| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
â–¶Mets | +1.5 59%59% | O 1 53%51% | 23%22% | 23% Kalshi |
â–¶Braves | -1.5 41%41% | U 1 47%49% | 36%35% | 36% Kalshi |
Atlanta is the 60c home favorite for the series finale at Truist Park, with Kalshi and Polymarket priced level to the cent at 60c and New York at 41.5c (42c Kalshi, 41c Polymarket). The Braves (72-48, 40-21 at home) traded at 55c on August 11 and 59c on August 10, so 60c is the series high, and the Mets (53-68) have now been the underdog five games running. Tyler Mahle (3-9, 4.83 ERA) faces Zac Thornton (3-2, 2.52 ERA) with the set tied 1-1.
Atlanta enters the finale of a three-game set at Truist Park as the 60c home favorite, and the two books agree to the cent: Kalshi 60c, Polymarket 60c. New York sits at 41.5c (42c on Kalshi, 41c on Polymarket). The Braves are 72-48 overall and 40-21 at home, first in the NL East. The Mets are 53-68 and 28-34 on the road, fifth in the division. The series is tied 1-1 after New York won 8-5 on August 10 and Atlanta answered 4-0 on August 11.
The price arc is the story. Atlanta traded at 59c on August 10, slipped to 55c on August 11, and has since reclaimed 60c, a series high. Within today's session the Braves opened at 59c on Kalshi, crossed to 60c in the overnight hours, and have held there through the morning without a single print above 60c or below 59c. The Mets side is even quieter: 42c on Kalshi has not moved all session, while Polymarket drifted from 42c to 41c. That is a market that has settled on its read rather than one still searching for a level.
New York has now been priced as the underdog in five consecutive games, which is what a 53-68 record and a fifth-place division standing buys. The board carries roughly $39.9K in cumulative volume across both platforms, concentrated in the moneyline, the run line, and the game total.
The run line reads Atlanta -1.5 at 41c (41c on both books) and Mets -1.5 at 31c (31c on both books). The gap between the Braves moneyline at 60c and the Braves run line at 41c implies the market sees a meaningful share of Atlanta wins arriving by exactly one run, which is consistent with a 40-21 home record built on tight games. The game total sits at 52.5c for over 8.5 runs (53c Kalshi, 52c Polymarket), with over 9.5 at 42c and over 7.5 at 59.5c. First five innings over 4.5 runs prices at 55c, and the probability of a run in the first inning is 52c (53c Kalshi, 51c Polymarket).
Atlanta hands the ball to Tyler Mahle (3-9, 4.83 ERA), the weaker side of this matchup on paper. New York counters with Zac Thornton (3-2, 2.52 ERA). The market is pricing the team, not the arm: a 60c home favorite behind a 4.83 ERA starter against a 2.52 ERA opponent is a statement about lineup and bullpen depth rather than about the first five innings.
The strikeout props back that up. Mahle over 4.5 strikeouts prices at 61c and over 5.5 at 42c, with 3+ strikeouts at 89c. Thornton over 3.5 strikeouts sits at 56c, 5+ at 37c, and 7+ at 10c, a shorter leash profile than Mahle's ladder implies. Neither pitcher is priced for a deep outing.
The bats favor Atlanta. Matt Olson leads the Braves with 35 home runs and 74 RBI and prices at 67c for 1+ hits, 74c for 1+ hits plus runs plus RBIs, and 20c to go deep. Michael Harris II carries a .293 average. Ronald Acuna Jr. is 66c for 1+ hits and 74c for 1+ hits plus runs plus RBIs. For New York, Francisco Lindor prices at 63c for 1+ hits and 69c for 1+ hits plus runs plus RBIs, with Bo Bichette (60 RBI) and Carson Benge (.272) rounding out the production.
The props are also where the two books stop agreeing. Lindor to hit a home run is 14c on Kalshi and 8c on Polymarket, and Acuna to hit a home run is 18c on Kalshi and 9c on Polymarket. Those are real disagreements on low-probability outcomes, not on the game result, and they reflect thinner books on the home run ladders than on the moneyline. Polymarket also carries an after-five-innings market the Kalshi board does not: Atlanta ahead after five at 49c, New York ahead at 35c, tied at 14c.
The moneyline resolves to the team that wins the game on Wednesday, August 12, 2026, first pitch scheduled for 7:15 PM ET at Truist Park in Atlanta. Kalshi and Polymarket settle on the official final score once the game is called final, including extra innings. The run line and the game total settle on that same final score, so a rain-shortened official game settles on the runs recorded at the point of the call. See the MLB league hub for the full slate and the other games settling on the same night.
Pitching mismatch on paper: Mahle carries a 4.83 ERA and a 3-9 record against Thornton's 2.52 ERA, and the 60c Atlanta price is discounting that gap heavily.
Series-high price: Atlanta at 60c is above its 59c mark on August 10 and its 55c mark on August 11, and the line has held 60c all session on Kalshi.
Home split: the Braves are 40-21 at Truist Park, the primary support for a 60c number in a rubber game.
Underdog streak: the Mets have been priced as the underdog in five straight games and are 28-34 away from Citi Field.
Cross-platform agreement on the result, disagreement on the props: the two books are exact at 60c on the Atlanta moneyline and 41c on the Atlanta run line, while home run props diverge by up to 9c.
Total and first-inning read: over 8.5 runs at 52.5c and a first-inning run at 52c point to a market expecting early scoring against Mahle.
Both prior legs of this series have their own boards: the August 11 Mets vs Braves market that Atlanta won 4-0, and the August 10 opener that New York took 8-5. For team-level futures and season-long context, the Atlanta Braves hub and the New York Mets hub collect every active market on each club. Elsewhere in the NL East on the same night, the Phillies vs Cardinals board is the other divisional rubber game on the slate.
The moneyline resolves to the team that wins New York Mets at Atlanta Braves on Wednesday, August 12, 2026, scheduled for 7:15 PM ET at Truist Park in Atlanta. Each winning team contract pays $1 per share and the losing side settles at zero. The run line (Atlanta -1.5, Mets -1.5) and the game total (8.5 runs) settle on the official final score including extra innings, and first-five-innings markets settle on the score after five complete innings. If the game is suspended or shortened but declared official, the platforms settle on the official score at the point of the call. If the game is postponed and replayed on a later date, Kalshi and Polymarket follow their published postponement rules, which generally move settlement to the rescheduled completion or void the contracts.
As of August 12, 2026, Atlanta is the 60c favorite on both Kalshi and Polymarket and New York is 41.5c (42c Kalshi, 41c Polymarket). Atlanta has held 60c through the full session after opening at 59c.
Atlanta is favored at 60c, an implied probability of about 60%. The Braves are 72-48 overall and 40-21 at Truist Park, while the Mets are 53-68 and 28-34 on the road.
Atlanta starts Tyler Mahle (3-9, 4.83 ERA) and New York starts Zac Thornton (3-2, 2.52 ERA). Mahle over 4.5 strikeouts prices at 61c and Thornton over 3.5 strikeouts prices at 56c.
Atlanta -1.5 prices at 41c on both books and the Mets -1.5 at 31c. The game total of over 8.5 runs sits at 52.5c (53c Kalshi, 52c Polymarket), with over 9.5 runs at 42c.
It resolves when the game goes final on Wednesday, August 12, 2026, first pitch at 7:15 PM ET at Truist Park. Both platforms settle the moneyline, run line, and total on the official final score.
Watch whether Atlanta holds 60c into first pitch after reclaiming its series high from 55c on August 11, and watch the home run props, where Kalshi and Polymarket sit as much as 9c apart on Ronald Acuna Jr. and Francisco Lindor.