Event: Walker Shield

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Opponent Rating Result
Nik Loginov 1436 0 - 1
Robert Cronin 1405 1 - 0
Bob Wallace 1387 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1543 = (4228 + 400 * (2 - 1)) / 3)

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Opponent Rating Result
Harrison Pitchford 1200 1 - 0
Lawrence Nash 1376 0 - 1
Martin Jordan 1180 0 - 1
Don Richards 1381 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1184 = (5137 + 400 * (1 - 2)) / 4)