Event: WDCL Division 3

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Opponent	Rating	Result
Stephen Deakin	1421	0 - 1
Peter Morgan	1396	1 - 0
Jake Humphreys	1231	½ - ½

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

1349 = (4048 + 400 * (1 - 1)) / 3)