A Plymouth Argyle side who recorded their sixth straight win in League One proved tough opposition as Cheltenham Town fell to defeat at Home Park.
First half goals from Niall Ennis and Danny Mayor saw Argyle seal another three points in their pursuit of promotion to the Championship.
There were two changes to the team that had defeated AFC Wimbledon at the weekend with Mattie Pollock returning to the side with Lewis Freestone also in the starting XI due to Ben Williams' injury absence.
With the hosts high on confidence, it was actually the Robins who threatened early on. Elliot Bonds, Alfie May and Matty Blair all had opportunities, but with their first meaningful attack Plymouth took the lead.
Ennis cut in from the left and drilled a low shot that speared in via the far post.
They threatened again only for Owen Evans to tip an effort around the post, while following two May half-chances a Ryan Hardie shot for the hosts was deflected just wide.
Five minutes before the break Plymouth goalkeeper Michael Cooper made a crucial double save to prevent Blair from finding the net, but within two minutes Argyle had doubled their lead.
Hardie's set for Mayor looked to have come off his arm, but what followed was a wonderful looping finish that nestled in the back of the net from 20 yards.
After half time Hardie threatened again but saw his low hit saved by Evans, while Blair's dipping attempt from distance led to Cooper's first save of the second half.
The Argyle goalkeeper had Gloucester born Joe Edwards to thank for a goal line stop from a Sean Long throw in which Will Boyle looked like he'd guided into the bottom corner.
Substitute Charlie Colkett's volleyed effort didn't drop enough before going over the bar and May's header hit the back of the net late on, only to be ruled out by the raised flag of the assistant referee as the hosts ended the night not only with all three points but a clean sheet too.
PLYMOUTH: M Cooper, J Bolton, M Gillesphey, J Houghton, J Wilson, R Broom, J Edwards (S Sessegnon 80), R Hardie, D Mayor (A Randell 70), N Ennis (J Garrick 84), C Grant
Subs not used: C Burton, R Law, R Crichlow, F Issaka
ROBINS: O Evans, C Raglan, M Pollock (G Lloyd 58), W Boyle, S Long, L Freestone, E Bonds (C Colkett 53), L Sercombe (E Chapman 75), C Wright, A May, M Blair
Subs not used: S Flinders, C Thomas, A Williams, R Hutchinson
REFEREE: Chris Pollard
ATTENDANCE: 12,274 (179 Robins)