Event: Cotswold Open

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Opponent	Rating	Result
John Jenkins	2028	1 - 0
Bruce L Baer	2093	0 - 1
Joe Varley	2024	0 - 1
Joseph D Turner	1993	1 - 0
Rohan Pal	2029	0 - 1

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

1953 = (10167 + 400 * (2 - 3)) / 5)