Event: 5th Simon Bartlett Memorial Open

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Opponent Rating Result
Mike P Waddington 2102 0 - 1
Spencer Lawrence 1742 1 - 0
Stephen J Homer 2088 ½ - ½
Colin J Davis 2045 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1894 = (7977 + 400 * (1 - 2)) / 4)

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