Decent pub with real ales on draft, always including the local Batemans XB as well I believe. Good sized screens with Sky and a pool table. The lounge area might become a bit tight with a coachload of football fans in it but it's nicely furnished.
It's well out of town and would be a good 45 minute's walk from York Street... It should, in theory, take about 10 minutes by road but at the moment on a Saturday you'd be at least half an hour crawling up Sleaford Road (bear that in mind whether you're stopping there or not), and you might want to check back closer to the time as well in case it worsens - they're currently in the process of digging up (and widening) the important roads and junctions in Boston!