Event: 53rd Cotswold Minor

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Opponent	Rating	Result
Aiden Griffiths	1296	1 - 0
David Smith	1564	½ - ½
Dave Tomlin	1433	1 - 0
Steve R Wilson	1449	0 - 1

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

1536 = (5742 + 400 * (2 - 1)) / 4)