If the title means so much to you Sethil, run forrest...run.
If you agree to duel to the end, running is just lame.
If you are being attacked without you agreeing to duel its nothing wrong in running if you know you gonna loose.
But a duel is a duel. If the duel is fair(no outside heals and ****) then stay and win or die.
Why? Because you agreed to duel and if the other person is kicking your ass you deserve to die and he deserves the kill.
Deal with it, learn and get better. Adapt.
But running is plain and simple low and deserves zero respect.
Anikitos