Event: Division 4B

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Opponent	Rating	Result
Elliott Bleeg	1403	½ - ½
Harry Duckworth	1489	1 - 0
Rod Taylor	1475	½ - ½

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

1589 = (4367 + 400 * (1 - 0)) / 3)