Event: Division 3

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Opponent	Rating	Result
Juaherman Chua	1200	1 - 0
Stephen Smithson	1338	0 - 1
Rhys Morgan	1378	0 - 1

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

1172 = (3916 + 400 * (1 - 2)) / 3)