After reading as much as I can find and reviewing TimaticWeb, I'm fairly certain I'm eligible for TWOV for my upcoming trip. But I'm a little nervous and wouldn't mind some 3rd party confirmations from those more knowledgeable!

AA MIA-ORD
AA ORD-PEK-(70 hours in Beijing)-NRT-ORD
AA ORD-MIA

I believe the separate MIA-ORD-MIA ticketing is irrelevant, and I believe the return connection at NRT (2 hours) qualifies me with the third country requirement. Am I missing anything?