Found an additional tactic besides the hip check move that made it easier.
Guide to Fighter Jeffry Tactic
Besides just picking Jeffry and spamming hip checks (J+K on Keyboard) there is something you can do that almost ensures damage.
When you first knock down any foe regardless of what move you use they take a moment to stand up, back far away from them and when they have gotten up again they will sprint to close distance and won’t be able to defend themselves and takes slightly longer than normal to initiate and attack.
By taking advantage of this you can get them in a loop that almost always works.
After you hit with a hip check you must move away from them, this gives enough distance that they always sprint towards you, just wait a little bit after they stand up so you don’t fall short when you hip check -> repeat until you’ve won.
You might get combo’d and die sometimes before you start the loop but it’s far easier than simply spamming Hip Checls.
Used this to go start to Dural in ~10 mins. The timing is slightly later on Dural from the slow motion.
TLDR: Knock them down with any move, move far away, they start running after they stand back up, initiate hip check, they nearly always get hit, double tap away from them on the movement key, when they stand back up wait just a slight moment and then hip check again. repeat until you win,