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...
13. Armando Dobra 6
Replaced Duffy on 65. More minutes in the tank after his return from injury. Photo: Brian Eyre
4 / 4