Event: IM Brown Shield

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Opponent	Rating	Result
Martina Flint	1890	1 - 0
Alan J Walton	2093	1 - 0
Paul Solomons	1864	½ - ½

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

2216 = (5847 + 400 * (2 - 0)) / 3)