Escape Chance Formula In Atypical Circumstances

[Dark Matter]

Bulbapedia lists the formula the games use to determine the chance you can run from a wild battle when facing a single Pokémon, with one Pokémon of your own currently facing it. However, there are two situations for which this formula will not work and I can find no mention of the procedure to calculate the escape rate in these situations, on any resource.

In a double battle (initiated in Dark Tall Grass) with wild Pokémon, how is the escape rate calculated. Here, there are two opposing Pokémon and two of your own Pokémon. Is the same formula used, with some combination of speeds used instead of individual speeds, or is a different formula entirely used?

In any wild battle, if your Pokémon faints, you are given the opportunity to run instead of sending in a new Pokémon. In this case, you have no Pokémon—so there is no speed value to use for your Pokémon. What formula is used in this case?

I understand this is probably not common knowledge, but if there is anyone who knows how these rates are calculated (or how they could be found out), I'd be very grateful! Thank you!

 

[Ziggy Stardust]

Not sure about the double battle case, but I'm pretty sure from experience that in case of fainting, the formula still takes the fainted Pokémon's Speed value.

 

[Dark Matter]

All right—that would make sense, thanks! At the moment, I'm assuming that it just takes the maximum speed from both sides in the case of multi-Pokémon battles, but it's quite difficult to check this.