BALL SPECIFICATIONS – EFFECTIVE 8/1/20

  • A bowling ball’s oil absorption rate must be more than 2 minutes, 15 seconds for the ball to be approved
  • Elimination of balance holes; bowlers may have up to five holes for gripping purposes and all must be used on every delivery
  • No-thumb bowlers would need to mark by scribe, engraver or tool near the intended center of palm with a plus (+) mark