Respawn to last position trigger when going off track in a race help?

Is there a way for example:

  1. I have my own custom race, its started with say 10 players, one of them gets stuck or goes off the race track, during the race how can I make it so that they can respawn back in?

  2. Is there a script that has respawn markers on track course or something during a race?

Help would be very much appreciated