Basic deal is you run against your existing class record or minimum. Your speed is calculated as a percentage of the record:
Your speed
----------- x 200 = points
Record/Min
If you set a record you receive 200 points +25 bonus points + 1 point for each FULL mph over the old record. The trick is to rack up the 1 pointers. Your point standing determines your starting position at the next lakes meet. If two entries set a record in the same class at a given meet the fastest receives all the bonus points, the other gets a flat 200 points.
Real simple,
Dan