SAN DIEGO — The 2025 Arizona Diamondbacks were a below .500 baseball team when all was said and done on the final day of regular season on Sunday.

The D-backs dropped their season finale to the San Diego Padres, 12-4, to unceremoniously fall to 80-82. It is the first season in which the Diamondbacks finished below .500 since 2022.

They were outscored 17-5 over the final two contests, which were meaningless in terms of the playoff picture, and earned a +6 run differential over 162 games.

Arizona was in the thick of the National League Wild Card race down to the final weekend, but five straight losses ended a disappointing season for a team with championship aspirations coming in. The Diamondbacks remained alive as of Friday evening, but a loss in San Diego paired with a Cincinnati Reds victory ended any hopes to reach the postseason.

The Reds clinched the final postseason spot on Sunday with an 83-79 record and will play the Los Angeles Dodgers in the NL Wild Card Series. Last year, the Diamondbacks missed the playoffs with 89 wins.

“Frustrated and probably beyond disappointed,” manager Torey Lovullo said. “You just start to reflect on what’s going on and how close we came.

“These guys gave everything they had, that is perfectly clear to me. … There’s a thousand things that went on during the course of the year that we could have done better to help us win baseball games.”

Geraldo Perdomo delivers 100th RBI

In Sunday’s finale, Ketel Marte hit his 28th home run of the season, while starting pitcher Brandon Pfaadt was charged with seven earned runs over four innings of work.

Geraldo Perdomo needed an RBI to reach 100 for the season, and Arizona dropped him to third in the lineup for more chances with runners on base. In the ninth inning, with the Diamondbacks’ bench all leaning on the railing to watch, Perdomo bounced a ball to the right side with a runner on third base, scoring the run on an error.

With less than two outs, the RBI stood, and Perdomo was greeted back in the dugout with hugs from teammates for the accomplishment. He hit his 20th home run on Saturday.

“It feels good, honestly, I don’t wanna lie,” Perdomo said of reaching 100. “I’m just more proud and happy because my teammates were cheering for it.”

Marte added:  ”That’s awesome. I’m always having a good year and I’ve never got 100. I’m not surprised. He worked so hard  and he’s a guy who likes to learn.”

Jordan Lawlar went two-for-four with a double, Alek Thomas hit two doubles and Jorge Barrosa reached base three times (working his first two career walks).

Diamondbacks cap season of extreme highs and lows

The D-backs managed a top six-scoring offense in 2025 despite injuries and trades and a bottom-eight team ERA, a similar issue that plagued the team last year.

This season has been one of extreme highs and lows on a day-to-day basis (even inning-to-inning basis), which has led to a failure to make many strides over .500.

Low: Injuries derailed the bullpen, while prized free agent addition Corbin Burnes did not pitch past May since he needed Tommy John surgery.

High: The D-backs received star-caliber production from Geraldo Perdomo, Corbin Carroll and Ketel Marte, as well as Eugenio Suarez before the trade deadline.

Low: The D-backs led the league with 29 blown saves.

High: Arizona went on a 29-19 run to put itself in position to make the postseason.

The offseason begins with various questions about what the 2026 club will look like. Zac Gallen is a free agent, while Burnes, A.J. Puk, Justin Martinez and Lourdes Gurriel Jr. will not be ready to start next season while recovering from injuries. How will the front office build around the core of Perdomo, Carroll, Marte and Gabriel Moreno, and what will the rotation look like?

The playoffs begin on Tuesday, and the Diamondbacks will have time to evaluate their position before trades, opt-outs, qualifying offers and free agency all begin periodically after the World Series.