Event: Division 3

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Opponent	Rating	Result
Angus Stewart	1479	1 - 0
Sid McDonald	1402	0 - 1
Richard J F Caves	1418	0 - 1

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

1300 = (4299 + 400 * (1 - 2)) / 3)