Welcome to SGS Filton Tornadoes

Enjoy every competitions

Rules of a game

  • The league follows a round-robin format, where each player competes against every other player once.

Rating

  • We are using Elo-based systems (where your rating changes depending on win/loss and the opponent's rating).
  • Points are gained or lost per match (Best of 5 format — winning 3 games means winning the match).
  • New players start with a rating of 1500.
  • The minimum rating is 1400. For example, if a player with a current rating of 1403 loses a match and is supposed to lose 10 points, their new rating will be adjusted to 1400 instead.
  • Formula to update rating:
    • R(new) = R(old) + K x ( S - E )
    • R(old) = current rating
    • K = constant (controls sensitivity; currently is 32)
    • S = match score (1 = win, 0 = loss)
    • E = 1 / ( 1 + 10 x ( (R(opponent) - R(player))/400 ) )