So let's see, ISO 50-200 is 2 stops. A normal bright day without snow would typically be F16 with ISO 200 or F8 at ISO 50. Both of those would be accurate with a shutter speed of 1/250. So, assuming F16 was correct with ISO 200 @1/250, then F8@1/500, F5.6@1/1000, F4@1/2000, F2.8 @1/4000 and F1.6@ 1/8000 would be accurate. If working with ISO 50 @F8 @ 1/250 was accurate then F5.6@ 1/500, F4@ 1/1000, F2.8@ 1/2000 and F1.6@ 1/4000 would be the limit. With some brighter scenes and digital stretching 1/8000 is possible. But with any clouds and possible shade it's less so. What's the point? Each of the above settings would give appropriate exposure but only the fastest shutter speed would stop high speed, like a bullet. Interesting that he chose to go the the limit of shutter speed when other choices were available.
Who uses or says ASA anymore?
As stated multiple times this has been posted, he was also capturing the flag in the background.
With an ISO around 50-200, an aperture at 1.6...a shutter of 1/8000 is an appropriate approximation for proper exposure.
So let's see, ISO 50-200 is 2 stops. A normal bright day without snow would typically be F16 with ISO 200 or F8 at ISO 50. Both of those would be accurate with a shutter speed of 1/250. So, assuming F16 was correct with ISO 200 @1/250, then F8@1/500, F5.6@1/1000, F4@1/2000, F2.8 @1/4000 and F1.6@ 1/8000 would be accurate. If working with ISO 50 @F8 @ 1/250 was accurate then F5.6@ 1/500, F4@ 1/1000, F2.8@ 1/2000 and F1.6@ 1/4000 would be the limit. With some brighter scenes and digital stretching 1/8000 is possible. But with any clouds and possible shade it's less so. What's the point? Each of the above settings would give appropriate exposure but only the fastest shutter speed would stop high speed, like a bullet. Interesting that he chose to go the the limit of shutter speed when other choices were available.
If you want the crowd to be a blur why would you shoot above f2.8 or f4? Trump is the focal point. He also wanted to capture the flag.
Exposure https://files.catbox.moe/jkjrgn.png
Somewhat less cropped. https://files.catbox.moe/zwm8l9.jpeg