| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
▶Mets | +1.5 60%60% | O 1 50%50% | 27%27% | 27% Kalshi |
▶Braves | -1.5 40%40% | U 1 50%50% | 40%40% | 40% Kalshi |
Atlanta is the 59c home favorite over New York in Monday’s series opener at Truist Park, and the two books agree to the cent: 59c on Kalshi, 59c on Polymarket, with the Mets at 42c on both. The record gap carries the price. The Braves are 71-47 and lead the NL East; the Mets are 52-67 and sit fifth, 19.5 games back. Bryce Elder (8-6, 3.69 ERA) starts for Atlanta against Christian Scott (3-3, 3.15 ERA), first pitch 7:15pm ET, with $48.7K already traded on the Atlanta moneyline across the two exchanges.
The Braves moneyline has not moved. Atlanta opened this board at 59c and has traded in a single-tick band (59c to 60c and back) across every snapshot since the market posted, with Polymarket printing the identical 59c the entire session. That is a flat line on a series opener, and it is the clearest read on the page: neither book has found a reason to reprice a first-place team at home against a club sitting 19.5 games out of the division. The live board above carries the current cross-platform quotes.
Atlanta is 71-47 overall and 39-20 at Truist Park, first in the NL East. New York is 52-67 overall and 27-33 on the road, fifth in the division. That is the gap the 59c price is describing, and it is wider than the 17c spread between the two moneyline sides suggests.
Recent form does not close it. The Braves are 6-2 over their last eight: three straight from Miami, two from Washington, then a trip to Yankee Stadium where they lost 2-3 and 4-5 before taking the finale 2-1 on Sunday. The Mets are 5-3 over the same stretch, with a 6-4 win, a 0-9 shutout loss, and an 11-1 win at Pittsburgh across the weekend.
The repricing from that weekend is the useful part. On Sunday morning Atlanta traded at 43c on Kalshi as a road underdog in the Bronx, and won 2-1. Twenty-four hours later the same roster is 59c. A 16c swing on a venue and matchup change is roughly what home field plus a favorable starter draw is worth in a two-way baseball market. New York ran the opposite path: a 44c underdog on both books at Pittsburgh on Sunday, an 11-1 win, and a 42c open on Monday. A blowout moved the Mets number down 2c, because the books are pricing the opponent, not the last box score. The Braves finale at Yankee Stadium and the Mets finale at Pittsburgh are the two boards that set up this one.
Bryce Elder (8-6, 3.69 ERA) starts for Atlanta. His strikeout ladder is priced modestly: 2+ strikeouts at 93c, 3+ at 81c, 4+ at 65c, 5+ at 46c, and 6+ down to 29c. The 50c crossing sits between four and five, so the market expects Elder to work efficiently rather than miss bats in volume.
Christian Scott (3-3, 3.15 ERA) goes for New York, and his ladder sits a full step higher: 5+ strikeouts at 64c, 6+ at 47c, 7+ at 30c, 8+ at 17c. Scott owns the better ERA by 0.54 runs and the better strikeout price, and that combination is the strongest available argument for the Mets side at 42c. The market is paying 42c for the pitcher it expects to generate more swing and miss, which is the one place this board looks generous to the road team.
The total is 8.5 and priced as close to even as anything here. Over 8.5 runs is 49.5c (50c Kalshi, 49c Polymarket), over 7.5 is 56.5c, and over 9.5 drops to 38.5c. Team totals split the same way the moneyline does: Atlanta over 3.5 runs at 63c against 53c for New York, and Atlanta over 4.5 at 47c against 41c. That is about a half-run edge to the home side, consistent with a 59c favorite rather than a bigger number.
The run line agrees. Atlanta -1.5 is 40c and Atlanta -2.5 is 30c, so the market gives Atlanta a 40% chance of winning by two or more and a 30% chance of winning by three or more. New York -1.5 is 31c. Polymarket's first-five-innings market has Atlanta ahead after five at 49c, New York at 39c, and a tie at 14c, which reads as a modest starter edge rather than a bullpen-driven price. A run in the first inning is a straight coin flip at 50c.
On the game lines, they do not. The moneyline is 59c and 42c on both venues, Atlanta -1.5 is 40c on both, New York -1.5 is 31c on both, and the 8.5 total is one cent apart. There is no game-line shopping edge on this board, which is why the pairing on both moneyline sides is flagged verified with $48.7K traded on the Atlanta side across the two exchanges.
The home run props are where the venues part. Kalshi quotes Ronald Acuna Jr. to homer at 19c while Polymarket has the same question at 11c. Matt Olson is 21c against 12c. Francisco Lindor is 17c against 9c. The gap runs 8c to 9c in the same direction on all three hitters, which points at a structural difference in how the two books quote home run props rather than three independent mispriced lines. Buyers of home run exposure are getting it materially cheaper on Polymarket; sellers are getting paid more on Kalshi. That is a venue-selection note, not an arbitrage.
The market resolves on the final score of Monday's game at Truist Park, first pitch 7:15pm ET on August 10, 2026. The moneyline settles to the winning team, the run line settles on the final margin, and the 8.5 total settles on combined runs scored by both clubs. First-five-innings markets settle at the middle of the fifth regardless of the final result. Both exchanges settle from the official MLB box score once the game is final.
Both clubs carry full season boards worth tracking against this one. The Atlanta Braves market hub aggregates their game and futures pricing, and the New York Mets market hub does the same for a team the market has repriced downward through the summer. The MLB prediction market hub carries the full league board, and today's MLB slate shows every game trading right now. For the deadline context behind both rosters, see the MLB trade deadline odds breakdown.
Resolves on the outcome of the New York Mets at Atlanta Braves game played at Truist Park on August 10, 2026, first pitch 7:15pm ET. The moneyline contract for the winning team pays $1 per share and the losing team resolves to $0. The run line settles on the final margin, so Atlanta -1.5 requires a win by two or more runs. Total markets settle on combined runs scored by both clubs, with the 8.5 line resolving over at nine runs or more. First-five-innings markets settle at the middle of the fifth inning regardless of the final score. Both Kalshi and Polymarket settle from the official MLB box score once the game is declared final. If the game is postponed and replayed on a later date, both exchanges settle on the completed rescheduled game; if it is suspended and not completed, contracts void and resolve per each platform’s cancellation rules.
As of August 10, 2026, Atlanta is 59c on both Kalshi and Polymarket and New York is 42c on both. The line has held flat since the board opened, trading in a single-tick band between 59c and 60c.
The Braves, at 59c, which implies roughly a 59% chance of winning. Atlanta is 71-47 and 39-20 at home; the Mets are 52-67 and 27-33 on the road.
Both Kalshi and Polymarket list the game, and both quote the moneyline at 59c Atlanta and 42c New York. Kalshi carries the deeper book, with $41.7K of the $48.7K traded on the Atlanta side.
The total is 8.5 runs, with over 8.5 at 49.5c (50c Kalshi, 49c Polymarket). Atlanta -1.5 is 40c and Atlanta -2.5 is 30c; New York -1.5 is 31c.
The starting pitcher props are the tell. Christian Scott is priced for more strikeouts than Bryce Elder (5+ at 64c versus 46c) despite the Mets being 17c behind on the moneyline, so any late move toward New York should show up in that ladder first.