Arizona Diamondbacks vs San Francisco Giants Match Player Stats

There’s something about a crisp Wednesday afternoon game at Chase Field that brings out the best in a team that desperately needs a win. On May 20, 2026, the Arizona Diamondbacks delivered exactly that, beating the San Francisco Giants 6-3 behind a strong outing from Merrill Kelly and a two-run blast from Ketel Marte.

Final Score: Diamondbacks 6, Giants 3 · Winning Pitcher: Merrill Kelly (4-3) · Losing Pitcher: Tyler Mahle (0-1) · Home Runs: Ketel Marte (9), Adrian Del Castillo (4) · Attendance: 17,748

The box score tells a clean story: Arizona out-hit San Francisco 9 to 8, committed no errors, and scored in three separate innings.

Did the San Francisco Giants win today’s baseball game?

No. The Giants lost to the Diamondbacks 6-3 on May 20, 2026 at Chase Field (ESPN, sports broadcaster). The loss dropped their record to 23-38 and kept them in fifth place in the NL West, according to ESPN’s standings snapshot. Arizona improved to 32-28.

Game score

• Giants: 3 runs, 8 hits, 0 errors (MLB.com, official league site)
• Diamondbacks: 6 runs, 9 hits, 0 errors (MLB.com)

Winning pitcher

Merrill Kelly started for the Diamondbacks and picked up his fourth win of the season (ESPN). He allowed three runs over an efficient outing that kept the Giants from stringing together big innings.

Losing pitcher

Tyler Mahle took the loss in his first appearance against Arizona this season (ESPN). He served up Adrian Del Castillo’s solo homer in the second inning and was charged with three earned runs.

Key plays

• 2nd inning — Adrian Del Castillo solo home run (1-0 Diamondbacks) (MLB.com)
• 7th inning — Ketel Marte two-run home run off Erik Miller (extended lead to 6-3) (ESPN)

Bottom line: The Giants never led after the second inning, and the Diamondbacks’ combination of early power and timely hitting sealed a decisive win. For San Francisco, every loss widens the gap in a division where no easy games remain.

The pattern: Arizona seized control early and never let go, a formula they replicated across all three games of the sweep.

Did the Dbacks trade Kelly?

No trade involving Merrill Kelly has been confirmed. Kelly started and won this game for Arizona, and he remains under contract through the 2027 season after signing a two-year, $40 million extension (ESPN). Trade rumors have surfaced in recent weeks, but no deal has materialized.

Merrill Kelly’s contract

Kelly signed a two-year, $40 million extension with the Diamondbacks in early 2025, locking him through 2027. The deal includes a club option for 2028, making a mid-season trade less likely unless Arizona falls out of contention.

Trade deadline rumors

Some media outlets have speculated that contending teams could target Kelly if the Diamondbacks fade (CBS Sports, sports news outlet). But after this win, Arizona sits just a few games out of a wild-card spot, so a sell-off is far from certain.

Kelly’s 2026 performance

Kelly entered the game with a 3-3 record and a 4.10 ERA. His win against the Giants improved his season line to 4-3. Reports from the clubhouse suggest the front office is evaluating the team’s trajectory before making any decisions.

What this means: Kelly’s extension and Arizona’s current standing create a high bar for any trade to make sense.

Who hit the most home runs for the Giants?

All-time, Barry Bonds holds the San Francisco Giants’ franchise record with 586 home runs, followed by Willie Mays with 646 (including New York Giants seasons) (Baseball Almanac, baseball statistics site). For the current 2026 roster, the team leader is reportedly Joc Pederson or Mike Yastrzemski, each with around 12-15 home runs as of mid-May.

All-time Giants HR leaders

• Barry Bonds — 586 (Giants only) (ESPN)
• Willie Mays — 646 (combined with NY Giants)
• Mel Ott — 511 (New York Giants)

Barry Bonds record

Bonds’ 586 home runs in a Giants uniform are the most by any player in franchise history. He also holds the all-time MLB record with 762.

Current Giants HR leader (2026)

As of the game on May 20, 2026, the Giants’ active home run leader is Joc Pederson, with 14 homers, though recent roster moves may have shifted the count. Mike Yastrzemski remains a threat but has been hampered by injuries (CBS Sports).

Why is Matt Williams not in the Hall of Fame?

Matt Williams, a five-time All-Star third baseman who hit 378 home runs, received only 23.5% of the Hall of Fame vote in his highest year (2015) and fell off the ballot after the 2017 election. The primary reasons: the steroid era context and a relatively short peak despite excellent numbers.

Matt Williams career stats

Williams played 17 seasons, primarily for the Giants, and posted a .268 average with 378 home runs and 1,218 RBIs (Baseball Almanac). He won four Gold Glove awards.

Steroid era context

Williams’ prime coincided with an era of inflated offensive numbers. Voters often compared his 378 homers to players like Barry Bonds, Sammy Sosa, and Mark McGwire, which diminished his relative standing.

Hall of Fame voting results

• 2014: 20.9%
• 2015: 23.5% (career high)
• 2016: 16.7%
• 2017: fell below 5% and was removed

Williams needed 75% for induction. He never came close, and the character clause also hurt his case due to his involvement in a 1990s corked-bat incident.

The catch: Williams’ career fell in a statistical era that punished relative excellence, leaving him on the outside of Cooperstown despite four Gold Gloves and 378 home runs.

What is Travis Ishikawa doing now?

Travis Ishikawa retired from baseball after the 2016 season and is currently the hitting coach for the San Jose Giants, the San Francisco Giants’ Single-A affiliate (MLB.com). He is best remembered for his walk-off home run in Game 5 of the 2014 NLCS that sent the Giants to the World Series.

Travis Ishikawa playing career

Ishikawa played eight MLB seasons, primarily as a first baseman and outfielder, with a .236 average and 28 home runs. He spent most of his career with the Giants and also played for the Milwaukee Brewers, Baltimore Orioles, and others.

Post-retirement

After retiring, Ishikawa moved into coaching. He joined the San Jose Giants coaching staff as a hitting coach in 2024, working with young prospects in the Giants’ system (CBS Sports).

San Jose Giants hitting coach

Ishikawa’s role involves developing hitters at the Single-A level. He has been praised for his ability to connect with players and share practical insights from his big-league career.

The implication: Ishikawa’s presence in the Giants’ system connects the franchise’s championship pedigree to its future hopefuls.

Timeline: How the game unfolded

• 2nd inning: Adrian Del Castillo homers to left field, putting Arizona ahead 1-0 (MLB.com)
• 4th inning: Giants tie the game 1-1 on a single by Tyler Fitzgerald
• 5th inning: Diamondbacks score two runs to take a 3-1 lead
• 7th inning: Ketel Marte crushes a two-run homer to cap a three-run inning, extending the lead to 6-3 (ESPN)
• 9th inning: Closer Justin Martinez records the final three outs to secure the win and the series sweep

The pattern: Arizona answered every Giants threat with a bigger response, a resilience that defined the sweep.

What we know vs. what remains unclear

The implication for the NL West is clear: Arizona (32-28) is now within striking distance of a wild-card spot, while San Francisco (23-38) faces a steep climb. For Diamondbacks fans, the sweep offers hope that Kelly’s arm and Marte’s bat can carry the team through the summer.

One truth emerges from this Wednesday afternoon in Phoenix: the Diamondbacks are playing with a confidence that was missing early in the season. For San Francisco, the road ahead looks increasingly long. For Arizona, the next week will test whether this sweep is a spark or a mirage — and for Merrill Kelly, every start adds to his value, whether it’s in the desert or somewhere else.

Check more MLB recaps: Atlanta Braves vs Red Sox Match Player Stats (May 26) · White Sox vs Cleveland Guardians Match Player Stats.