SAN DIEGO (Interstat) — The San Diego Padres rallied from deficits twice Tuesday night, scoring in the bottom of the ninth on a walk-off sacrifice fly by Xander Bogaerts to beat the Colorado Rockies 8-7 at PETCO Park.

The victory lifted San Diego to 54-53 on the season, while Colorado dropped to 42-66. Attendance was 42,433, and the game lasted 3 hours, 21 minutes.

Mason Miller earned the win in relief, pitching a scoreless eighth inning with three strikeouts to improve to 3-1. Jimmy Herget took the loss for Colorado, falling to 0-4 after allowing the winning run in the ninth.

The Rockies struck first with a four-run third inning. Willi Castro hit a solo home run to right-center, his 11th of the season, cutting San Diego’s early lead to 2-1. Edouard Julien followed with a double, and after a strikeout, Jake McCarthy singled to drive in Julien, tying the score 2-2. Mickey Moniak then launched his 17th homer of the year, a two-run shot to right field, giving Colorado a 4-2 advantage.

San Diego had taken a 2-0 lead in the second inning. After a walk to Gavin Sheets, Xander Bogaerts singled, and Luis Campusano doubled to score Sheets. Fernando Tatis Jr. then singled to bring home Bogaerts, but Campusano was thrown out at the plate on the play.

The Padres chipped away in the fifth. Tatis Jr. singled, Jake Cronenworth reached on a fielding error by Julien, and Manny Machado singled to score Tatis Jr., making it 4-3. A double play ended the inning with the Padres still trailing by one.

In the sixth, San Diego tied the game. Sheets walked, Bogaerts walked, and Campusano singled to load the bases. Tatis Jr. singled to left field, scoring Sheets and knotting the score at 4-4. Another double play ended the rally.

Colorado took the lead again in the seventh. Castro walked, Julien flied out, and Ezequiel Tovar doubled to left, scoring Castro for a 5-4 Rockies advantage. McCarthy grounded out, moving Tovar to third, and Moniak doubled to bring home Tovar, making it 6-4.

But San Diego answered in the bottom of the seventh. Machado walked, Ty France singled, and Jackson Merrill singled to right, scoring Machado and cutting the deficit to 6-5. Luis Rengifo sacrificed, moving runners to second and third. Freddy Fermin then reached on a fielding error by third baseman Castro, allowing France to score and tying the game 6-6.

Colorado regained the lead in the eighth. Cole Carrigg singled, Troy Johnston singled, and after a strikeout, Tyler Freeman reached on an error by shortstop Bogaerts, loading the bases. Tovar walked, forcing in Carrigg for a 7-6 Rockies lead.

San Diego tied it again in the bottom of the eighth. Tatis Jr. singled, Cronenworth forced him out at second, and Machado singled sharply to right field, scoring Cronenworth and tying the game 7-7. McCarthy’s fielding error allowed Machado to take second. Ty France struck out, and Machado was caught stealing third to end the inning.

The game remained tied into the ninth. Colorado went down in order, with Moniak, Hunter Goodman and TJ Rumfield all striking out against Padres pitching.

In the bottom of the ninth, Merrill singled to right field. Rengifo walked, and pinch-hitter Sung-Mun Song walked to load the bases with no outs. Bogaerts then hit a sacrifice fly to center field, scoring Merrill for the walk-off victory.

Key performances included Merrill’s 3-for-5 day with an RBI, Campusano’s two hits and an RBI, and Tatis Jr.’s three hits and an RBI. For Colorado, Moniak had two hits, including a double and a home run, with three RBIs. Tovar doubled and drove in a run.

Padres starter Michael King went six innings, allowing six hits and four earned runs with six strikeouts. Rockies starter was not listed in the provided information.

Colorado had won two of its previous three games entering Tuesday but fell in its fourth straight series opener. San Diego won for the fourth time in five games.

Interstat’s game simulator had projected a final score of San Diego 4, Colorado 3. Interstat’s ELO system gave the Padres a 70.20 percent probability to win. San Diego was installed as a pregame favorite with a spread of -1.5. The total of 15 runs went under the over-under line of 7.5.