Event: Division 4

Opponent Rating Result
Reece W Whittington 1630 0 - 1
Cyril D Hill 1585 ½ - ½
Peter J Hickman 1578 0 - 1
Mick Brown 1454 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1362 = (6247 + 400 * (0 - 2)) / 4)

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