Event: Division 2

Opponent Rating Result
David Erentz 1705 0 - 1
Nick J London 1694 ½ - ½
Chris Hill 1804 1 - 0
Grenville Wollerton 1723 1 - 0
Chris A Fraser 1556 ½ - ½
Chris Hill 1804 0 - 1
Maurice J Hill 1772 ½ - ½
Jonathan Ellinsfield 1500 1 - 0
Gregory Fray 1400 0 - 1
Oliver Amin 1519 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1688 = (16477 + 400 * (4 - 3)) / 10)

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