MLB — live Kalshi & Polymarket vs sportsbook odds
Games
43
With books
12/43
Markets
86
Kalshi quotes
85
Book quotes
264
Books tracked
7
Recent moves (24h)
Game slate (43)
🟢Top buysKalshi cheaper than books — buy YES on Kalshi
San Diego
BUY+0.96%
🔒 net-of-fee edge — sign up free
Edge vs books median
Kalshi
30.5%
Books med
31.5%
Best: Caesars +210
San Diego vs Los Angeles D
Washington
BUY+0.90%
🔒 net-of-fee edge — sign up free
Edge vs books median
Kalshi
56.5%
Books med
57.4%
Best: BetRivers -143
Pittsburgh vs Washington
Arizona
BUY+0.71%
🔒 net-of-fee edge — sign up free
Edge vs books median
Kalshi
41.5%
Books med
42.2%
Best: BetRivers +130
Milwaukee vs Arizona
🔴Most overpriced on KalshiSell YES on Kalshi, or bet at the books instead
Milwaukee
SELL-1.71%
🔒 net-of-fee edge — sign up free
Edge vs books median
Kalshi
59.5%
Books med
57.8%
Best: Fanatics -150
Milwaukee vs Arizona
Houston
SELL-1.20%
🔒 net-of-fee edge — sign up free
Edge vs books median
Kalshi
50.5%
Books med
49.3%
Best: BetMGM -105
Tampa Bay vs Houston
Los Angeles D
SELL-0.96%
🔒 net-of-fee edge — sign up free
Edge vs books median
Kalshi
69.5%
Books med
68.5%
Best: Fanatics -245
San Diego vs Los Angeles D
Filter:Edge vs Books median. Click any column header to sort. 24 rows.
Team / Game | Kalshi | Polymarket | Books med | Buy edge | vs best | # | Start | BetMGM | BetRivers | Caesars | DraftKings | Fanatics🔒 | FanDuel | Other🔒 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30.5% | — | 31.5% | +0.96% | +0.38% Caesars +210 | 11 | Fri 10:10 PM | 31.8% | 31.1% | 30.9%★ | 31.1% | 31.9% | 31.5% | 31.5% | |
| 56.5% | — | 57.4% | +0.90% | -0.65% BetRivers -143 | 11 | Fri 6:45 PM | 57.4% | 55.9%★ | 56.8% | 57.3% | 57.4% | 56.3% | 57.8% | |
| 41.5% | — | 42.2% | +0.71% | -0.21% BetRivers +130 | 11 | Fri 9:45 PM | 42.2% | 41.3%★ | 41.7% | 41.7% | 42.6% | 41.8% | 42.4% | |
| 48.5% | — | 48.9% | +0.42% | -1.38% BetRivers +102 | 11 | Fri 7:15 PM | 48.9% | 47.1%★ | 48.9% | 49.0% | 48.9% | 49.6% | 48.8% | |
| 41.5% | — | 41.9% | +0.37% | -0.21% BetRivers +130 | 11 | Fri 8:10 PM | 42.2% | 41.3%★ | 41.7% | 41.7% | 42.6% | 41.8% | 42.2% | |
| 50.5% | — | 50.7% | +0.20% | -1.14% BetRivers -108 | 11 | Fri 8:15 PM | 51.1% | 49.4%★ | 51.1% | 51.0% | 51.1% | 50.0% | 50.7% | |
| 45.5% | — | 45.6% | +0.06% | -0.76% Caesars +115 | 11 | Fri 4:05 PM | 45.3% | 45.6% | 44.7%★ | 44.9% | 45.7% | 45.7% | 45.6% | |
| 46.5% | — | 46.5% | +0.02% | -0.46% BetRivers +106 | 11 | Fri 10:10 PM | 46.8% | 46.0%★ | 46.8% | 46.7% | 46.8% | 46.3% | 46.4% | |
| 53.5% | — | 53.5% | -0.02% | -0.25% BetMGM -125 | 11 | Fri 10:10 PM | 53.2%★ | 54.0% | 53.2% | 53.3% | 53.2% | 53.7% | 53.6% | |
| 54.5% | — | 54.4% | -0.06% | -0.23% Fanatics -130 | 11 | Fri 4:05 PM | 54.7% | 54.4% | 55.3% | 55.1% | 54.3% | 54.3% | 54.4% | |
| 47.5% | — | 47.4% | -0.12% | -0.78% FanDuel +106 | 11 | Fri 7:10 PM | 47.8% | 47.6% | 47.8% | 47.3% | 47.8% | 46.7%★ | 47.4% | |
| 37.5% | — | 37.4% | -0.15% | -0.46% DraftKings +158 | 11 | Fri 7:05 PM | 37.5% | 38.7% | 37.2% | 37.0%★ | 37.4% | 37.3% | 37.4% | |
| 45.5% | — | 45.2% | -0.30% | -0.80% FanDuel +116 | 11 | Fri 7:10 PM | 45.3% | 44.8% | 44.7% | 45.7% | 45.7% | 44.7%★ | 45.2% | |
| 58.5% | — | 58.1% | -0.37% | -1.05% Fanatics -150 | 11 | Fri 8:10 PM | 57.8% | 58.7% | 58.3% | 58.3% | 57.4% | 58.2% | 57.8% | |
| 53.0% | — | 52.6% | -0.38% | -0.83% BetMGM -120 | 11 | Fri 7:10 PM | 52.2%★ | 52.4% | 52.2% | 52.7% | 52.2% | 53.3% | 52.6% | |
| 51.5% | — | 51.1% | -0.42% | -1.05% FanDuel -110 | 11 | Fri 7:15 PM | 51.1% | 52.9% | 51.1% | 51.0% | 51.1% | 50.4%★ | 51.2% | |
| 49.5% | — | 49.0% | -0.48% | -0.77% BetRivers -106 | 11 | Fri 9:38 PM | 48.9% | 48.7%★ | 48.9% | 49.0% | 48.9% | 49.1% | 49.1% | |
| 51.5% | — | 51.0% | -0.52% | -0.61% FanDuel -112 | 11 | Fri 9:38 PM | 51.1% | 51.3% | 51.1% | 51.0% | 51.1% | 50.9%★ | 50.9% | |
| 55.5% | — | 54.8% | -0.69% | -1.23% Fanatics -130 | 11 | Fri 7:10 PM | 54.7% | 55.2% | 55.3% | 54.3% | 54.3% | 55.3% | 54.8% | |
| 63.5% | — | 62.6% | -0.85% | -2.24% BetRivers -182 | 11 | Fri 7:05 PM | 62.5% | 61.3%★ | 62.8% | 63.0% | 62.6% | 62.7% | 62.6% | |
| 43.5% | — | 42.6% | -0.90% | -1.26% Other +128 | 11 | Fri 6:45 PM | 42.6% | 44.1% | 43.2% | 42.7% | 42.6% | 43.7% | 42.2% | |
| 69.5% | — | 68.5% | -0.96% | -1.44% Fanatics -245 | 11 | Fri 10:10 PM | 68.2% | 68.9% | 69.1% | 68.9% | 68.1% | 68.5% | 68.5% | |
| 50.5% | — | 49.3% | -1.20% | -1.58% BetMGM -105 | 11 | Fri 8:15 PM | 48.9%★ | 50.6% | 48.9% | 49.0% | 48.9% | 50.0% | 49.3% | |
| 59.5% | — | 57.8% | -1.71% | -2.05% Fanatics -150 | 11 | Fri 9:45 PM | 57.8% | 58.7% | 58.3% | 58.3% | 57.4% | 58.2% | 57.6% |
Free tier sees individual games only. Upgrade to Pro ($10/mo) to unlock championship & conference futures, MVP & award odds, division winners, win totals, playoff series, team detail pages, and historical archives.
MLB odds — frequently asked questions
What MLB markets does Kalshi offer?
Kalshi currently lists 43 MLB game lines across 86 markets, plus championship, conference, division, MVP, and award futures depending on the season. SportsBookISH tracks every Kalshi market alongside 7 US sportsbooks so you can see where Kalshi is priced cheaper or more expensive than the books.
Where is the biggest Kalshi edge in MLB right now?
Milwaukee currently shows the largest pricing gap on Kalshi, -1.7 percentage points different from the sportsbook consensus. Edges shift constantly — refresh this page for the latest snapshot.
How often do MLB odds update?
Kalshi prices are pulled every 5 minutes via the public Kalshi REST API. Sportsbook lines refresh every 15-30 minutes. References older than 30 minutes are filtered out so you never see stale comparisons on this page.
What's the difference between Kalshi and traditional sportsbooks for MLB?
Kalshi is a CFTC-regulated event-contract exchange — you buy YES or NO contracts that settle at $1 or $0. Sportsbooks set prices and bake in a vig (typically 4-8% on game lines). Kalshi's fee is max(1¢, ceil(0.07 × p × (1-p) × 100)) capped at 7¢ per contract. When Kalshi prices a side cheaper than the no-vig book consensus, that's a +EV opportunity.
Are MLB futures available on Kalshi?
Yes. SportsBookISH tracks championship, conference, division, MVP, award, and (where applicable) win-total futures markets for MLB. Pro and Elite subscribers get full per-book pricing on every futures market; free users can see game-line comparisons.
Is betting on MLB on Kalshi legal in my state?
Kalshi operates as a federally-regulated exchange under the CFTC, which means it's legally accessible from all 50 U.S. states (unlike most sportsbooks, which are state-by-state). A handful of states have raised challenges to specific market types — always check Kalshi's current state availability page before trading.