The Essex Knockout competition goes back many years. Originally, this was a standardplay competition playing thoughout the regular League season. However, this eventually fell in popularity until it was in a moribund state.
The competition was revived in 2001 as a summer event in rapidplay format, each match being two G30 rounds, now G20+10. A Plate competition was added in 2003.
This page records the winners of the Summer Rapidplay Knockout and Plate.
Knockout winners
| Year | Winners | Score | Opponents | Year | Winners | Score | Opponents | |
| 2001 | Ilford | 11-1 | Chelmsford | 2013 | Wanstead A | 9½-2½ | Ilford | |
| 2002 | Ilford | 7½-4½ | Writtle | 2014 | Writtle | 6½-5½ | Wanstead A | |
| 2003 | Ilford | 6½-5½ | Barking | 2015 | Barking A* | *5-5 | Writtle | |
| 2004 | Barking | 6½-5½ | Wanstead A | 2016 | Writtle | 6-4 | Wanstead A | |
| 2005 | Writtle* | *6-6 | Barking | 2017 | Writtle | 5½-4½ | Wanstead A | |
| 2006 | Writtle | 9-3 | Barking | 2018 | Barking A | 5½-4½ | Writtle | |
| 2007 | Barking | 6½-5½ | Wanstead | 2019 | Wanstead B | 7½-2½ | Wanstead A | |
| 2008 | Writtle | 7-5 | Barking | 2020 | No competition 1 | – | – | |
| 2009 | Barking | 8½-3½ | Writtle | 2021 | No competition 1 | – | – | |
| 2010 | Barking | 9½-2½ | Ilford | 2022 | Wanstead A | 6-4 | Barking A | |
| 2011 | Barking* | *6-6 | Writtle | 2023 | Wanstead A | 7½-2½ | Barking A | |
| 2012 | Barking | 8-4 | Wanstead A | |||||
| *=Won on tie-break Note: from 2015 number of boards was reduced to 5. 1 Covid-19 lockdowns | ||||||||
Plate winners
| Year | Winners | Score | Opponents | Year | Winners | Score | Opponents | |
| 2003 | Chelmsford | 7-5 | Wanstead B | 2014 | Upminster A | 9½-2½ | Upminster B | |
| 2004 | Ilford | 9½-2½ | Wanstead B | 2015 | Upminster A | 6-4 | Wanstead C | |
| 2005 | Wanstead A | 9½-2½ | Upminster | 2016 | Barking B* | *5-5 | Wanstead B | |
| 2006 | Ilford | 6½-5½ | Chlemsford | 2017 | Upminster A | 7½-2½ | Upminster B | |
| 2007 | Upminster | 7-5 | Thurrock | 2018 | Wanstead A | 7½-2½ | Ilford | |
| 2008 | Roding & Loughton | 6½-5½ | Brentwood | 2019 | Upminster A | 8½-1½ | Barking B | |
| 2009 | Upminster | 6½-5½ | Thurrock | 2020 | No competition 1 | – | – | |
| 2010 | Upminster | 7-5 | Basildon | 2021 | No competition 1 | – | – | |
| 2011 | Thurrock | 5½-2½ | Ilford | 2022 | Ilford | 8-2 | Thurrock | |
| 2012 | Ilford | 7½-4½ | Southend | 2023 | Wanstead B | 7½-2½ | Loughton | |
| 2013 | Upminster | 8-4 | Wanstead B | |||||
| *=Won on tie-break Note: from 2015 number of boards was reduced to 5. 1 Covid-19 lockdowns | ||||||||