Personally, before a race I just go through the same dynamic warmup I would for a soccer match since that is what I know. (sweatscience.com)
Complementing the findings of Tomaras and MacIntosh's work, a 2015 University of North Carolina study concluded that a 15 - minute dynamic warmup enhanced vertical jump, boosted strength, and increased flexibility compared to a static stretching routine. (blog.trainheroic.com)