Red Sox vs Yankees Prediction Market Odds, August 29, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
Sox | +1.5 — | O 7.5 — | 0% | — |
Yankees | -1.5 — | U 7.5 — | 100% | 100% Polymarket |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
Boston Red Sox | +1.5 — | O 7.5 — | 0% | — |
New York Yankees | -1.5 — | U 7.5 — | 100% | 100% Polymarket |
New York is the 55c favorite over Boston at 45c for the nightcap of the August 29, 2026 doubleheader at Yankee Stadium, and that line has not moved through 16 snapshot captures spanning the last 14 hours. The market sits roughly six points under ESPN's matchup model, which reads New York at 61.3%, while DraftKings at NYY -124 lands almost exactly where the prediction market does. Max Fried is being activated off the 15-day injured list to start for the Yankees, Boston has not named a nightcap starter, and the board is Polymarket-only with $7.8K of lifetime traded volume behind a 1c-wide book.
Boston opens the day 73-61 and New York 76-58, and the two clubs meet twice on Saturday, August 29, 2026 at Yankee Stadium. This board is the nightcap, first pitch 7:15 PM ET, and it prices New York at 55c against Boston at 45c. The season series is tied 5-5 and the Yankees took the opener of this set 1-0 on Friday, a game that is priced separately on the August 28 board. Tampa Bay leads the American League at 80-54, which puts New York four back and Boston seven back with a month to play.
Red Sox vs Yankees Market Context
The moneyline reads 55c New York and 45c Boston, a clean 100c two-sided sum with no vig baked into the pair, so the implied read is a straight 55% for the Yankees. Two independent references disagree in opposite directions. ESPN's matchup predictor puts New York at 61.3%, six points above the board. DraftKings prices the game at NYY -124, which is about 55.4% before the hold is removed and closer to 53% after, marginally below the board. When a sportsbook and a prediction market agree inside two points and a model sits six points away, the model is the outlier, not the price.
Our snapshot series makes the flatness explicit. New York held at 56c across all 16 captures between 01:22 and 14:53 UTC and reads 55c now, a one-tick drift toward Boston over 14 hours. Boston sat at 45c in every one of those same captures. This is not a market waiting on news it already has; it is a market that has not yet been given any.
The alt markets carry the same read. The Yankees run line at -1.5 trades at 36c and has held a 33c to 37c band since early morning, which implies New York wins by two or more about a third of the time. The total is set at 7.5 with the over at 53c, and DraftKings has the same 7.5 number with the over at -117, another point of agreement between the two venues. The first-inning run market prices at 47c, and the after-five-innings board reads New York 44c, Boston 36c, tied 18c.
This is a one-book board. Only Polymarket has listed the nightcap, so there is no cross-platform price to compare and no second venue to check the 55c against. Lifetime traded volume is $7.8K, with $5.2K of that on the moneyline leg and $2.3K on the 7.5 total. The traded number understates the market's actual quality: Boston shows a 44c bid against a 45c ask with roughly $73K resting on the bid side, so the quote is a real 1c-wide two-sided market rather than a thin midpoint that moves on a single order.
What the Red Sox vs Yankees Pitching Matchup Says
Max Fried is the Yankees probable for the nightcap, activated off the 15-day injured list with an elbow bruise that carried a return date of today. His line reads 4-4 with a 2.81 ERA and a 1.00 WHIP across 86 innings, with 79 strikeouts, 27 walks and just two home runs allowed. That last number matters in this ballpark. A left-hander who has surrendered two home runs all season is the single best structural argument for the 53c over being too high rather than too low.
Boston has not announced a starter for the second game. That is the largest piece of missing information on the board, and it explains why the moneyline has spent 14 hours frozen. The market is currently pricing two rosters, not two pitchers, and a Boston announcement is the first real catalyst available. Sonny Gray leads the Red Sox staff at a 2.82 ERA with 16 wins, and Payton Tolle leads the club with 141 strikeouts; if either name lands on the nightcap and the 45c does not move, that is a mispriced reaction rather than a fair one.
The afternoon game shapes the evening one. Game 1 goes at 1:05 PM ET with Carlos Rodon (4-2, 3.15 ERA, 1.21 WHIP) opposite Jake Bennett (8-6, 3.49 ERA, 1.07 WHIP), and whichever bullpen absorbs more innings there carries that cost into the 7:15 PM game. Two contests on one day is a relief-arm problem before it is a starting-pitching problem.
The lineups cut against New York more than the record does. The Yankees are without Aaron Judge (60-day injured list, fractured rib, return date September 18) and Giancarlo Stanton (60-day, calf strain, September 22), with Clarke Schmidt out through September 8 after elbow surgery and Ryan McMahon on the 10-day list with a thumb sprain. Ben Rice has carried the offense with 35 home runs and 83 RBI, and Cam Schlittler leads the rotation at a 2.09 ERA with 12 wins and 201 strikeouts. Boston is missing Trevor Story (60-day, abdomen surgery) and Roman Anthony (60-day, finger sprain), both with August 31 return dates. Willson Contreras leads Boston with 26 home runs and 78 RBI and Ceddanne Rafaela hits .287.
Form is a wash at 3-2 for each club over the last five. Boston took two of three in Miami before dropping the finale 4-0 and losing 1-0 in the Bronx on Friday. New York split four with Houston and won that 1-0 opener. The board's home run props reflect exactly that: the highest priced bat on either side sits at 8c to go deep, with Contreras and Wilyer Abreu at 8c and Rafaela at 6c, which is a market saying it expects a low-scoring evening.
When the Red Sox vs Yankees Market Resolves
The market resolves to the team that wins the second game of the August 29, 2026 doubleheader at Yankee Stadium, scheduled for 7:15 PM ET. Baseball carries no draw, so the game plays to a decision including extra innings, and the winning team's contract pays $1 per share while the loser resolves to $0. The 1:05 PM ET first game is a separate contest with a separate contract and does not settle this board. A game called official under MLB rules settles on the score at the point it is called.
Key Red Sox vs Yankees Catalysts
Boston nightcap starter: unannounced as of first pitch of Game 1, and the largest single piece of information the 45c price is still missing.
Max Fried activation: returning from a 15-day elbow bruise at 2.81 ERA, 1.00 WHIP and two home runs allowed in 86 innings, which pressures the 53c over more than it pressures Boston.
Game 1 bullpen drain: Rodon at 3.15 ERA against Bennett at 3.49 ERA in the 1:05 PM ET opener, with relief innings carrying straight into the evening.
Yankees lineup without Judge and Stanton: both on the 60-day list into late September, leaving Ben Rice at 35 home runs as the primary run producer.
Model versus market gap: ESPN reads New York at 61.3% while the board and DraftKings both land near 55%, so the disagreement is with the model, not between venues.
One-book liquidity: $7.8K lifetime traded volume but roughly $73K resting on a 1c-wide Polymarket book, so the quote is firmer than the volume line suggests.
Related Red Sox vs Yankees Markets
A doubleheader swings the season boards more than a single August game does. The AL East division market is the direct read on whether either club can close Tampa Bay's 80-54, and the American League pennant market prices the wider October path for both. Longer-dated money on New York and Boston sits on the World Series market, while Cam Schlittler's 2.09 ERA and Sonny Gray's 16 wins both feed the AL Cy Young market. For club-level context, the New York Yankees hub and the Boston Red Sox hub collect every active contract on each team, and the MLB hub carries the rest of the daily slate.
Resolution Criteria
Resolves to the team that wins the second game of the Boston Red Sox at New York Yankees doubleheader on August 29, 2026 at Yankee Stadium, scheduled for 7:15 PM ET. The winning team's contract pays $1 per share and the losing team's contract resolves to $0. Baseball carries no draw, so the game plays to a decision including extra innings. The 1:05 PM ET first game of the doubleheader is a separate contest with its own contract and does not settle this market. A game shortened by weather but ruled official under MLB rules settles on the score at the point it is called; a postponement or suspension pushes settlement to the completion of the game, and Polymarket carries an outer settlement window into early September to cover that case.
Key Factors
- Boston nightcap starter unannounced, the largest remaining price mover on the board
- Max Fried activated off the 15-day injured list at 2.81 ERA, 1.00 WHIP and two home runs allowed in 86 innings
- Game 1 bullpen usage from the 1:05 PM ET opener (Rodon 3.15 ERA against Bennett 3.49 ERA) carrying into the 7:15 PM ET nightcap
- Yankees without Aaron Judge and Giancarlo Stanton on the 60-day injured list into late September
- ESPN model at 61.3% for New York against a board and a sportsbook that both read near 55%
- One-book Polymarket liquidity: $7.8K lifetime volume against roughly $73K resting on a 1c-wide book
What are the current Red Sox vs Yankees odds?
As of August 29, 2026 the New York Yankees are 55c and the Boston Red Sox 45c on Polymarket for the 7:15 PM ET nightcap, a clean 100c two-sided pair implying 55% for New York. The line held at 56c across 16 captures overnight before ticking to 55c. Check the live board above for the current price.
Where does the Red Sox vs Yankees market trade?
The nightcap is listed on Polymarket only, with $7.8K of lifetime traded volume and roughly $73K resting behind a 44c bid and 45c ask on the Boston side. There is no Kalshi leg on this board, so there is no cross-platform price to compare.
Who is favored in Red Sox vs Yankees on August 29, 2026?
New York is favored at 55c, or 55% implied. ESPN's matchup predictor is higher at 61.3% and DraftKings has the Yankees at -124, so the sportsbook and the prediction market agree within two points while the model sits about six points above both.
When does the Red Sox vs Yankees market resolve?
It resolves when the second game of the August 29, 2026 doubleheader at Yankee Stadium goes final, with first pitch scheduled for 7:15 PM ET. The 1:05 PM ET first game is a separate contest with a separate contract and does not settle this market.
What should I watch before Red Sox vs Yankees resolves?
Boston's nightcap starter, which was still unannounced heading into Game 1, and how many relief innings each bullpen burns in the 1:05 PM ET opener. Max Fried is already confirmed for New York off the 15-day injured list at a 2.81 ERA, so the Boston announcement is the one piece of pricing information still outstanding.