Interesting you should say that atsync, and it's a plausible idea - however I heard that the AI knows what item you have on your Pokemon at all times and my Terrakion runs Air Balloon, but I still can see why that could be the reason.
It may be possible to make a good trio for the battle subway super singles in which each Pokemon's resist is another's weakness so that you could almost intentionally get the AI to over predict. Speculation but who knows.
My streak ended at 154. I'll post proof tonight.
Surely the AI doesn't know the pokemon's item until it is sent out? I doubt that the opponent would know that terrakion had air balloon until you sent it itto battle, which would explain why the opponent is happy to use earthquake. Of course, if the opponent doesn't know items until they're sent out, how would they know what you're pokemon actually are until they're sent out (and hence use earthquake to catch terrakion off guard)?
All this considered, I think I've put too much into this and I doubt there is some method to cause the opponent to overpredict. For me, it's just easier to not switch out until I know it's safe (or I have no choice). It works most of the time!
Nice streak by the way. I just beat my previous record and am sitting on 91 wins now. Hopefully I can go further.
EDIT: Nevermind, just lost at 94 wins because 5 consecutive turns of full paralysis allowed for scrafty to set up on me with bulk up and sweep me >:(