Event: Division Four

Opponent Rating Result
Lee E Collier 1729 ½ - ½
Aaron Norton 1544 1 - 0
Nigel Foster 1568 ½ - ½
Chaniru Ranasinghe 1539 1 - 0
Steve Alcock 1473 ½ - ½
Dominic P Heining 1645 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1716 = (9498 + 400 * (2 - 0)) / 6)

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