Event: NCCA League Division 3

Opponent Rating Result
Rupert P Martin 1522 0 - 1
Henry Lin 1665 0 - 1
John Stevens 1564 ½ - ½
Edward T King 1641 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1498 = (6392 + 400 * (1 - 2)) / 4)

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