Event: Division 3

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Opponent	Rating	Result
Patrick Bourne	1363	0 - 1
James Picton	1609	0 - 1
Richard Watkins	1790	1 - 0

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

1454 = (4762 + 400 * (1 - 2)) / 3)