San Diego Padres reliever Mason Miller was dealing once again Wednesday, Oct. 1, striking out five batters over the seventh and eighth innings in the Padres’ 3-0 win over the Chicago Cubs.

The 27-year-old flamethrower acquired by the Padres from the Athletics on trade deadline day really brought the heat on his second strikeout of the day. He sat down the Cubs’ Carson Kelly with a 104.5 mph fastball, which, per MLB, is the fastest pitch ever recorded in the playoffs since pitch tracking began in 2008.

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It was also the fastest pitch Miller has thrown in his career, per the Padres.

Aroldis Chapman had held the record for fastest pitch in the postseason (104.2 mph) since 2010, per MLB.com.

Miller, in his first postseason, struck out five consecutive batters Wednesday before he hit Michael Busch with a pitch. That ended Miller’s run of consecutive strikeouts at eight, after he also struck out the side in the seventh inning in Tuesday’s Game 1.

Wednesday’s victory kept the Padres’ season alive and forces a decisive Game 3 on Thursday.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Tommy Edman is showered with sunflower seeds after hitting a home run during the third inning against the Reds in Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Tommy Edman is showered with sunflower seeds after hitting a home run during the third inning against the Reds in Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Teoscar Hernandez (37) celebrates with teammates Freddie Freeman and Max Muncy after hitting a 3-run home run during the third inning against the Reds in Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Shohei Ohtani celebrates after hitting a home run during the first inning against the Reds during Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Red Sox catcher Carlos Narvaez and relief pitcher Aroldis Chapman celebrate after defeating the Yankees 3-1 in Game 1 at Yankee Stadium.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Austin Wells reacts after being struck out during the eighth inning of Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Yankees manager Aaron Boone takes out pitcher Luke Weaver during the seventh inning of Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Masataka Yoshida celebrates with first base coach José David Flores after hitting a two-run single during the seventh inning of Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Masataka Yoshida hits a two-run single during the seventh inning against the Yankees during Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Jarren Duran is out at first with Yankees pitcher Max Fried covering during the fifth inning of Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Anthony Volpe reacts after hitting a solo home run during the first inning of Game 1 against the Red Sox.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Cubs players celebrate the Game 1 win over the Padres.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Carson Kelly celebrates his home run in the fifth inning of Game 1 against the Cubs.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Cubs catcher Carson Kelly rounds the bases after hitting a solo home run in the fifth inning of Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Seiya Suzuki rounds the bases after hitting a solo home run in the fifth inning of Game 1 against the Padres.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Padres outfielder Jackson Merrill slides into second base for a double in the second inning of Game 1 against the Cubs.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Tigers players celebrate their Game 1 win against the Guardians.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Tigers pitcher Will Vest reacts after recording the final out in Game 1.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Umpires stand for “God Bless America” during Game 1 between the Guardians and Tigers at Progressive Field.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Tigers pitcher Tarik Skubal is congratulated by Javier Báez before being relieved in the eighth inning of Game 1 against the Guardians.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Tigers outfielder Kerry Carpenter celebrates after hitting a double in Game 1 against the Guardians.

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Must-see action and passion from MLB playoffs’ 2025 Wild Card Series

Guardians manager Stephen Vogt hugs Tigers skipper A.J. Hinch before Game 1 at Progressive Field.

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This article originally appeared on USA TODAY: Mason Miller fastest pitch ever in MLB playoffs: Watch