He sorta attacked them all while they were busy fighting each other, so it wasnt exactly a straight up fight. Also it didnt have time to come to a conclusion if I remember properly, those lil' guys stepped in. Henshaw, Paralax, and most of the top tier guys from Sinestro's side didnt get involved either if memory serves.
Personally I think it'd be too much for him. He'd be fighting a LOT of speedsters and a lot of heavy hitters all at once.