Standings

How Rankings Work

1. 01

   What Elo Is

   Elo is the rating system behind chess rankings, adapted to Chase Tag®. Every team carries one number: win and it rises, lose and it falls, and the size of the move depends on who you played, the final score and the type of event. Every team enters on the same starting rating, and the rating is updated after each individual match, not just the final result.

2. 02

   How the Points Are Calculated

   The gap between the two ratings sets each team's expected score, from 0 to 1: an even match is 0.5, a 200-point favourite is about 0.76. The result (1 for a win, 0 for a loss) minus that expectation, multiplied by the weight of the match, moves from the loser to the winner. The match weight is 16; the type of event and the final score adjust the size of the move.

   expected = 1 / (1 + 10^{(opponent − you) / 400})new rating = rating + K × (result − expected)K = 16, adjusted for event type and final score
3. 03

   Why Upsets Pay

   A team on 1050, at a match weight of 16, gains about 10 points for beating a 1150 team and about 6 for beating a 950 team, and loses about 10 if that 950 team wins. Over a season, every rating settles on the team's real strength.

4. 04

   Qualify for Worlds

   Ratings carry across the season into one leaderboard per division, Open and Women's. The top-ranked teams earn their place at the WCT™ World Championships. No wild cards.

Ratings are recalculated after each event, match by match.