Tigers vs Guardians Prediction Market Odds, September 4, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
Tigers | +1.5 — | O 12.5 51% | 0% | — |
Guardians | -1.5 — | U 12.5 — | 100% | 100% Polymarket |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
Detroit Tigers | +1.5 — | O 12.5 | — | |
Cleveland Guardians | -1.5 — | U 12.5 — | 100% Polymarket |
Cleveland (70-70) hosts Detroit (64-75) in the September 4, 2026 nightcap at Progressive Field, first pitch 7:10 PM ET, with Foster Griffin (15-4, 3.21 ERA) opposite Andrew Sears (0-1, 6.75 ERA). The Guardians have won seven of nine meetings this season and sit three games behind Chicago in the AL Central. Polymarket is the only exchange pricing this game, with roughly $215 of lifetime moneyline volume. The live board above carries the current cross-platform prices on the moneyline, run line, and totals.
Cleveland enters the September 4, 2026 nightcap at 70-70 and three games behind the Chicago White Sox in the AL Central, while Detroit sits 8.5 back at 64-75 and has gone 3-9 over its last 12. The Guardians have already taken seven of the nine meetings this season, including a four-game sweep in May. Polymarket is the only exchange carrying a contract on this game and the moneyline has traded roughly $215 in lifetime volume, so the price is a thin single-book read rather than a cross-platform consensus.
Tigers vs Guardians Pitching Matchup
Cleveland hands the ball to Foster Griffin, who carries a 15-4 record and a 3.21 ERA into the start. Detroit counters with Andrew Sears at 0-1 and a 6.75 ERA, the widest starter gap in the three-game set. On season ERA alone that is a mismatch, and the market has not priced it as one, which is the central tension on the board.
The run environment cuts against the raw ERA read. Cleveland is 33-38 at Progressive Field and 37-32 on the road, so home field has been a negative for the Guardians all year. Detroit is 30-40 away from Comerica Park. Chase DeLauter leads Cleveland at a .293 average with 60 RBI and Angel Martinez leads the club with 14 home runs, a lineup profile built on contact rather than slug. Detroit brings the bigger power bat in Dillon Dingler, who has 26 home runs and 82 RBI, with Kevin McGonigle hitting .271 at the top.
What the Tigers vs Guardians Board Says
As of the evening of September 3, 2026, Polymarket has Cleveland at 56c and Detroit at 45c on the full-game moneyline, an 11c gap that implies the Guardians as roughly a 55% favorite once the book is normalized. The run line tells a different story: Cleveland -1.5 sits at 38c and Detroit -1.5 at 34c, only 4c apart. A four-point separation on the run line under an eleven-point separation on the moneyline says the market expects a close game that Cleveland wins narrowly, not a Griffin blowout. The deeper rungs agree, with Cleveland -2.5 at 28c and Detroit -2.5 at 24c.
Totals are priced low. Over 7.5 trades at 56c, over 8.5 at 49c, and over 9.5 at 39c, putting the market total right around eight runs. The first-five ladder is consistent with that, with over 3.5 at 64c, over 4.5 at 52c, and over 5.5 at 37c. A run in the first inning trades at 46c. The first-five run line is the sharpest read on the starters, with Cleveland -1.5 through five at 36c against Detroit -1.5 at 22c, a 14c gap that is wider than the full-game run line and reflects the Griffin advantage before the bullpens take over.
Snapshot history on this board is short. Between 8:12 PM and 10:07 PM ET on September 3, 2026, Cleveland's -1.5 run line ticked from 37c to 38c and the over 7.5 moved 56c to 57c and settled back at 56c. The moneyline carries a single capture inside that window, so there is no open-to-now move to report on the two-way price. Treat the board as freshly posted rather than as a line that has been pushed around.
When the Tigers vs Guardians Market Resolves
First pitch is 7:10 PM ET at Progressive Field in Cleveland, and the contracts settle once that game goes final on September 4, 2026. The moneyline pays the team that wins the full game. Run-line contracts settle against the final margin, so Cleveland -1.5 needs a two-run win. Totals settle on combined runs scored by both teams, with a half-run line removing the push. First-five markets settle on the score after five complete innings and pay on that partial-game result regardless of what follows. One scheduling note matters here: this is the second game of a split doubleheader, and the 2:10 PM ET makeup of the June 14 postponement is a separate contest that this board does not cover. If the evening game is suspended or postponed, Polymarket resolves per its published rules for shortened and rescheduled games rather than to the score at stoppage.
Key Tigers vs Guardians Catalysts
Starter gap: Foster Griffin at 3.21 ERA against Andrew Sears at 6.75 ERA is the single biggest input, and the first-five run line at 36c to 22c is where the board expresses it most cleanly.
Cleveland home split: the Guardians are 33-38 at Progressive Field and 37-32 on the road, so the venue is not the tailwind the standings imply.
Single-book pricing: with roughly $215 of lifetime moneyline volume and no Kalshi contract paired to this game, the 56c price carries less information than a two-book number would.
Season series weight: Cleveland is 7-2 against Detroit this year, and Detroit is 3-9 over its last 12 games overall.
Divisional stakes: Cleveland is three games behind Chicago in the AL Central at 70-70, so every September home game feeds directly into the AL Central race.
Related Tigers vs Guardians Markets
Cleveland's nightly result rolls straight into the season-long boards. The AL Central winner market is the one this game moves most, with the Guardians three back of the White Sox and seventeen games left. The Cleveland playoff market is the cleaner expression of the same view for anyone who wants the wild card path included, and the Detroit playoff market prices what a 64-75 record has already cost the Tigers. For the longer-dated view, the AL pennant board carries every American League contender, and the full MLB market list covers the rest of the September slate.
Resolution Criteria
Resolves on the final score of the Detroit Tigers at Cleveland Guardians game scheduled for 7:10 PM ET on September 4, 2026 at Progressive Field in Cleveland. The moneyline pays the team that wins the full game. Run-line contracts settle against the final margin, so Cleveland -1.5 requires a two-run or larger win. Totals settle on combined runs scored by both teams, and the half-run lines remove the push. First-five markets settle on the score after five complete innings independent of the final result. This is the second game of a split doubleheader; the 2:10 PM ET makeup of the June 14 postponement is a separate contest not covered by this board. If the game is suspended, shortened, or postponed, Polymarket settles per its published rules for rescheduled games rather than to the score at stoppage.
Key Factors
- Foster Griffin (15-4, 3.21 ERA) versus Andrew Sears (0-1, 6.75 ERA) is the widest starter gap in the series
- Cleveland is 33-38 at Progressive Field and 37-32 on the road, so home field has been a negative all season
- Single-book pricing: Polymarket only, roughly $215 lifetime moneyline volume, no paired Kalshi contract
- Season series: Cleveland leads Detroit 7-2, and Detroit is 3-9 over its last 12 games
- AL Central stakes: Cleveland at 70-70 sits three games behind the Chicago White Sox
- Split doubleheader: the 2:10 PM ET makeup from June 14 is a separate game with its own settlement
What are the current Tigers vs Guardians odds?
As of the evening of September 3, 2026, Polymarket prices the Cleveland Guardians at 56c and the Detroit Tigers at 45c on the full-game moneyline. Cleveland -1.5 trades at 38c and Detroit -1.5 at 34c, with the over 7.5 at 56c.
When does the Tigers vs Guardians market resolve?
It resolves when the game goes final on September 4, 2026. First pitch is 7:10 PM ET at Progressive Field in Cleveland, so settlement typically lands three to four hours later.
Where can I trade the Tigers vs Guardians market?
Polymarket is the only exchange carrying this game, with a full ladder of moneyline, run line, totals, and first-five contracts. There is no paired Kalshi contract, so lifetime moneyline volume is only about $215.
Who is favored in Tigers vs Guardians?
Cleveland is the favorite at 56c against Detroit at 45c, roughly a 55% implied chance once the book is normalized. Foster Griffin (15-4, 3.21 ERA) starting against Andrew Sears (0-1, 6.75 ERA) is the main reason.
What should I watch before Tigers vs Guardians resolves?
Watch the 2:10 PM ET makeup game from June 14 earlier the same day, since bullpen usage in that contest carries into the nightcap. Also watch the first-five run line, currently 36c on Cleveland -1.5 against 22c on Detroit -1.5, which isolates the starter matchup before the relievers take over.