Therdsak Chaiman

In 2002, he was loaned out to SAFFC in 2002 and proceeded to win the S.League player of the year. In 2003, Therdsak led BEC Tero Sasana to the final of the AFC Champions League against Al Ain FC in 2003. He scored against Taejon Citizen and Shanghai Shenhua in the process and was named the 2003 AFC Champions League most valuable player. In 2004, Therdsak secured a move to Vietnam's East Asia Bank but did not settle well due to a stomach muscle injury which kept him out for seven months. He promptly rejoined his former club SAFFC in 2005 despite interest from Home United Football Club. Despite his diminutive frame, Therdsak has proved to be more than capable to play with the bigwigs of international football, and at his peak, impressing many with his surging runs, vision and shot technique not often seen among footballers of his region. Therdsak officially announced his retirement from professional football on 19 November 2017 after end of Thai League 1 season 2017 with quit of the manager job at Chonburi.

On 21 December 2015, Chonburi appointed Therdsak as head coach, replacing Jadet Meelarp. He made the official managerial debut on 2 February 2016 in an AFC Champions League qualification match against Yangon United, where Chonburi won 3–2 at home after extra time. They then lost 0–9 to FC Tokyo from Japan and failed to reach the AFC Champions League's final stages.

Therdsak served Thailand in international football from 1994 to 2010, winning two AFF Championships and playing at three AFC Asian Cups, the last of which Thailand co-hosted in 2007. He also played for the Thailand national futsal team.

As player

BEC Tero Sasana Thai Premier League (2): 2000, 2001-02 Thai FA Cup (1): 2000 Kor Royal Cup (1): 2001 Singapore Armed Forces S.League (5): 2002, 2006, 2007, 2008, 2009 Singapore Cup (2): 2007, 2008 Chonburi Thai FA Cup (1): 2010 Kor Royal Cup (2): 2011, 2012

International

Thailand AFF Championship (2): 2000, 2002

Individual

AFC Champions League Most Valuable Player : 2002–03 AFC Futsal Championship Top Scorers : 2000 AFF Championship Most Valuable Player : 2002 ASEAN Club Championship Most Valuable Player: 2003 Thai Premier League Player of the Month : May 2010

As manager

Chonburi

Thai FA Cup: 2016 Uthai Thani

Thai League 3: 2021–22 Thai League 3 Northern Region: 2021–22

Individual

Thai League 3 Coach of the Year: 2021–22