Event: Div 1 - Davy Trophy

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Opponent	Rating	Result
Ken A McIntosh	1825	½ - ½
Xi-Yang Guo	159	0 - 1
Jay Ryalls	0	½ - ½
Rishab Cammanchery Krishnan	1615	½ - ½
John Trafford	1965	½ - ½
Andrew Hards	1884	0 - 1
Shamil Khadaev	1675	0 - 1
Shamil Khadaev	1675	0 - 1

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

1150 = (10798 + 400 * (0 - 4)) / 8)