Hingis and Mirza, the No.1-ranked team in the world and top seeds at the Premier-level tournament, faced some resistance - Andreja Klepac and Alla Kudryavtseva, the No.4 seeds, jumped out to an early 2-0 lead and, after dropping the first set, were a game away from winning the second set up 5-4.
But Hingis and Mirza did all the right things at all the right times and closed it out, 6-3, 7-5.
"I think we're off to a great start in the new season," Hingis said. "We never really felt like we finished in 2015 - I played the Indian league and Sania played IPTL, so we still kind of kept our routine.
"We're really happy to have the possibility to be in another final, and win another title."
Hingis and Mirza's 25-match winning streak, which has brought them five titles in a row at the US Open, Guangzhou, Wuhan, Beijing and the WTA Finals, is the longest winning streak since Sara Errani and Roberta Vinci's 25 in a row in 2012 - the Italians also won five titles in a row, at Barcelona, Madrid, Rome, the French Open and 's-Hertogenbosch (the winning streak was snapped at Wimbledon).
"It's been a long time since we've lost, but it's never easy to start a new season, especially when you're coming off such a great season. Everyone's gunning for us - we're the hunted," Mirza commented.
"We're just taking it one match at a time, staying positive, and picking up from where we left off."
Hingis and Mirza will face the all-German team for the first time in the final Saturday night.
? WTA (@WTA) January 8, 2016