The English Football League One (often referred to as League One for short or Sky Bet League One for sponsorship reasons) is the second-highest division of the English Football League and the third tier overall in the entire English football league system.
League One was introduced for the 2004–05 season. It was previously known briefly as the Football League Second Division and for much longer, prior to the advent of the Premier League, as the Football League Third Division.
- Accrington Stanley – Fraser Eagle Stadium
- AFC Wimbledon – Kingsmeadow
- Blackpool - Bloomfield Road
- Bristol Rovers – Memorial Stadium
- Burton Albion – Pirelli Stadium
- Charlton Athletic – The Valley
- Crewe Alexandra – Alexandra Stadium (Gresty Road)
- Doncaster Rovers – The Keepmoat Stadium
- Fleetwood Town – Highbury
- Gillingham – Priestfield Stadium
- Hull City – KC Stadium
- Ipswich Town – Portman Road
- League One Grounds
- Lincoln City – Sincil Bank
- Milton Keynes Dons – Stadium MK
- Northampton Town – Sixfields
- Oxford United – Kassam Stadium
- Peterborough United – London Road
- Plymouth Argyle – Home Park
- Portsmouth - Fratton Park
- Rochdale – Spotland
- Shrewsbury Town – Prostar Stadium
- Sunderland – Stadium of Light
- Swindon Town – County Ground
- Wigan Athletic – DW Stadium
EFL League Two Structure
There are 24 clubs in League One. Each club plays every other club twice (once at home and once away).
Three points are awarded for a win, one for a draw and zero for a loss.
At the end of the season, a table of the final League standings is determined, based on the following criteria in this order: points obtained, goal difference, goals scored, an aggregate of the results between two or more clubs (ranked using the previous three criteria) and, finally, a series of one or more play-off matches.
At the end of each season the top two clubs, together with the winner of the play-offs between the clubs which finished in 3rd–6th position, are promoted to EFL Championship and are replaced by the three clubs that finished at the bottom of that division.
Similarly, the four clubs that finished at the bottom of EFL League One are relegated to EFL League Two and are replaced by the top three clubs and the club that won the 4th–7th place play-offs in that division.