Event: NCCA League Division 4

Opponent Rating Result
Aidan Palmer 1500 0 - 1
Carl Purkiss 1557 1 - 0
Charlie Giggle 1511 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1523 = (4568 + 400 * (1 - 1)) / 3)

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