Every day offers another chance for Mookie Betts to add his name to a different part of baseball's record books. On Saturday, he didn't waste the opportunity.

The Boston Red Sox outfielder laced his 40th double of 2018 on Saturday, marking the fourth straight season that he's reached the mark. When he stopped at second base in the third inning, it made a little baseball history, as Betts became the only player ever to have recorded at least 40 doubles and 20 stolen bases in four consecutive seasons, according to Red Sox Notes and Elias Sports.

Additionally, Betts became the second Red Sox player to have produced at least four straight 40-double campaigns, joining Wade Boggs, who did it in seven consecutive seasons from 1985-91.

Betts has been a machine in both categories since arriving in Boston partway through the 2014 season. He's put up 40-20 campaigns in each of his four full years with the Red Sox, and his production has steadily increased each year of his career.

Year Gm. Doubles Steals 2014 52 12 7 2015 145 42 21 2016 158 42 26 2017 153 46 26 2018* 122 40 27

*Through Saturday

Although he's the first to have consecutive seasons of 40 doubles and 20 steals, Betts is now the seventh player with at least four such seasons over the course of his career; Tris Speaker, Ed Delahanty, and Jimmy Rollins all produced four non-consecutive 40-20 seasons. Hall of Famer Nap Lajoie and former Phillies star Bobby Abreu hold the major-league record, having tallied seven 40-20 seasons over the course of their respective careers, according to Baseball-Reference.

The 25-year-old Betts, who entered play Saturday sporting a major-league best .339 average, now sits eight doubles behind Houston's Alex Bregman for the MLB lead. His 27 steals, meanwhile, rank fifth in the AL.