Event: Mini League

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Opponent Rating Result
Jonathon Day 1520 0 - 1
Stephen Firth 1450 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1485 = (2970 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
Ian Carrigan 1517 0 - 1
Tom Devlin 1502 1 - 0
Michell Rosamonte 1454 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1358 = (4473 + 400 * (1 - 2)) / 3)