Event: Ringwood Rapidplay Open

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Opponent	Rating	Result
Nwachukwu Okoli	1919	0 - 1
Dennis Stokes-Carter	1841	1 - 0
Mark Littleton	2012	0 - 1
Clive R Bowley	0	0 - 1
Thomas R Anderson	1672	½ - ½
Stephen M Pollyn	1766	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1335 = (9210 + 400 * (1 - 4)) / 6)