Event: U1650R summer league

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Opponent	Rating	Result
Sunil Vasistha	1290	1 - 0
Ishaq Uddin	1539	0 - 1
Nigel White	1414	1 - 0
Ralph McHugh	1254	1 - 0
Sunil Vasistha	1290	1 - 0
Ishaq Uddin	1539	1 - 0
John V Jestico	1422	0 - 1
Ralph McHugh	1254	1 - 0

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

1575 = (11002 + 400 * (6 - 2)) / 8)