What is the chance of this happening?

At first I thought Rayquaza had a 100% catch rate in ORAS, but it was only 45. Anyway, I was battling rayquaza and having a tough time, I was down to my last Pokemon, Groudon, and it got it to red health, no status condition, and I threw my first pokeball of the encounter(a dusk ball, my reasoning was that my clock was set to what should have been night, but I didn’t anticipate Zinnia knocking me out, which I think changes the time by 12 hours, anyway long story short, it would’ve had a catch rate of 1) and I caught it in what appeared to be a critical capture, which I hadnever, ever gotten before! In any game!What are the chances of this happening?

Pleaselog inorregisterto add a comment.

I was going to walk you through the calculations, but while calculating the chance to catch Rayquaza with a Dusk Ball, it gave me this.

So, the odds are all in there. With your critical capture, there was a 2.551% chance of it occurring and then that had a 71.306% chance of capturing it.Then, the odds of both of these occurring is about 1.82%.

Source for calculation:https://www.dragonflycave.com/calculators/gen-vi-vii-catch-rate