Nuneaton Town and Atherstone Town both failed to take advantage of their game in hand over Southern League Midlands Division leaders Leamington.
The second and third-placed teams drew 2-2 at Liberty Way on Tuesday.
Gez Murphy gave Boro a first-half lead only to see the Adders' Tom Bates turn the game on its head with a brace.
But the home side rescued a point thanks to David Blenkinsopp to move six points behind Brakes with six games left to play.
Murphy opened the scoring just before the half-hour mark, the striker making the most of Rob Oddy's half-cleared cross.
The game livened up after the interval and the second half was 17 minutes old when the visitors were awarded a penalty after Guy Hadland handled in his area, Bates duly dispatching from 12 yards.
And it was midfielder Bates with another dead-ball special on 79 who gave Atherstone the lead, curling in a 25-yard free-kick.
But Nuneaton responded swiftly through Blenkinsopp and Rob Foster could have nicked all three points for Boro but his late effort came back off a post.
The result leaves Adders one point behind Nuneaton in third place.
Nuneaton manager Kevin Wilkin:
"I'm a bit disappointed we didn't win the game to be honest.
"We had a couple of lapses of concentration. I couldn't really see them scoring in open play against us.
"I thought whatever they threw at us, by and large, we've defended really well."
Atherstone manager Jimmy Ginnelly:
"I feel as though we've lost the game. I might be biased because I'm the manager of Atherstone but I think we put the pressure on in the second half.
"Equalise and you think you'll take the draw and when we got in front I thought we've won this, these are gone.
"I'm disappointed with the referee because I think it's a foul on the goalkeeper."
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