Event: Division Five

Opponent Rating Result
Jacob Barker 1581 0 - 1
Leslie Chan 1464 0 - 1
Penny A Wood 1468 ½ - ½
Paul Bignall 1458 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1193 = (5971 + 400 * (0 - 3)) / 4)

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