Event: D&DCL Div 2

Opponent Rating Result
Paul Kelman 1645 ½ - ½
Andrew Townsend 1728 0 - 1
Dylan Meyer 1675 ½ - ½
Daniel Hardman 1675 0 - 1
J Martin Gibson 1128 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1490 = (7851 + 400 * (1 - 2)) / 5)

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