Feeling nerves before a race is normal, but staying focused can set you apart...

https://cashsimpressiveblog.scriblorax.com/posts/4-in-6-out-breathing-for-anxiety-is-that-the-right-ratio

Feeling nerves before a race is normal, but staying focused can set you apart on track. One simple tip is to breathe in for four counts and slowly out for six to eight—this calms your body and sharpens your mind