Event: Division Three

Opponent Rating Result
Milenko (Mike) Walner 1735 ½ - ½
Michael J Harrington 1615 0 - 1
Graham Barrett 1593 ½ - ½
Mike A Biddle 1788 ½ - ½
Thomas Evans 1631 0 - 1
Bob Hackett 1316 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1546 = (9678 + 400 * (1 - 2)) / 6)

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