| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
â–¶Marlins | -1.5 41%41% | O 1 51%51% | 31%31% | 31% Kalshi |
â–¶Mets | +1.5 59%59% | U 1 49%49% | 23%23% | 23% Kalshi |
Miami is the 52c road favorite in the series finale at Citi Field, and Kalshi and Polymarket agree to the cent on both sides of the moneyline. The Marlins are 57-55 and lead this four-game set 2-1 after 5-2 and 6-2 wins, while the Mets are 47-65 and 19.5 games back in the National League East. Sandy Alcantara (11-6, 3.82 ERA) starts for Miami against an unannounced New York starter, which is the main reason a 23-32 road team is priced ahead of the home club. The moneyline has not moved a cent across the snapshot series, and the live board above carries the current prices.
Miami arrives at Citi Field 57-55 and 9.5 games back in the National League East, New York sits at 47-65 and 19.5 back, and the moneyline still has the road team in front at 52c. The Marlins took the middle two games of this four-game set 5-2 on July 31 and 6-2 on August 1 and lead the series 2-1 after dropping the opener. Sandy Alcantara (11-6, 3.82 ERA) draws the finale for Miami. New York has no probable starter listed in the ESPN feed, and that asymmetry is doing most of the work in a price that puts a 23-32 road club ahead of the home team.
The records cut against the price in one direction and for it in another. Miami is 34-23 at home but only 23-32 on the road, so the 52c number is a bet on the starting pitcher rather than on travel form. New York is 25-33 at Citi Field, has lost the last two games of this series by a combined 11-4, and is 2-3 over its last five. Miami is 4-1 over its last five and has won four of six.
Alcantara is the anchor of the Miami price. He is 11-6 with a 3.82 ERA, tied for seventh in the majors in wins and 36th in ERA on the ESPN leaderboard, and he is the highest-leverage arm either club has run out in this series. The team-total ladder reflects the edge without overstating it: Miami over 3.5 runs prices at 60c against New York over 3.5 runs at 58c, and Miami over 4.5 runs sits at 49c against New York over 4.5 runs at 45c. That is a 4c gap at the higher rung, not a rout.
Availability tilts the same way. New York is without Juan Soto (10-day injured list) and Clay Holmes (60-day), plus Dedniel Nunez and Justin Hagenman on the 60-day list and Cionel Perez on the 15-day, thinning both the order and the bullpen. Miami is missing Max Meyer and Anthony Bender, both on the 15-day list, with Michael Petersen day-to-day. The offensive leaderboards favor Miami across the board: Otto Lopez is hitting .322 with Heriberto Hernandez at 16 home runs and Liam Hicks at 62 RBI, against Carson Benge at .266, Marcus Semien at 12 home runs, and Bo Bichette at 53 RBI for New York.
One dissent worth naming: the ESPN Matchup Predictor has New York at 53.1% and Miami at 46.9%, the opposite of the board. The model leans on season-long team strength and home field. The market is pricing the announced arm. Traders who trust the model over the pitcher have New York at 49c as their entry, and the Mets team page tracks how that read has performed across the rest of the schedule.
The runline says close, not comfortable. Miami at -1.5 prices at 40c on both Kalshi and Polymarket, and New York at -1.5 prices at 33c on both books. The 7c gap in multi-run-win probability is wider than the 3c moneyline gap, which is the market saying that if Miami wins it is more likely to win by two or more than New York is. Miami at -2.5 drops to 30.5c and New York at -2.5 to 24c.
The total is set at 8.5 runs with the over at 53c on both books, a near-perfect coin flip on run environment. The ladder above it falls off quickly: over 9.5 runs is 42.5c and over 10.5 is 35.5c. Below the line, over 7.5 is 61c and over 6.5 is 72c. Through five innings the shape repeats, with over 4.5 runs at 53.5c and over 5.5 at 41.5c. A run in the first inning prices at 50.5c, the flattest number on the entire board.
Line movement on the moneyline has been the absence of movement. The Marlins side printed 52c on Kalshi in every snapshot of the current series and 52c on Polymarket across seven consecutive snapshots. The New York side held 49c on Kalshi over the same window. Not one cent changed hands in either direction on the two-way winner market, which is unusual for a game that started the day as close to even money as this one.
The action went into the run-scoring ladder instead, and that is where the books split. Kalshi and Polymarket both opened over 2.5 runs in the first five innings at 76c. Kalshi bid it up to 80c. Polymarket sold it down to 74c. The result is a 6c cross-platform gap on the same contract, with a matching 6c split on over 6.5 runs through five (Kalshi 36c, Polymarket 30c). Over buyers get the better fill on Polymarket; under buyers get it on Kalshi. Kalshi also moved over 6.5 runs through five from 31c to 36c while the full-game over 8.5 ticked the other way, from 54c to 53c, so the overnight flow bought early scoring and sold late scoring.
Depth is lopsided. Kalshi carries roughly four times Polymarket's volume on the Marlins moneyline row, which makes Kalshi the price-setter and Polymarket the follower on this board. That matters for the cross-platform gaps above: when the two books disagree by 6c on a first-five total, the thinner book is the one more likely to be wrong. Other NL East pricing sits on the MLB league hub.
The game is scheduled for 1:40 PM ET on August 2, 2026 at Citi Field in Queens, the fourth and final game of the set. The moneyline resolves to the winner of the game, the runline contracts resolve on the final margin, and the totals resolve on combined runs. First-five-innings contracts settle on the score after the fifth inning is complete rather than at the final out, so those can settle well before the moneyline does. Both platforms typically post settlement within a few hours of the final out.
Starting pitching asymmetry: Sandy Alcantara (11-6, 3.82 ERA) is announced for Miami while New York has no listed probable, the single largest input into the 52c price.
Road-record contradiction: Miami is 23-32 away from home yet priced as the favorite at Citi Field, a spot where the record and the market disagree.
New York availability: Juan Soto on the 10-day injured list and Clay Holmes on the 60-day list remove the Mets' highest-leverage bat and a late-inning arm.
Cross-platform first-five split: Kalshi and Polymarket opened over 2.5 runs through five at the same 76c and are now 6c apart at 80c and 74c.
A frozen moneyline: 52c Miami and 49c New York held in every snapshot of the series, so any pre-game move is new information rather than drift.
Model disagreement: the ESPN Matchup Predictor gives New York 53.1% against a market that has Miami at 52c, a gap of roughly five points of implied probability.
The third game of this series priced and settled on the same board structure: see Marlins vs Mets on August 1 for how the market handled Miami's 6-2 win. Team-level pricing across the rest of the schedule lives on the Miami Marlins hub, and the full slate of Sunday games is on today's MLB board. Two other games on the August 2 card carry comparable cross-platform depth: Phillies vs Orioles and Red Sox vs Dodgers. Broader league and futures pricing sits under sports.
The moneyline resolves to the team that wins the game at Citi Field on August 2, 2026, first pitch scheduled for 1:40 PM ET. Each side pays $1 per share if that team wins and $0 if it loses; Major League Baseball has no draw outcome, so exactly one of the two contracts settles at $1. The runline contracts (Miami Marlins -1.5 and New York Mets -1.5) settle on the final margin of victory, and the total contracts settle on combined runs scored by both teams, with first-five-innings markets settling on the score once the fifth inning is complete rather than at the final out. Kalshi lists the game under ticker KXMLBGAME-26AUG021340MIANYM and Polymarket under its MIA-NYM event for the same date. If the game is postponed and replayed later, both platforms settle on the rescheduled completion under their published MLB rules; if the game is suspended and called early, the official Major League Baseball final score governs. Settlement typically posts within a few hours of the final out.
As of August 2, 2026, Miami is the 52c moneyline favorite on both Kalshi and Polymarket, with New York at 49c on both books. Stripping the 1c of combined vig, that implies roughly a 51% chance the Marlins win the series finale at Citi Field.
Miami is favored at 52c despite being the road team and carrying a 23-32 road record. The price is anchored on Sandy Alcantara (11-6, 3.82 ERA) starting against an unannounced New York pitcher, with the Mets at 47-65 overall and 25-33 at home.
Kalshi lists it under ticker KXMLBGAME-26AUG021340MIANYM and Polymarket lists it as its MIA-NYM event for August 2, 2026. Kalshi carries roughly four times Polymarket's volume on the Marlins moneyline row, making it the deeper book on this game.
Miami at -1.5 prices at 40c on both books and New York at -1.5 at 33c. The total is 8.5 runs with the over at 53c on both Kalshi and Polymarket as of August 2, 2026, stepping down to 42.5c at 9.5 runs.
First pitch is 1:40 PM ET on August 2, 2026 at Citi Field. The moneyline, runline, and total settle once the game is final, typically within a few hours, while first-five-innings contracts settle as soon as the fifth inning is complete.
The New York probable starter, unlisted as of August 2, 2026, is the largest single repricing catalyst on this board. Also watch the 6c Kalshi-Polymarket split on over 2.5 runs in the first five innings, which opened at a shared 76c on both books.