Event: President's Cup

Opponent Rating Result
Sally Upperton 1238 1 - 0
Stephen Ashworth 1687 1 - 0
Luke Glinton 1556 ½ - ½
Bowen Chen 1316 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1649 = (5797 + 400 * (2 - 0)) / 4)

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