LoL Worlds 2026 · MLB Postseason
MLB ·
Boston Red Sox vs Seattle Mariners result (9:8) on 31 Aug 2026 (MLB): 187 profitable pros on Polymarket/Kalshi took positions, 63% backing Boston Red Sox to win. See who got it right, plus both teams' form.
Final score: Boston Red Sox 9:8 Seattle Mariners (2026-08-31). Before the result, 63% of 146 profitable pros with a win/draw position backed Boston Red Sox to win — that call was right.
187 profitable pros (listed on Tips, cumulative P&L above zero) hold positions on this match. Latest win/draw pick per pro: Boston Red Sox 92 (63%) · Seattle Mariners 54 (37%).
Boston Red Sox, last 5: W L L W L. Seattle Mariners, last 5: L L L L L. Head-to-head, last 3 meetings (Boston Red Sox wins – draws – Seattle Mariners wins): 2-0-1; latest 2026-09-01: Boston Red Sox 9:8 Seattle Mariners.
Sources: public prices and positions on Polymarket and Kalshi; results from public sports data. Data as of 2026-09-01 01:47 UTC+0. How we calculate: methodology
187 profitable pros have positions on this match. Latest win/draw pick per pro: Boston Red Sox to win 92 (63%) · Seattle Mariners to win 54 (37%).
| 2026-09-01 | vs Seattle Mariners | 9:8 | W |
| 2026-08-31 | vs New York Yankees | 1:16 | L |
| 2026-08-30 | vs New York Yankees | 2:9 | L |
| 2026-08-30 | vs New York Yankees | 6:0 | W |
| 2026-08-29 | vs New York Yankees | 0:1 | L |
| 2026-09-01 | vs Boston Red Sox | 8:9 | L |
| 2026-08-31 | vs Toronto Blue Jays | 0:7 | L |
| 2026-08-30 | vs Toronto Blue Jays | 3:4 | L |
| 2026-08-29 | vs Toronto Blue Jays | 1:8 | L |
| 2026-08-27 | vs Philadelphia Phillies | 0:6 | L |
| 2026-09-01 | Boston Red Sox | 9:8 | Seattle Mariners |
| 2026-06-22 | Seattle Mariners | 3:1 | Boston Red Sox |
| 2026-06-21 | Seattle Mariners | 1:5 | Boston Red Sox |
| Date | Match | Pick | Result |
|---|---|---|---|
| 2026-09-01 | foot.fan Kalshi | Seattle wins | Lost |
| 2026-09-01 | sufficient.thrush Kalshi | Seattle wins | Lost |
| 2026-09-01 | light.crack Kalshi | Seattle wins | Lost |
| 2026-09-01 | fierce.zebra9579 Kalshi | Seattle wins | Lost |
| 2026-09-01 | Smooth0perator Kalshi | Seattle wins | Lost |
| 2026-09-01 | mikeymikeymikeymike Kalshi | Boston wins | Won |
| 2026-09-01 | juan.ramirez Kalshi | Boston wins | Won |
| 2026-09-01 | tai2sexy Kalshi | Boston wins | Won |
| 2026-09-01 | woksins Kalshi | BOS -1.5 | Lost |
| 2026-09-01 | dried.head Kalshi | Boston wins | Won |
| 2026-09-01 | fresh.quoteRemo Kalshi | Boston wins | Won |
| 2026-09-01 | 800millionGOAL Kalshi | Boston wins | Won |
| 2026-09-01 | iammariodetino Kalshi | Boston wins | Won |
| 2026-09-01 | bad.trash Kalshi | Under 17.5 | Won |
| 2026-09-01 | whitesox19 Kalshi | Boston wins | Won |
| 2026-09-01 | a.burn.creative Kalshi | Boston wins | Won |
| 2026-09-01 | tooloud713 Kalshi | Boston wins | Won |
| 2026-09-01 | wrist.length Kalshi | Seattle wins | Lost |
| 2026-09-01 | fi1i Kalshi | Seattle wins | Lost |
| 2026-09-01 | scullnbones Kalshi | Seattle wins | Lost |
| 2026-09-01 | spporr Kalshi | Seattle wins | Lost |
| 2026-09-01 | rough.threat Kalshi | Seattle wins | Lost |
| 2026-09-01 | paddyspub Kalshi | Boston wins | Won |
| 2026-09-01 | doubleemdiaz Kalshi | Seattle wins | Lost |
| 2026-09-01 | FrgnLos07 Kalshi | Boston wins | Won |
| 2026-09-01 | vertical.butterfly8692 Kalshi | Seattle wins | Lost |
| 2026-09-01 | urmosthated Kalshi | Boston wins | Won |
| 2026-09-01 | excess.cattle Kalshi | Seattle wins | Won |
| 2026-09-01 | makenatown Kalshi | Seattle wins | Lost |
| 2026-09-01 | titi1420 Kalshi | Seattle wins | Lost |
| 2026-09-01 | pghski17 Kalshi | Seattle wins | Won |
| 2026-09-01 | cliffclavin30 Kalshi | Seattle wins | Won |
| 2026-09-01 | beachfoo Kalshi | Seattle wins | Lost |
| 2026-09-01 | Beeenis Kalshi | Boston wins | Won |
| 2026-09-01 | official.trout4638 Kalshi | Seattle wins | Lost |
| 2026-09-01 | bad.child14641 Kalshi | Seattle wins | Lost |
| 2026-09-01 | ligesavers Kalshi | Boston wins | Won |
| 2026-09-01 | melvin.189 Kalshi | Seattle wins | Lost |
| 2026-09-01 | millorari0 Kalshi | Seattle wins | Lost |
| 2026-09-01 | millonari0 Kalshi | Seattle wins | Lost |
| 2026-09-01 | pmafo22 Kalshi | Boston wins | Won |
| 2026-09-01 | mckee.chad33 Kalshi | Boston wins | Won |
| 2026-09-01 | Kpochukwu Kalshi | Boston wins | Won |
| 2026-09-01 | atomic.heron8683 Kalshi | Seattle wins | Lost |
| 2026-09-01 | a.burn.creative Kalshi | Seattle wins | Lost |
| 2026-09-01 | javier0911 Kalshi | Seattle wins | Lost |
| 2026-09-01 | jassiioye Kalshi | Seattle wins | Lost |
| 2026-09-01 | cwiz Kalshi | Boston wins | Won |
| 2026-09-01 | paddyspub Kalshi | Seattle wins | Lost |
| 2026-09-01 | larosaazul.jesu1397 Kalshi | Seattle wins | Lost |
| 2026-09-01 | Jayway87 Kalshi | Seattle wins | Lost |
| 2026-09-01 | fascinating.platypus0611 Kalshi | Boston wins | Won |
| 2026-09-01 | early.bullfrog1944 Kalshi | Seattle wins | Lost |
| 2026-09-01 | xenophobic.bat8696 Kalshi | Boston wins | Won |
| 2026-09-01 | speedychan Kalshi | Boston wins | Won |
| 2026-09-01 | drunk.bowl Kalshi | Seattle wins | Lost |
| 2026-09-01 | inclined.walrus6087 Kalshi | Seattle wins | Lost |
| 2026-09-01 | riveraa215 Kalshi | Seattle wins | Lost |
| 2026-09-01 | stumforp Kalshi | Seattle wins | Lost |
| 2026-09-01 | formal.deer Kalshi | Boston wins | Won |