Event: 4 Board League A

Opponent Rating Result
Robert Pells 1716 1 - 0
Paul Greenwood 1491 1 - 0
Colin S Procter 1851 ½ - ½
Ian Jewsbury 1697 0 - 1
Patrick Gray 1503 1 - 0
Mark McGinty 1597 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1843 = (9855 + 400 * (4 - 1)) / 6)

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