Event: Spring Swiss

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Opponent Rating Result
Carl Purkiss 1565 0 - 1
Merlin Perrow 1343 ½ - ½
Heather Enid Walker 1244 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1117 = (4152 + 400 * (0 - 2)) / 3)

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