WBUR has posted precinct-by-precinct results on a map. The first thing that stands out is how overwhelmingly Walsh took Hyde Park - it proved his margin of victory.
But also interesting is how Washington Street - the one that runs through Roxbury, JP, Roslindale and West Roxbury - served as a boundary line between Walshville and Connolly Town. East of Washington Street, Walsh won big. West of Washington, it was mostly Connolly.