Event: Division 1

Opponent Rating Result
Alexandros N Ethelontis 2096 0 - 1
Iozeph Okosieme 1877 ½ - ½
Neil D Tomkin 1701 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1891 = (5674 + 400 * (1 - 1)) / 3)

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