Event: Division 2 - Under 6800

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Opponent	Rating	Result
James Schofield	1892	1 - 0
Jun Li Yeap	1600	½ - ½
Peter E Halmkin	1825	½ - ½
Bradley Holland	1579	0 - 1

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

1724 = (6896 + 400 * (1 - 1)) / 4)