Men's 20 km will be held from 6 to 7:30 AM, way ahead of swimming.
I guess many corporate lawyers will watch that before going to work in downtown Tokyo.
Short preview for dressage.
https://dressage-news.com/2019/07/24/pan-american-games-dressage-begins-in-3-days-usa-looking-for-6th-straight-gold-canada-brazil-mexico-seeking-ticket-to-tokyo-olympics/
But they do speak it (it's the third most common language in SA with 7 million native speakers according to Wiki). And I do know of some SA athletes whose mother tongue is Afrikaans.
There are probably English whites and others too? Afrikaners are rather specific minority of Dutch descendants who have Afrikaans as their first language (a funny version of Dutch, according to @heywoodu).