The Robins leave the capital with all three points following a 1-0 win over Charlton Athletic away at The Valley in the Sky Bet League One.
It was a late goal from Alfie May that proved to be the difference for Cheltenham who now leapfrog the Addicks in the league table.
An early chance fell for Sean Clare who drilled an effort across the face of the goal with Lewis Freestone needed to divert the shot away from goal.
A mistake from Ryan Inniss saw Dan Nlundulu through on goal, his effort smacked the bar before the ball fell to May whose shot was blocked on the line.
Another mistake from Inniss saw the ball with Liam Sercombe in the box, his driven pass found its way to May, who was ruled offside by the linesman.
Sercombe once again found himself in an inviting area, this time on the edge of the box, his effort from range went just wide of the post on his 600th professional appearance.
Diallang Jaiyesimi was played in on goal for Charlton, his effort was well high of the goal, ending up with the Cheltenham fans.
Jes Rak-Sakyi did manage to get the ball in the net for Charlton, however, he was ruled off-side, and a free-kick was awarded to the Robins.
Jaiyesimi found himself with room in the box, his shot was blocked after a heroic sliding challenge from Elliott Bonds.
A fluid counterattack found Sercombe on the edge of the box, his curling effort was covered by Craig MacGillivray in the Charlton goal.
Charlton managed to get the ball in the net again through Charlie Kirk, however, his effort was ruled out for off-side.
May put the Robins ahead late on, capitalising on an error from MacGillivray to put the Robins ahead in front of the away fans.
Substitute Christian Norton almost doubled the lead, with his curling effort needing a good save to ensure the Robins couldn’t extend their lead.
Robins – Southwood, Long ©, Williams (Hutchinson 70), Freestone, Sercombe, Sercombe, Nlundulu, May (Norton 86), Taylor, Bonds, Broom, Olayinka (Jackson 70)
Un-used substitutes – MacDonald, Raglan, Brown, Barkers
Charlton – MacGillivray, Sessegnon (Campbell 77), Dobson ©, Jaiyesimi (Aneke 65), Morgan (Payne 77), Rak-Sakyi (Kirk 65), Fraser, Inniss, Clare, Ness, Mitchell
Un-used substitutes – Maynard-Brewer, Lavelle, Forster-Caskey,
Referee – A Young
Attendance – 12,566 (346)