WEST SACRAMENTO – The Athletics have been on a mission to ruin other teams’ seasons over the final month of the season, and they’re certainly playing a major role in making a serious dent in the dwindling postseason hopes of the division-rival Mariners. Opening up a three-game series against a desperate Seattle squad on Friday night, the A’s played spoiler again in a 6-5 victory in 10 innings that ended with a walk-off two-run home run by Donovan Walton, keeping the Mariners six games back of first place in the AL West and sinking them to six games back of the third Wild Card. The A’s have made life miserable for the Mariners this month, now 4-1 against them in five games. Seattle is 4-1 against all other opponents so far in September. Friday’s win was the exact type of victory that brings valuable experience for the many young players on this A’s roster against a team fighting for its playoff life. Each time the Mariners gained any sort of momentum, the A’s answered right back. “There’s a lot that happened in this game to unpack,” manager Mark Kotsay said. Let’s try to unpack that here with key moments and performances: **Bolte makes more history** It has been a pretty special week for Henry Bolte. After becoming the first A’s player to homer and steal at least three bases in a game since Rickey Henderson in 1991 on Monday, the rookie outfielder made more history Friday. Leading off the bottom of the first with a single off George Kirby, Bolte wasted no time dashing for second base on the very next pitch to swipe his 20th bag of the year, becoming just the third rookie in A’s history to notch 10 homers and 20 steals in a season. The other two: Mitchell Page (1977) and Ed Charles (1962). Like all aspects of his game, Bolte’s baserunning has evolved over time this season. Statistically, he is arguably the fastest man in baseball with an average sprint speed of 30.5 feet per second, which leads all Major League players. Early into his Major League career, however, Bolte struggled to translate that to stolen bases. Since the start of August, Bolte has figured it out, racking up eight stolen bases while only getting caught stealing once.
