Event: Division 3

Opponent Rating Result
Graham J Gibson 1627 ½ - ½
Jonathan Ellinsfield 1532 1 - 0
Keith W Roper 1655 0 - 1
Nader Nader 1500 1 - 0
Mehdi Letlat 1400 0 - 1
Charles Steele 1245 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1493 = (8959 + 400 * (2 - 2)) / 6)

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