| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | Cor Vriend - Achievements |  |  |  |  |  |
| 3 | Year | Competition | Venue | Position | Event | Notes |
| 4 | Representing the Netherlands | Representing the Netherlands | Representing the Netherlands | Representing the Netherlands | Representing the Netherlands | Representing the Netherlands |
| 5 | 1980 | Olympic Games | Moscow, Soviet Union | 41st | Marathon | 2:26:41 |
| 6 | 1981 | Enschede Marathon | Enschede, Netherlands | 1st | Marathon | 2:15:54 |
| 7 | 1981 | Fukuoka Marathon | Fukuoka, Japan | 13th | Marathon | 2:14:25 |
| 8 | 1982 | Amsterdam Marathon | Amsterdam, Netherlands | 1st | Marathon | 2:12:15 |
| 9 | 1982 | European Championships | Athens, Greece | — | Marathon | DNF |
| 10 | 1983 | Amsterdam Marathon | Amsterdam, Netherlands | 1st | Marathon | 2:13:41 |
| 11 | 1984 | Olympic Games | Los Angeles, United States | 39th | Marathon | 2:21:08 |
| 12 | 1984 | Beppu-Ōita Marathon | Beppu-Ōita, Japan | 1st | Marathon | 2:12:05 |

Question: How many times did Cor Vriend win the Amsterdam Marathon, and which year did he win his second? 
Answer: Vriend twice won the Amsterdam Marathon (once in 1983).