Event: Division 1

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Opponent Rating Result
Jonathan White 1986 0 - 1
David Ben-Nathan 1873 ½ - ½
Mark Winterbotham 1871 ½ - ½
James M Robinson 1855 ½ - ½
Alexandros N Ethelontis 2056 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1768 = (9641 + 400 * (0 - 2)) / 5)

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Opponent Rating Result
Alex Bourke 1844 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1444 = (1844 + 400 * (0 - 1)) / 1)