Event: Div 1 - Davy Trophy

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Opponent	Rating	Result
Ayodeji Jeje	2122	1 - 0
John Trafford	1965	1 - 0
Tim Gollins	1939	1 - 0
Ionel Dragan	1894	½ - ½
Samuel A Milson	2174	0 - 1
Michael R Handley	2030	½ - ½
Phil Griffiths	1936	½ - ½
Tom Key	1563	1 - 0

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

2103 = (15623 + 400 * (4 - 1)) / 8)