Padres 8, Mariners 3: Gavin Sheets Homers Twice as San Diego Completes Season Sweep

The lead

May 17, 2026 - Seattle - The San Diego Padres turned a five-run sixth inning into a season-series exclamation point, beating the Seattle Mariners 8-3 to sweep the six-game head-to-head ledger, per CBS Sports and NBC Sports.

Gavin Sheets homered twice, walked twice, and drove in four on a 3-for-3 afternoon that included an RBI double in the seventh, CBS detailed. Lucas Giolito, freshly promoted, allowed one hit over five innings before three walks loaded the bases to start Seattle’s three-run sixth.

How the game turned

George Kirby took the loss after San Diego hung five in the sixth; Sheets’ two-run homer and Jackson Merrill’s RBI double headlined the rally CBS listed. Ty France answered with a two-run single in the bottom half to briefly reopen the game before the Padres stabilized.

Pitching and matchup notes

Giolito’s line reflected both dominance and a sharp hook once command slipped—AthX Engine still graded the day around Sheets’ 18 hitting FP, the top mark among May 17 hitters, while the club clocked in at 16 team FP.

Bats that changed the board

The Padres stacked leverage at-bats: Sheets reached five times, France produced for Seattle, and Colt Emerson debuted with a walk for the Mariners per CBS—small footnotes on opposite sides of the score.

AthX Engine fantasy angle

When a call-up starter clears the order once through and a veteran slugger doubles his homer count in the same game, AthX Engine often lands the club in the top handful of team totals without needing double-digit hits. That output is for fantasy context—not a direct read on dynamic pricing.

What comes next

San Diego departs the Pacific Northwest with season bragging rights sealed; Seattle pivots toward resetting a rotation taxed by traffic and a crooked middle frame.

*Sources: MLB.com schedule, MLB gameday wrap, CBS Sports recap, NBC Sports, AthX Engine scoring. Information only; not financial advice.*