MLB ·
Boston Red Sox vs San Francisco Giants result (6:4) on 21 Aug 2026 (MLB): 5 profitable pros on Polymarket/Kalshi took positions, 60% backing San Francisco Giants to win. See who got it right, plus both teams' form.
Final score: Boston Red Sox 6:4 San Francisco Giants (2026-08-21). Before the result, 60% of 5 profitable pros with a win/draw position backed San Francisco Giants to win — that call was wrong.
5 profitable pros (listed on Tips, cumulative P&L above zero) hold positions on this match. Latest win/draw pick per pro: Boston Red Sox 2 (40%) · San Francisco Giants 3 (60%).
Boston Red Sox, last 5: L W W L W. San Francisco Giants, last 5: L W L L W. Head-to-head, last 3 meetings (Boston Red Sox wins – draws – San Francisco Giants wins): 1-0-2; latest 2025-06-23: San Francisco Giants 9:5 Boston Red Sox.
Sources: public prices and positions on Polymarket and Kalshi; results from public sports data. Data as of 2026-08-21 23:59 UTC+0. How we calculate: methodology
5 profitable pros have positions on this match. Latest win/draw pick per pro: Boston Red Sox to win 2 (40%) · San Francisco Giants to win 3 (60%).
| 2026-08-20 | vs Arizona Diamondbacks | 6:7 | L |
| 2026-08-19 | vs Arizona Diamondbacks | 9:4 | W |
| 2026-08-18 | vs Arizona Diamondbacks | 11:1 | W |
| 2026-08-17 | vs Pittsburgh Pirates | 3:8 | L |
| 2026-08-16 | vs Pittsburgh Pirates | 4:0 | W |
| 2026-08-21 | vs Cleveland Guardians | 2:5 | L |
| 2026-08-20 | vs Cleveland Guardians | 1:0 | W |
| 2026-08-19 | vs Cleveland Guardians | 1:8 | L |
| 2026-08-17 | vs Colorado Rockies | 7:13 | L |
| 2026-08-16 | vs Colorado Rockies | 7:1 | W |
| 2025-06-23 | San Francisco Giants | 9:5 | Boston Red Sox |
| 2025-06-22 | San Francisco Giants | 3:2 | Boston Red Sox |
| 2025-06-21 | San Francisco Giants | 5:7 | Boston Red Sox |
| Date | Match | Pick | Result |
|---|---|---|---|
| 2026-08-22 | averagejoetraders Polymarket | San Francisco Giants to win | Lost |
| 2026-08-22 | funfacts Polymarket | San Francisco Giants to win | Lost |
| 2026-08-22 | ssl132 Polymarket | San Francisco Giants to win | Lost |
| 2026-08-22 | KostyaDDD Polymarket | Boston Red Sox to win | Won |
| 2026-08-21 | 0xa68c…f805 Polymarket | Boston Red Sox to win | Won |