Event: John Newsome Cup: 1200 to 1500

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Opponent	Rating	Result
Titus Coulthard	1428	1 - 0
James Walker	1517	0 - 1
David Firth	1426	0 - 1

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

1324 = (4371 + 400 * (1 - 2)) / 3)