Wrexham moved into the Championship playoff places as in-form Josh Windass pushed Oxford United closer to the relegation trapdoor.
Top scorer Windass gave Wrexham a precious 1-0 victory with his fifth goal in six games five minutes before the break.
The win saw Wrexham take sixth spot from Hull on goal difference as the Tigers were held 2-2 at Leicester.
Wrexham’s hopes of making the playoffs — and possibly a historic fourth consecutive promotion — now rest on closing fixtures against champions Coventry and fifth-placed Middlesbrough.