| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
▶Rays | +1.5 64%64% | O 6.5 51%52% | 44%45% | 45% Polymarket |
▶Yankees | -1.5 36%36% | U 6.5 49%48% | 57%55% | 57% Kalshi |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
▶Tampa Bay Rays | +1.5 | O 6.5 | 45% Polymarket | |
▶New York Yankees | -1.5 | U 6.5 | 57% Kalshi |
The Rays vs Yankees board has New York at 59% on both Kalshi and Polymarket for Wednesday night in the Bronx, a home favorite the standings do not support: Tampa Bay is 96-61 and New York is 90-67. The moneyline drifted two to three points toward the Yankees overnight while over 6.5 runs fell from 57% to 50%, the biggest move on a board carrying $450,535 in lifetime volume across 311 lines.
The Rays vs Yankees market prices New York at 59% on both Kalshi and Polymarket as of the morning of September 23, 2026, which makes this the rare home favorite the standings do not support. Tampa Bay arrives in the Bronx at 96-61. New York sits at 90-67. The board carries $450,535 in lifetime volume across 311 tradeable lines and seven market types, and the money moved toward the Yankees overnight while the run total moved hard in the other direction.
The six game gap in the standings is not reflected in the moneyline, and the reason is the pitching matchup. Gerrit Cole is listed as the Yankees probable starter as of September 23 and Ian Seymour is listed for Tampa Bay. That is the entire case for a 59% home price against a team with the better record, and it is a defensible one: a single start is the highest variance input on any nine inning board, and the market is paying for the name on the mound rather than the 157 games behind it.
The standings context is close to settled. Tampa Bay has 96 wins with 157 games played. New York has also played 157, so on a 162 game schedule the Yankees can add at most five more wins and finish at 95, which leaves them short of the Rays total as it already stands. Whatever the Yankees are playing for in this series, catching Tampa Bay in the division is not it. That matters for how both managers treat a Wednesday night game in the last week: rest and bullpen management are live variables here in a way they would not be in July.
The movement is the most useful thing on this board. Across the snapshots captured for this game, which run from roughly 8 PM ET Tuesday to 9 AM ET Wednesday, the Yankees moneyline climbed from 57% to 59% on Kalshi and from 56% to 59% on Polymarket. Tampa Bay drifted the other way, 44% to 42% on Kalshi and 45% to 42% on Polymarket. That is a steady two to three point drift toward the home side rather than a single jump, which usually reads as position building rather than news.
The total moved further than the moneyline did. Over 6.5 runs opened the captured window at 57% on Kalshi and 56% on Polymarket and now trades at 50% and 51%, a drop of six to seven points and the largest move anywhere on this board. The full game total has been repriced to a coin flip. The first five innings total agrees: over 3.5 runs through five sits at 48.5%, and over 4.5 through five is down at 36.5%. The market is pricing a low scoring Wednesday night game in a park that usually does not deliver one.
The run line did not move at all. New York at -1.5 held 38% on Kalshi and 39% on Polymarket through the entire captured window, and Tampa Bay at -1.5 trades at 29%. Those two prices together are the cleanest statement of the market read: a game that leans New York but does not expect New York to win it comfortably. The five inning market makes the same point from another angle, with the Yankees to be ahead after five at 46%, Tampa Bay at 34%, and tied at 19%. The Yankees are a 59% favorite to win the game and a 46% favorite to lead it at the halfway mark, which is the shape of a market that expects the bullpens to decide this.
There is no cross platform edge to take. Kalshi and Polymarket are identical on both moneyline legs and within one point on every other line that carries snapshot history. When two venues agree this tightly on a board with this much volume, the honest read is that the price is the price, and the trade, if there is one, is in the total rather than the side.
The 229 player prop lines are concentrated on the Tampa Bay side of the lineup. Yandy Díaz to record at least one hit trades at 67%, Junior Caminero at 65%, and Jonathan Aranda at 58%. Caminero also carries the highest home run price of the three, at 14.5% to go deep at least once, with Aranda at 10.5% and Díaz at 8.5%. Total bases rungs run alongside them, with Caminero over 1.5 total bases at 41% and Díaz over 1.5 at 39%.
The inning level market is where the low total shows up most clearly. A run in the first inning trades at 44%, and the first inning is priced more likely to end tied, at 59%, than to be won by either club, with New York at 22% and Tampa Bay at 17%. Every individual inning on the board prices the tie between 59% and 63%. The 38 total lines, 10 spread rungs, and 27 inning props give this board more depth than a typical late September game, which is a function of the volume rather than the stakes.
The Rays vs Yankees moneyline resolves to the team that wins the game, scheduled for 7:05 PM ET on Wednesday, September 23, 2026 at Yankee Stadium, the middle game of a three game series. Spread and total contracts settle against the official final score, including extra innings. Contracts pay $1 per share on the winning side and $0 on the other. The market settles once the game is official and the platforms post the final, typically within hours of the last out. A postponement moves settlement to the completed date, and a suspended or shortened game settles per each venue's published rules for official games.
Starting pitching: Gerrit Cole and Ian Seymour are the listed probables as of September 23, and the 59% home price is almost entirely a bet on that mismatch rather than on the season records.
The total is the live trade: over 6.5 runs fell from 57% to 50% across the captured window, the biggest move on the board, and the first five innings rungs agree with the repricing.
Late September usage: Tampa Bay at 96-61 cannot be caught by New York at 90-67 on a 162 game schedule, so rest decisions and short bullpen leashes are real variables on both sides.
No cross platform gap: Kalshi and Polymarket are identical on the moneyline and within one point everywhere else, so there is no venue arbitrage to work on this board.
Bullpen leverage: New York is 59% to win the game but only 46% to lead after five innings, which puts the outcome on the relievers more than on the starters the price is built around.
Both clubs have season long boards still trading. The AL East division market is the direct context for Tampa Bay's 96-61 record, and the Yankees season wins market is the one New York's last five games still move. For team level pages, the Tampa Bay Rays hub and the New York Yankees hub collect every live board for each club. The full slate of cross platform baseball prices sits on the MLB hub, and every game trading today is on today's MLB board.
Resolves to the team that wins the game, scheduled for 7:05 PM ET on Wednesday, September 23, 2026 at Yankee Stadium, the second game of a three game series. Moneyline contracts pay $1 per share on the winning club and $0 on the losing club. Spread contracts, including the New York and Tampa Bay run lines at -1.5, -2.5, and -3.5, and total contracts from over 1.5 through over 8.5 runs settle against the official final score with extra innings included. First five inning markets settle on the score after five completed innings. The market settles once the game is official and Kalshi and Polymarket post the final. A postponement moves settlement to the date the game is completed, and a suspended or shortened game settles under each platform published rules for what counts as an official game.
As of the morning of September 23, 2026, the New York Yankees trade at 59% on both Kalshi and Polymarket and the Tampa Bay Rays at 42% on both venues. The live board above carries the current prices.
It resolves on the result of the game, first pitch 7:05 PM ET on Wednesday, September 23, 2026 at Yankee Stadium. Settlement follows once the game is official and both platforms post the final score.
Both Kalshi and Polymarket list this game, and the board spans 311 lines across moneyline, spread, total, first five innings, inning props, and 229 player prop rungs, with $450,535 in lifetime volume.
New York is the 59% favorite despite a worse record, 90-67 against Tampa Bay at 96-61. The listed probable starters as of September 23, Gerrit Cole for the Yankees and Ian Seymour for the Rays, are the reason the market ignores the standings.
Watch the total. Over 6.5 runs dropped from 57% to 50% between Tuesday evening and Wednesday morning, the only line on the board that moved more than three points, and a confirmed lineup card or a late scratch to either listed starter would move it again.