Event: A Division

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Opponent Rating Result
Kevin J Wilson 1944 1 - 0
Nicholas Webb 1888 0 - 1
Peter Harker 1725 1 - 0
Paul Weightman 1570 0 - 1
Ray Pallister 1601 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1826 = (8728 + 400 * (3 - 2)) / 5)

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Opponent Rating Result
Iain Mellis 1555 1 - 0
Stephen Halliday 1600 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1978 = (3155 + 400 * (2 - 0)) / 2)