San Francisco Giants at Arizona Diamondbacks: Final Score & Recap
Line Score
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SF | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 8 | 0 |
| AZ | 1 | 0 | 2 | 0 | 3 | 0 | 0 | 0 | - | 6 | 9 | 0 |
The Story
The Arizona Diamondbacks defeated the San Francisco Giants 6-3 at Chase Field on May 20, 2026, a result that aligned closely with the DiamondIQ model's pre-game estimate, which opened at a 66 percent home win probability and finished at 100 percent as Arizona pulled away convincingly. The Giants kept pace early, matching Arizona run for run through the first two innings, but the Diamondbacks seized control with a two-run third and a decisive three-run fifth that effectively ended any competitive tension.
The biggest swing of the game came in the bottom of the third, when Ketel Marte connected on a home run off Tyler Mahle, a play that added 17.3 percent to Arizona's win probability and represented the clearest inflection point of the contest. Marte returned to the forefront in the fifth with a single off Mahle that added another 8.2 percent, and Geraldo Perdomo extended the frame with a double that contributed 9.7 percent, the two plays combining to give Arizona its decisive cushion. San Francisco's lone meaningful counter came in the top of the fourth, when Drew Gilbert singled off Merrill Kelly to add 10.8 percent from the Giants' perspective, though the team could not capitalize enough to change the game's trajectory. A Tim Tawa strikeout in the bottom of the second, costing Arizona 8.3 percent in win probability, was briefly notable but proved inconsequential given the offense that followed.
Ketel Marte finished as the game's dominant performer by the DiamondIQ model's measure, posting a combined WPA of plus-27.2 percent and a RE24 of plus-3.4, easily the highest marks on either side. Drew Gilbert contributed plus-14.5 percent WPA for San Francisco, and Perdomo added plus-8.3 percent for Arizona. On the mound, Brandon Pfaadt led Arizona's pitching staff with plus-4.5 percent WPA, supported by Brandyn Garcia at plus-2.8 percent and Paul Sewald at plus-2.4 percent, as the Diamondbacks bullpen held firm through the final innings to secure the three-run victory.