He debuted in the Costa Rican league at the age of 18 with LD Alajuelense. In the 1995–96 season, he scored 14 goals and played 41 games, and followed up the next season with 21 goals in 27 matches. He was scouted by Dutch club Ajax Amsterdam and after that, invited for a trial by their big rivals Feyenoord. But Ajax signed him in 1997 for around 4.5 million euros in spectacular fashion after 'kidnapping' him from Amsterdam Airport under Feyenoord's nose. However, the promising youngster was not a success in Dutch football, only playing twice for Ajax. He was suspended by Ajax after his first season until his contract ended (almost three years later). Signed for Cerro Porteño. Afterwards, he went back toCosta Rica where he surprisingly signed for Saprissa (Alajuelense's archrival). After Saprissa, he played in Bolivia with The Strongest, he soon became an important piece of the starting line-up, playing the Copa Libertadores.
Afterwards he returned to LD Alajuelense and became CONCACAF Champions' Cup's champion in 2004. Ledezma became part of the starting line-up and led the team to their league championship in the 2004–05 season. He started up the 2005–06 season with LD Alajuelense but was loaned to Greek team Akratitos for six months (January – June 2006), then he was bought by Austrian club SC Rheindorf Altach. He had an acceptable campaign and by the end of the season he was sold again to FC Augsburg. On a quick transaction he was transferred to VfB Admira Wacker Mödling.
In 2009, after Costa Rica's national team's poor performance under Hernán Medford's direction, a new head coach, Rodrigo Kenton, was hired and he called Froylán Ledezma back to the national team where he had a quite good performance.
Ledezma was released from VfB Admira Wacker Mödling in December 2009, and played for Costa Rican club Club Sport Herediano during season 2009–10. After just five months in Club Sport Herediano he was called back from VfB Admira Wacker Mödling. He started playing well in Austrian second division and he won along with his team the promotion to the 1st league. He played just a few games as substitute in the 2011 season but then he suffered a shoulder injury which left him out of play for around four months. After he recovered from the injury, he decided to end his contract with VfB Admira Wacker Mödling and to move back to Costa Rica to play with LD Alajuelense.
Ledezma played for Costa Rica in the 1997 FIFA World Youth Championship held in Malaysia. He has appeared 13 times for the full Costa Rica national football team and helped win the UNCAF Nations Cup 1999. He has also appeared in three qualifying matches for the 2006 FIFA World Cup and two qualifying matches for the 2010 FIFA World Cup.
- Primera División de Costa Rica (3):
- 1995–96, 1996–97, 2004–05
- Copa Interclubes UNCAF (2):
- 1996, 2005
- UNCAF Nations Cup (1):
- Liga de Fútbol Profesional Boliviano (1):
- CONCACAF Champions' Cup (1):
- Scores and results list. Costa Rica's goal tally first.
|1.||17 March 1999||Estadio Nacional, San José, Costa Rica||Belize||3–0||7–0||UNCAF Nations Cup|
|2.||17 March 1999||Estadio Nacional, San José, Costa Rica||Belize||4–0||7–0||UNCAF Nations Cup|
|3.||4 June 2004||Carlos Ugalde Álvarez, San Carlos, Costa Rica||Nicaragua||2–1||5–1||Friendly|
|4.||6 September 2008||Estadio Ricardo Saprissa, San José, Costa Rica||Suriname||1–0||7–0||World Cup|
|5.||6 September 2008||Estadio Ricardo Saprissa, San José, Costa Rica||Suriname||2–0||7–0||World Cup qualifier|
|6.||23 July 2009||Soldier Field, Chicago, USA||Mexico||1–1||1–1||CONCACAF Gold Cup|