The Arizona Diamondbacks and Houston Astros present a compelling World Series odds comparison. The Arizona Diamondbacks currently sit at +8600 (1.1%) while the Houston Astros are at +7000 (1.4%) — a razor-thin margin separating the two.
Since the start of the 2026 season, the Arizona Diamondbacks have drifted from +6200 to +8600, while the Houston Astros have drifted from +3560 to +7000.
The market currently gives the Houston Astros the edge at +7000, while the Arizona Diamondbacks sit at +8600. Both teams' full odds history across all tracked sportsbooks is charted above.