Event: League Division 2

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Opponent	Rating	Result
Alex Howdle	1677	0 - 1
Hugh Thornton	1568	0 - 1
Kenneth L Marsden	1394	0 - 1

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

1146 = (4639 + 400 * (0 - 3)) / 3)