I've got a tasty chopper in Sywell if anyone wants to give it a go...
1 hr 55 minutes by road according to the web but that's excluding getting to your car from the earlier match and getting out of your car at the other end and getting to the match. I'm also presuming no need for extra time in Brackley's match.
I suppose you'd be okay if you had a willing driver who wasn't bothered about attending either game (drop/pick up those who do as close to the grounds as can be done in a timely fashion.
Not for me. One live match in a day is enough.