Event: Leon Garfield Rapid-Play Cup

Opponent Rating Result
Leon A Garfield 1283 1 - 0
Colin G Gregory 1416 1 - 0
James Cole 1506 1 - 0
Clive J Le Baigue 1398 0 - 1
John L Clarke 1362 1 - 0
David Sawyer 1200 1 - 0
Colin G Gregory 1451 1 - 0
James Cole 1544 ½ - ½
Lalit Sunil 1200 1 - 0
Peter McGill 1635 0 - 1
Nico Roestorff 1854 0 - 1
Lalit Sunil 1562 ½ - ½
Asher Sunil 1435 1 - 0
Peter McGill 1597 1 - 0
John L Clarke 1350 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1640 = (21793 + 400 * (10 - 3)) / 15)

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