1000 km Zeltweg
| European Le Mans Series | |
|---|---|
| Venue | Red Bull Ring |
| First race | 1933 |
| First ELMS race | 2013 |
| Last race | 2021 |
| Duration | 4 Hours |
| Previous names | 500 km Zeltweg 1000 km Zeltweg |
The 4 Hours of Red Bull Ring (originally known as the 500 km Zeltweg) was an endurance sports car event held near Spielberg, Austria. Originally based at the Zeltweg Airfield, the race moved to the Österreichring and was lengthened to a 1000 km distance and there it continued to be a regular event in the World Sportscar Championship until 1976.