The Arizona Diamondbacks turned another meeting with the San Francisco Giants into a rout, winning 8-2 to push their record against San Francisco to a perfect 8-0 this season. No team has owned the Giants quite like Arizona has in 2026, and Tuesday's result only widened the gap.

What happened

Arizona controlled the game from the outset and pulled away for an 8-2 win, its eighth straight over San Francisco this year. The victory keeps the Diamondbacks unbeaten in the season series and extends one of the most one-sided head-to-head runs in the sport.

Why it matters

The dominance over a single opponent is quietly propping up Arizona's entire season. The club is 13-2 against the Giants and Rockies combined, yet just 30-40 against the rest of the league. That split raises a pointed question about how much of the Diamondbacks' record is built on a favorable slice of the schedule rather than broad, consistent play.

By the numbers

8-0 versus San Francisco. 13-2 against the Giants and Rockies together. 30-40 against everyone else. The three figures tell the story of a team feasting on two opponents while struggling to hold its own elsewhere, a divide that becomes harder to ignore with each win over the Giants.

What to watch next

The real test arrives when the calendar turns away from San Francisco and Colorado. If Arizona can carry this form into games against the rest of the league, the record starts to look legitimate; if the 30-40 mark proves closer to the truth, the perfect run against the Giants will read as a mirage. The coming stretch of matchups will settle which version of the Diamondbacks is real.