Event: NSDCA Division 1

Opponent Rating Result
Philip J Cattermole 1790 ½ - ½
Stephen J Emmerton 1564 ½ - ½
Martin F Frisher 1748 0 - 1
Harry Gardiner 1880 0 - 1
David A Hallen 1490 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1534 = (8472 + 400 * (0 - 2)) / 5)

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