West Coast League

In 2005 the teams played 42 games. For the 2007 season, this was the first year that the WCL used divisions. They separated the league into two divisions, East and West, based on geographical location. The playoffs worked in an odd way. The top two teams in the standings at the end of the season would playoff a best 2 out of 3 in both divisions. Then, the winners of the sets would playoff in the championship series, also a best 2 out of 3. In 2009, the league expanded the schedule to 48 games, at the same time going to an unbalanced schedule. Since 2012, the West Coast League has scheduled 54 league games for each team (with games against non-league opponents not counted in standings).

In 2010 the league added Longview/Kelso (Cowlitz),[3][4] Washington for the 2010 season, along with Walla Walla, Washington,[5][6] which in turn cause a balanced schedule. The Moses Lake Pirates ceased operations following the 2010 season.

In 2011 the league expanded to Klamath Falls,[7] which in turn caused a 54-game unbalanced schedule. Also, in the Summer of 2011 the Wenatchee Applesox won the East Division Pennant, and the Walla Walla Sweets came in second and beat the Applesox in the Division Playoffs to go on to play the Corvallis Knights where they lost 2 games to 0. In the West Division the Corvallis Knights won the Pennant and the Bend Elks were 8 games behind them but lost 2–0 in the Divisional games.

In 2012, the Wenatchee AppleSox won the East Division after topping the Bellingham Bells in the first round of the playoffs. At the same time, in the West Division the Corvallis Knights defeated the Cowlitz Black Bears. In the league's championship series, the AppleSox beat the Black Bears and captured their fifth league title.

In the 2013 season the league changed from an East/West division format to a North/South division format because of further league expansion, of the Victoria HarbourCats,[8] and the Medford Rogues,[8] which brought the number of teams to 11. Also, in 2013 records were set and matched. Walla Walla Sweets pitcher Sean-Luke Brija matched the league record in saves, with 13 outstanding saves in the 2013 season. It was the first year an expansion team, in their first year, made the playoffs. The Medford Rogues made the playoffs by a tie, and winning their last 3 regular season games but, they lost their Cinderella Story season to the Corvallis Knights, beating them 2 games to nothing in the South Division playoffs. Also, the other expansion team, the Canadian Victoria HarbourCats, set a single game and All-star game attendance record of 4,210 in viewing. Finally, history was made in Kitsap after the last out of the top of the ninth when Spenser Watkins threw a spectacular perfect game, the first in West Coast League history.

In 2014 the Yakima Valley Pippins came on board, giving the WCL their twelfth team. Also, in the 2014 year, because of the expansion of Yakima, the WCL restructured their league format for the 4th time in its history, moving to a 3-division format, with East, West, and South Divisions.[9][10] The playoff format adopted was similar to the MLB format, with only one wild card instead of two. The teams are shown in their respective geographical division in the Team Table below.

The play-off race came down to the last 2 days of league play with a race between Bend and Wenatchee for the first WCL Wild-card spot. Bend edged Wenatchee by just 1 game, causing Wenatchee to miss the playoffs for the first time. Yakima, Bellingham, and Corvallis won their divisions and set the field for the first three-division WCL playoff. The first round playoff pairings were Bellingham vs. Yakima and Corvallis vs. Bend. Both Corvallis and Bellingham won their first 2 games and advanced to the WCL Championship series. Bellingham won both games 2 and 3 of the series, making them the 4th team to ever win the WCL Championship.

In 2015, the West Coast League saw its fifth league champion, the Bend Elks. Kelowna, Bellingham, Bend, and Corvallis advanced to the playoffs, in which Bend swept both Corvallis and Kelowna to capture their first WCL championship.

In the 2015–2016 off-season, the Medford Rogues left the WCL and joined the Great West League. Also, the league announced that the Klamath Falls team would leave the league, with its place taken by a new team based in Gresham, Oregon.[11] On December 4, 2015 the Gresham Baseball Club announced that the team would be named the Gresham GreyWolves.[12]

In 2016, the Victoria HarbourCats set a single-season record for wins with 40, breaking the previous record of 39 (2011 Wenatchee AppleSox). Victoria also broke all three attendance records by having the highest attendance in a single game, season total, and game average. They had 60,466 total fans through the gates, averaging 2,239 a night, with a record 5,133 in one game on June 30 against the Kelowna Falcons.

In the new split-season playoffs format, Victoria won the first half in the North with a 19-game winning streak, and tied Bellingham for the second-half lead, with the Bells holding the tiebreaker by virtue of winning the season series. In the South, the first half was won by the Corvallis Knights, while the second half was won by the Yakima Valley Pippins. Both Corvallis and Bellingham swept their first-round playoff series, setting up a rematch of 2014's WCL Championship Series. The 2016 edition saw Corvallis win a thrilling Game 3 and capture their fourth championship.

• Established in 2008, and named after the West Coast League's inaugural commissioner Jim Dietz.