Event: Ladder Tournament

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Opponent Rating Result
Daniel Jennings 1974 1 - 0
Neville T Rowden 1284 1 - 0
Roger Beckett 1658 0 - 1
David Websdale 1449 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1591 = (6365 + 400 * (2 - 2)) / 4)

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