Event: Croydon Shield

Opponent Rating Result
Mike Roberts 2080 0 - 1
Peter R Wood 1941 1 - 0
Martin G Smith 1967 ½ - ½
Shlok Verma 2097 1 - 0
Martin G Smith 1967 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2170 = (10052 + 400 * (3 - 1)) / 5)

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