Event: 6-Board Division 2

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Opponent	Rating	Result
Kevin Chilvers	1677	½ - ½
Graeme C Reid	1413	½ - ½
John Burton	1250	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1580 = (4340 + 400 * (1 - 0)) / 3)