Event: Division Five

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Opponent	Rating	Result
Rishab Murthy	1254	0 - 1
Malcolm Jones	1239	1 - 0
Richard Bailey	1517	1 - 0
Reg Jones	1331	1 - 0
Bill Kimberley	1663	0 - 1
Wojciech Slupski	1481	½ - ½
Jacob Barker	1500	1 - 0
Satnam S Goray	1654	0 - 1

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

1505 = (11639 + 400 * (4 - 3)) / 8)