Chesterfield-born Connor Dimaio’s home debut goal 11 minutes in to the second half sealed all three points for the Spireites against struggling Crewe Alexandra at the Proact.
Chesterfield raced in to a two-goal advantage when Sylvan Ebanks-Blake broke the deadlock on seven minutes before strike partner Lee Novak doubled the Spireites’ lead on 12.
Though an injury to Chris Herd meant a quick re-shuffle of the pack for Danny Wilson, with Jay O’Shea coming on in a 4-4-2 formation.
The hosts then saw their advantage halved when Zoumana Bakayogo brought the visitors back within touching distance on 27 minutes.
Spireites: Lee, Talbot, Hird (c), Anderson, John, Ariyibi, Damaio, Herd, Banks, Ebanks-Blake, Novak
Subs: O’Shea, Humphreys, Donohue, Chapman, Simons, Dieseruvwe, Slew
Crewe: Garratt, Turton, Nugent, Ajayi, Guthrie, Fox (c), Jones, Inman, Bakayogo, Haber, Saunders
Subs: Richards, NG, Ainley, Kirk, Kearns, Howell, Finney
Referee: Gavin Ward