The 2017 Pacific Association season was the fifth season of the Pacific Association. There was a four team 78 game schedule. Most series included a three-game series with each team having 39 home games.
The four teams in the league played a 78-game schedule. Each team played 39 games for the first and second half of the season. Each half champion would receive a place in the best-of-one championship game.
To qualify as league leader for hitter, AVG - Minimum of plate appearances of 2.7 per team game. To qualify as league leader for pitcher, ERA - Minimum inning(s) of .8 pitched per team game.
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In 2017, The winner of the first and second half would play a best-of-one championship game. The Sonoma Stompers won the first half with a 28–11 record. The Vallejo Admirals won the second half in a head-to-head tie breaker with the Sonoma Stompers with a 24–15 record. The Stompers hosted the Admirals on September 1.