| Group 3 race | |
| Location | Morphettville Racecourse, South Australia |
|---|---|
| Inaugurated | 1955 |
| Race type | Thoroughbred - Flat racing |
| Race information | |
| Distance | 1,100 metres |
| Surface | Turf |
| Track | Left-handed |
| Qualification | Three years old and older |
| Weight | Weight for Age |
| Purse | A$150,000 (2024) |
The R. N. Irwin Stakes is a South Australian Jockey Club Group 3 Weight for Age Thoroughbred horse race for three year olds and older, run over a distance of 1100 metres at Morphettville Racecourse, Adelaide, Australia in the autumn.[1] Total prize money for the race is A$127,250.