Event: Essex Online U150 Championship LIVE

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Opponent Rating Result
Martin Van Tol 13 1 - 0
Purba A Audhora 15 1 - 0
Christopher Willoughby 182 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

470 = (210 + 400 * (3 - 0)) / 3)

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Opponent Rating Result
Peter A Nickals 13 0 - 1
Mae C Catabay 15 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-386 = (28 + 400 * (0 - 2)) / 2)