Yankees vs Orioles Prediction Market Odds, August 19, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
▶Yankees | — | O 1 52% | 54%53% | 54% Kalshi |
▶Orioles | — | U 1 48% | 47%48% | 48% Polymarket |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
▶New York Yankees | — | O 1 | 54% Kalshi | |
▶Baltimore Orioles | — | U 1 | 48% Polymarket |
No player props available for this game.
No spread lines available.
New York is the 53.5c favorite at Camden Yards (54c on Kalshi, 53c on Polymarket) with Baltimore at 47.5c (47c Kalshi, 48c Polymarket), a near coin flip between a 70-55 club and a 61-65 club. The compression comes from the starters: Will Warren (8-6, 4.42) against Chris Bassitt (4-4, 5.11), not from the standings, where the Yankees own the best staff ERA in baseball at 3.26. Both books agree within 1c on each side and the Kalshi line has held at 54c since Tuesday night.
The Yankees walk into Camden Yards 15 games over .500 with the best staff ERA in baseball and come out of the pricing model as close to a coin flip. New York is the 53.5c side (54c on Kalshi, 53c on Polymarket) against Baltimore at 47.5c (47c Kalshi, 48c Polymarket), which is how the board reads a 70-55 club against a 61-65 club. The compression is a starting-pitching story rather than a standings story, and this is the second game of a series New York opened with a 3-1 win on Tuesday.
Yankees vs Orioles Market Context
New York is 70-55 overall and 39-28 on the road, a .582 travel rate that is better than Baltimore's .508 mark at home (32-31). The Orioles sit 61-65 and 14.5 games behind Tampa Bay (75-50) in the AL East; the Yankees are 5 back of the same team and are playing for seeding rather than survival. Nothing in either record supports a near-even moneyline, which is exactly why the 53.5c number is the interesting part of this board.
The season splits explain the compression. Baltimore has scored 569 runs (12th in MLB) and hits .238 as a team (24th). New York has scored 551 runs (19th) and hits .229 (29th), so the Orioles have out-produced the Yankees at the plate across 126 games. The separation in the standings comes from run prevention: a 3.26 team ERA that ranks first in baseball against Baltimore's 4.24 (19th). A market that prices the offenses close and the starters close lands where this one landed.
Both books agree. The Kalshi legs sum to 101c and the Polymarket legs sum to 101c, so roughly 1c of vig sits on each side, and the platform-to-platform disagreement is 1c on the Yankees and 1c on the Orioles. That is inside the noise band on a game board and there is no cross-platform read to make here. What is worth knowing is who set the price: Kalshi carries about $1.7K of lifetime volume on the Yankees leg and $470 on the Orioles leg, while each Polymarket leg has traded roughly $24 in its life. Kalshi is the price discovery on this game, and the $3.5K board total is thin by design for a Wednesday in August.
The line has not moved. Kalshi printed 54c on the Yankees and 47c on the Orioles on every snapshot taken between roughly 8:20 p.m. and 10:00 p.m. ET on Tuesday night, with no drift in either direction as the opener finished. A held line into game day means the starters were priced when they were announced and nothing since has changed the read.
Yankees vs Orioles Pitching Matchup
Will Warren (8-6, 4.42) takes the ball for New York against Chris Bassitt (4-4, 5.11) for Baltimore. Warren owns the better ERA by 0.69 runs and the better record by four wins, and he is the reason the Yankees hold the board at all rather than trading closer to their record. Bassitt's 5.11 is the highest ERA in the matchup and the single number keeping a sub-.500 home team at 47.5c instead of the low 40s.
The bullpens are closer than the rotations. New York has converted 35 saves (tied 8th) behind that league-leading 3.26 staff ERA, Baltimore 33 (tied 14th). Baltimore has also committed 81 errors (tied 27th) against New York's 66 (17th), which matters more than usual in a game where both starters are giving up better than four runs per nine.
Kalshi's first-inning market is the cleanest connection between the pitching read and a tradeable number. "Run in 1st inning?" trades at 52c with about $1.3K in lifetime volume, the second-heaviest line on this board behind the Yankees moneyline. Two starters at 4.42 and 5.11 with the two most productive innings of each lineup coming up first is a defensible 52c, and it is the only alternate market posted here. No run line and no game total have been listed on either platform for this game, so the moneyline and the first inning are the board.
When the Yankees vs Orioles Market Resolves
The market resolves on the final score of the game at Oriole Park at Camden Yards on Wednesday, August 19, 2026, with first pitch scheduled for 6:35 p.m. ET. The winning team's contract pays $1 per share and the losing team's contract goes to zero; there is no draw outcome in baseball, so extra innings simply extend the market. Kalshi lists the pair under its KXMLBGAME series and Polymarket lists the same two outcomes on its MLB event page. The first-inning contract settles yes if either team scores in the top or bottom of the first.
Key Yankees vs Orioles Catalysts
- Starter gap: Warren (8-6, 4.42) against Bassitt (4-4, 5.11) is the reason a 70-55 team is only 53.5c against a 61-65 team.
- Run prevention against run production: New York's 3.26 team ERA leads MLB while its .229 average ranks 29th, and Baltimore has scored 18 more runs on the season.
- Home split: Baltimore is 32-31 at Camden Yards, a weaker rate than the Yankees' 39-28 road record, so home field is not carrying the Orioles' half of this price.
- First-inning market: Kalshi's 52c "Run in 1st inning?" line is the only alternate market on the board and the direct expression of the two starters' ERAs.
- Thin two-book board: Kalshi holds roughly $2.2K of the $3.5K lifetime volume across both moneyline legs while each Polymarket leg has traded about $24, so Kalshi moves first when news lands.
- Seeding stakes: New York is 5 games behind Tampa Bay in the AL East and Baltimore is 14.5 back, which shapes late-inning bullpen usage on both sides.
Related Yankees vs Orioles Markets
The series opener is still live at Yankees vs Orioles on August 18, where New York won 3-1 to take the first game. The season-long versions of this matchup trade on the AL East division market and the AL pennant market, both of which have Tampa Bay's 75-50 record as the reference point. For the two clubs' October paths, see the Yankees playoff market and the Orioles playoff market. Full team boards live at the New York Yankees hub and the Baltimore Orioles hub, and every game on the slate is on the MLB hub.
Resolution Criteria
Resolves to the team that wins the game at Oriole Park at Camden Yards on Wednesday, August 19, 2026, with first pitch scheduled for 6:35 p.m. ET. The winning team's contract pays $1 per share and the other resolves to zero, with no draw outcome available in baseball and extra innings simply extending the market. Kalshi settles the pair under its KXMLBGAME series and Polymarket settles the same two outcomes on its MLB event page, both off the official final score. Kalshi's separate first-inning contract settles yes if either team scores in the first inning. If the game is postponed or suspended, each platform applies its own rescheduling and void rules, which generally carry the market to the completed makeup game or refund it if the game is never completed.
Key Factors
- Will Warren (8-6, 4.42) vs Chris Bassitt (5.11 ERA) is the matchup compressing a 9-game record gap to 53.5c
- Yankees lead MLB with a 3.26 team ERA while ranking 29th in batting average at .229
- Baltimore has scored 569 runs (12th) to New York's 551 (19th) despite a 61-65 record
- Camden Yards home split: Orioles 32-31 at home vs Yankees 39-28 on the road
- Kalshi's 52c first-inning run market is the only alternate line on the board
- Kalshi carries roughly $2.2K of the $3.5K board volume, so it prices news first
What are the current Yankees vs Orioles odds?
As of the evening of August 18, 2026, New York is 54c on Kalshi and 53c on Polymarket for a 53.5c cross-platform average, with Baltimore at 47c on Kalshi and 48c on Polymarket. The live board above carries the current prices.
Who is favored in Yankees vs Orioles on August 19, 2026?
The Yankees are favored at a 53.5c average, an implied probability of roughly 53%. That is a slim edge for a team that is 70-55 against a 61-65 Baltimore club, and it reflects the Warren-Bassitt starting pitching matchup.
Who is pitching in Yankees vs Orioles?
Will Warren (8-6, 4.42 ERA) starts for New York and Chris Bassitt (4-4, 5.11 ERA) starts for Baltimore. Warren pitches in front of the best team ERA in MLB at 3.26; Baltimore's staff sits at 4.24, 19th in the league.
Where can I trade the Yankees vs Orioles market?
Both outcomes trade on Kalshi under the KXMLBGAME series and on Polymarket's MLB event page for this game. Kalshi holds the large majority of the roughly $3.5K in lifetime board volume, including a separate first-inning run market at 52c.
When does the Yankees vs Orioles market resolve?
It settles on the final score of the game at Oriole Park at Camden Yards on Wednesday, August 19, 2026, first pitch 6:35 p.m. ET. Winning contracts pay $1 per share; a postponement pushes settlement to the completed makeup game under each platform's rules.
What should I watch before Yankees vs Orioles resolves?
Watch the Kalshi moneyline, which has printed 54c on New York without moving since Tuesday night, and any late lineup or bullpen news out of Baltimore, where 81 errors (tied 27th in MLB) have cost the Orioles more than most clubs in one-run games.