Event: The Chess Centre - Ilkley (Tuesdays) Junior League

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Opponent Rating Result
James Pitt 905 ½ - ½
James Pitt 905 0 - 1
Ethan Battye 704 0 - 1
Art Whittington 471 1 - 0
Art Whittington 465 1 - 0
Ethan Battye 796 0 - 1
Roald Weston 552 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

628 = (4798 + 400 * (2 - 3)) / 7)

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