Clockwork would probably catch it the fastest since he can freeze & slow down time. XLR8 nor Fasttrack move faster than time so Clockwork could catch it. XLR8 is probably faster than Fasttrack and I've seen fan-based calcs saying he could move at hypersonic speeds. So XLR8 could probably catch one. Even with his feats such as dodging lasers and lightning bolts would give him the potential to catch one.
Fasttrack's main feat that I could think of was keeping up with a high speed missile & saving two people from a point blank nuclear explosion, so he could possibly catch it.