Event: Whittlesford (Open)

Opponent Rating Result
Jaden Jermy 2058 0 - 1
Ritwik C Chauhan 1780 1 - 0
Ian D Thompson 2215 0 - 1
Jane Richmond 2200 ½ - ½
Simeon Bott 1960 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1883 = (10213 + 400 * (1 - 3)) / 5)

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