| Organising body | Turkish Football Federation (TFF) |
|---|---|
| Founded | 1963; 62 years ago (1963) |
| Country | Turkey |
| Confederation | UEFA |
| Number of clubs | 20 (18 since 2026–27) |
| Level onpyramid | 2 |
| Promotion to | Süper Lig |
| Relegation to | 2. Lig |
| Domestic cup | Turkish Cup |
| Current champions | Kocaelispor (4th title) (2024–25) |
| Most championships | Samsunspor (7 titles) |
| Broadcaster(s) | beIN Sports,TRT |
| Website | 1. Lig |
| Current:2025–26 TFF 1. Lig | |
TheTFF 1. Lig (lit. 'TFF 1st League'), currently referred to asTrendyol 1. Lig for sponsorship reasons,[1] is the second level of theTurkish football league system. The league was founded in 2001 as theTurkish Second League Category A after the reorganization of theSecond Football League, which was the second level of the Turkish league system between 1963 and 2001. The league was calledTürk Telekom Lig A in the 2006–07 season, and was renamed toTFF 1. Lig prior to the 2007–08 season. As of 16 January 2008 the league was renamed asBank Asya 1. Lig.[2][3] In April 2012Bank Asya withdrew as sponsor of the league.[4] During the 2012–2016 seasons the league was known under the terms of a sponsorship deal as thePTT 1. Lig.[5][6]
Before the 2005–06 season, the top three teams were promoted toSüper Lig and the bottom three teams were relegated to theTurkish Second League Category B. Since the 2005–06 season through2008–09, the top two teams are directly promoted to theSüper Lig, the teams finishing 3rd through 6th competed in a play-off. The third-placed team played a match with the sixth-placed team, while the fourth-placed team played against the fifth-placed team. The winners of both matches then played against each other to decide the third team that was promoted. In2009–10 the third team was determined by play-off group games, in which the 3rd, 4th, 5th and 6th teams of normal season played in a one-game league system in a neutral venue. In2010–11 play-off status changed again and elimination match system came back but this time on a two-leg (home and away) basis.
In the2022–23 season, the 3rd team will advance directly to the play-off final and the teams finishing 4th through 7th will compete in the play-off. The fourth-placed team will play against the seventh-placed team, while the fifth-placed team will play against the sixth-placed team in a one-game format, in the home grounds of the 4th and 5th teams. In the next round, the qualified teams will compete in a two-legged format to advance to the final. The final will be held in a neutral venue.[7]
| Bold | Promoted toSüper Lig |
| Direct promotion | |
| Play-off winners | |
| Play-off finalists |
1Play-off winners.