Event: SCCA Division 1 19/20

Opponent Rating Result
Martin Fogg 174 1 - 0
Luke Hill 184 ½ - ½
Philip J Hutchings 168 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

309 = (526 + 400 * (1 - 0)) / 3)

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Opponent Rating Result
Philip J Hutchings 162 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-238 = (162 + 400 * (0 - 1)) / 1)