David Greene emulated Welsh training mate Rhys Williams to claim the 400m hurdles title at the European Under-23 Championships in Debrecen, Hungary.
Greene recovered from an ankle injury to compete in Hungary
The Swansea Harrier led all the way to win in a lifetime best 49.58 seconds.
But only a desperate lunge earned the 21-year-old from Llanelli gold ahead of Frenchman Fadil Bellaabouss, who was given the same time on Saturday.
The bronze medal went to Milan Kotur of Croatia, who pipped Greene for the 2005 European Juniors title.
It was a sensational return from a six-week injury lay-off for Greene in only his second race since injury threatened to wreck his season - his first was Friday night's semi-final.
"The semi-final gave me a lot of confidence and I knew if I executed my race properly and made the first 250m hard, I should be able to hang on," Greene said.
"I lost concentration in the home straight and stepped into the last hurdle a little bit. But I did manage to hold on."
He follows Williams, who won the title in 2005, and another Welshman Matt Elias (2001) by taking gold in the event.
Greene was forced to pull out of last month's Spar European Cup in Munich with an ankle injury.
The Welsh contingent in the Norwich Union Great Britain and Northern Ireland team was completed by 400m runner Faye Harding and pole vaulter Paul Walker.
Wrexham's Harding, a student at Loughborough University, finished seventh in Friday's final in a time of 53.70seconds.
Walker, from Rhoose, jumped a season's best 5.15m in Friday's heat but that proved 10cm too short to make the final.
At the Welsh Senior Championships in Cwmbran on Saturday, Brett Morse put in a confidence-boosting performance by winning gold in both shot and discus.
The 19-year-old will be on international duty this week as he heads to the Netherlands to compete in the European Junior Championships.
Rhondda's Carys Parry broke the first Championship record of the day in the hammer with a throw of 63.09. Welsh team-mate Laura Douglas finished in second with 58.26.
Anwen Rees of Carmarthen was also in record-breaking form, celebrating her 22nd birthday by winning the 400m hurdles title for the fourth consecutive year and delivering a Championship best.
Olympian Philippa Roles seized discus gold with a Championship best of 59.08.
Newport's Chris Gowell stepped up from his preferred 800m to take the 1500m title in 3:57:62:
In the sprint events, 19-year-old UWIC student Andrew Watkins triumphed in the 200m, while London-based Philip Doorgachurn won gold in the 100m.
Wales' Lucy Evans returned home to Chester with double gold under her belt. The 24-year-old part time Masters student was victorious in the 100m and 200m.