The Polymarket promo code (ACTION) is perfect to use on World Series Game 4 in Tampa, and this Brewers vs. Rays prediction rounds up our home run predictions today.
- Milwaukee leads the series 3-0 after a 10-1 rout in Game 3 that featured a World Series record eight runs with two outs in a single inning, and the Brewers sit one win from their first title.
- Tampa Bay trails 0-3 and faces elimination at Tropicana Field, where Griffin Jax takes the ball for a Rays offense that scored one run over its last 17 innings.
Here is the full table of our best MLB player props today, pulled from the home run board at one of the best prediction markets.
| ⚾ WS Game 4 Prediction | 🏷️ Position | Price | 🤑 Est. Return on $100 | 📈 Trade It |
|---|---|---|---|
| Junior Caminero (TB) 1+ HR | Yes | 18¢ | $555.56 | Trade it on Polymarket! |
| Jackson Chourio (MIL) 1+ HR | Yes | 17¢ | $588.24 | Trade it on Polymarket! |
| William Contreras (MIL) 1+ HR | Yes | 14¢ | $714.29 | Trade it on Polymarket! |
| Jake Bauers (MIL) 1+ HR | Yes | 14¢ | $714.29 | Trade it on Polymarket! |
| Christian Yelich (MIL) 1+ HR | Yes | 12¢ | $833.33 | Trade it on Polymarket! |
| Yandy Díaz (TB) 1+ HR | Yes | 9¢ | $1,111.11 | Trade it on Polymarket! |
Read our dedicated Polymarket review to learn more, or check out more prediction market promo codes for other platforms.
Brewers vs Rays Prediction: Best Home Run Bets Today on Polymarket
Every pick below is a real trade we'd make on one of the best prediction market apps, built around the MLB World Series and our best home run bets today for MIL vs TB.
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Best Home Run Prop Today – Junior Caminero
| ⚾ WS Game 4 Prediction | 🏷️ Position | Price | 🤑 Est. Return on $100 | 📈 Trade It Now |
|---|---|---|---|
| Junior Caminero 1+ HR | Yes | 18¢ | $555.56 | Trade it now on Polymarket! |
Caminero is the one Rays bat who turns a lopsided series into a live home run ticket. He hit 42 home runs this season with a .524 slugging percentage, nearly double the next-best total in the Tampa Bay lineup.
The Rays scored one run over their last 17 innings, and they need a spark in an elimination game. Caminero's early at-bats against a Brewers starter Milwaukee had not named yet carry the most value on the Tampa Bay side.
On the ticket itself, a $100 buy at a 18¢ average price gets roughly 556 shares, each worth $1 if the contract resolves Yes.
- If Caminero homers: this ticket returns an estimated $555.56.
- If he doesn't: the full $100 stake is lost, since Polymarket contracts settle all-or-nothing.
That return is about 5.6 times your stake, and it's the shortest price on the board.
Best Home Run Bets Today – Jackson Chourio
| ⚾ WS Game 4 Prediction | 🏷️ Position | Price | 🤑 Est. Return on $100 | 📈 Trade It Now |
|---|---|---|---|
| Jackson Chourio 1+ HR | Yes | 17¢ | $588.24 | Trade it now on Polymarket! |
Chourio drives the Brewers offense, and he arrives hot. He went 8-for-14 in the first three games of the World Series, including four hits through five innings of Game 3, one shy of the single-game World Series record.
He also hit 25 home runs with a .487 slugging percentage this season, so the 17% price reflects real power and not just a hot streak. As the leadoff man, he collects more plate appearances than any other Milwaukee bat.
On the ticket itself, a $100 buy at a 17¢ average price gets roughly 588 shares, each worth $1 if the contract resolves Yes.
- If Chourio homers: this ticket returns an estimated $588.24.
- If he doesn't: the full $100 stake is lost, since Polymarket contracts settle all-or-nothing.
That return is nearly 5.9 times your stake on the top bat in the Milwaukee lineup.
Best Home Run Prop Today – William Contreras
| ⚾ WS Game 4 Prediction | 🏷️ Position | Price | 🤑 Est. Return on $100 | 📈 Trade It Now |
|---|---|---|---|
| William Contreras 1+ HR | Yes | 14¢ | $714.29 | Trade it now on Polymarket! |
Contreras owns a .419/.490/.651 slash line this postseason, and he anchors the middle of the Brewers order. He drove in a run with a single in Game 3 and continues to square up pitches.
He hit 18 home runs this season and became the first catcher since 1993 to throw out three runners in the first three games of a World Series. A hitter playing at that level deserves a look at 14%.
On the ticket itself, a $100 buy at a 14¢ average price gets roughly 714 shares, each worth $1 if the contract resolves Yes.
- If Contreras homers: this ticket returns an estimated $714.29.
- If he doesn't: the full $100 stake is lost, since Polymarket contracts settle all-or-nothing.
That return works out to about 7.1 times your stake on a catcher who is dominating both sides of the ball.
Best Home Run Bets Today – Jake Bauers
| ⚾ WS Game 4 Prediction | 🏷️ Position | Price | 🤑 Est. Return on $100 | 📈 Trade It Now |
|---|---|---|---|
| Jake Bauers 1+ HR | Yes | 14¢ | $714.29 | Trade it now on Polymarket! |
Bauers hit a team-high 26 home runs among the Brewers hitters, along with a .389 on-base percentage and a .484 slugging percentage.
He bats second, right behind Chourio, so Griffin Jax has to navigate him in the opening inning. Jax struck out half of the eight Yankees he faced in his last regular-season start, but the Cleveland start in the ALCS showed he can give up damage.
On the ticket itself, a $100 buy at a 14¢ average price gets roughly 714 shares, each worth $1 if the contract resolves Yes.
- If Bauers homers: this ticket returns an estimated $714.29.
- If he doesn't: the full $100 stake is lost, since Polymarket contracts settle all-or-nothing.
That return works out to about 7.1 times your stake, and it pairs Bauers with the same price as Contreras.
Best Home Run Prop Today – Christian Yelich
| ⚾ WS Game 4 Prediction | 🏷️ Position | Price | 🤑 Est. Return on $100 | 📈 Trade It Now |
|---|---|---|---|
| Christian Yelich 1+ HR | Yes | 12¢ | $833.33 | Trade it now on Polymarket! |
Yelich supplies the veteran at-bats in the middle of the Brewers' order. He drove in a run with a single in Game 3 and made the aggressive baserunning play that kept the fifth inning alive for the historic eight-run rally.
His 12 home runs and .378 slugging percentage sit below the other Milwaukee bats on this board, so the 12% price fits a lower power profile. The payout climbs because of that gap.
On the ticket itself, a $100 buy at a 12¢ average price gets roughly 833 shares, each worth $1 if the contract resolves Yes.
- If Yelich homers: this ticket returns an estimated $833.33.
- If he doesn't: the full $100 stake is lost, since Polymarket contracts settle all-or-nothing.
That return is about 8.3 times your stake on a captain with a knack for big moments.
Best Home Run Bets Today – Yandy Díaz
| ⚾ WS Game 4 Prediction | 🏷️ Position | Price | 🤑 Est. Return on $100 | 📈 Trade It Now |
|---|---|---|---|
| Yandy Díaz 1+ HR | Yes | 9¢ | $1,111.11 | Trade it now on Polymarket! |
Díaz sets the table for the Rays, hitting 22 home runs with a .446 slugging percentage this season. He collected an RBI double in the ninth inning of Game 3, the lone Tampa Bay run in the 10-1 loss.
At 9%, this ticket carries the longest price among our six picks. It suits a trader who wants maximum leverage on one swing from a Rays lineup that needs a big night.
On the ticket itself, a $100 buy at a 9¢ average price gets roughly 1,111 shares, each worth $1 if the contract resolves Yes.
- If Díaz homers: this ticket returns an estimated $1,111.11.
- If he doesn't: the full $100 stake is lost, since Polymarket contracts settle all-or-nothing.
That return is more than 11 times your stake, the biggest multiple among our six picks.
Home Run Predictions Today: Full MIL vs TB Board
Here is every home run market on the board, sorted from the shortest price to the longest. Each Yes contract cashes if that player hits one or more home runs in Game 4.
- Junior Caminero (Home Runs 1+: Yes 18%): Caminero's 42 home runs and .524 slugging percentage make him the top power threat in either lineup.
- Jackson Chourio (Home Runs 1+: Yes 17%): The Brewers leadoff man hit 25 home runs this season and went 8-for-14 in the first three World Series games.
- William Contreras (Home Runs 1+: Yes 14%): Contreras hit 18 home runs this season and carries a .651 slugging percentage this postseason.
- Jake Bauers (Home Runs 1+: Yes 14%): Bauers leads this Milwaukee lineup with 26 home runs and a .484 slugging percentage.
- Christian Yelich (Home Runs 1+: Yes 12%): Yelich hit 12 home runs with a .378 slugging percentage, a lower power profile than the names above him.
- Yandy Díaz (Home Runs 1+: Yes 9%): Díaz hit 22 home runs and owns a .446 slugging percentage at the top of the Rays' order.
- Garrett Mitchell (MIL) (Home Runs 1+: Yes 9%): Mitchell hit 11 home runs and bats sixth, right behind the heart of the Brewers' order.
- Brice Turang (MIL) (Home Runs 1+: Yes 8%): Turang hit 21 home runs with a .450 slugging percentage, more power than his 8% price suggests.
- Jonathan Aranda (TB) (Home Runs 1+: Yes 8%): Aranda hit 22 home runs, and his four hits lead the Rays through the first three games.
- Jonny DeLuca (TB) (Home Runs 1+: Yes 6%): DeLuca hit 11 home runs and bats seventh in the Rays lineup.
- Chandler Simpson (TB) (Home Runs 1+: Yes 3%): Simpson hit .306 with zero home runs this season, which explains the lowest price on the board.
What's Moving the Market
Prediction markets price every home run prediction today on lineup spot, pitching matchup, and recent form, and this board reflects a series that tilts heavily toward Milwaukee.
Caminero leads at 18% even though his team trails 0-3, because his 42 home runs dwarf every other bat in the Rays lineup. Chourio follows at 17% after his four-hit performance in Game 3, and Griffin Jax carries a 1.88 ERA over his last six outings into the start.
The Brewers keep winning without leaning on the long ball. They scored 10 runs in Game 3 without a home run, the first double-digit game without one in a World Series since 2014, which helps explain why Milwaukee bats sit just below Caminero. Milwaukee had not named a Game 4 starter at the time of writing, and Dustin May headlines the options.
Consensus sportsbook odds list Milwaukee as a -135 moneyline favorite with a 7.5-run total. Compare every line, prop, and injury update on the full Brewers vs. Rays odds page for MIL vs. TB.
How to Trade Home Run Predictions Today on Polymarket
Ready to get in on this board? Here's exactly how to claim the bonus and start trading:
- Read a comprehensive Polymarket review to understand how this exchange operates.
- Follow this guide to trading on Polymarket to learn how to buy your first "Yes" or "No" contract.
- Monitor the relevant tab on Polymarket to stay ahead of the live order book movements.
- When you're ready, sign up with Polymarket promo code ACTION to get started!
📝 POLYMARKET TERMS & 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.
Final Thoughts: Best MLB Player Props Today
Milwaukee sits one win from a championship, and the home run board mirrors that tilt with four Brewers bats priced between 12% and 17%. Caminero stands alone as the Rays' top power threat, and Díaz offers the longest shot among our six picks.
That wraps our Brewers vs. Rays prediction and all our home run predictions today on the Polymarket board for Game 4. Start with the shorter prices on Caminero and Chourio, then add Contreras, Bauers, Yelich, or Díaz for a bigger multiple.
For more on how these markets work, browse the full prediction markets hub, which covers every other sport in season right now.
Brewers vs Rays Prediction FAQs
What is the Polymarket promo code for today's MLB home run props?
The current Polymarket promo code is ACTION. Create an account, make a qualifying $10 deposit, and enter code ACTION to unlock a $25 trading bonus for today's World Series markets.
What are the best home run bets today for MIL vs TB?
Our top picks are Junior Caminero at 18% and Jackson Chourio at 17%, the two shortest prices on the board. William Contreras, Jake Bauers, Christian Yelich, and Yandy Díaz round out the six trades.
Who leads the home run board for World Series Game 4?
Rays infielder Junior Caminero leads the board at 18%, followed by Brewers leadoff man Jackson Chourio at 17%.
What are the best MLB player props today for Brewers vs Rays?
Our best MLB player props today focus on home runs, with Caminero, Chourio, Contreras, Bauers, Yelich, and Díaz all offering real power and different payout multiples.
Who wins the Brewers vs Rays prediction for Game 4?
Milwaukee leads the series 3-0 and has won eight straight postseason games. Teams that go up 3-0 in a best-of-seven series have won 42 of 43 times, but our picks focus on home run markets and not a side.
Who starts Game 4 of the World Series for the Brewers and Rays?
The Rays start right-hander Griffin Jax. Milwaukee had not announced its starter at the time of writing, with Dustin May, Kyle Harrison, and Shane Drohan among the options.
How do Polymarket home run contracts work?
Each contract resolves Yes if the named player hits at least one home run in that specific game, and No if he doesn't. Each share pays $1 if the contract resolves in your favor, and nothing if it doesn't.
When do today's home run markets resolve?
Each contract resolves once Game 4 is final, based on official MLB box score data for that matchup.
Where can I watch World Series Game 4?
Game 4 airs Tuesday night on FOX and FOX Deportes, and FOX One streams it from Tropicana Field.
