Event: Division Four

Opponent Rating Result
John Grant 1606 0 - 1
Larry Wright 1805 ½ - ½
Nigel Foster 1622 ½ - ½
Paul Furniss 1618 ½ - ½
Peter JR Oliver 1602 0 - 1
Andrew Powell 1503 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1493 = (9756 + 400 * (0 - 2)) / 6)

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