Jake Arrieta's winning streak ended at 20 games when Patrick Corbin and the struggling Arizona Diamondbacks beat the Chicago Cubs 3-2 on Sunday.
The reigning NL Cy Young Award winner had gone 24 regular-season starts without a loss since Cole Hamels pitched a no-hitter for Philadelphia at Wrigley Field on July 25. Arrieta did lose to the New York Mets in the NL Championship Series last season and was 2-1 in the playoffs.
Arrieta (9-1) lasted five innings this time, allowing three runs and nine hits. He threw 108 pitches and struck out a season-high 12 while walking one.
The Cubs lost for only the second time in 12 games and finished 8-2 on their homestand. Both losses came in starts by Arrieta after they won 23 in a row with him on the mound.
Paul Goldschmidt's RBI single in the fifth inning proved to be the game-winning run. Brad Ziegler pitched the ninth inning for the D-backs, earning his 39th consecutive save.