Event: D&DCL Div 2

Opponent Rating Result
Martin Cobham 1768 ½ - ½
Norman J Davies 1639 0 - 1
Chris A Fraser 1538 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1515 = (4945 + 400 * (0 - 1)) / 3)

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Opponent Rating Result
Vaughan WG Smith 1604 0 - 1
Kevin J Gallagher 1641 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1223 = (3245 + 400 * (0 - 2)) / 2)