Event: League Division 2

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Opponent	Rating	Result
Paul May	1869	0 - 1
Duncan Stables	1607	½ - ½
Luke O'Keeffe	1594	1 - 0
Jack Booker	1838	0 - 1
Bandar Almutairi	0	0 - 1

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

1222 = (6908 + 400 * (1 - 3)) / 5)