The dogfight position occurs when both grapplers are on their hands and knees facing the same direction, with underhook and overhook control. It's a critical scramble position in half guard exchanges.
When you have an underhook in half guard and your opponent's weight shifts forward, use the underhook to come up to your knees. This brings you to dogfight position.
When the bottom player pumps their underhook and comes up, the top player must immediately fight the underhook to prevent the sweep or back take.
The player with underhook wins the dogfight. Drive your underhook up under their armpit while keeping your elbow tight. A high underhook with shoulder pressure is dominant.
If they have underhook, crossface them aggressively to flatten them, or use a whizzer (overhook) to counter their underhook and prevent the sweep.
With underhook in dogfight, drive your head into their hip while posting your outside leg. Run the outside leg up and forward, folding them over your hip for a sweep.
If they turtle up to avoid the sweep, follow with a seat belt — underhook and overhook. Circle to insert hooks and secure back position.
With underhook in dogfight, you can also stand up to break free of the half guard and create a scramble for the top position. Post your outside leg, stand, and defend any takedown attempts.