Event: 1675 Inter Members Team Championship

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Opponent	Rating	Result
Philip J Gregory	1915	½ - ½
Ian A Hames	1825	½ - ½
John Richardson	1750	½ - ½

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

1830 = (5490 + 400 * (0 - 0)) / 3)