Event: Ladder 23/24

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Opponent Rating Result
Daniel Phillips 1421 1 - 0
N George 1418 0 - 1
John E Davis 1443 1 - 0
Lee Mundy 1210 1 - 0
James Gray 1209 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1420 = (6701 + 400 * (3 - 2)) / 5)

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