The Prior Cup was donated by Priors (the sand and ballast shipping company in the River Colne) and is awarded to the 3rd barge home.
| 2020 | Lady of the Lea |
| 2019 | Niagara |
| 2018 | Repertor |
| 2017 | Marjorie |
| 2016 | Repertor |
| 2015 | Edith May |
| 2014 | Niagara |
| 2013 | Edith May |
| 2012 | Edith May |
| 2011 | Repertor |
| 2010 | Reminder |
| 2009 | Reminder |
| 2008 | Repertor |
| 2007 | Decima |
| 2006 | Repertor |
| 2005 | Repertor |
| 2004 | Wyvenhoe |
| 2003 | Repertor |
| 2002 | Marjorie |
| 2001 | Repertor |
| 2000 | Repertor |
| 1999 | Xylonite |
| 1998 | Repertor |
| 1997 | Gladys |
| 1996 | Marjorie |
| 1995 | Marjorie |
| 1994 | Xylonite |
| 1993 | Xylonite |
| 1992 | May |
| 1991 | Mirosa |
| 1990 | Repertor |
| 1989 | Mirosa |
| 1988 | Reminder |
| 1987 | Dawn |
| 1986 | May |
| 1985 | Reminder |
| 1984 | Repertor |
| 1983 | cancelled |
| 1982 | — |
| 1981 | Gladys |
| 1980 | Edith May |
| 1979 | Edith May |
| 1978 | Edith May |
| 1977 | Ironsides |
| 1976 | Redoubtable |
| 1975 | Kitty |
| 1974 | Kitty |
| 1973 | Dawn |
| 1972 | Marjorie |
©Sandy Miller 
©James Hamilton 
©James Hamilton