Event: 5th Simon Bartlett Memorial Minor

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Opponent	Rating	Result
Michael R Pope	1480	½ - ½
Lana Boztas	1488	½ - ½
Ian Leslie	1403	½ - ½
Richard Brenton	1559	0 - 1

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

1383 = (5930 + 400 * (0 - 1)) / 4)