Event: Division 1

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Opponent	Rating	Result
Paul J Kelly	1862	1 - 0
Jeffrey Boardman	2016	½ - ½
John N Sugden	2106	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

2128 = (5984 + 400 * (1 - 0)) / 3)