Should I get a sports massage 24 hours before my event?

Yes, you can. However, do let your massage therapist know so that he or she can avoid going full on with the massage. Too intensive a massage will result in your muscles being too relaxed. This effect muscle recruitment later during your event. You will experience a lack of power and slower firing of the muscles. A full deep sports massage is fine 48 hours before your event.

For pre-event massage, like an hour before the event is usually light and aims to limber up the muscles. Not relax it as in the usual sports massage sessions.