Go early and do some test shots. Bowling in held in a lighting control envo where the lights are mostly constant so you just need to do some test shot and adjust to your liking and shoot away. Shooting at f4 is OK for me as the depth of field is not so shallow due to the far distance from camera to subject, but that's just me. Pre focusing will help as bowlers will likely be at more of less the same place at the start and end of the throw.
Last time I shot bowling (company event) did a test shot using custom WB, f4 on a 80-200 (yeap, the old and heavy one) and shot at 1/250 with pre focus.