Cheltenham suffered their first defeat of the season after a disappointing 3-0 home defeat to Accrington Stanley.
Mark Yates' men conceded two sloppy goals before the break which left them with a mountain to climb.
The contest was over when Romuald Boco scored the visitors' third goal two minutes into the second half.
Yeovil Town won for a club record 8th time in a row. Bristol Rovers also won, Cheltenham drew and Bristol City lost in the Severnside derby.
There were wins today for both Bristol clubs and Yeovil Town. Swindon Town could only draw and Cheltenham Town slipped to defeat.
Bath have beaten West Country rivals Gloucester 32 - 5 in the LV= Cup.