Why are starting stalls used on the Flat and a Tape over Jumps?
As races are shorter on the Flat, it’s important that the participants begin in as straight a line as possible. For longer races (and that includes some long Flat races as well as all Jump races), riders often want to take up a tactical position that they believe offers their horse its best chance to perform well. For some, that might mean going out in front, whilst for others it might mean taking a lead from another horse or dropping in at the back of the field. The ground would often be too soft to move the Stalls around on at a jumps meeting.