Oxford moved top of Sky Bet League Two with a hard-fought 1-0 win at Hartlepool.
In a game played at full pace from start to finish, the Us sneaked it and leapfrogged Plymouth thanks to substitute Danny Hylton.
But they were made to work hard to extend their impressive run to just one defeat in 17 games.
Pools midfielder Jake Gray struck the bar with a fine piece of skill, chesting the ball down and hooking a 20-yard volley that had goalkeeper Benjamin Buchel beaten.
And Gray should have had a penalty...