Event: Ringwood Rapidplay Intermediate

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Opponent	Rating	Result
Daniel Andrei Aron	1450	½ - ½
Stephen Bolton	1770	1 - 0
Paul T Errington	1611	½ - ½
Richard J Barnes	1607	1 - 0
Tony Sanderson	1619	0 - 1
Michal Orszulak	1522	1 - 0

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

1730 = (9579 + 400 * (3 - 1)) / 6)