a more detailed routing question based on the 72-hour visa free transit

does this routing qualify for a 72-hour free transit policy?
OUTBOUND
San Francisco USA to Chengdu (with a stay of less than 72 hours) ...
RETURN
Chengdu to Tokyo Japan (transit) to San Francisco USA ...
The question I am asking is ... if I transit through Tokyo (NRT) for 2 hours and then board another flight to San Francisco does that meet the requirements for the policy?