Event: Derby & District Division 3

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Opponent	Rating	Result
Dean Davis	1316	½ - ½
Nadia Prokofjeva	1027	1 - 0
Sam Rolfe	1226	1 - 0
Andy Bacon	1407	0 - 1
Colin Ross	1489	0 - 1

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

1293 = (6465 + 400 * (2 - 2)) / 5)