2012–13 I liga
The 2012–13 I liga was the 65th season of the second tier domestic division in the Polish football league system since its establishment in 1949 and the 5th season of the Polish I liga under its current title. The league was operated by the Polish Football Association.
The league is contested by 18 teams who competing for promotion to the 2013–14 Ekstraklasa. The regular season was played in a round-robin tournament. The champions and runners-up would receive promotion. The bottom four teams were automatically demoted to the II liga.
According to the competition rules, all clubs are required to field at least one youth player in every game.
On 28 February 2013 the Disciplinary Commission of the Polish FA suspended the ŁKS's license to compete in the I liga, because of non-payment of salaries to former players. Since the club's appeal was unsuccessful, on 5 April the Polish FA announced the cancellation of Warta–ŁKS game on the 22nd match day. On 10 April the club announced its withdrawal from the I liga. As ŁKS had already played over 50% of their games, according to the rules of I liga, they will be ranked in the final league table, with the cancelled games counted as lost 0–3.
Changes from last season
From I liga
Promoted to 2011–12 EkstraklasaRelegated to II liga, Group East
Relegated to II liga, Group West
Withdrew
To I liga
Relegated from 2011–12 EkstraklasaPromoted from II liga, Group East
Promoted from II liga, Group West
Additionalnotes
Before the start of the season Ruch Radzionków withdrew from 2012–13 I liga, citing financial problems. The club also withdrew its reserve team from Bytom region Klasa A. However, Ruch will be able to join the 2013–14 III liga, after a one-year suspension.Ruch's I liga spot was taken by another Silesian club, Polonia Bytom, the highest placed team of the previous season's I liga relegation zone.
Team overview
Stadiums and locations
| Team | Stadium | Capacity |
| Arka Gdynia | Stadion Miejski | 15,139 |
| Cracovia | Stadion im. Józefa Piłsudskiego | 15,016 |
| Dolcan Ząbki | Stadion Miejski | 2,100 |
| Flota Świnoujście | Stadion Miejski | 4,500 |
| GKS Bogdanka | Stadion Górnika | 7,200 |
| GKS Katowice | Stadion GKS Katowice | 9,511 |
| GKS Tychy | Stadion Miejski w Jaworznie | 7,000 |
| Kolejarz Stróże | Stadion Kolejarza | 2,000 |
| ŁKS Łódź | Stadion ŁKS | 7,000 |
| Miedź Legnica | Stadion im. Orła Białego | 6,244 |
| Okocimski KS Brzesko | Stadion Miejski | 3,000 |
| Olimpia Grudziądz | Stadion Centralny | 5,250 |
| Polonia Bytom | Stadion im. Edwarda Szymkowiaka | 6,000 |
| Sandecja Nowy Sącz | Stadion im. Ojca Władysława Augustynka | 5,000 |
| Stomil Olsztyn | Stadion Miejski | 16,800 |
| Nieciecza | Stadion Nieciecza | 2,093 |
| Warta Poznań | Stadion Lecha | 41,609 |
| Zawisza Bydgoszcz | Stadion Miejski im. Zdzisława Krzyszkowiaka | 20,247 |
Personnel and sponsoring
- Kolejarz displays the charity's logo on their kit.
Season statistics
Scoring
- First goal of the season: Zbigniew Zakrzewski for Miedź against Bogdanka
- Largest winning margin: 6 goals
- *ŁKS 1–7 Flota
- Highest scoring game: 8 goals
- *ŁKS 1–7 Flota
- Most goals scored in a match by a single team: 7 goals
- *ŁKS 1–7 Flota
- Most goals scored in a match by a losing team: 2 goals
- *Stomil 2–3 Kolejarz
- *Kolejarz 2–3 Dolcan
Clean sheets (club)
- Most clean sheets: 16
- *Termalica
- Fewest clean sheets: 2
- *ŁKS
Discipline
- Most yellow cards : 97
- * Sandecja Nowy Sącz
- Most yellow cards : 11
- * Tomáš Pešír
- Most red cards : 10
- * Stomil Olsztyn
- * Warta Poznań
- Most red cards : 2
- * Martin Baran
- * Paweł Baranowski
- * Michał Benkowski
- * Grzegorz Fonfara
- * Michał Masłowski
- * Michał Nalepa
- * Marcin Pietroń
- * Dawid Sołdecki
- * Łukasz Skrzyński
- * Dawid Szufryn
- * Maciej Wichtowski
- * Konrad Wieczorek