Padres vs Mets Prediction Market Odds, August 19, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
▶Padres | — | O 1 50% | 55%55% | 55% Kalshi |
▶Mets | — | U 1 50% | 46%46% | 46% Kalshi |
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San Diego is a 55c favorite on both Kalshi and Polymarket against New York at 46c, the widest the Padres have priced in this three-game set at Citi Field. The books agree to the cent, so there is no cross-platform entry to pick between on the moneyline. The pitching gap is the reason for the move: San Diego starts Michael King (8-8, 3.41 ERA, 124 strikeouts) while the Mets list reliever Robert Stock (0-2, 6.57 ERA, 1.86 WHIP) as the probable starter. The Padres are 67-59, the Mets 57-69.
San Diego closes the series at Citi Field as a 55c favorite on both Kalshi and Polymarket, the widest price the Padres have carried across the three-game set. The Padres (67-59) hand the ball to Michael King, who leads the staff in both ERA (3.41) and strikeouts (124). The Mets (57-69) list Robert Stock as the probable starter, a relief pitcher carrying a 6.57 ERA and a 1.86 WHIP over 12.1 innings, which is a bullpen game under another name. First pitch is 1:10 PM ET on Wednesday, August 19, 2026.
Padres vs Mets Market Context
The Padres vs Mets board holds roughly $12.1K in lifetime volume across Kalshi and Polymarket, and the two books agree to the cent. San Diego prints 55c on Kalshi and 55c on Polymarket, New York prints 46c on both, and the 101c sum on the Kalshi pair is the exchange fee structure rather than a pricing disagreement. There is no cross-platform gap to work on the moneyline here, which is unusual for an MLB board and a signal that both order books are reading the same inputs.
The heaviest line on this board is not the moneyline. Kalshi's run-in-the-first market has traded about $7.0K lifetime against $4.7K on the San Diego moneyline leg and $1.3K on the New York leg, so the derivative is carrying more interest than the game result. Polymarket lists the same first-inning question at 51c against Kalshi's 49c, a 2c gap on a leg with about $40 of lifetime volume on the Polymarket side, so read that as a liquidity artifact rather than a disagreement about the first inning.
The overnight tape has been flat. San Diego opened the session at 55c on Kalshi and printed 55c on every snapshot since, and the New York leg held 46c through the same window. The only line with any drift at all is the first-inning market, where Kalshi moved 49c to 50c and Polymarket moved 50c to 51c, leaving a run in the first priced as a coin flip at a 50c average.
Padres vs Mets Records, Form, and the Series Stake
San Diego is 67-59 overall and 30-33 on the road, second in the NL West. That road split is the number that keeps a 10-game record gap from buying more than 55c: the Padres are a .532 club overall and a sub-.500 club away from Petco Park, and this is the third game of a road set. They went 3-2 across their previous five before this series, splitting a four-game run against Cleveland.
New York is 57-69 and 29-34 at home, fifth in the NL East. The record is poor and the form entering the series was not. The Mets had won five in a row through the August 17 opener, sweeping three from Washington and then beating San Diego 2-1 to take the first game of this set. The lineup is compromised. Juan Soto, the team home run leader at 21, is on the 10-day injured list, and Mark Vientos is out as well, which leaves Bo Bichette (63 RBI) and Carson Benge (.273) carrying the middle of the order. The bullpen is short too, with Devin Williams and Cionel Perez both on the 15-day injured list, and a bullpen game is exactly the wrong day for that.
San Diego is not healthy either. Joe Musgrove, Nick Pivetta, Lucas Giolito, and Jason Adam are all on the injured list, which is why a King start carries this much weight for a team chasing a playoff spot. The San Diego Padres hub tracks every board tied to that push.
King vs Stock: The Padres vs Mets Pitching Matchup
Michael King is 8-8 with a 3.41 ERA and 124 strikeouts, and he is the only pitcher on either side of this game with a full-season starter's profile. He leads San Diego in ERA and strikeouts, and in a rotation missing three arms he is the piece the Padres can still count on turning a lineup over three times.
Robert Stock is 0-2 with a 6.57 ERA, a 1.86 WHIP, 15 hits and 8 walks allowed in 12.1 innings, and 13 strikeouts. ESPN lists his position as relief pitcher, so the Mets are opening with a bullpen arm and expecting to cover the middle innings from a pen already down two names. Nolan McLean, New York's best arm at a 3.34 ERA with 162 strikeouts and 9 wins, is not part of this game.
That asymmetry is the argument for the Padres side, and 55c is a modest way to price it. A 55c contract implies a 55% chance of a San Diego win, which credits the Padres with barely more than a coin flip despite the healthy front-line starter, the 10-game record edge, and Manny Machado (23 home runs, 70 RBI) and Fernando Tatis Jr. (.279) against an opener. The counterweight is real and it is why the price is not higher: a bullpen game scrambles the platoon math for a road lineup, the Mets have already won a game in this series with a one-run margin, and King's own record sits at .500 despite the ERA.
When the Padres vs Mets Market Resolves
The market resolves when the game goes final at Citi Field on Wednesday, August 19, 2026, with first pitch scheduled for 1:10 PM ET. The moneyline pays the team that wins the game and extra innings count toward that result. Kalshi's run-in-the-first market settles as soon as the top and bottom of the first inning are complete, independent of the final score. If the game is postponed, each platform settles on the completed contest per its own rules rather than voiding on the calendar date.
Key Padres vs Mets Catalysts
Michael King's workload: San Diego is down three rotation arms, so how deep King goes decides whether the Padres bullpen is exposed in a one-run game.
The Mets opener plan: Robert Stock has thrown 12.1 innings all season with a 1.86 WHIP, and New York's pen is missing Devin Williams and Cionel Perez.
Juan Soto's absence: New York's 21-homer leader is on the 10-day injured list, and the 46c price already reflects a lineup without him.
Zero cross-platform spread: Kalshi and Polymarket both print 55c on San Diego and 46c on New York, so neither book offers a better entry on this moneyline.
The first-inning market: Kalshi's run-in-the-first line at 49c is the most-traded leg on the board at about $7.0K lifetime, and it settles before the game does.
Related Padres vs Mets Markets
Game two of this series trades on the August 18 Padres vs Mets board, which priced the same matchup as a pick'em. The season-long stakes sit on the NL West winner market and the Padres playoff market, where San Diego's 67-59 record is the input, and on the Mets playoff market for a 57-69 club running out of runway. The NL pennant market prices the far end of both paths, and every board for the day is listed on the MLB hub.
Resolution Criteria
This market resolves on the outcome of the San Diego Padres at New York Mets game at Citi Field on Wednesday, August 19, 2026, first pitch scheduled for 1:10 PM ET. The moneyline contract for the winning team pays $1 per share and the losing team's contract resolves to $0, with extra innings counting toward the result. Kalshi's run-in-the-first-inning market resolves Yes if either team scores in the first inning and settles once the bottom of the first is complete, independent of the final score. If the game is suspended or postponed, both platforms settle on the completed contest under their own rules rather than voiding on the scheduled calendar date.
Key Factors
- Michael King workload with San Diego down Musgrove, Pivetta, and Giolito, exposing the Padres bullpen if he exits early
- New York opening with reliever Robert Stock (12.1 innings, 1.86 WHIP) behind a pen missing Devin Williams and Cionel Perez
- Juan Soto on the 10-day injured list, removing the Mets 21-homer leader from a lineup already without Mark Vientos
- Kalshi and Polymarket both printing 55c San Diego and 46c New York, leaving no cross-platform entry difference
- Kalshi run-in-the-first market at 49c, the most-traded leg on the board at about $7.0K lifetime volume
- San Diego 30-33 on the road against New York 29-34 at home, the split that caps a 10-game record gap at 55c
What are the current Padres vs Mets odds?
As of August 19, 2026, San Diego is 55c on both Kalshi and Polymarket and New York is 46c on both, a 55c cross-platform average on the Padres. The two books agree to the cent on this moneyline.
When does the Padres vs Mets market resolve?
It resolves when the game goes final at Citi Field on Wednesday, August 19, 2026. First pitch is scheduled for 1:10 PM ET and the moneyline pays the winning team, extra innings included.
Where can I trade the Padres vs Mets market?
Kalshi and Polymarket both carry the moneyline for each team plus a run-in-the-first-inning market. The board holds roughly $12.1K in lifetime volume, with about $7.0K of it on the Kalshi first-inning leg.
Who is favored in Padres vs Mets?
San Diego, at 55c, an implied 55% chance of a Padres win against 46c on New York. The Padres carry a 67-59 record into the finale against a 57-69 Mets team that is 29-34 at home.
What should I watch before the Padres vs Mets market resolves?
How long Michael King (3.41 ERA) works, since San Diego is down three rotation arms, and how early New York goes to a bullpen missing Devin Williams and Cionel Perez behind opener Robert Stock. The Kalshi first-inning line at 49c settles before the game does.