Hmmmm.
No KWS on your target.
Most of the engagement was spent in lag pursuit, except when going nose-to-nose.
Ranges were well over 3 km during much of the fight. No long-range weapons. Only 2 pips to engines.
Your opponent did not seem to have any weapons that were effective, or he forgot to pull the trigger.
Lots of time spent synthesizing your ammo.
You did not target the power plant, until late in the fight.
Several times, he was spread-eagled in front of you, no shields, and you had no secondary weapons, such as cannons, missiles, dumbfires, mines, or even a Class 1 laser to shoot him with.
He wasted several opportunities to recharge his shield. When he got down to one ring, the fight was over. He was also over-dependent on chaff as his defenses. He should have extended, escaped, repaired (you did repair), and returned on better terms.
It was essentially an attrition battle/joust between two FDL's, both with maxed thrusters. If this was a pre-arranged fight, with a no high wake agreement, I can understand why he hung around. I would have jumped, long before.