Event: John Newsome Cup: 1200 to 1500

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Opponent	Rating	Result
Edward James	1497	0 - 1
Rory Neil	1204	½ - ½
Rosie Boundy	1226	1 - 0

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

1309 = (3927 + 400 * (1 - 1)) / 3)