Event: Ilkley Chess Club Championship

Opponent Rating Result
Lee Crawford 147 ½ - ½
Martin Hawkins 0 1 - 0
John Link 102 0 - 1
Bill Tait 133 1 - 0
Marc Turu 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

156 = (382 + 400 * (2 - 1)) / 5)

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