Event: Division 5

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Opponent	Rating	Result
Ben Poulteney	1150	0 - 1
Anbalagan Marimuthu	1363	0 - 1
Charles Steele	1442	1 - 0
Mick J Frings	1329	1 - 0
Gavin Dow	1432	0 - 1
Roger Southward	1152	1 - 0
Amarishika Anbalagan	1172	½ - ½
Tom Bott	1000	1 - 0
Gavin Dow	1432	0 - 1

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

1275 = (11472 + 400 * (4 - 4)) / 9)