Britain's George Morgan and Croat Mate Pavic hit back from a set down to beat Oli Golding and Jiri Vesely and become Wimbledon boys' doubles champions.
Fellow-Brit Golding and world junior number one Vesely were top seeds and comfortably took the opening set.
But Morgan, runner-up last year, and Pavic were undaunted and raised their game to take the match into a decider.
Golding and Vesely recovered after trailing 2-0 but Morgan and Pavic were relentless and triumphed 3-6 6-4 7-5.
"It is the best feeling in my career, playing on Court One and winning a really tight match against two really good players," Morgan said.
"At the start I was a little bit nervous because it was a big court and a big crowd but as soon as I got into the match I was fine. We just tried to keep positive after losing the first set.
"I want to get my ATP ranking up quite a lot [currently 996] by playing Futures and Challengers and would like to play Wimbledon qualifying again. "
It was an impressive turnaround for the second seeds having been outplayed for the first half of the match.
And it was a welcome victory for 18-year-old Morgan, who was beaten in last year's final alongside Lewis Burton against Liam Broady and Tom Farquharson in an all-British clash.
On Sunday, Morgan came face to face with compatriot Golding and, despite being brushed aside in a 27-minute first set, his heavy serve helped to level the match at one-set all.
The top seeds began to lose control and although Golding showed great nerve in holding serve when facing match point at 4-5, their defeat followed soon after.
At 6-5 and with a second Championship point, the increasingly confident Morgan surged to the net and had the satisfaction of hitting the winner.
After suffering a year ago in the final, Morgan added: "I know how Olive feels after it happened to me last year, and I feel bad for him.
"Mate and I started together this year and won the tournament before the Australian Open and got good confidence from that, so will play together for the rest of the year."