Event: Walker Shield

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Opponent Rating Result
Felix Ladd 1000 1 - 0
Asher Sunil 996 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1398 = (1996 + 400 * (2 - 0)) / 2)

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Opponent Rating Result
Christopher Exton 1117 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1517 = (1117 + 400 * (1 - 0)) / 1)