Event: 4th Simon Bartlett Memorial Minor

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Opponent	Rating	Result
Lloyd Russell	1250	1 - 0
Paul Foster	1570	0 - 1
David Edwards	1378	1 - 0
Piran Wills	1555	0 - 1
Lana Boztas	1431	0 - 1

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

1357 = (7184 + 400 * (2 - 3)) / 5)