The race has been staged since 1965 and is the oldest half marathon in the UK.
The race was staged on April 11 this year as the third event in the series.
This is the second year that these races, which for years were held individually, are being staged on the same program.
The race is currently staged on the second day of the three-day Grand National meeting.
The races were also staged there in 1988, 1991 and 1994.
The race was initially staged at the Champ de Mars.
Since 2000, a wide range of amateur events, including youth, adult and historic races have been staged at the circuit.
The race is currently staged at the same meeting as the Oaks d'Italia.
Despite having Indoor in the name of the race, the race was staged outside.
The race was staged at Pontefract from 1942 to 1945.