Event: Baum Trophy summer league

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Opponent	Rating	Result
Mark D McWilliams	1444	1 - 0
Stephen John Palmer	1530	1 - 0
Robin J Oakley	1796	0 - 1
Mark D McWilliams	1444	1 - 0
Robin J Oakley	1796	1 - 0
Stephen John Palmer	1530	0 - 1

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

1723 = (9540 + 400 * (4 - 2)) / 6)