2018 Arizona Diamondbacks season

The 2018 Arizona Diamondbacks season was the franchise's 20th season in Major League Baseball and their 20th season at Chase Field in Phoenix, Arizona as members of the National League West. They were managed by Torey Lovullo in his second season with the Diamondbacks.

The Diamondbacks began the regular season on March 29 against the Colorado Rockies and finished the season on September 30 against the San Diego Padres. The D-backs were in first place in the National League West on April 1, May 1, July 1, August 1 and September 1, but missed the playoffs after a September collapse.

The Diamondbacks started the season with nine consecutive series wins, the first National League team to do so since the 1907 Cubs. On July 7, the D-backs broke the franchise record for runs scored in a single game when they beat the Padres 20-5.

Transactions
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Regular season
In 2018, the Diamondbacks introduced a bullpen car, making them the first MLB team to use one since the Milwaukee Brewers in 1995.

Game log

 * Legend:      = Win       = Loss       = Postponement Bold = Diamondbacks team member
 * Legend:      = Win       = Loss       = Postponement Bold = Diamondbacks team member

Batting
Note: G = Games played; AB = At bats; R = Runs; H = Hits; 2B = Doubles; 3B = Triples; HR = Home runs; RBI = Runs batted in; SB = Stolen bases; BB = Walks; AVG = Batting average; SLG = Slugging average Source:

Pitching
Note: W = Wins; L = Losses; ERA = Earned run average; G = Games pitched; GS = Games started; SV = Saves; IP = Innings pitched; H = Hits allowed; R = Runs allowed; ER = Earned runs allowed; BB = Walks allowed; SO = Strikeouts Source: