Arizona Diamondbacks pitcher Madison Bumgarner waits for pitching coach Matt Herges as catcher Carson Kelly and third baseman Eduardo Escobar (5) wait with Bumgarner in the fourth inning at Oracle Park in San Francisco on Saturday night (AP News photo)

By Jeremy Kahn

SAN FRANCISCO–A former San Francisco Giants player returned to Oracle Park, but this was no ordinary player for the Giants.

Madison Bumgarner, who helped lead the Giants to three World Series Championships in a five-year period in 2010, 2012 and 2014 is now pitching for the NL West Division rival, the Arizona Diamondbacks.

In his first start since going on injured list with a back injury, Bumgarner went four innings, allowing two runs on three hits, walking two and striking out two and the Giants defeated the Diamondbacks 4-3 at Oracle Park. Bumgarner fell to 0-4 on the season in his first season with the Diamondbacks.

Bumgarner gave up back-to-back home runs to former teammate Evan Longoria and then Darren Ruf gave the Giants the lead, as his solo home run over the center field wall went half up the netting.

Those would be the only two runs that the Giants would score against Bumgarner, as they won for the fourth time in five outings against the Diamondbacks at Oracle Park.

Trevor Cahill went the first 2.2 innings, as he allowed one run on two hits, walked two and struck two.

Seven relievers went the final six and one-thirds innings, as Caleb Baragar won for the fourth time in five decisions, then Sam Coonrod, Jarlin Garcia, Trevor Gott, Tyler Rogers, Sam Selman and Tony Watson combined to allow two runs on four hits, walked two and struck out six. Watson picked up his first save of the season, and his first save since May 21, 2017, while with the Pittsburgh Pirates against the Philadelphia Phillies at PNC Park.

Cahill gave up a sacrifice fly to Christian Walker that scored Kole Calhoun from third base in the top of the first inning. Calhoun walked against Cahill, went to second on a Cahill wild pitch and then went to third on a ground ball to first base that Brandon Belt fielded then threw to Cahill for the first out of the inning.

After Bumgarner retired his former team in order in the bottom of the first inning, things were different in the bottom of the second inning. On a 1-1 pitch, Longoria launched a solo home run halfway up the left field bleachers for his fifth home run of the season, then five later, Ruf launched a 454 home run over the center field wall.

This was the first time that the Giants hit back-to-back since August 21, 2019, when Stephen Vogt, who is now a backup catcher for the Diamondbacks and Kevin Pillar, who was traded from to the Colorado Rockies at the trading deadline from the Boston Red Sox turned the trick against the Chicago Cubs at Wrigley Field. Pillar and Vogt each went deep off Yu Darvish in the top of the sixth inning, a game that the Cubs would win 12-11 after scoring two runs in the bottom of the eighth inning.

The Giants increased their lead in the bottom of the sixth inning, as Brandon Belt walked with one out, when to second on a by Daniel Robertson and then Joey Bart narrowly missed his first major-league home run; however, he did settle for his first major-league triple. Mauricio Dubon then tripled in Bart, as he also hit his first major-league triple off the Levis Landing wall in right field.

Daulton Varsho cut the Giants in half, as he hit his first major league home run in the top of the seventh inning off of Trevor Gott. Varsho, the son of former major leaguer Gary Varsho and who is named after the late Darren Daulton, who was a teammate of Varshos father with the Philadelphia Phillies hit the 53rd Splash Hit by an opponent.

Varsho is the first visiting player to have his first MLB homer be a splash hit.

It was the second Splash Hit by an opponent this season, as Shin-Soo Choo of the Texas Rangers hit one into San Francisco Bay off of Jeff Samardzija on August 2. This was the first one hit by a Diamondbacks player since Ender Inciarte hit one off of Yusmeiro Petit on September 9, 2014.

The Diamondbacks cut the Giants lead down to one in the top of the eighth inning, as Eduardo Escobar singled in Ketel Marte from second base, but Sam Selman came on to strikeout Josh Rojas to end the threat.

NOTES: This was the eighth Splash Hit by a Diamondbacks player since the park opened on April 11, 2000. Luis Gonzalez (2), Mark Grace, Miguel Montero and Adam LaRoche (2) and a total of three, as he also hit one for the Pittsburgh Pirates. LaRoche, Carlos Gonzalez of the Colorado Rockies and Carlos Delgado of the New York Mets are tied for the Splash Hits by an opponent with three. Barry Bonds leads the Giants with 35 Splash Hits.

Austin Slater was reinstated from the 10-day injured list and to make room for Slater on the roster, Steven Duggar was optioned to the Alternate Training Site.

Entering the game, batters against Cahill were 7-for-49, a .143 batting average which was the seventh lowest batting average by a Giants starter since the team moved to San Francisco in 1958. Tonight, the Diamondbacks went 2-for-9 against Cahill and opponents are 9-for-58, a .155 clip.

When the Giants hit back-to-back home runs in the bottom of the second and then back-to-back triples in the bottom of the sixth inning, they became just the seventh team since 1974 to hit back-to-back homers and back-to-back triples in the same game (previous: White Sox on July 3, 2018 vs. CIN).

UP NEXT: Johnny Cueto goes to the mound for the Giants on Sunday afternoon, while the Diamondbacks will counter with Alex Young.