Event: Division 3

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Opponent	Rating	Result
Adrian Hall	1441	1 - 0
Sam Harrison	1550	0 - 1
Daniel Pugh	1630	0 - 1
Michael MJ Osborn	1575	0 - 1
Sid McDonald	1420	1 - 0
Sid McDonald	1419	1 - 0
Daniel Finch	1560	0 - 1
Richard J F Caves	1424	1 - 0
Nikolay Starodubcevs-Snaiders	1400	1 - 0
John Nevin	1462	0 - 1

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

1488 = (14881 + 400 * (5 - 5)) / 10)