Event: Division Two

Opponent Rating Result
Ian Ellis 1705 0 - 1
Chris W Pitt 1600 1 - 0
Iqbal S Dhesi 1690 1 - 0
Joe Kadar 1693 ½ - ½
Lukasz Marcin Walijewski 1751 ½ - ½
Steve Alcock 1538 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1730 = (9977 + 400 * (2 - 1)) / 6)

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