Event: NCCA League Division 3

Opponent Rating Result
William Bradley 1901 1 - 0
David M Owen 1743 ½ - ½
Martin Griffin 1506 ½ - ½
John R Wickham 1651 0 - 1
Martin Griffin 1524 ½ - ½
Folkert Schoustra 1587 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1719 = (9912 + 400 * (2 - 1)) / 6)

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