Event: David Jenkins Memorial Cup

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Opponent	Rating	Result
Kamar Talab	0	1 - 0
David J Jenkins	1805	0 - 1
Thomas Jefferson	0	1 - 0
Ian M George	1882	1 - 0
Andrew Beach	1584	1 - 0

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

1294 = (5271 + 400 * (4 - 1)) / 5)