| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
Twins | -5.5 β | O 2.5 β | 0%0% | β |
Padres | +5.5 β | U 2.5 β | 100%100% | 100% Kalshi |


| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
Minnesota Twins | -5.5 β | O 2.5 β | 0%0% | β |
San Diego Padres | +5.5 β | U 2.5 β | 100%100% | 100% Kalshi |
San Diego is the 60c favorite over Minnesota for the middle game of this three-game set at Petco Park, first pitch 8:40 PM ET on August 22, 2026. Kalshi has the Padres at 61c and Polymarket at 60c, a one-cent gap that leaves both books reading the game the same way, and it lines up with the sportsbook price of SD -164. The pitching gap is the reason: Casey Mize (5-7, 3.18 ERA) starts for a 69-60 San Diego club that is 38-26 at home, against Dean Kremer (2-4, 5.40 ERA) and a Minnesota team that is 63-66 overall and 28-35 on the road. San Diego took the opener 6-2 and leads the series 1-0.
San Diego enters at 69-60, sixth in the National League and 11 games back of Milwaukee, with a 38-26 record at Petco Park that is the single strongest argument in the favorite's price. Minnesota is 63-66, seventh in the American League and 13.5 games out, and the road split is where the season has gone wrong at 28-35. The board carries about $49.1K in lifetime cross-platform volume across Kalshi and Polymarket, and the Padres have held the 60c to 61c range on the moneyline since the market opened on the night of the series opener.
The moneyline is the cleanest read on the board. Kalshi prices San Diego at 61c and Minnesota at 41c, Polymarket prices San Diego at 60c and Minnesota at 40c, and a one-cent spread between two books on the same question means there is no disagreement worth trading around. The implied probability lands near 60%, which is what a home team with a 3.18 ERA starter against a 5.40 ERA starter should carry when the two clubs are separated by six games in the standings and not by talent tiers.
Line movement backs that stability up. Kalshi's San Diego contract has 88 price captures between roughly 8:40 PM ET on August 21 and 7:00 AM ET on August 22, and every one of them sits at either 60c or 61c. Polymarket ticked San Diego from 61c down to 60c across its 14 captures in the same window. That is a market that opened at its number and stayed there, which is what usually happens when both probable starters are confirmed early and there is no late lineup news to price.
Form cuts toward the favorite without settling anything. San Diego is 7-3 over its last 10, including a sweep of Milwaukee and the 6-2 win over Minnesota in Friday's opener. Minnesota is 5-5 in the same stretch, outscored 23-7 across three losses to Philadelphia and then sweeping Atlanta. A team capable of both extremes inside two weeks is why the 40c side is priced here rather than lower.
The season-long markets frame the stakes. San Diego trades at 64c to reach the postseason (67c on Kalshi, 61c on Polymarket) while Minnesota sits at 29c on the Twins playoff market, a price that treats this series as spoiler baseball rather than a race.
Casey Mize takes the ball for San Diego at 5-7 with a 3.18 ERA, a record that undersells the season considerably. His strikeout props price him as a mid-volume arm rather than a bat-misser: 4+ strikeouts sits at 72c, 5+ at 54c, and 6+ drops to 35c, so the board's central expectation is a five-strikeout outing over a normal starter's workload. That profile fits Petco Park, where contact against a 3.18 ERA arm tends to stay in the yard.
Dean Kremer answers for Minnesota at 2-4 with a 5.40 ERA, and the props are priced around a shorter, earlier hook. Kremer is 84c for 3+ strikeouts, 66c for 4+, and 48c for 5+, all a tick below Mize at the same thresholds. The gap between a 3.18 ERA and a 5.40 ERA is the largest single input in the 60c moneyline, and it is why the run-line and total markets are shaped the way they are rather than a coin flip.
On the position-player side, Fernando Tatis Jr. is 75c for 1+ hits and 81c for 1+ hits plus runs plus RBIs, Manny Machado and Jackson Merrill sit at 65c and 64c for 1+ hits, and Byron Buxton is the highest-priced Minnesota bat at 65c. The home-run market is where the separation shows up: Buxton at 23c is the most expensive single-homer contract on the board, ahead of Tatis at 17c and Merrill at 13c.
The total is the market that has actually moved. Over 7.5 runs opened at 55c on Kalshi and has firmed to 57c, with Polymarket at 56c, while Over 8.5 has held at 48c on Kalshi and 49c on Polymarket. Pricing the 8.5 line at essentially a coin flip puts the market's expected run total right at 8.5, which matches the sportsbook number of 8 and reflects a Petco Park run environment that suppresses more than it inflates.
The run line is the natural derivative of the moneyline. San Diego at -1.5 trades at 42c on Kalshi and 41c on Polymarket, Minnesota at -1.5 sits at 30c, and San Diego at -2.5 drops to 31c. A 60c moneyline converting to a 42c run line means the market expects a multi-run margin roughly 70% of the time San Diego wins, a normal conversion for a home favorite in this band.
The first-five-innings markets express the starter mismatch most directly: Polymarket has San Diego leading after five at 51c, Minnesota at 36c, and a tie at 17c. Kalshi's run-in-the-first-inning contract, at $21.4K the highest-volume single line on this board, has drifted from 46c to 48c with Polymarket at 47c.
The moneyline resolves to the team that wins the game at Petco Park on August 22, 2026, with first pitch scheduled for 8:40 PM ET. Kalshi settles the KXMLBGAME contract on the official final score, and Polymarket settles its matching market the same way. Spread contracts settle on the final margin, run totals settle on combined runs scored, and the first-five-innings markets settle on the score at the conclusion of the top and bottom of the fifth. A suspended or postponed game settles under each platform's published rules for the rescheduled completion date rather than voiding automatically.
Starter gap: Casey Mize at a 3.18 ERA against Dean Kremer at 5.40 is the largest single input in the 60c San Diego price.
Home split: San Diego is 38-26 at Petco Park while Minnesota is 28-35 on the road, a 17-game swing in the two records the moneyline actually cares about.
Total drift: Over 7.5 runs has firmed from 55c to 57c on Kalshi while Over 8.5 has held at 48c, so the scoring expectation is edging up without crossing the 8.5 line.
Cross-platform agreement: Kalshi at 61c and Polymarket at 60c on San Diego leaves a one-cent gap, so neither book is offering a materially better number on the favorite.
Series position: San Diego won the opener 6-2 and can take the series with a win here before the 4:10 PM ET finale on August 23.
Buxton dependence: Byron Buxton is the only Minnesota bat priced above 60c for a hit and the only Twin above 20c for a home run, so the 40c side leans heavily on one hitter.
The standings context lives on the season-long boards: San Diego trades at 64c on the Padres playoff market and carries a separate season win total, while the 2026 World Series winner market prices the Padres against the full field at nearly $97M in cumulative volume. For team-level boards and the rest of each club's schedule, see the San Diego Padres hub and the Minnesota Twins hub, or browse every game and futures market on the MLB page.
The moneyline resolves to the team that wins the game at Petco Park in San Diego on August 22, 2026, scheduled for 8:40 PM ET. Kalshi settles the KXMLBGAME-26AUG222040MINSD contract at $1 per share for the winning team and $0 for the loser, based on the official MLB final score, and Polymarket settles its matching market on the same result. Spread contracts settle on the final margin of victory, full-game run totals settle on combined runs scored by both teams, and first-five-innings markets settle on the score after the completion of the fifth inning. If the game is postponed or suspended, each platform settles under its published rules for the rescheduled completion rather than voiding the contract outright.
As of August 22, 2026, San Diego is the favorite at 61c on Kalshi and 60c on Polymarket, with Minnesota at 41c on Kalshi and 40c on Polymarket. That implies roughly a 60% chance of a Padres win.
San Diego is favored at an average of 60c, an implied probability near 60%. The sportsbook price of SD -164 matches the prediction market read, driven by the Padres being 38-26 at Petco Park against a Twins club that is 28-35 on the road.
Both Kalshi and Polymarket list this game. Kalshi runs the KXMLBGAME-26AUG222040MINSD series plus spreads, run totals, and strikeout props, while Polymarket carries the moneyline and first-five-innings markets. The board holds about $49.1K in lifetime cross-platform volume.
It resolves after the game at Petco Park on August 22, 2026, first pitch 8:40 PM ET. Both platforms settle on the official MLB final score, usually within hours of the last out.
Over 8.5 runs trades at 48c on Kalshi and 49c on Polymarket, putting the expected total right at 8.5, and Over 7.5 has firmed to 57c. On the run line, San Diego at -1.5 sits at 42c on Kalshi and 41c on Polymarket.
Watch the total, which has moved more than the moneyline: Over 7.5 climbed from 55c to 57c on Kalshi overnight while the San Diego moneyline held in a one-cent band. Late lineup news on Byron Buxton, the only Twins bat priced above 60c for a hit, is the other input that would move the 40c side.