Event: South Cheshire Shield

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Opponent	Rating	Result
Jake Hubbard	1500	½ - ½
George Bulbeck	1646	½ - ½
David A Fuller	1451	½ - ½

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

1532 = (4597 + 400 * (0 - 0)) / 3)