Last time I looked, the Reds OPS against lefties was quite a bit lower than last season, although still not bad. The OPS against righties was better than last year. Reflected more balance, with overall OPS slightly improved.
Not sure what your stat means.
Is it W-L record where lefty starters got the decision? Or is it all games started by lefties, even where relievers ultimately go the decision?
I assume the former, but don't know.