Chris Coleman acknowledged Wales were in the driving seat to win Group B and qualify for the European Championships next summer after beating Belgium on an emotional night in Cardiff.
Gareth Bale marked his 50th cap with a 25th-minute winner - his 17th goal for his country - and Wales repelled Belgium's stellar forward talent to hold on to a 1-0 victory which puts them three points clear at the top of the group standings with four games remaining.
Belgium came into the game ranked second in the world and favourites to win the group but Wales would virtually clinch their place at the Euro 2016 finals in France by beating Cyprus and Israel in their September double-header.
"I'm not getting carried away because we've got 12 points to play for," Coleman said after one of Wales' greatest-ever victories at the Cardiff City Stadium.
"But we have taken a big step forward and we can enjoy looking at the table because we are in the driving seat.
"We've taken four points off Belgium so it's no fluke, and you've got to enjoy it when you beat a fantastic side like them."
Coleman hailed the victory as "the biggest of my managerial career" and joined his players for their post-match celebrations on the pitch.