Event: Autumn Rapid

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Opponent	Rating	Result
David Jarvis	1627	0 - 1
Samuel Stretton	1301	1 - 0
Stefan Winman	1275	0 - 1

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

1268 = (4203 + 400 * (1 - 2)) / 3)