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...
9. Liam Mandeville 7
Rewarded with a start after his lively showing off the bench on Tuesday. Played such an important role as he made darting runs in pockets and beyond Walsall's backline, stretching the visitors and creating space. Less of an influence after the break, apart from one half chance, and probably tired a touch. Photo: Brian Eyre
10. Dylan Duffy 6
The winger had Town's first shot on target but it was a comfortable save for Roberts. Worked hard, not heavily involved, his corners caused some problems. Photo: Submitted
11. Will Grigg 7
Recalled to the line-up to face one of his old clubs and he got on the scoresheet after 12 minutes when his initial attempt from Pearce's cross was saved but he finished the rebound. Looked sharper here than against Newport a week ago. Photo: Submitted
12. Lee Bonis 6
On for Grigg on 65. Had a late chance but keeper Roberts smothered and managed to scramble it behind for a corner. And then brought a good low save out of the visiting keeper again before the final whistle. Photo: Tina Jenner