Live MLB odds and prediction markets — game lines, division races and the World Series.
Polymarket has 24 live MLB markets right now (updated October 2026). As of October 2026, the most-traded Polymarket MLB market is “MLB World Series Champion 2026”, where Milwaukee Brewers is the favorite at 73% implied odds on $93.0K of 24h volume.
MLB markets on Polymarket include daily game money lines, division and pennant races, and the World Series outright (every club on one board) — all priced on live, continuously updating implied odds.
A Polymarket market isn't a sportsbook line — it's a live market of shares. Each outcome trades between 0¢ and 100¢, and the price isthe crowd's implied probability: a side at 60¢ is the market's 60% pick. There's no bookmaker setting the number and baking in a margin; the odds move in real time as traders buy and sell, so a roster leak, a map result or an in-game comeback re-prices the market instantly. Back a side you think is mispriced, and winning shares settle at $1 while losing shares go to $0 — the odds and the payout are the same number.
Polynyx is the independent analytics layer on top: it pulls the same live mlb odds and 24h volume as the interactive grid, shows which wallets are trading each market, and ranks the sharpest mlb traders. You place bets on Polymarket itself; nothing here is financial advice.
24 markets, hottest by 24h volume first.
As of October 2026, the most-traded Polymarket MLB market is “MLB World Series Champion 2026”, where Milwaukee Brewers is the favorite at 73% implied odds on $93.0K of 24h volume.
| # | Market | Current odds |
|---|---|---|
| 1 | MLB World Series Champion 2026 Milwaukee Brewers73%Tampa Bay Rays27% Open |
The wallets with the most realized profit inside MLB markets — rebuilt from on-chain trades, bots filtered out. Follow their positioning before you bet.
| # | Trader | MLB PnL |
|---|---|---|
| 1 | tazcot | +$2.60M |
| 2 | afghj2421 | +$1.57M |
| 3 | justaluckydude |
The free tier shows the shapeof the edge — live odds, volume and the full leaderboard. Premium names and quantifies it: who's buying, how good they really are, and the model picks as they fire.
| Capability | Free | Premium |
|---|---|---|
| Live MLB odds, 24h volume & hot markets | Included | Included |
| Full MLB trader leaderboard (ranked by realized PnL) |
Polynyx is independent analytics, not a sportsbook, and nothing here is financial advice.
| 2 | Tampa Bay Rays vs. Milwaukee Brewers Milwaukee Brewers54%Tampa Bay Rays47% Upcoming$36.8K 24h |
| 3 | MLB Postseason: World Series MVP William Contreras24%Jackson Chourio15%+36 Open$10.9K 24h |
| 4 | Yokohama BayStars vs. Fukuoka SoftBank Hawks Fukuoka SoftBank Hawks100%Yokohama BayStars0% Live$4.4K 24h |
| 5 | MLB Postseason: Strikeout Leader Jacob Misiorowski4%Freddy Peralta1%+1 Open$1.8K 24h |
| 6 | MLB 2026: World Series Winning League National League74%American League26% Open$1.4K 24h |
| 7 | MLB Postseason: Hit Leader Yandy Díaz33%William Contreras30%+1 Open$936 24h |
| 8 | MLB Postseason: RBI Leader Jake Bauers8%Liam Hicks6%+3 Open$431 24h |
| 9 | Junior Caminero: Home Runs O/U 0.5 Under91%Over9% Upcoming$347 24h |
| 10 | Will the longest game of the 2026 MLB Postseason last 17+ innings? Yes3%+1 Open$344 24h |
| 11 | MLB Postseason: Home Run Leader Ben Rice55%Jackson Chourio12%+1 Open$328 24h |
| 12 | MLB Postseason: SB Leader Jazz Chisholm Jr.4%Cedric Mullins3%+2 Open$313 24h |
| 13 | Spread: Tampa Bay Rays (-1.5) Milwaukee Brewers67%Tampa Bay Rays34% Upcoming$293 24h |
| 14 | Will there be 6+ no-hitters thrown during the 2026 MLB season? Yes0%+1 Open$268 24h |
| 15 | Tampa Bay Rays winning after 5 innings? Yes42%+1 Upcoming$250 24h |
| +$1.06M |
| 4 | 0x1b20… | +$1.04M |
| 5 | mentionmarket | +$996K |
| Included |
| Included |
| Who's buying — smart-money names, ranks & P&L on MLB markets | Premium only | Included |
| ROI & win rate on every MLB trader | Premium only | Included |
| Live model picks & sharp-agreement signals, as they fire | Premium only | Included |
| Full trade history & all-time P&L per wallet | Last 30 days | All-time |
| Category breakdowns + best & worst markets per wallet | Premium only | Included |
| Track wallets as one portfolio | 1 wallet | Unlimited |