Event: Division Four

Opponent Rating Result
Awais Zabber 1522 0 - 1
Ken Wise 1509 ½ - ½
Peter J Hughes 1433 1 - 0
David Wilkinson 1400 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1466 = (5864 + 400 * (1 - 1)) / 4)

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