Handicap is a way of giving an advantage to a competition participant based on previous results. Handicap can also be used to equalize the capabilities of weaker participants. The system allows configuring this parameter for each stage of the tournament. The handicap will be taken into account in statistics and place distribution.
On the tournament member page, you can open the stage settings (the gear icon):
Clicking it opens the stage editing window for this member:
Currently, a handicap can be specified only for points in a round-robin tournament.