John Askey’s side were beaten with Tom Naylor's 95th minute goal at the SMH Group Stadium as the Spireites came from 2-0 down.
Emmanuel Dieseruvwe and Anthony Mancini gave the travelling 1,030 Hartlepool supporters plenty to cheer in the early exchanges as Pools raced into a commanding lead.
But despite the defeat, it was another excellent backing from Pools fans.
And here you can check out our latest gallery from a sold-out away end:
1. Chesterfield 3-2 Hartlepool United
Hartlepool were back in action on Bank Holiday Monday. Picture by FRANK REID Photo: Frank Reid
2. Chesterfield 3-2 Hartlepool United
It was a quick turnaround for Pools who faced Chesterfield on Bank Holiday Monday. Picture by FRANK REID Photo: Frank Reid
3. Chesterfield 3-2 Hartlepool United
It was an important early season clash at the SMH Group Stadium. Picture by FRANK REID Photo: Frank Reid
4. Chesterfield 3-2 Hartlepool United
Pools were back on the road in the National League. Picture by FRANK REID Photo: Frank Reid