Although not used in rating calculations directly, o!TR does keep track of match costs for use in other statistics, such as gauging performance across tournaments. The formula is as follows.
Formula
The match cost formula is inspired by Bathbot’s formula, simplified to remove factors that are not relevant for our purposes. For each map played, each player receives a map score between
These map scores are then averaged together and multiplied by a bonus factor for playing more of the match, specifically
Thus, match cost values will range from
Note
Some other match cost formulas include bonus factors for playing in tiebreaker or playing a variety of different mods during a match. We do not include such factors so that our formula primarily reflects relative performance rather than contribution towards winning. In our formula, the winner of a 1v1 match will always have a higher match cost, even if they won their maps by much smaller margins.