The MLB Belt · rivalry
Boston Red Sox vs. St. Louis Cardinals
10Belt meetings
9Red Sox wins
1Cardinals wins
4Title changes
Boston Red Sox and St. Louis Cardinals have met 10 times with the MLB belt on the line, from October 23, 2004 to April 12, 2026. The belt changed hands in 4 of those games. Boston Red Sox lead the belt series 9–1.
| Belt game | Date | Result | |
|---|---|---|---|
| 19,209 | Oct 23, 2004 | Boston Red Sox beat St. Louis Cardinals 11–9 Playoffs | Title change |
| 19,210 | Oct 24, 2004 | Boston Red Sox beat St. Louis Cardinals 6–2 Playoffs | Defense |
| 19,211 | Oct 26, 2004 | Boston Red Sox beat St. Louis Cardinals 4–1 Playoffs | Defense |
| 19,212 | Oct 27, 2004 | Boston Red Sox beat St. Louis Cardinals 3–0 Playoffs | Defense |
| 22,486 | Apr 4, 2025 | Boston Red Sox beat St. Louis Cardinals 13–9 | Title change |
| 22,487 | Apr 6, 2025 | Boston Red Sox beat St. Louis Cardinals 5–4 | Defense |
| 22,488 | Apr 6, 2025 | Boston Red Sox beat St. Louis Cardinals 18–7 | Defense |
| 22,653 | Apr 10, 2026 | St. Louis Cardinals beat Boston Red Sox 3–2 | Title change |
| 22,654 | Apr 11, 2026 | Boston Red Sox beat St. Louis Cardinals 7–1 | Title change |
| 22,655 | Apr 12, 2026 | Boston Red Sox beat St. Louis Cardinals 9–3 | Defense |