The win, which strengthened their position in the division's top three, featured hat-tricks by Andre Ferdinand, Chris Icely and Sergio Schiaffino. Poly led at the start and then built a commanding lead when Bristol lost a player to a brutality offence, increasing their advantage from 8-5 to 11-5.
In another key promotion clash, Sheffield edged out Sutton & Cheam 5-4. Sutton were 3-2 up after two periods but Sheffield countered with goals by Elliot Kelly, Alex Gaywood and Chris Armstrong before Ryan Symington replied for Sutton with seven seconds remaining.