Johnny Williams’ first international goal gave Wells a 1-0 Nations League victory over Bulgaria in Sofia.
Finland topped Group B4 with 10 points from four games after finishing ninth in a 1-0 win over the Republic of Ireland.
House name Johnny Williams’ cross when Neko Williams hit the stoppage was a familiar diving feeling for Bulgaria, who lost in Cardiff last month.
Within five weeks, five minutes from Neko Williams’ time, Johnny Williams won his 25th cap and put out a great performance on a nearby post.
Wales also had the satisfaction of keeping the sixth consecutive clean sheet in competitive football.
It is now 621 minutes of football as Croatian striker Nicola Vlasic was the last player to score a match goal against Wales.
There was a tentative look at a Wales team without injured quartet Gareth Bale, David Brooks, Joe Allen, Hal Robson-Canu, and the suspended pair of Joe Morel and Kiefer Moore.
Juventus midfielder Aaron Ramsey has been ruled out of the goalless draw against the Republic of Ireland on Sunday, with Ben Davies taking over as captain.
Connor Roberts fell to the bench after Liverpool teen mogul Neko Williams made his first start and looter Rice Norrington-Davis made his debut.
Chris Mepham returned from injury and Tyler Roberts was responsible for leading the attack in the absence of his mother.
Bulgaria have suffered a poor run in the last two years, winning only once in 18 games and scoring just one point from three Nations League games.
Despite the corona virus outbreak, 8,500 fans were allowed to attend, but there was a sparse turnout at the Vasil Levsky National Stadium.
Wales worked with an unfamiliar back three, and with a series of set pieces, Joe Roden hooked one over the crossbar.
Norrington-Davis and Neko Williams delivered the width, and the second picked Tyler Roberts for a header, which was collected by home goalkeeper Nikolai Mikhailov on his crossbar.
Neco Williams excelled as Wales dominated possession and fashion opportunities.
Harry Wilson wasted a stunning free-kick, sent 20 yards out from a central position, and Daniel James’ low drive was widely deflected.
After the ball won, a booking for Captain Davis, following Christian Malinov, was very much in control of Wales.
Davis was clearly upset at the decision of Azerbaijani referee Aliyar Agayev, but it raised the Bulgarian hack and temperature.
At the start of the second half the home players were watching again as James Xinho broke down to get a booking for the Manchester United winger.
Wilson was also cautious before testing Mikhailov on a 25-yard free kick, but Bulgaria came close when Kirill Despodov’s unmarked Boshidar Kreve was deflected in front of goal.
Rabbi Matondo made an instant impression with a curling shot for James, but his lasting impression of the night was burning from a few yards away.
Wales had to deal with the last 10 minutes with a new goalkeeper as Adam Davis replaced the injured Wayne Hennessy.
But they still had time to win the game, regain first place in the group and extend the unbeaten run in competitive football to nine games.