Event: William Jeffrey Cup - Margate 30

Opponent Rating Result
Keith C Findley 1846 0 - 1
Keith C Findley 1846 0 - 1
Leon A Garfield 1275 0 - 1
Colin G Gregory 1416 0 - 1
Josh Glanville 1200 1 - 0
Josh Glanville 1200 1 - 0
Joseph Morris 1383 ½ - ½
Joseph Morris 1383 0 - 1
Leon A Garfield 1271 0 - 1
James Cole 1544 0 - 1
James Cole 1544 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1228 = (15908 + 400 * (2 - 8)) / 11)

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