Event: Weymouth U1850 2023

Opponent Rating Result
David C Clayton 1501 ½ - ½
Chris Carpenter 1561 ½ - ½
John R Bowley 1611 1 - 0
Tim F Woodward 1817 1 - 0
Brendan O'Gorman 1867 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1831 = (8357 + 400 * (2 - 0)) / 5)

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