From the rules:

4.3.1 OLC Classic Course
After the flight, a departure point, up to five turn points and a finish point are positioned on the recorded flight path in such a way that the raw point score, from the departure point round the turn points to the finish point, is a great as possible and the departure altitude is no more than 1000m above the finish altitude.

My flight was split into 6 segments, it's just that the first three were really long and the last three really short. Breaking a straight line into segments doesn't make it longer.