Event: Division Two

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Opponent Rating Result
Michael J Harrington 141 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

541 = (141 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Terry W Walker 151 1 - 0
Stephen M Chadaway 139 ½ - ½
Iain Brodie 147 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

146 = (437 + 400 * (1 - 1)) / 3)