Event: South Cheshire Shield

Opponent Rating Result
Lea Podmore 1416 ½ - ½
Jim Leech 1249 1 - 0
Raymond F Rhodes 1236 ½ - ½
Oskar Jarzynski 1493 ½ - ½
Jamie Roberts 1450 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1529 = (6844 + 400 * (2 - 0)) / 5)

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