Event: League Championship

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Opponent Rating Result
David W Shaw 150 0 - 1
Carl Heald 160 1 - 0
David Atkinson 0 1 - 0
Nick Jameson 135 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

111 = (445 + 400 * (2 - 2)) / 4)

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