Event: Division 2

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Opponent Rating Result
Joel Pearce 0 ½ - ½
Leon Smith 1280 1 - 0
Owen Rees 0 0 - 1
Tom Last 0 1 - 0
Tony Golding 1333 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

523 = (2613 + 400 * (2 - 2)) / 5)

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