|Full name||Yancarlo Victorio Casas Acosta|
|Date of birth||15 July 1981|
|Place of birth||Lima, Peru|
|Height||1.72 m (5 ft 8 in)|
|Playing position||Defensive midfielder|
|Universitario de Deportes|
|2003||Universitario de Deportes||?||(?)|
|2003||Estudiantes de Medicina||?||(?)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 15 March 2012.
Casas was formed as footballer in the youth academy of Universitario de Deportes. He made his debut in the 2003 Torneo Descentralizado season. Then later that season he had a short spell with Ica based club Estudiantes de Medicina. The following season Casas returned to the capital and played the 2004 season in the Peruvian Second Division with Club Deportivo Municipal.
Then in 2005 Yancarlo returned the First Division by joining Arequipa giants FBC Melgar. Casas scored his first goal in the Descentralizado on 12 November 2005 at home in the Estadio Monumental Virgen de Chapi against Sport Boys in the 2005 Clausura, which resulted in 1–0 win for his side.
In 2007 he joined Tacna based club Coronel Bolognesi FC. Under the command of manager Freddy García, Yancarlo made his debut for Bolognesi FC in Round 5 of the 2007 Apertura in the 3–0 away loss to Total Clean FBC. He made 21 appearances and managed to score two goals in the league that season. The following season he made 24 league appearances in the 2008 Torneo Descentralizado, which was his last season with Bolo.
In January 2009, Casas joined Peruvian giants Sporting Cristal for the start of the 2009 season. He made 30 league appearances in his first season with his side finishing 10th in the Aggregate table that season. In the following 2010 season Casas played 39 matches and scored one goal, but still Sporting Cristal finished in mid-table 7th place. In his last season Yancarlo fell out of favor with the manager at the time Juan Reynoso and only managed to play in 13 league matches and 3 domestic cup matches in the 2011 season.
- "Player – Yancarlo Casas". footballdatabase.eu. Retrieved 20 January 2012.
- "Peru 2005 – Primera División". rsssf.com. 28 January 2006. Retrieved 20 January 2012.
- "FBC Melgar 1–0 Sport Boys". espn.go.com. 22 December 2009. Retrieved 20 January 2012.
- "Match: Total Clean 3–0 Coronel Bolognesi". footballdatabase.eu. 25 February 2007. Retrieved 20 January 2012.
- "Cienciano presentó su plantel 2012 a la prensa en Chinchero." (in Spanish). Cienciano.com. 15 January 2012. Archived from the original on 20 January 2012. Retrieved 20 January 2012.