Event: Division 4A

Opponent Rating Result
Kevin D Langmaid 1549 0 - 1
Graham Strickland 1457 1 - 0
Thomas Booth 1403 0 - 1
Roger Coles 1219 1 - 0
Nathan Churchill 1068 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1419 = (6696 + 400 * (3 - 2)) / 5)

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