Please note that in 1988 the course was changed to start at Castletown and finish at the Custom House in Dublin City. This was done to avail of Dublin's Millennium Celebrations. As a result of the changed course times are significantly shorter. When looking at best times it is perhaps best to ignore 1988. However I have included 1988 for the sake of completeness.
The course reverted to starting at Straffan thereafter.