Event: Division 3

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Opponent Rating Result
Sid McDonald 1403 1 - 0
Kenneth Fowler 1450 0 - 1
Hugo E Brown 1310 ½ - ½
Rich Yates 1250 1 - 0
John Harvey 1357 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1354 = (6770 + 400 * (2 - 2)) / 5)

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