Goals from Will Grigg and Dilan Markanday had put the excellent Spireites in a commanding position after 20 minutes before Daniel Kanu headed one back before half-time to give the visitors a lifeline against the run of play.
The Saddlers had momentum after that and they equalised on the hour when substitute Albert Adomah headed in from close-range and they looked the more likely to side go on and win it, until a late rally from the Blues, but the points were shared between the promotion hopefuls.
The result leaves Chesterfield in eighth, four points behind Walsall in seventh.
Here are our player ratings from the game...
5. Tom Pearce 7
Threatened an assist with a couple of crosses before he soon did create the opener with a great whipped ball into the near post. Continued his top performance in the second-half. Already looks a shrewd addition. Photo: Submitted
6. Ryan Stirk 6
Faced his former club and was on the end of some chants and boos from the visiting fans. The midfielder got around second balls and put himself about. Photo: Tina Jenner
7. Sammy Braybrooke 6
Back in the line-up in place of Naylor. Won the ball back at least three times, which is a part of his game was might have gone unnoticed by some, in the first-half. Did some more of the ugly stuff well after the break, too. Photo: Brian Eyre
8. Dilan Markanday 7
Doubled Chesterfield's lead when he ran through on goal and slotted in for his second goal in three games since returning from injury. Only just back from injury and after a three-game week he was given a breather on 75. Photo: Tina Jenner