Win more if the outcome lands within a range

A bookmaker's middle allows you to bet on overlapping lines from different bookmakers and win both bets if the result falls within a specific range. Read more


We've just found 42 middles for your filter settings.

Of these, 35 middles offer a positive expected value.

To see middles with a positive expected value and lossless surebets-middles, please choose a plan.

Found 7 middles with Baseball and Polymarket | Add to filter | Back to my middles
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Examples with a low expected value
| ProfitBookmaker ▲▼ EventMarketOdds
-0.03%3.75 / 21.0%
-17.39% / 65.2%

Polymarket
Baseball
21/09
23:40
Washington Nationals – Detroit Tigers
MLB
Over 9.5 OT
$999.57
Kalshi
Baseball
21/09
23:40
Detroit – Washington
MLB
Over 12.5 OT - No
$29.52
+ 3 middles for this event
-0.57%1.56 / 38.3%
-28.08% / 43.8%

Polymarket
Baseball
22/09
02:45
Minnesota Twins – San Francisco Giants
MLB
Over 7.5 OT
$131.60
Kalshi
Baseball
22/09
02:45
San Francisco – Minnesota
MLB
Over 12.5 OT - No
$415.74
-1.41%3.03 / 23.1%
-19.88% / 60.2%

Polymarket
Baseball
21/09
23:35
Toronto Blue Jays – Baltimore Orioles
MLB
AH2(+2.5) OT
$24.09
Kalshi
Baseball
21/09
23:35
Baltimore – Toronto
MLB
21-2 OT
$3,789.00
+ 1 middle for this event