After graduating in 2011, Lansdowne took a break from his basketball career until 2015, when he signed a contract with Pioneros de Delicias, a minor Mexican team.

[2] Lansdowne attended Sandia High School, where he played at the point guard and small forward positions;[3] in his junior season in 2005–06 he averaged 4.9 rebounds and 3.7 assists per game,[4] and was an All-Metro Honorable Mention.

[2] After graduating high school, Lansdowne decided to attend Fort Lewis College in Durango, Colorado, a program competing in the NCAA Division II.

In his freshman year with the Fort Lewis Skyhawks, Lansdowne averaged 7.8 points, 2.9 rebounds and 1 assist per game, starting 1 out of 30 games,[3] and was named RMAC West Division Freshman of the Year.

[5] In his sophomore season, Lansdowne was a preseason All-Division first team selection; he became a starter and increased his averages to 16 points, 4.9 rebounds and 2.5 assists per game.

[3] After graduating from Fort Lewis, Lansdowne had decided to try to play professional basketball, but the agency he had signed with did not receive calls about possible contracts for him, and he decided to continue his studies and he also started working as a bricklayer and laborer.

[10] For the following season, Lansdowne increased his scoring average to 19.3 points over 32 regular season games: the team reached the playoffs, where Lansdowne received limited playing time (17 minutes per game) and averaged 7.5 points in 2 appearances.

[16] On June 26, 2023, Lansdowne put pen to paper on a contract with German Bundesliga side Niners Chemnitz.