2015 Pacific Association season

The 2015 Pacific Association season was the third season of the Pacific Association. There was a four team 77 game schedule. Most series included a three-game series with each team having 39 home games. The Pittsburg Mettle became the Pittsburg Diamonds for the 2015 season.

The San Rafael Pacifics entered the season as defending champions, having won both halves of the 2014 Pacific Association season.

The playoffs concluded on August 31, with the San Rafael Pacifics defeating the Sonoma Stompers 4–3 in the league's 2015 championship game.

Team and rule changes
The four teams in the league played a 77-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.

In 2015, the Sonoma Stompers hired Ben Lindbergh and Sam Miller to advise the team using their 'sabermetrics' theory of player management. They went on to write a book about their experience, called 'The Only Rule Is It Has to Work'.

In June, Sonoma Stompers' pitcher Sean Conroy became baseball's first openly gay professional player. On the Stompers' pride night, Conroy threw a complete game shutout win.

In July, the San Rafael Pacifics used three cameras stationed at different points around the ballpark, and used a robo umpire for the strike zone. Eric Byrnes would then announce balls and strikes.

Regular season standings
as of August 31, 2015


 * y – Clinched division
 * x – Clinched playoff spot
 * e – Eliminated from playoff contention

Pitching
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.

Format
In 2015, The winner of the first and second half played a best-of-one championship game. The Sonoma Stompers won the first half with a 26–11 record. The San Rafael Pacifics won the second half with a 29–11 record. The Pacifics hosted the Stompers on August 31.

Notable players
Former Major League Baseball players who played in the Pacific Association in 2015
 * Jose Canseco (Pittsburg), (Sonoma)
 * Aaron Miles (Pittsburg)
 * Tony Phillips (Pittsburg)
 * Tony Torcato (Pittsburg)

Other notable players who played in the Pacific Association in 2015
 * Sean Conroy (Sonoma)
 * Fehlandt Lentini (Sonoma)
 * P. J. Phillips (Vallejo)