Event: Division 1

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Opponent	Rating	Result
Steve Lovell	1821	0 - 1
Trevor Robbins	1969	½ - ½
Paul R Kemp	2025	½ - ½

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

1805 = (5815 + 400 * (0 - 1)) / 3)