AthX Logo← Back to Blog
MLB13 min read

Diamondbacks 6, Giants 3: Marte Homers Again as Arizona Completes Sweep

The lead

May 20, 2026 - Phoenix - The Arizona Diamondbacks completed a three-game sweep of the San Francisco Giants with a 6-3 win at Chase Field, as Ketel Marte homered for the second straight night and Geraldo Perdomo drove in three, per the Associated Press recap on CBS Sports.

Marte went 3-for-3 with a walk, scored three runs, and finished a triple shy of the cycle—one day after his walk-off three-run homer in the ninth on Tuesday. Arizona has won four straight and five of six.

How the game turned

Casey Schmitt homered in the first for a 1-0 Giants lead—his ninth of the season. Marte's two-run shot in the third put Arizona ahead 3-2.

The Diamondbacks broke it open in the fifth on Ildemaro Vargas's RBI groundout and Perdomo's two-run double down the right-field line for 6-3. Merrill Kelly (4-3) worked six innings on three runs and eight hits with four strikeouts—his third straight quality start after throwing his first career complete game last week, AP noted. Paul Sewald notched his 11th save.

Pitching and matchup notes

Tyler Mahle (1-6) allowed six runs on eight hits over five innings. San Francisco fell to 20-30 and has lost six of eight.

AthX Engine graded Marte at 13 hitting FP—tied for the daily hitting lead—and Arizona at 12 team FP.

Bats that changed the board

Rookies Jose Fernandez and Ryan Waldschmidt each added two singles as Arizona's lineup kept pressure on Mahle after Marte's third-inning flip.

AthX Engine fantasy angle

Back-to-back homer nights stack hitting FP fast—AthX Engine had Marte atop the board even without a cycle-clinching triple. Team totals still trailed Atlanta and Pittsburgh because Arizona's win was efficient, not explosive. Daily scoring differs from dynamic pricing.

What comes next

Arizona sends Eduardo Rodriguez against Colorado on Thursday; San Francisco is off before hosting Chicago (AL), per AP's probables.

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

Ready to trade Diamondbacks 6, Giants 3: Marte Homers Again as Arizona Completes Sweep?

Download the AthX Android app, or sign up on the web. Trade player and team shares with low 1–4% fees and performance-linked pricing.

Launch bonus ends April 30 · 2026 MLB launch window

Earn up to $500 in bonus player shares as an eligible new account — fund with qualifying monthly deposits (terms apply).

Web signup: https://getathx.com/signup

Double up: referrals + launch promo

Refer a friend before April 30 — when they fund with $100+, you can both earn bonus shares through the referral program, in addition to the limited-time up to $500 in bonus player shares launch offer (terms apply).

Explore AthX trading pages

Browse searchable directories or jump to featured player and team pages (stats, projections, FAQs).