In the past we have had to cancel a couple races and both times it was $200 fee basically and the rest went to the next race. I tried to read through and see if you answered this question but couldn't find anything. Did you notify score that you werent making the race before the race?
I had a similar issue about 10 years ago, for the San Felipe 250. We blewup our motor the day before the race. I spoke with Sal after the drivers meeting, he said I could use the entry fee towards the Baja 500 less $250.00 administration fees. I was surprised when I went to pay for the 500 that there was a credit on file. Truthfully didn't think it would happen.