An animal restraint system includes an arm clamp having a clamp body, a tether, a tether clamp, and a tether connector. The clamp body affixes to a securing arm at or below the animals head and includes a tether anchor and a tether guide. The tether has a first tether end coupled to the tether anchor, a second tether end, and a middle section forming a loop, with a first loop side extending from the first tether end and a second loop side extending from the second tether end through the tether guide. The tether anchor and the tether guide are positioned to maintain substantial alignment between the first and second loop sides when the loop is tensioned. The tether clamp divides the loop into a primary and secondary loops and maintains a size of the primary loop, and the tether connector is slidably coupled to the primary loop.
