Well of course I'm biased on this one! Turns out though that seeing a chiropractor improves outcomes in various sports performance tests according to a recent research review of four published studies.
To me it's obvious that an athlete will perform better when I am able to help their body be more efficient. When a joint isn't stabilized properly, and there are compensations elsewhere in the body as a result, it takes more effort to move.
For example, if the glutes aren't firing right, then the lower back muscles and hamstrings are going to try and compensate. This compensation can go on for a while before the pain is noticed, but you might feel like your deadlift isn't what it should be.
So if you're looking for that edge, seeing a chiropractor might be your next step.
source: Journal of Manipulative Therapeutics, September 2017