Event: 53rd Cotswold Open

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Opponent	Rating	Result
Matthew Timbrell	1825	½ - ½
Ethan Pang	1750	1 - 0
Ian J Clarke	1965	1 - 0
Tom Brown	2214	½ - ½

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

2139 = (7754 + 400 * (2 - 0)) / 4)