Boston Red Sox vs Pittsburgh Pirates Prediction Market Odds, August 14, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
â–¶Sox | -1.5 44%44% | O 1 47%48% | 44%44% | 44% Kalshi |
â–¶Pirates | +1.5 56%56% | U 1 53%52% | 24%26% | 26% Polymarket |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
â–¶Boston Red Sox | -1.5 | O 1 | 44% Kalshi | |
â–¶Pittsburgh Pirates | +1.5 | U 1 | 26% Polymarket |
Boston is the 56.5c road favorite at PNC Park (57c on Kalshi, 56c on Polymarket) against Pittsburgh at 44c, and the two books agree to within a cent on both sides. The Red Sox arrive 65-56 with the third-best team ERA in MLB at 3.51 and a 36-25 road record, while the Pirates are 59-64 and exactly .500 at home at 30-30. Jake Bennett (7-5, 3.17 ERA) opposes Bubba Chandler (5-8, 4.26 ERA) in the opener of a three-game set that runs through August 16, 2026. The live board above carries roughly $17.9K across the moneyline, run line, totals and strikeout props.
A 57c line is the calmest number Boston has carried in a week. Across the four-game set in Toronto from August 10 through August 13, the Red Sox moneyline traded as a 62c favorite, then a 43c underdog, then 54c, then 61c, a 19c range in four days. The August 13 finale in Toronto closed that stretch. At PNC Park the board opens the weekend at 56.5c and the overnight snapshot series barely moved it, with Boston going 58c to 57c on Kalshi and 57c to 56c on Polymarket.
Red Sox vs Pirates Market Context
Boston enters 65-56 overall and 36-25 on the road, the more relevant of the two records at a neutral-to-hostile venue. Pittsburgh is 59-64 and 30-30 at PNC Park, which is the cleanest reason the home dog sits at 44c rather than the high 30s. The Red Sox staff carries a 3.51 team ERA, third in MLB. The Pirates staff sits at 4.35, 22nd. That gap accounts for most of the 12.5c separation on the moneyline.
The offensive read runs the other way. Pittsburgh leads MLB with 1074 hits and ranks fourth with 604 runs on a .255 team average, also fourth. Boston has scored 531 runs, 18th, on a .248 average, 11th. Brandon Lowe leads the Pirates with 25 home runs and 74 RBI, and Nick Gonzales is hitting .309. Willson Contreras leads Boston with 24 home runs and 72 RBI, and Ceddanne Rafaela is at .288. A market that reads Boston as the better run-prevention team but Pittsburgh as the better contact lineup is why the total sits at 53.5c over 7.5 instead of well under.
Cross-platform, this is a tight board. Kalshi and Polymarket are within 1c on both moneyline sides and identical at 44c on Pittsburgh. The widest disagreement anywhere on the core lines is 2c on the Pittsburgh run line, 26c on Kalshi against 28c on Polymarket. Neither book is carrying a materially different read of the game, which is the normal state for an MLB opener with two listed starters and no late scratch.
Red Sox vs Pirates Pitching Matchup
Jake Bennett (7-5, 3.17 ERA) starts for Boston against Bubba Chandler (5-8, 4.26 ERA) for Pittsburgh, per the ESPN probables. The strikeout props price the two nearly level. Chandler is 68c to reach 4 or more strikeouts and 47c for 5 or more. Bennett is 67c for 4 or more and 45c for 5 or more. Above six the ladder thins fast, with Chandler at 29c for 6 or more and Bennett at 23c. Both books are treating a five-strikeout outing as close to a coin flip for each starter, which is a start-length read as much as a stuff read.
The derivative markets say the same thing. First five innings over 4.5 runs is 48.5c, and a run in the first inning is 47.5c. On Polymarket, Boston leading after five innings is 46c against 38c for Pittsburgh and 17c for a tie, an 8c edge that is narrower than the 12.5c full-game gap. The board is pricing the late innings, not the starters, as where Boston's advantage actually lands.
Red Sox vs Pirates Run Line and Total
Boston at -1.5 is 44c, the same price as Pittsburgh simply winning the game outright. Boston winning by 3 or more is 33c. Pittsburgh at -1.5 is 27c and at -2.5 is 18c. Measured against the 56.5c moneyline, the run line implies roughly a 78% chance that a Boston win comes by two or more runs. That is a high conversion rate, and it lines up with Pittsburgh's 4.35 staff ERA and 73 errors, 23rd in MLB.
The total ladder runs 65.5c over 6.5, 53.5c over 7.5 and 45.5c over 8.5, which centers true expectation between 7.5 and 8 runs. The over case rests on Pittsburgh's league-leading 1074 hits meeting a Boston staff that has been the third-best run-prevention unit in baseball. The under case is that Boston's own offense ranks 18th in runs and has to carry half the total.
When the Red Sox vs Pirates Market Resolves
The moneyline settles the night of August 14, 2026, once the game goes final at PNC Park, with first pitch scheduled for 6:40 PM ET. Kalshi and Polymarket both settle on the official MLB result, so a Boston win pays the Red Sox contract and a Pittsburgh win pays the Pirates contract. There is no draw outcome in MLB, and extra innings count toward the run line and the total.
Key Red Sox vs Pirates Catalysts
Starting pitching: Bennett at a 3.17 ERA against Chandler at 4.26 is the largest single input to the 56.5c line, and a late scratch would reprice it immediately.
Road split: Boston is 36-25 away from Fenway while Pittsburgh is 30-30 at home, a split that argues the road favorite is priced correctly rather than short.
Contact volume: Pittsburgh's 1074 hits lead MLB and its 604 runs rank fourth, the strongest single argument for the over 7.5 at 53.5c.
Cross-platform agreement: Kalshi and Polymarket sit within 1c on the moneyline and 2c on the Pittsburgh run line, so there is no meaningful pricing disagreement to lean on here.
Defense and bullpen: Pittsburgh's 73 errors rank 23rd and its staff ERA is 22nd, which is why Boston at -1.5 holds 44c rather than the mid-30s.
Volatility reset: After a 19c swing in four days in Toronto, Boston's line has held inside a single cent overnight, which is the signal that the market considers this matchup settled pending lineups.
Related Red Sox vs Pirates Markets
Boston's full slate of game and futures markets sits on the Red Sox team hub, and Pittsburgh's equivalent board is on the Pirates team hub. For the rest of the day's cross-platform baseball pricing, the MLB hub aggregates every game and season market currently trading, and the Cardinals vs Cubs board is the other National League Central matchup on the August 14, 2026 slate.
Resolution Criteria
Resolves to the team that wins the game between the Boston Red Sox and Pittsburgh Pirates at PNC Park on August 14, 2026, with first pitch scheduled for 6:40 PM ET. Moneyline contracts pay $1 per share for the winning team and zero for the losing team, and there is no draw outcome in MLB. Run line contracts settle on the final margin of victory, and total contracts settle on combined runs scored by both teams including extra innings. First five innings markets settle on the score after the completed top and bottom of the fifth inning. If the game is suspended, called before it becomes official, or postponed to a later date, Kalshi and Polymarket each apply their own postponement rules, which generally void or roll the contract rather than settle it on a partial score.
Key Factors
- Jake Bennett (7-5, 3.17 ERA) against Bubba Chandler (5-8, 4.26 ERA) is the largest single input to the 56.5c moneyline
- Boston is 36-25 on the road while Pittsburgh is 30-30 at PNC Park
- Pittsburgh leads MLB with 1074 hits and ranks 4th with 604 runs, the core over case on the 7.5 total at 53.5c
- Boston's 3.51 team ERA ranks 3rd in MLB against Pittsburgh's 4.35, ranked 22nd
- Kalshi and Polymarket agree within 1c on the moneyline and 2c on the Pittsburgh run line
- Boston's line held 58c to 57c overnight after a 62c to 43c to 61c swing across four days in Toronto
What are the current Red Sox vs Pirates odds?
As of August 14, 2026, Boston is the 56.5c favorite (57c on Kalshi, 56c on Polymarket) and Pittsburgh is 44c on both platforms. The live board above carries the current prices.
Who is favored in Red Sox vs Pirates on August 14, 2026?
Boston is favored at a 56.5c average price, an implied probability of about 57%. Pittsburgh at 44c implies about 44%, with the roughly half-cent overlap reflecting the platforms' spread.
Where does the Red Sox vs Pirates market trade?
Both Kalshi and Polymarket list this game. The full board, covering the moneyline, run line, totals and starting pitcher strikeout props, carries roughly $17.9K in volume as of August 14, 2026.
What is the Red Sox vs Pirates run line and total?
Boston at -1.5 is 44c and at -2.5 is 33c, while Pittsburgh at -1.5 is 27c. The total ladder prices over 6.5 at 65.5c, over 7.5 at 53.5c and over 8.5 at 45.5c on August 14, 2026.
When does the Red Sox vs Pirates market resolve?
It settles once the game goes final at PNC Park on August 14, 2026, with first pitch scheduled for 6:40 PM ET. The moneyline pays the winning team's contract, and the run line and total settle on the final score including extra innings.
What should traders watch before first pitch on August 14, 2026?
Confirmed lineups and any change to the listed starters, since Bennett at 3.17 and Chandler at 4.26 carry the 12.5c moneyline gap. Also watch the strikeout ladder, where Chandler at 47c and Bennett at 45c for 5 or more are the two most matchup-sensitive prices.