Jack Lester's equaliser in the seventh minute of injury time gave Chesterfield a point against 10-man Stevenage.
The visitors scored when Darius Charles headed in from close range after a powerful header from Michael Bostwick.
Stevenage were reduced to 10 men when Bostwick was sent off for his second yellow card when he fouled Mark Allott.
Lester, who had earlier hit the post from two yards, scored the leveller when he got in between two defenders to head in from Dean Morgan's cross.
VIEWS FROM THE DRESSING ROOM
Chesterfield manager John Sheridan told BBC Radio Sheffield:
"I think the good thing is we created a lot of chances and we had opportunities to score goals.
"The disappointing thing is obviously we conceded a goal, we didn't deal with it properly but I thought the lads kept going and we got our just rewards in the end.
"I think we deserved to win with the chances we created but they're a tough team and I knew it would be a tough game and I knew it wouldn't be a great spectacle, but that's the way that they are."
Stevenage manager Graham Westley told BBC Three Counties Radio:
"It was an excellent team performance throughout the afternoon. We had to face some difficult decisions out there today. We're not ones to moan about decisions, mistakes happen. I want to focus on the work the boys put in.
"They will look back at the afternoon and think we got a lot right today. We kept a much higher line and the back four habits were much improved from where they were the other night.
"This isn't an easy place to come and play. Their home record is decent for reasons. They have some very expensive players, players with good backgrounds. It was a progressive afternoon."