Event: Division 4A

Opponent Rating Result
John D Robinson 1585 1 - 0
Reuben Leonard 1488 1 - 0
Samson Main 1882 ½ - ½
Robert Jr Hawkins 1485 1 - 0
Jack Giltrap 1382 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1884 = (7822 + 400 * (4 - 0)) / 5)

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