Event: UK Chess Challenge - Stockton Heath

Opponent Rating Result
Lincoln Chan 514 1 - 0
Oliver Ducker 889 1 - 0
Yui Hang Tsang 870 1 - 0
Hannah Boyall 1296 0 - 1
Oliver Horton 1109 1 - 0
Ivan Elisseev-Siuda 1095 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1096 = (5773 + 400 * (4 - 2)) / 6)

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