Hearts U20s suffered a narrow 1-0 defeat to Kilmarnock at Rugby Park on Tuesday evening.
A first-half strike was enough to seal the three points for the hosts.
The goal came on 35 minutes when a trialist latched on to a loose ball and fired beyond Kelby Mason.
Hearts: Mason, Brandon (Reid 59), Hamilton, Jones, Godinho, Akers (Sandison 59), Cochrane (Leonard 28), Petkov, Irving, Baxter, Buchanan. Subs not used: Gajda, K.Smith, Ritchie.