The women's K-2 500 metres event was a pairs kayaking event conducted as part of the Canoeing at the 1968 Summer Olympics program. In the official report, heat times were shown in tenths of a second (0.1) while semifinal and final times were shown in hundredths of a second (0.01).
Rosznyói is shown by her married name Sági in the official report.
The 11 crews first raced in two heats on 20 October. The top three finishers from each of the heats advanced directly to the final; the remaining five teams were relegated to the semifinal.
| Heat 1 | |||||
| width=30 | 1. | width=60 | 1:59.5 | QF | |
| 2. | 1:59.6 | QF | |||
| 3. | 1:59.9 | QF | |||
| 4. | 2:08.9 | QS | |||
| 5. | 2:12.1 | QS | |||
| 6. | 2:15.3 | QS | |||
| Heat 2 | |||||
| 1. | 2:01.0 | QF | |||
| 2. | 2:02.8 | QF | |||
| 3. | 2:03.4 | QF | |||
| 4. | 2:06.5 | QS | |||
| 5. | 2:06.8 | QS |
The top three finishers in the semifinal (raced on October 24) advanced to the final.
| Semifinal | |||||
| width=30 | 1. | width=60 | 2:03.48 | QF | |
| 2. | 2:04.54 | QF | |||
| 3. | 2:06.31 | QF | |||
| 4. | 2:07.88 | ||||
| 5. | 2:10.11 |
The final was held on October 25.
| width=30 bgcolor=gold | width=60 | 1:56.44 | ||
| bgcolor=silver | 1:58.60 | |||
| 1:58.61 | ||||
| 4. | 1:59.17 | |||
| 5. | 2:00.18 | |||
| 6. | 2:02.02 | |||
| 7. | 2:02.97 | |||
| 8. | 2:03.70 | |||
| 9. | 2:04.20 |