Using the future in a clause of time, instead of the present tense
I'll see you when I shall come back.
I'll see you when I come back.
If the verb in the main clause is in the future, the verb in the time clause must be in the present tense
Rules to Play Down Hill Skiing
In all forms of Downhill, both at a local youth level as well as the higher FIS international level, racers are allowed extensive preparation for the race, which includes daily course inspection and discussion with their coaches and teammates as well as several practice runs before the actual race. Racers do not make any unnecessary turns while on the course, and try to do everything they can to maintain the most aerodynamic position while negotiating turns and jumps.Unlike Slalom and Giant Slalom, where racers have two combined times, in the Downhill, the race is a single run. Times are typically between 130 (1 minute, 30 seconds) and 230 for World Cup courses and must be over 1 minute in length to meet international minimum standards. Tenths and hundredths and, occasionally, thousandths of seconds count World Cup races and Olympic medals have sometimes been decided by as little as one or two hundredths of a second, and ties are not unheard of.