Event: Summer Online League - Swiss

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Opponent Rating Result
Arran Airlie 0 1 - 0
Jon AN Lawrance 0 1 - 0
Charlie Giles 0 0 - 1
David B Graham 0 ½ - ½
Adrian O Pickersgill 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

160 = (0 + 400 * (3 - 1)) / 5)

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