Event: R Division

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Opponent	Rating	Result
Ross Benjamin Evans	1400	0 - 1
(John) Jack Donegan	1384	0 - 1
Edward Correa	1343	½ - ½
Edward Correa	1343	0 - 1
Ross Benjamin Evans	1400	1 - 0
(John) Jack Donegan	1384	0 - 1

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

1176 = (8254 + 400 * (1 - 4)) / 6)