The running pictures are awesome work. For a lot of families your pictures might be the only pictures they have of the runners running.
My comment was about how NBA “press pool” level photographs are made (and big time college hoops). They use flash but the flashes are big, wireless and up in the rafters (i.e. indirect). Basically, the press pool has access to studio lighting and can shoot at low iso and narrow apertures…and of course they have access to great shooting positions.
Luck is always a factor…the photographer in Liefer’s iconic photo is just looking at the backside of Ali’s big white trunks…
https://neilleifer.com/collections/muhammad-ali?srsltid=AfmB...
But for what it is worth, when I was shooting a lot of high school soccer, better action shots came from “skating to where the puck is going.” And turning off spray and pray because there’s only one best moment to click the shutter and mechanical sympathy is the best way to get close.
And fewer photos meant less grunt work later…modulo pleasing an editor or the mother of the bride. It was a pure hobby, not a jobby.
When that phase of my life passed, I shifted toward tilt-shifts and movements and doubled down on one shot at a time.