| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
▶Marlins | +1.5 63%68% | O 8.5 47%47% | 46%46% | 46% Kalshi |
▶Brewers | -1.5 37%32% | U 8.5 53%53% | 55%55% | 55% Kalshi |
The Milwaukee Brewers are the 55.5c moneyline favorite (55c Kalshi, 56c Polymarket) at home against the Miami Marlins (45.5c) on July 19, 2026, a price built on Milwaukee's 61-37 record and 31-18 home mark rather than the pitching card. Miami right-hander Eury Perez (5-7, 3.78 ERA) is the sharper starter on paper against Brewers lefty Robert Gasser (2-4, 5.24 ERA), the tension that keeps the underdog in the mid-40s. The board carries roughly $26K in cross-platform volume across two books; the live board above ranks the current moneyline, run line, and total prices.
Milwaukee opens this Sunday matchup at American Family Field as a modest home favorite, and the pricing tells you why the game is not a lock. The Brewers own the best record in the series at 61-37, but they are handing the ball to Robert Gasser (2-4, 5.24 ERA), while the Marlins counter with one of their steadier arms in Eury Perez (5-7, 3.78 ERA). That split between team strength and starting pitching is the whole story of a 55.5c to 45.5c board.
Milwaukee sits at 55.5c on the moneyline, 55c on Kalshi and 56c on Polymarket, which implies about a 56% win probability. Miami is the 45.5c underdog (46c Kalshi, 45c Polymarket), roughly 46%. The two books are within 1c of each other on the favorite, so there is no cross-platform arbitrage on this game, unlike spots where Kalshi and Polymarket diverge by 3c or more. The records back the favorite: Milwaukee is 31-18 at home this season, while Miami is just 21-27 on the road, a split that supports the Brewers being chalk even with the weaker probable starter.
The run line is where the pricing gets specific. Milwaukee laying 1.5 runs trades at 37c, meaning the market gives the Brewers only about a 37% chance of winning by two or more. That is the read of a game expected to stay close, consistent with a one-run-favorite moneyline. The game total sits at 8.5 runs and trades near 48c to the over across both books, a slight lean under, which fits a matchup where Perez (3.78 ERA) is expected to keep Milwaukee's bats in check even if Gasser (5.24 ERA) is more hittable.
The pitching mismatch on ERA is the factor most likely to move this line before first pitch. Perez has a 3.78 ERA and gives Miami a legitimate edge in the starting matchup, while Gasser's 5.24 ERA is the reason the Brewers are only a 55.5c favorite rather than something closer to 60c despite the strong home record. Lineup-wise, Miami leans on Otto Lopez (.335 batting average) at the top, with Liam Hicks (58 RBI) driving in runs, while Milwaukee's production runs through Brice Turang (60 RBI), Jake Bauers (18 home runs), and Garrett Mitchell (.283). The Milwaukee Brewers hub and the Miami Marlins hub track how each club's season markets have priced these rosters.
The moneyline has held. Milwaukee opened the session at 55c on Kalshi and has stayed at 55c into the current read, with Miami ticking narrowly between 45c and 46c. On Polymarket the Brewers drifted a single cent from 54c to 55c on the underlying, so there has been no meaningful directional move on either book. A flat line into game day signals the market is comfortable with Milwaukee as a slim home favorite, and it leaves the pitching matchup as the main catalyst still to be priced.
The market resolves when the game goes final at American Family Field on July 19, 2026. The moneyline pays the team that wins, the run line settles on the final margin, and the total settles on combined runs scored against the 8.5-run line. Contracts pay out once the official score is confirmed on both platforms.
Robert Gasser (2-4, 5.24 ERA) starting for Milwaukee is the reason the favorite is capped at 55.5c despite a 61-37 record.
Eury Perez (5-7, 3.78 ERA) gives Miami the better starter on ERA even as the Marlins sit at 45.5c on the moneyline.
Milwaukee's 31-18 home record versus Miami's 21-27 road mark underpins the Brewers as chalk.
The Brewers -1.5 run line at 37c is the value read if Milwaukee wins by multiple runs.
The 8.5-run total trading near 48c to the over leans slightly under, tracking the Perez matchup.
Kalshi and Polymarket sit within 1c on the moneyline, so there is no cross-platform edge on this game.
For more on how these clubs are priced across their schedule, see the Milwaukee Brewers and Miami Marlins team pages, or browse the full MLB market board for every game and season future trading on Kalshi and Polymarket.
The Marlins vs Brewers moneyline resolves to the team that wins the game at American Family Field on July 19, 2026. The run line settles on the final margin, meaning Milwaukee must win by 2 or more runs for the Brewers -1.5 contract to pay, and the total settles on combined runs scored against the 8.5-run line. Each contract pays $1 per share on the correct outcome and $0 otherwise. Kalshi and Polymarket settle on the official final score once the game is complete. If the game is postponed past the scheduled date, suspended, or shortened, each platform applies its own postponement and settlement rules.
As of July 19, 2026, Milwaukee is the moneyline favorite at 55.5c (55c Kalshi, 56c Polymarket), implying about a 56% win probability. Miami sits at 45.5c, roughly 46%.
The Brewers, at 55.5c on July 19, 2026. Milwaukee's 61-37 record and 31-18 home mark drive the price, even though Marlins starter Eury Perez (3.78 ERA) outranks Robert Gasser (5.24 ERA).
Both Kalshi and Polymarket list the game. On July 19, 2026 the two books are within 1c on the moneyline (55c versus 56c on Milwaukee), so neither offers a meaningful pricing edge.
Milwaukee is laying 1.5 runs at 37c, and the game total sits at 8.5 runs trading near 48c to the over as of July 19, 2026.
It settles when the game goes final at American Family Field on July 19, 2026. The moneyline pays the winner, and the run line and total settle on the final score.
The pitching matchup is the swing factor. If Perez (3.78 ERA) outduels Gasser (5.24 ERA), the Marlins underdog price at 45.5c has room to move before first pitch on July 19, 2026.