Event: IM Brown Shield

Opponent Rating Result
Alan J Walton 2112 ½ - ½
Martyn Hamer 2135 0 - 1
Chris Jardine 1854 1 - 0
Steve J Mann 2039 1 - 0
Toby Quaite 2070 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2122 = (10210 + 400 * (2 - 1)) / 5)

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