I’ll make a deal with you. Let’s each put two 100 dollar bills at the end of a 50-yard track I will take a sprinter who does no distance running and you get a marathoner. Whoever’s guy gets there first gets the cash. You happy with the marathon runner as your guy?
Work on short, mid-range and some long sprints. Work deceleration and change of direction. Work hills, ladders and hurdles but for frog’s sake, don’t run distance thinking you’re getting faster.