Wales top their League of Nations group after beating the Republic of Ireland 1-0 at Cardiff City Stadium on Sunday.
A point will be enough for Wales on Wednesday night against Finland to win Group 4 League B and gain promotion to League A.
Wales have not lost in their last 10 competitive games, keeping 7 consecutive clean sheets.
David Brooks scored the only goal of the game after 66 ‘, a header in the six yard box following a Neco Williams to cross, with Kieffer Moore drawing two defenders and Gareth Bale heading the ball into Brooks’ path.
Wales will welcome Finland to Cardiff City Stadium on Wednesday, November 18 with the match live on S4C at 7.25