Event: Division 2

Opponent Rating Result
David Erentz 1705 1 - 0
Chris A Fraser 1556 0 - 1
Maurice J Hill 1772 0 - 1
Chris M Holt 1777 0 - 1
Robert H Willoughby 1634 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1609 = (8444 + 400 * (2 - 3)) / 5)

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