Event: Five Counties Div 2

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Opponent	Rating	Result
Samuel Knight	1306	1 - 0
Daniel Knight	1692	0 - 1
Augustas Jonikas	1498	0 - 1
Brendan Barry	1243	1 - 0
Daniel Chan	1352	1 - 0
Sundararaju Kanakaraju	0	1 - 0
James Cowan	1301	½ - ½
William Chen	1411	½ - ½
James Holyhead	1523	½ - ½

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

1347 = (11326 + 400 * (4 - 2)) / 9)