Starting in January 2021, I set out to get a shiny Rayquaza in my Sword copy, no matter how long it took, to maybe grow at least some patience but mainly because I like the shiny. It took 8 months and 339 raids. The speedrun WR for a Dynamax Adventure is about 5 minutes, so if you do the math, it took me an absolute minimum of 1695 minutes, (339 x 5 = 1695) or about 28 hours and 15 minutes, (1695/60 = 28.25, 25% of 60 = 15) to get shiny Rayquaza in Sword. And here in my Heart Gold randomized shinylocke I get it in merely 8 days, not in real time. Cool, thanks Pokémon, very cool.