Kerber managed with a 6:4, 7:6 (8:6) how twelve months ago the balance in the duel with Bencic, who is now number 18 in the world rankings.
In the Hopman Cup final in a mixed doubles match in Sydney Australia, the Swiss man, alongside compatriot Belinda Bencic, went up against Greek pair Stefanos Tsitsipas and Maria Sakkari.
Thanks to the Fast4 format, the final match culminated in a championship point for both teams simultaneously: At 4-4 in the third-set tiebreak between Switzerland and Germany, it was truly victor take all.
Federer first won the Hopman Cup back in 2001 against the US when he paired with Martina Hingis.
It was the second straight year Germany had lost to Switzerland in the final, but Zverev is in much better form this summer.
The 20-times Grand Slam victor took the opening set with a single break of serve to ensure that the German was immediately under the cosh.
For a second time Kerber was unable to serve out the match, as Bencic forced it to a tie-break.
Bencic started the second set just like the first, offering a break in the first game, but hung on through deuce for 2-3. Zverev said as those inside the stadium roared with laughter.
"I'm one of the top 10 favourites". But in the end, the experience and athleticism of Kerber proved just enough to seal the match, 7-6 (6), with a final victor.
While tennis fans across the globe will never grow exhausted of watching Roger Federer triumph, the novelty has well and truly worn off among the Swiss maestro's rivals. "I'm a bit surprised that the matches have gone as well as they have", he said.
Roger Federer defeated Serena Williams in a mixed doubles match on New Year's Day.
"It's going to be the last matches in my career and I try to enjoy every point that I play", Ferrer, who is set to retire this year, said.
The last German victory in the unofficial Mixed championship, which will be replaced by the newly created ATP-Cup, had brought in 1995, Anke Huber and Boris Becker, in 1993, Steffi Graf and Michael Stich had been for the first time for Germany.