Hello Huw,
Thank you for your questions on the Thistle Nationals. TLE refers to Time Limit Expired. I will get clarification on Retired, I see in the RRS that only RAF exists, that must be what the class means.
Re the math for DNF, RAF and TLE, I have set those codes to be manual entry. Yes, I agree with you, it reads as if the number could change for each race.
The Thistles have a three round-robin races to decide who sails in the Championship and Presidents divisions.
The Championship boats are taking the results from all seven races (including the qualifying races). The Presidents Division boats are excluding the qualifying races, so I will set up two files to handle the different discard rules.
Thank you. Selby Winkler