Event: Division Two

Opponent Rating Result
Jana M Bellin 1987 ½ - ½
Gavin Cartwright 1843 0 - 1
Nigel K Hosken 2054 0 - 1
Nicholas A Walker 2071 ½ - ½
Martin D Smyth 1928 0 - 1
Iulian Vaduva 1750 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1806 = (11633 + 400 * (1 - 3)) / 6)

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