring off in a park that plays just under neutral at a 0.98 run factor. The market has set the total at exactly 7.0, with the under juiced at -104 — nearly a coin flip — which tells you the books are respecting the pitching but aren’t fully convinced the offenses are as bad as they look.
Both lineups carry sub-.710 OPS profiles — Detroit at .705, Cleveland at .689 — and Cleveland’s lineup just absorbed a significant blow with Jose Ramirez going down Saturday with a broken hamate bone. Chase DeLauter and Angel Martinez are also day-to-day. Strip the best hitter from an already modest offense and the run-scoring ceiling drops further. That context matters at a total of 7, where even one fewer run of expected production tips the scale toward the under.
The thesis is straightforward: elite pitching on both sides, depleted offenses, a slightly suppressive park, and a price that still offers marginal value. This is a moderate play, not a hammer — the edge is real but thin.
Game Info & Betting Lines
- Date/Time: Sunday, June 14, 2026 | 1:40 PM ET
- Venue: Progressive Field | Park Factor: 0.98 (neutral-to-suppressive)
- Probable Starters: Casey Mize (DET) vs. Gavin Williams (CLE)
- Moneyline: Detroit Tigers -106 / Cleveland Guardians -110
- Run Line: Cleveland Guardians +1.5 (-194) / Detroit Tigers -1.5 (+160)
- Total: 7 (Over -118 / Under -104)
Why This Number Is Close
A total of 7.0 on a Sunday afternoon game with two quality starters and two weak offenses looks like the books did their homework. And largely, they did. The over is juiced at -118, meaning the market is leaning very slightly toward more runs — probably accounting for the fact that both pitchers have some vulnerability, the game is played in daylight, and early-season park effects can be unpredictable.
The legitimate case for the over rests on the raw numbers projecting 8.2 combined runs. That’s a full 1.2 runs above the posted total — not a rounding error. Williams has allowed 13 home runs in 86.2 innings, a 1.35 HR/9 rate that’s a real number against a Detroit lineup that’s hit 76 HR on the season. Dingler (16 HR) is a genuine power threat, and Greene (.840 OPS) and Carpenter (.805 OPS) give Detroit legitimate middle-of-the-order pop. One swing changes the math.
Where I think the market is slightly wrong is in how it weights Mize’s profile. His 2.27 ERA over 47.2 innings with only 2 HR allowed is the kind of suppression profile that doesn’t fully register in a projection built on league-average contact rates. Cleveland’s gutted lineup — without Ramirez, potentially without DeLauter and Martinez — is generating fewer expected runs than the numbers reflect. The under at -104 represents acceptable value when the pitching gap and lineup context align this cleanly.
What Separates the Pitching
These two starters are not equals, but they’re closer than the records suggest, and both create the same type of game: low-contact, pitcher-controlled innings with minimal crooked numbers.
Casey Mize operates with a five-pitch mix anchored by a 33.7% four-seam fastball at 93.4 mph, but the pitch that defines his profile is his split-finger: 25.6% usage, 87.5 mph, and a staggering 32.4% whiff rate with an xwOBA against of just .207. That’s an elite put-away pitch. His slider adds another layer at 30.0% whiff and a .254 xwOBA. The Guardians’ top of the order doesn’t match up favorably — Steven Kwan is a contact hitter (.270 xwOBA) who doesn’t barrel the ball (0.5% barrel rate), and Daniel Schneemann carries a 27.8% whiff rate and a modest .390 xwOBA against right-handers. Mize’s split-finger should chew through that profile efficiently. He’s allowed only 2 HR all season, and his WHIP of 0.965 confirms he’s not giving Cleveland base runners to work with.
Gavin Williams is the bigger arm — 96.4 mph four-seam, 96.1 mph sinker — but his trump card is his sweeper, which generates a 45.6% whiff rate at 87.0 mph with a .248 xwOBA against. That’s a legitimate swing-and-miss weapon that explains how he’s posting 10.28 K/9 over 86.2 innings at a 9-3 record. The concern is that his four-seam (.375 xwOBA against) and sinker (.383 xwOBA against) can get hit when hitters time up his velocity. Dillon Dingler’s .469 xwOBA this season with a 29.8% hard-hit rate is a genuine mismatch concern, and Riley Greene (.455 xwOBA, .479 xwOBA vs right-handers) has 19 plate appearances against Williams with 7 strikeouts but has made contact count in the past. The gap between these two arms favors Mize slightly — his contact suppression profile is cleaner.
The Pushback
The projection sitting at 8.2 combined runs is the loudest counter-argument, and I don’t dismiss it. That gap — 8.2 projected versus 7.0 posted — is the market telling you there’s over value baked into the number. Williams’ HR rate is real. Detroit’s power upside is real. Afternoon baseball at Progressive Field with two lineups that have shown flashes of big-inning capability isn’t a guaranteed low-scoring environment just because the starters are good.
The BvP data on Dingler — 0-for-9 with 4 strikeouts against Williams — is a small-sample signal that could cut either way. Nine plate appearances doesn’t tell you Dingler can’t hurt Williams; it tells you he hasn’t yet. I wouldn’t lean hard on that number in isolation. The Ramirez injury is the more durable edge here: losing your best hitter and two outfielders in the span of two innings isn’t a footnote, it’s a structural change to Cleveland’s run-scoring capacity for this game and the foreseeable future.
The Pick
This rubber game comes down to the same equation that defined the first two: can the pitching hold, or does one big inning blow it up? Two starts ago, the answer was yes. Yesterday, the answer was yes again. Today, with Mize’s elite contact suppression profile going against a Cleveland lineup that just lost its anchor, and Williams’ sweeper-driven approach neutralizing Detroit’s lineup enough to keep the total honest, the under at -104 is the right side.
The specific lineup depletion Cleveland is experiencing right now isn’t fully priced into a 7.0 total that was likely set before the Ramirez injury became official. The numbers project more runs than the total suggests, but those projections are built on full rosters. Strip Ramirez, add uncertainty around DeLauter and Martinez, and Cleveland’s offense looks more like a 3-run unit than a 4-run unit. Combine that with Mize’s historically clean HR rate and the sweeper Williams can lean on to generate whiffs through Detroit’s middle third of the order, and you have two legitimate reasons the final stays south of 7. The series has already given us back-to-back unders. The pitching environment today is better than either of those games. This is the same bet, same logic, same price — and I’m taking it.
Bet: Under 7.0 (-104) | 2 Units | Moderate Confidence
