A goal from Aaron Martin has seen Guiseley go into the half-time break 1-0 up against Hereford.
Martin - who is the leading goalscorer in National League North - got the better of Jordan Cullinane-Liburd before looping the ball over the head of Brandon Hall.
Cullinane-Liburd later made amends for his error by clearing the ball off the line, while Hall made a great double save to deny Aram Soleman.