Event: Division One

Opponent Rating Result
Jonathon Vaughan 2067 1 - 0
Julian H Summerfield 1838 1 - 0
Alexander Iskauskas 1957 0 - 1
Jonathan Dale 1919 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2145 = (7781 + 400 * (3 - 1)) / 4)

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