Event: Summer League Division 3

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Opponent	Rating	Result
Les P Day	1577	0 - 1
John A Clark	1758	0 - 1
Lance Kennedy	0	½ - ½
Peter Cooper	1680	0 - 1
Eric McKenna	1399	½ - ½
John J M Richards	0	1 - 0
James Alex Brown	1529	0 - 1
Talakalukoppa Amarnath	1427	0 - 1

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

971 = (9370 + 400 * (1 - 5)) / 8)