Thai League 3 Play-off Round is last promotion quota of Thai League 2. Thai Football clubs, which is runner-up of 2017 Thai League 3 Upper Region and runner-up of 2017 Thai League 3 Lower Region, pass to 2017 Thai League 3 Play-off Round. This round plays Home-Away match. Thai Football clubs get more total scores when finish Home-Away match to promote Thai League 2. Away goals rule is used to this tournament.
3rd Position of Play-off round
1st Position of Play-off round
Winner 2017 Thai League 3Samut Sakhon1st title
References
Official T3 Play-off rule http://www.thailandsusu.com/webboard/index.php?topic=386949.0 http://www.thailandsusu.com/webboard/index.php?topic=386920.0 Article title
http://www.thailandsusu.com/webboard/index.php?topic=387058.0 http://www.thailandsusu.com/webboard/index.php?topic=387074.0
External links official web of T3 Play-off round