Event: D&DCL Div 3

Opponent Rating Result
Roger Moors 1603 ½ - ½
Shish Ganapathi 1356 1 - 0
Garry Sands 1590 0 - 1
Roger Moors 1603 ½ - ½
Peter M Collins 1676 ½ - ½
Chris A Fraser 1552 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1497 = (9380 + 400 * (1 - 2)) / 6)

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