The MLB best bets today focus on two late games with very different postseason stakes. Tampa Bay faces New York in the nightcap of a doubleheader at Yankee Stadium, while San Diego visits Los Angeles with the Padres tied atop the NL Wild Card race.
New users can also claim the Polymarket promo codeACTION before Tuesday's MLB games. Deposit at least $10 and eligible new traders receive a $50 trading bonus that can be used across available MLB prediction markets.
Click the module below to claim your Polymarket sign-up bonus, and trade on MLB best bets today:
MLB Best Bets Today: Rays vs. Yankees and Padres vs. Dodgers
Rays vs. Yankees
Tampa Bay enters Tuesday at 95-60 with a six-game lead over New York in the AL East. The Rays' magic number is two, but because these teams play each other, one Tampa Bay victory Tuesday clinches the division by simultaneously adding a Rays win and Yankees loss.
That makes the 1:05 p.m. opener important to how the nightcap develops. A Rays win in Game 1 ends the division race before Game 2 begins. A Yankees victory gives Tampa Bay another chance to clinch under the lights.
Drew Rasmussen is scheduled to face Max Fried in the nightcap. New York will also be without Aaron Judge, who remains on the injured list with a right calf strain.
| Contract | Polymarket Price |
|---|---|
| Rays to win | About 46¢ |
| Yankees to win | About 55¢ |
| Rays +1.5 | About 65¢ |
| Yankees -1.5 | About 36¢ |
The overall Rays vs. Yankees market has generated roughly $349,000 in trading volume, making it one of Tuesday's most active MLB boards.
Padres vs. Dodgers
San Diego enters Tuesday at 87-69 after going 9-1 over its last 10 games and winning five straight. The Padres are tied with the Cubs atop the NL Wild Card standings, with Philadelphia one game behind.
Los Angeles has already clinched the NL West, but the Dodgers still have postseason seeding to play for rather than simply coasting through the final week.
San Diego currently lists Michael King as its starter. The Dodgers had not officially named their starter as of our latest check, making the live market and final pitching announcement worth monitoring before placing a position.
| Contract | Polymarket Price |
|---|---|
| Padres to win | About 47¢ |
| Dodgers to win | About 54¢ |
| Padres -1.5 | About 38¢ |
| Dodgers +1.5 | About 63¢ |
The biggest difference from Rays vs. Yankees is liquidity. Padres vs. Dodgers has generated only a few thousand dollars in trading volume so far, meaning the price can move more easily as additional traders enter the market.
How Polymarket MLB Contracts Work
Polymarket uses event contracts instead of traditional American MLB odds.
Contracts generally trade between 1¢ and 99¢, and a winning contract settles at $1. A losing contract settles at $0. The price represents the market's approximate implied probability at that moment.
For example, buying a Rays contract at 46¢ means the market is giving Tampa Bay roughly a 46% chance to win. Spending $100 at that price would return approximately $217 if the Rays win.
A Yankees position at 55¢ costs more because New York carries the higher implied probability. A $100 position would return approximately $182 if the Yankees win.
The same idea applies to Padres-Dodgers. San Diego at 47¢ offers a larger potential return than Los Angeles at 54¢, but traders are also assigning the Padres a lower probability of winning.
Action Network's MLB Best Bets Today
Rays vs. Yankees: Rays to Win Around 46¢
- MLB best bet today: Rays to win around 46¢
Tampa Bay is the preferred side at the current Polymarket MLB odds here.
Rasmussen gives the Rays a starter capable of matching Fried in a low-scoring game, while Judge's absence removes New York's most dangerous hitter from the lineup.
The 46¢ price also gives Tampa Bay underdog value despite entering Tuesday with the better record and an opportunity to clinch the division.
Game 1 does introduce a variable. If Tampa Bay clinches in the afternoon and significantly changes its nightcap lineup, reassess the contract before entering a position.
If the core Rays lineup remains intact, 46¢ or better is the preferred entry point.
Padres vs. Dodgers: Padres to Win Around 47¢
- MLB best bet today: Padres to win around 47¢
San Diego is the second pick at the current price.
The Padres have won nine of their last 10 and remain in a tight race for Wild Card positioning. King also gives San Diego a reliable starter against a Dodgers team whose pitching plan remained unsettled earlier Tuesday.
Los Angeles still has plenty to play for with postseason seeding at stake, so this is not simply a motivation fade.
The appeal comes from the price. San Diego is trading below 50¢ despite its current form and urgency, creating a reasonable value position if the contract remains around 47¢ or lower.
The thinner trading volume makes checking the live board especially important. A pitching announcement or lineup change could move this market several cents before first pitch.
How to Claim the Polymarket Promo Code ACTION Today
The Polymarket promo code ACTION gives eligible new users a $50 trading bonus after a qualifying $10 deposit. This is one of the best prediction market promos available today.
- Click the following link to register with Polymarket promo code ACTION and create a new account.
- Complete the required identity verification.
- Enter ACTION during registration if the code does not populate automatically.
- Deposit at least $10 using a supported funding method.
- Receive the $50 trading bonus under the current welcome offer.
- Browse Tuesday's available MLB markets.
- Check the latest contract price before opening a position.
A couple of other features are worth checking out once you're on the platform. Polymarket Squads lets users join group chats, compare strategies and follow positions from other members. If you prefer faster-moving markets, the 15-minute Bitcoin up/down markets settle every 15 minutes and give traders a much shorter time horizon.
How to Watch MLB Today
| Game | Time (ET) | Where | TV |
|---|---|---|---|
| Rays at Yankees, Game 2 | 7:05 p.m. | Yankee Stadium | TBS |
| Padres at Dodgers | 10:10 p.m. | Dodger Stadium | TBS / SportsNet LA |
MLB Best Bets Today: Final Thoughts
The MLB best bets today target Tampa Bay and San Diego at underdog prices on Polymarket.
- Rays to win around 46¢ or better
- Padres to win around 47¢ or better
Tampa Bay offers value against a Judge-less Yankees lineup with Rasmussen starting the nightcap, although the result of Game 1 could change the Rays' lineup and motivation.
San Diego enters on a five-game winning streak and remains tied atop the NL Wild Card race, making a sub-50¢ contract attractive against Los Angeles if the price holds.
Eligible new users can also claim the Polymarket promo code ACTION by depositing $10 and receiving a $50 trading bonus.
Check live markets for both games before entering a position, because Tuesday's lineups, pitching news and earlier results can move contract prices before first pitch.
Polymarket Terms and Conditions
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.














































