Event: Essex Online U150 Championship LIVE

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Opponent Rating Result
Andrew P Willoughby 13 0 - 1
Purba A Audhora 15 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

14 = (28 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
Lakshan Siddharth 13 1 - 0(def)
Anup Sinha 15 0 - 1
Charlotte Willoughby 182 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-302 = (197 + 400 * (0 - 2)) / 2)