Rangsan Viwatchaichok

Rangsan Viwatchaichok
	Viwatchaichok during the 2014 FIFA World Cup qualifying match against Oman at the Rajamangala Stadium
Personal information
Full name	Rangsan Viwatchaichok
Date of birth	22 January 1979 (age 45)
Place of birth	Bangkok, Thailand
Height	1.78 m (5 ft 10 in)
Position(s)	Defensive midfielder, left back
Youth career
1995–1997	Stock Exchange of Thailand
Senior career*
Years	Team
1999–2001	BEC Tero Sasana
2002	Krung Thai Bank
2003	Tobacco Monopoly
2004	Krung Thai Bank
2004–2006	Bangkok Bank
2006–2007	Geylang United
2008–2011	Buriram United
2012–2016	BEC Tero Sasana
2016–2017	Suphanburi
2022–2023	Police Tero
Total
International career
2004–2012	Thailand
Managerial career
2015–2016	BEC Tero Sasana (interim)
2017	Suphanburi (assistant)
2018–2023	Police Tero
2023–2024	Port
	*Club domestic league appearances and goals

Rangsan Viwatchaichok (Thai: รังสรรค์ วิวัฒน์ชัยโชค; RTGS: Rangsan Wiwatchaichok), born January 22, 1979), simply known as Aon (Thai: อ้น; RTGS: On) is a Thai professional football manager and former player who most recently managed Thai League 1 club Port.

Rangsan currently holds the record for the all-time most appearance in Thai League 1 with 439 appearances. He is known for his set pieces freekick back in his playing career.^[1]

Club career

Rangsan is a Thai retired professional footballer who plays as a defensive midfielder or a left back. He previously played for four other club teams in Thailand and Singapore with Geylang United.

International career

Rangsan has currently played 29 times for the senior Thailand national team, and he has scored one goal in the process.^[2]

Managerial career

BEC Tero Sasana

On 11 July 2013, BEC Tero Sasana sacked René Desaeyere and promoted Choketawee Promrut to be the club interim manager. Rangsan, who was the club captain, was also promoted to be the assistant coach.^[3]

On 9 August 2015, Rangsan was promoted to be the interim manager of BEC Tero Sasana after the removal of Kenny Shiels.^[4]

He had coached the club for three games before the appointment of Manuel Cajuda on 27 August.

On 1 December 2015, he was promoted to be the interim manager again after the resignation of Manuel Cajuda.^[5] Rangsan managed the club in the last three games of 2015 season with the record of 2 wins and 1 loss. The club set to relegate to Division 1 according to the final standing but still remained in top league after the withdraw of Saraburi from the competition.

Suphanburi

On 17 April 2017, Rangsan was appointed as assistant manager of Suphanburi under manager Adebayo Gbadebo.

Police Tero

On 23 April 2018, FOX Sports Asia reported in an article that Rangsan was appointed head coach of Police Tero following the departure of Englishman Scott Cooper. On 29 June, he was demoted to assistant under Totchawan Sripan before getting promoted to manager again on 14 September the same year.^[6]

Port

After 5 years at Police Tero, Rangsan was appointed to replace Surapong Kongthep as the manager of Thai League 1 club Port on 8 November 2023.

International goals

List of international goals scored by Rangsan Viwatchaichok
No.	Date	Venue	Opponent	Score	Result	Competition
1	18 July 2009	Nonthaburi, Thailand	Pakistan	2–0	4–0	Friendly

Managerial statistics

As of match played 2 November 2024

Managerial record by team and tenure
Team	Nat	From	To	Record
Team	Nat	From	To	G	W	D	L	GF	GA	GD	Win %
Police Tero		1 April 2018	29 June 2018	15	8	3	4	34	26	+8	053.33
Police Tero		14 September 2018	7 November 2023	161	65	41	55	227	224	+3	040.37
Port		7 November 2023	2 November 2024	39	21	12	6	82	42	+40	053.85
Total				215	94	56	65	343	292	+51	043.72