John Whelan wrote:
Most of having a good kick is not about the kick itself, but rather being fresher than your competitors when it's time to kick. The big aspects of this are your level of aerobic fitness and how well you pace yourself.
Fine-tuning your kicking ability through workouts where you practice finishing fast on tired legs is also important, just a relatively smaller part.
Given the mile splits you provided you're doing a terrible job at pacing, so fixing that is the easiest place to start. You can run a fair bit faster just with more even splits without any improvement in fitness.
This. There are ways to improve your sprint speed a bit and that will translate to a better kick but the big part of having a good kick is not so much what your top end speed is but how close you can get to that top end speed and how long you can maintain it at the end of a race. One of my favorite all time races to watch came in a 5,000 in the late 60s where Gerry Lindgren and an East German called Jurgen May were together at the bell. May was a 3:53 miler. Lindgren had never been under 4:00. May was in second at the bell and jumped into the lead right there. He opened up maybe five to seven yards by the start of the back stretch. Then Lindgren started his kick and ended up winning by maybe five to seven yards. I think the difference there was that May was a 1500/5,000 guy and Lindgren, a 5,000/10,000 guy had the endurance to be able to run 57-58 (I think that was the lap time) which was pretty much as fast as he could run for 400 meters and May was just too done in to get anywhere close to his 400 best.
I once got to talking about this with Peter Snell. He was telling me about a workshop he was at that John Chaplin had organized to address the topic of why US distance runners were so often outkicked. Chaplin had brought in some sprint coaches to talk about ways for distance runners to improve their sprint speed as a way to have a better finish. But "Chaplin was rearranging deck chairs on the Titanic," Peter told me. The problem the distance runners had was not lack of speed but lack of enough endurance to enable them to reach that speed.