The Pilgrims continued their fine unbeaten start to the National League U19 Alliance Academy Division North campaign by winning 3-1 at the KGV Sports Hub.
Horne's free-kick and Hunt's strike secured a 2-0 buffer at half-time, with Zaluzinskis re-establishing United's two-goal lead after Chester had briefly hit back.
Boston: Cameron Fox, Ellis Perry-Burdett, Taylor Jaine, Will Langford, Charlie Brooks (Josh Doran 63), Finley Ging, Jake Henderson (JJ Ward 61), Kris Zaluzinskis, Joe Wilkinson (Rueben Fogg 67), Hugo Hunt (Flynn Slater 83), Luke Horne (Rhys Smaller 73).