Event: Division 4A

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Opponent Rating Result
Harry Duckworth 1521 1 - 0
Luke Galt 1873 1 - 0
Oli Bain 1642 0 - 1
Roger Coles 1288 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1781 = (6324 + 400 * (3 - 1)) / 4)

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