Event: Hillingdon Div 2

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Opponent	Rating	Result
Shreya Wani	1409	1 - 0
S David Wray	1481	1 - 0
Andrew Glass	1181	1 - 0
Joseph Evans	1149	1 - 0
Ray Jennings	0	½ - ½

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

1364 = (5220 + 400 * (4 - 0)) / 5)