Event: Division 2

Opponent Rating Result
Mohammad Abdulhamid 1733 0 - 1
Paul G Day 1710 0 - 1
Kenneth L Marsden 1369 ½ - ½
Martin Bond 1046 1 - 0
Richard Zaidman 1644 1 - 0
Ellis Howard 1649 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1459 = (9151 + 400 * (2 - 3)) / 6)

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