The continent's football governing body CAF disqualified the Darling Scorpions from the sub-regional football championship after accusing them of using over-age players.
The Gambia U-17 team thumped Mauritania 2-0 in their final group A match after losing to Senegal 4-2 in their opening game.
The Darling Scorpions have never won the WAFU zone A U-17 football tournament since the inception of the championship some years ago.
Meanwhile, The Gambia won the Africa U-17 Youth Championship twice in their history in 2007 and 2009 respectively.