Event: NSDCA Division 4

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Opponent	Rating	Result
Andrew Crosby	1405	½ - ½
David A Hallen	1465	½ - ½
Neville S Jones	1508	½ - ½
Finlay Charbonneau	1538	0 - 1
Derek Whitehurst	1469	½ - ½
Timothy Weston	1328	0 - 1
Cristian-Gabriel Dragan	1384	1 - 0
Roger Coleman	1241	1 - 0

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

1417 = (11338 + 400 * (2 - 2)) / 8)