Event: Division 3

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Opponent	Rating	Result
David Ruppert	1546	1 - 0
Sergey Pereslavtsev	1587	0 - 1
Michael GA Wilson	1708	½ - ½
David Ruppert	1546	1 - 0
Biel Obiols	1419	1 - 0
Len SC Whittaker	1398	1 - 0
Jay Sharman	1654	1 - 0
Pharrell Galloway	1341	0 - 1
John K Hood	1328	1 - 0

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

1681 = (13527 + 400 * (6 - 2)) / 9)