Event: B&DCL Div 4

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Opponent	Rating	Result
Chris D Lane	1481	½ - ½
Sebastian Nickel	1435	½ - ½
Jason Wang	1550	½ - ½
Oleksii Panchenko	1600	1 - 0
Sebastian Nickel	1435	1 - 0
John R Bowley	1599	1 - 0
Tim Rushworth	1400	1 - 0
Mike Rutter	1665	½ - ½

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

1721 = (12165 + 400 * (4 - 0)) / 8)