Event: Division 2

Opponent Rating Result
Petru Floresc 165 0 - 1
Reinhold H Heinlein 184 1 - 0
Petru Floresc 183 0 - 1
William G Armstrong 149 ½ - ½
Karl Lockett 157 0 - 1
John Y Yee 135 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

29 = (973 + 400 * (1 - 3)) / 6)

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