Event: Dave Welch 7200 League

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Opponent	Rating	Result
Jordan Lee	1761	1 - 0
Steve J Burge	1694	½ - ½
Keegan Broxup	1673	½ - ½

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

1843 = (5128 + 400 * (1 - 0)) / 3)