Event: NCCA League Division 1

Opponent Rating Result
Jeff R Dawson 1912 ½ - ½
Hazel Bowler 1803 1 - 0
Vivash Samarakoon 2137 ½ - ½
Philip R Bonafont 2107 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1990 = (7959 + 400 * (1 - 1)) / 4)

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