Giants vs Mets Prediction Market Odds, September 6, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
Giants | — | — | 0%0% | — |
Mets | — | — | 100%100% | 100% Kalshi |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
San Francisco Giants | — | — | 0%0% | — |
New York Mets | — | — | 100%100% | 100% Kalshi |
The Mets are the 60c favorite on both Kalshi and Polymarket for the Giants vs Mets rubber game at Citi Field, with the Giants at 41c, as of the morning of September 6, 2026. The two books agree to the cent, so there is no cross-platform edge to work here. New York is 64-78 and took the opener 10-6, San Francisco is 59-84 and answered 9-5, and this finale is the only game left in the set. First pitch is 1:40 PM ET.
The Giants vs Mets rubber game closes a three-game set at Citi Field that has been decided by offense on both sides, New York winning the opener 10-6 on September 4 and San Francisco answering 9-5 on September 5. Neither club is playing for position: the Mets are 64-78 and the Giants are 59-84, both well outside the National League field. What makes this board readable is the pitching, a rookie-arm start for New York against a bullpen day for San Francisco, and a moneyline that has drifted in exactly one direction since Saturday night.
Giants vs Mets Market Context
New York is the consensus favorite at 60c, priced identically on Kalshi and Polymarket as of 9:45 AM ET on September 6, with San Francisco at 41c on both books. The two prices summing past 100 is the exchanges' vig, not a signal. A zero-cent cross-platform gap is unusual on a game this thin and it means the read has to come from the underlying matchup rather than from picking a venue: neither book offers a better number on either side.
The line has moved. Polymarket carried the Mets at 56c at 8:18 PM ET on September 5, 57c two hours later, and 59c by 10:38 PM. Kalshi entered the captured window at 59c just after midnight ET and printed 60c by 9:36 AM. That is a four-cent walk toward New York over roughly a thirteen-hour capture window, with the Giants sliding from 44c to 41c across the same series of snapshots. The move is small and it is the whole recorded history this board has, so it reads as overnight lineup-and-pitching information rather than a book-driven repricing.
Christian Scott starts for the Mets at 4-4 with a 3.80 ERA. San Francisco counters with Cesar Perdomo, listed by ESPN at his natural position of reliever, carrying an 0-0 record and a 2.25 ERA over a short sample. That is the structural argument behind the 60c number. A staff opener puts the Giants' bullpen on the hook for most of nine innings in a road park, and the market is charging roughly nineteen cents for that difference in workload certainty rather than for a talent gap between the two arms.
The records support the favorite more than the run-scoring does. San Francisco is 26-48 on the road against 33-36 at home, the widest split of the two clubs and the reason a 59-84 team still gets marked down further away from Oracle Park. New York is 33-40 at Citi Field, which is a losing home record, so the market is not paying for home-field dominance so much as for the road team's collapse away from home. The Giants have Rafael Devers at 35 home runs and 91 RBI plus Jung Hoo Lee hitting .280, while the Mets counter with Juan Soto at 23 home runs and Bo Bichette leading the club at 68 RBI. Two lineups that produced 30 combined runs in the first two games are not the reason this price sits at 60c.
The board itself is narrow. It carries the two-way moneyline on both platforms and a Kalshi-only run-in-the-first-inning contract at 50c that has traded no volume at all. There is no spread and no total posted here, so the moneyline is the only cross-platform expression of the game. Lifetime volume across the whole board is about $400, essentially all of it on the moneyline, and the liquidity is lopsided: the Giants leg has taken roughly $240 on Polymarket against $1 lifetime on Kalshi. Thin books move on small tickets, so treat any single print as noise until a second snapshot confirms it.
When the Giants vs Mets Market Resolves
The moneyline resolves to the team that wins the game outright on September 6, 2026, at Citi Field, with first pitch at 1:40 PM ET. Both exchanges settle from the official final score once the game is complete, including extra innings, so a lead after eight and a half innings is not a settlement event. The Kalshi run-in-the-first contract settles yes if either team scores in the top or bottom of the opening frame. A postponement moves settlement to the makeup date or voids per each platform's rules, which is live risk in September when both clubs are eliminated and have no scheduling pressure to force a doubleheader.
Key Giants vs Mets Catalysts
Bullpen day for San Francisco: Cesar Perdomo is a reliever by position, so how deep the Giants' first arm goes decides whether the 41c number was right.
Christian Scott's line: at 4-4 with a 3.80 ERA, his command in the first three innings against a lineup that scored nine on Saturday is the single biggest in-game price driver.
The overnight drift: New York moved from 56c to 60c between Saturday evening and Sunday morning, and a stall at 60c into first pitch reads differently than a continued climb.
Devers against a rookie arm: 35 home runs and 91 RBI is the Giants' only reliable source of run production on the road, where they are 26-48.
Book depth: with about $400 of lifetime volume and the Giants leg holding $1 on Kalshi, a single sized order can move the posted price without changing anything real about the game.
Related Giants vs Mets Markets
The September 5 game in this same series priced the Giants as underdogs and they won 9-5, which is the cleanest available reminder that a 41c dog is a live outcome roughly two times in five. For season-long context, the NL East market has long since moved past a 64-78 Mets club and the National League pennant board prices the contenders both of these teams will spend October watching. Every other game on the slate, plus the futures boards for all 30 clubs, sits on the MLB hub.
Resolution Criteria
Resolves to the team that wins the game outright at Citi Field on September 6, 2026, first pitch 1:40 PM ET. Kalshi settles the KXMLBGAME-26SEP061340SFNYM event and Polymarket settles its matching market from the official final score, extra innings included, with each winning team contract paying $1 per share and the losing side resolving to $0. The separate Kalshi run-in-the-first contract resolves yes if either club scores in the opening inning. If the game is suspended, postponed, or shortened, each platform applies its own makeup and void rules, which typically means settlement follows the completed makeup game or the contract voids if the game is not played.
Key Factors
- Cesar Perdomo (0-0, 2.25 ERA) is a reliever by position, so this is a Giants bullpen day and staff depth decides the back half
- Christian Scott (4-4, 3.80 ERA) faces a Giants lineup that put up nine runs in the September 5 game
- New York drifted from 56c to 60c between Saturday evening and Sunday morning across Kalshi and Polymarket snapshots
- San Francisco is 26-48 on the road against 33-36 at home, the split the 41c price is built on
- Rafael Devers (35 HR, 91 RBI) is the Giants' primary run source; Juan Soto (23 HR) and Bo Bichette (68 RBI) lead the Mets
- Board carries about $400 lifetime volume with only $1 on the Giants Kalshi leg, so posted prices move on small tickets
What are the current Giants vs Mets odds?
As of the morning of September 6, 2026, the Mets are the 60c favorite on both Kalshi and Polymarket and the Giants are 41c on both books. The two platforms are priced identically, so there is no cross-platform gap on this game.
Who is favored in Giants vs Mets on September 6?
New York, at an implied probability of about 60%. The Mets are 64-78 overall and 33-40 at Citi Field, while San Francisco is 59-84 and 26-48 on the road, which is the split doing most of the work in that number.
Where does the Giants vs Mets game trade?
Both Kalshi and Polymarket carry the two-way moneyline. Kalshi additionally lists a run-in-the-first-inning contract at 50c that has traded no volume. There is no spread or total posted on this board.
Who are the probable pitchers for Giants vs Mets?
Christian Scott starts for the Mets at 4-4 with a 3.80 ERA. San Francisco lists Cesar Perdomo, a reliever by position carrying an 0-0 record and a 2.25 ERA, which points to a bullpen day for the Giants.
When does the Giants vs Mets market resolve?
Settlement follows the official final score of the 1:40 PM ET game on September 6, 2026 at Citi Field, extra innings included. Watch how deep the Giants' opener goes and whether the Mets hold 60c into first pitch, since the price walked up four cents overnight.