Event: John Newsome Cup: 1200 to 1500

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Opponent	Rating	Result
James Walker	1517	0 - 1
Titus Coulthard	1417	0 - 1
John Hill	1471	0 - 1

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

1068 = (4405 + 400 * (0 - 3)) / 3)