Event: Division Three

Opponent Rating Result
Jim A Gillespie 1459 0 - 1
T Giles Stanton 1523 1 - 0
Alan T Woollaston 1625 0 - 1
Derek Green 1606 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1553 = (6213 + 400 * (2 - 2)) / 4)

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