Event: Division 4

Opponent Rating Result
Harry Baybutt-Thompson 1611 0 - 1
Neil Maher 1474 0 - 1
Steven E Gerrard 1708 0 - 1
David McKee 1567 0 - 1
Archie Hewitt 1109 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1174 = (7469 + 400 * (0 - 4)) / 5)

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