Hartlepool United were beaten on the road despite Clarke Oduor's first Pools goal. Swindon ran out 2-1 winners, despite a strong second half from Keith Curle's side.
It was Oduor who had the first chance of the game, but the Kenyan saw his drive parried over the bar. Despite Pools putting the pressure on, Swindon took the initiative, scoring two early goals.
First, Jonny Williams flicked the ball past Killip after a deep cross, before Jephcott doubled the lead with a header.
The game sprung Pools into life, and after an early change, they got one back. Niang won the ball back high up the pitch and found Oduor. The winger made no mistake and fired past the 'keeper for his first professional goal.
Despite chances for Josh Umerah, Curle's side went in behind.
Pools were on the front foot in the second half, with Tumilty and Featherstone both finding good crosses to swing into the box. Cooke, Lacey, and Sylla all had good chances, but it wasn't to be.
It's a quick turnaround for Pools now, with Salford City in town on Tuesday evening.
Pools XI: Killip; Lacey, Murray, Niang (Paterson 35); Oduor (McDonald 76), Shelton (Tumilty 26), Crawford, Featherstone (Sylla 76), Ferguson; Cooke, Umerah (Robinson 76)
Subs: Letheren, Taylor
Attendance: 8,527. 123 away fans.