Regional 1 South Central
Regional 1 South Central is a level five league in the English rugby union system, with the twelve teams drawn from across southern and South East England. The other level five leagues are Regional 1 Midlands, Regional 1 North West, Regional 1 North East, Regional 1 South East and Regional 1 South West.
Prior to 2022, Regional 1 South Central and Regional 1 South East were part of a unified level five league known as London & South East Premier.
London Welsh are the champions and are promoted to National League 2 East
Format
The twelve teams in this league are drawn from across southern England, with the league champions promoted to National 2 East. The league's bottom two teams are relegated to either Regional 2 Thames or Regional 2 South Central depending on their geographic location. The season runs from September to April and comprises twenty-two rounds of matches, with each club playing each of its rivals home and away. The results of the matches contribute points to the league table as follows:- 4 points are awarded for a win
- 2 points are awarded for a draw
- 0 points are awarded for a loss, however
- 1 losing point is awarded to a team that loses a match by 7 points or fewer
- 1 additional point is awarded to a team scoring 4 tries or more in a match
2025–26 season
Departing were London Welsh, promoted to National 2 East while Brighton and Horsham were relegated to Regional 2 South East.Participating teams and locations
| Team | Ground | Capacity | City/Area | Previous season |
| Bracknell | Lily Hill Park | 1,250 | Bracknell, Berkshire | 6th |
| Camberley | Watchetts Recreation Ground | Camberley, Surrey | 4th | |
| CS Rugby 1863 | King's House Sports Ground | Chiswick, London | 3rd | |
| Farnham | Wilkinson Way | Farnham, Surrey | Promoted from Regional 2SC | |
| Hammersmith & Fulham | Hurlingham Park | Fulham, London | 9th | |
| Jersey | St Peter | Saint Peter, Jersey | Runners-up | |
| London Scottish Lions | King's House Sports Ground | Chiswick, London | Promoted from Regional 2 Thames | |
| Maidenhead | Braywick Park | 1,750 | Maidenhead, Berkshire | 7th |
| Old Alleynians | The Common | Dulwich, London | 8th | |
| Tunbridge Wells | St Marks Recreation Ground | 3,000 | Royal Tunbridge Wells, Kent | 10th |
| Wimbledon | Beverley Meads | 1,000 | Wimbledon, London | 5th |
| Worthing Raiders | Roundstone Lane | 1,500 | Angmering, West Sussex | Relegated from National 2 East |
2024–25 season
Departing were Havant, promoted as champions replaced by Wimbledon who were relegated from National League 2 East. Also departing are Bournemouth who were relegated to Regional 2 South Central. Marlborough transferred across to Regional 1 South West. Ordinarily Horsham would have dropped to Regional 2 South East but due to obtaining the highest amount of points across those finishing in a relegation place they earned a reprieve as the demise of Jersey Reds meant there was a corresponding adjustment across multiple leagues.Joining the league are Jersey and Old Alleynians who were promoted as champions of Regional 2 South Central and Regional 2 South East respectively.
Participating teams and locations
| Team | Ground | Capacity | City/Area | Previous season |
| Bracknell | Lily Hill Park | 1,250 | Bracknell, Berkshire | 5th |
| Brighton | Waterhill Playing Fields | Brighton, East Sussex | 7th | |
| Camberley | Watchetts Recreation Ground | Camberley, Surrey | 2nd | |
| CS Rugby 1863 | King's House Sports Ground | Chiswick, London | 6th | |
| Hammersmith & Fulham | Hurlingham Park | Fulham, London | 10th | |
| Horsham | Coolhurst Ground | Horsham, West Sussex | 11th | |
| Jersey | St Peter | Saint Peter, Jersey | Promoted from Regional 2SC | |
| London Welsh | Old Deer Park | 5,850 | Richmond, London | 3rd |
| Maidenhead | Braywick Park | 1,750 | Maidenhead, Berkshire | 8th |
| Old Alleynians | The Common | Dulwich, London | Promoted from Regional 2SE | |
| Tunbridge Wells | St Marks Recreation Ground | 3,000 | Royal Tunbridge Wells, Kent | 4th |
| Wimbledon | Beverley Meads | 1,000 | Wimbledon, London | Relegated from National 2 East |
2023–24 season
Departing were champions Wimbledon, promoted to National League 2 East, while two teams were relegated - RWB and Sutton & Epsom to Regional 2 South Central and Regional 2 South East respectively. Also departing on a level transfer to Regional 1 Midlands were Banbury and Oxford Harlequins.Three teams were promoted - Hammersmith & Fulham, Horsham and Marlborough from Regional 2 Thames, Regional 2 South East and Regional 2 South Central respectively. CS Rugby 1863 and Tunbridge Wells are both transferred from Regional 1 South East. The remaining seven teams played in this league last season.
Participating teams and locations
| Team | Ground | Capacity | City/Area | Previous season |
| Bournemouth | Chapel Gate | 1,500 | Bournemouth, Dorset | 7th |
| Bracknell | Lily Hill Park | 1,250 | Bracknell, Berkshire | 8th |
| Brighton | Waterhill Playing Fields | Brighton, East Sussex | 9th | |
| Camberley | Watchetts Recreation Ground | Camberley, Surrey | 3rd | |
| CS Rugby 1863 | King's House Sports Ground | Chiswick, London | Transferred from Regional 1SE | |
| Hammersmith & Fulham | Hurlingham Park | Fulham, London | Promoted from Regional 2 Thames | |
| Havant | Hooks Lane Ground | 1,500 | Havant, Hampshire | 2nd |
| Horsham | Coolhurst Ground | Horsham, West Sussex | Promoted from Regional 2SE | |
| London Welsh | Old Deer Park | 5,850 | Richmond, London | 6th |
| Maidenhead | Braywick Park | 1,750 | Maidenhead, Berkshire | 5th |
| Marlborough | The Common | Marlborough, Wiltshire | Promoted from Regional 2SC | |
| Tunbridge Wells | St Marks Recreation Ground | 3,000 | Royal Tunbridge Wells, Kent | Transferred from Regional 1SE |
2022–23
This was the first season following the RFU Adult Competition Review. The new league was made up of teams from both the London & SE and South West divisions.Participating teams and locations
| Team | Ground | Capacity | City/Area | Previous season |
| Banbury | Bodicote Park | 2,500 | Banbury, Oxfordshire | Transferred from SW1E |
| Bournemouth | Chapel Gate | Bournemouth, Dorset | Transferred from SW Premier | |
| Bracknell | Lily Hill Park | 1,250 | Bracknell, Berkshire | Transferred from SW1E |
| Brighton | Waterhill Playing Fields | Brighton, East Sussex | L&SE Premier | |
| Camberley | Watchetts Recreation Ground | Camberley, Surrey | Promoted from London 1 South | |
| Havant | Hooks Lane Ground | 1,500 | Havant, Hampshire | L&SE Premier |
| London Welsh | Old Deer Park | 5,850 | Richmond, London | Promoted from London 1 South |
| Maidenhead | Braywick Park | 1,750 | Maidenhead, Berkshire | L&SE Premier |
| Oxford Harlequins | Horspath Sports Ground, Oxford Road | 1,000 | Horspath, Oxfordshire | Transferred from SW1E |
| Royal Wootton Bassett | Ballards Ash Sports Ground | Royal Wootton Bassett, Wiltshire | Transferred from SW Premier | |
| Sutton & Epsom | Rugby Lane | Epsom, London | L&SE Premier | |
| Wimbledon | Beverley Meads | 1,000 | Wimbledon, London | L&SE Premier |
Regional 1 South Central honours
- Owing to the demise of Jersey Reds there was one less relegation place from the level five leagues. Of the six, 11th place teams, Horsham had the highest amount of points and escaped relegation.