Event: Division 4

Opponent Rating Result
Trevor Reece 1318 1 - 0
Mike Whatson 0 0 - 1
John Hodges 1345 ½ - ½
Paul Davies 1518 1 - 0
David Collinson 1287 1 - 0
Paul Davies 1491 1 - 0
David Collinson 1292 1 - 0
Penny A Wood 1476 ½ - ½
William Morris 1671 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1444 = (11398 + 400 * (5 - 1)) / 9)

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