Event: Division 4

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Opponent	Rating	Result
Paul Davies	1497	½ - ½
David M Cotterell	1545	0 - 1
David M Cotterell	1545	0 - 1
Trevor Reece	1326	1 - 0
Penny A Wood	1476	1 - 0
Richard Buxton	1473	0 - 1
Trevor Reece	1328	1 - 0
Patrick Eaton	1365	0 - 1

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

1394 = (11555 + 400 * (3 - 4)) / 8)