Event: Div 2 - Weston Trophy

Opponent Rating Result
Paul Wheatley 1788 0 - 1
Nigel Baxendale 1648 0 - 1
George Swanson 1640 0 - 1
Richard F Hall 1743 ½ - ½
Philip G Ellis 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1204 = (6819 + 400 * (1 - 3)) / 5)

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