Event: Division 1

Opponent Rating Result
Roy Phillips 2179 0 - 1
Colin J Davis 2115 ½ - ½
Nigel K Hosken 2036 1 - 0
David Painter-Kooiman 1920 0 - 1
Ahmed Khankar 1830 ½ - ½
Peter J Kirby 2059 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1957 = (12139 + 400 * (1 - 2)) / 6)

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