Event: Summer League

Opponent Rating Result
James W Ross 1852 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2252 = (1852 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Michael J McBeth 2008 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2408 = (2008 + 400 * (1 - 0)) / 1)