Event: NSDCA Division 1

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Opponent	Rating	Result
John M Turner	1947	0 - 1
Roger J Edwards	1619	0 - 1
John R Booth	1866	0 - 1

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

1411 = (5432 + 400 * (0 - 3)) / 3)