In the last 30 days against left-handed pitching the 2 best lineups in baseball have been the Chicago Cubs and the Arizona Diamondbacks. In that span the Cubs sit first in wOBA with a 149 wRC+ and a .907 OPS. Arizona sits 2nd in that sample with the 2nd best wOBA, a 129 wRC+, and an .837 OPS. Both teams will face southpaw starters in Wednesday’s matchup.

Matthew Boyd is the scheduled starter for Chicago Wednesday. Boyd has really struggled so far in August, posting a 6.12 ERA in his first 25 innings this month. The left-hander has just 11 strikeouts and 8 home runs allowed in that span. On the season his 4.15 ERA is shadowed by a 5.01 xERA and his 9.8%-barrel rate ranks 11th percentile.

Eduardo Rodriguez is the scheduled starter for the Diamondbacks in this game. E-ROD enters play with a 2.61 ERA through his first 155 innings pitched this season. Despite that strong ERA, his xERA sits nearly 2 full runs higher at 4.59. His last 3 starts have resulted in strong output, but the Cubs have been purely dominant against lefties of late. I favor the over on the posted game total in Wednesday’s game between Arizona and Chicago.

Chicago Cubs vs Arizona Diamondbacks prediction: Over 8.5 (-118) available at time of publishing. Playable to over 9 +100 or better.