[3] Despite leading the division for most of the season, they slipped to second on the final day as they drew 1–1 at home with Nakhon Phanom whilst title rivals Loei City beat Chaiyaphum United 1–0 meaning that Loei took the title and the sole promotion play-offs spot on the final day of the season.

Head coach Mann Jantanarm resigned after the 4–0 away defeat to Buriram and was replaced by a member of the backroom staff, Vichan Cha-on Sri.

Midway through the season, the club was docked nine points for fielding an ineligible player (goalkeeper Kiattisak Lertwilai).

[5] Despite the deduction, and thanks to the re-signing of Prompong Kransumrong,[6] the side recovered from the penalty and clinched a place in the end-of-season play-offs (the 'Champions League') by defeating Mahasarakham 1–0 on the final day of the season.

[7] Nakhon Ratchasima were placed in Group B of the Champions League along with fellow Isaan side Roiet, Rayong, Krabi, Lamphun and North Bangkok.

Korat went on to win seven, draw one and lose two of their Champions League matches, and finished top of the group on 22 points.

As such, promotion to 2012 TPL Division 1 was secured along with runners-up Krabi, and Ratchaburi and Pattalung from Group A. Nakhon Ratchasima's first season back in the second tier ended with an eighth-place finish in 2012.

In 2022, Englishmen head coach Kevin Blackwell steered Nakhon Ratchasima all the way to the 2022 Thai FA Cup final.

The club managed to contain the entire match in a goalless contest against Buriram United, however in the 115th minute, they break the deadlocks and ended up Nakhon Ratchasima coming out as runner-ups in the cup.

The club originally played at the Suranaree Base Central Stadium close to Nakhon Ratchasima city centre.

The club was extensively promoted and publicized around the city with the result that attendances have been in excess of 1,000 since just 258 turned up to watch the match against Roi Et FC in May 2009.