16 December 1988|
|Highest ranking||89 (June 2017)|
2016 English Open
|Best ranking finish||Last 32 (2016 English Open)|
At the 2014 Six-red World Championship Lertsattayathorn defeated defending champion Mark Davis in the last 16 before being defeated 7–2 eventual winner Stephen Maguire in the semi-final. In 2016 Lertsattayathorn entered the Asian Snooker Championship in Doha as the 13th seed. Lertsattayathorn went on to reach the final and defeated Mohammed Shehab 8–2 to win the championship, as a result he was given a two-year card on the professional World Snooker Tour for the 2016/2017 and 2017/2018. At the 2016 English Open, Lertsattayathorn beat compatriot Boonyarit Keattikun 4–3 and Michael White 4–1. In the third round he was 3–2 up on Ricky Walden, but then lost the final two frames. Walden also beat Lertsattayathorn by a 4–3 scoreline in the second round of the Northern Ireland Open. He lost all five of his matches in the rest of the season.
Performance and rankings timeline
|Ranking||[nb 1]||[nb 1]||[nb 2]||88|
|China Championship||Not Held||NR||A|
|Paul Hunter Classic||Minor-Rank.||A||A|
|World Open||Not Held||A||LQ|
|European Masters||Not Held||LQ||WD|
|English Open||Not Held||3R||A|
|Northern Ireland Open||Not Held||2R||A|
|Scottish Open||Not Held||1R||A|
|World Grand Prix||NR||DNQ||DNQ||DNQ|
|Variant format tournaments|
|Six-red World Championship||SF||A||1R||A|
|Performance Table Legend|
|LQ||lost in the qualifying draw||#R||lost in the early rounds of the tournament
(WR = Wildcard round, RR = Round robin)
|QF||lost in the quarter-finals|
|SF||lost in the semi-finals||F||lost in the final||W||won the tournament|
|DNQ||did not qualify for the tournament||A||did not participate in the tournament||WD||withdrew from the tournament|
|NH / Not Held||means an event was not held.|
|NR / Non-Ranking Event||means an event is/was no longer a ranking event.|
|R / Ranking Event||means an event is/was a ranking event.|
|MR / Minor-Ranking Event||means an event is/was a minor-ranking event.|
- He was an amateur.
- New players on the Main Tour don't have a ranking.
Amateur finals: 1 (1 titles)
|Outcome||No.||Year||Championship||Opponent in the final||Score|
|Winner||1.||2016||Asian Amateur Championship||Mohammed Shehab||8–2|
- "WORLD RANKINGS After 2017 Kaspersky Riga Masters". World Snooker. Retrieved 3 July 2017.
- "Career-total Statistics for Kritsanut Lertsattayathorn – Professional". CueTracker Snooker Results & Statistics Database. Retrieved 13 November 2016.
- "Kritsanut Lertsattayathorn". World Snooker. 20 March 2017. Retrieved 20 March 2017.
- "Kritsanut Lertsattayathorn 3–4 Ricky Walden". World Snooker. Archived from the original on 16 March 2017. Retrieved 11 April 2017.
- "Kritsanut Lertsattayatthorn 2016/2017". Snooker.org. Retrieved 11 April 2017.
- Kritsanut Lertsattayathorn at CueTracker.net: Snooker Results and Statistic Database