# Rowing at the 1968 Summer Olympics – Men's single sculls

The men's single sculls competition at the 1968 Summer Olympics took place at Virgilio Uribe Rowing and Canoeing Course, Mexico. The event was held from 15 to 19 October. There were 17 competitors from 17 nations, with each nation limited to a single boat in the event. The event was won by Jan Wienese of the Netherlands, with Jochen Meißner of West Germany taking silver and Alberto Demiddi of Argentina earning bronze. It was the first medal in men's single sculls for each of the three nations. The Soviet Union's four-Games winning streak in the event ended; three-time champion Vyacheslav Ivanov was left off the team in favor of Viktor Melnikov; Melnikov finished fourth in his semifinal and did not reach the main final.

## Background

This was the 15th appearance of the event. Rowing had been on the programme in 1896 but was cancelled due to bad weather. The single sculls has been held every time that rowing has been contested, beginning in 1900.
Three of the 13 single scullers from the 1964 Games returned: two-time silver medalist Achim Hill of the United Team of Germany (now competing for East Germany), fourth-place finisher Alberto Demiddi of Argentina, and twelfth-place finisher Vaclav Kozak of Czechoslovakia. The field was unusually open with many top-flight scullers absent. The Soviet Union sent Viktor Melnikov rather than three-time reigning gold medalist Vyacheslav Ivanov. The United States had John Van Blom rather than reigning World Champion Donald Spero. Great Britain was represented by Kenny Dwan instead of reigning Diamond Challenge Sculls winner Hugh Wardell-Yerburgh. The most accomplished competitors present were Hill and Demiddi (who had also won the Pan American Games). Roger Jackson of Canada and Kozak were Olympic champions, but in other events (1964 coxless pairs for Jackson, 1960 double sculls for Kozak).
Cuba and Romania each made their debut in the event; East and West Germany competed separately for the first time. Great Britain made its 13th appearance, most among nations, after missing only its second edition of the event in 1964.

## Competition format

This rowing event was a single scull event, meaning that each boat was propelled by a single rower. The "scull" portion means that the rower used two oars, one on each side of the boat. The course used the 2000 metres distance that became the Olympic standard in 1912.
The tournament, with more rowers than the previous few Games, expanded back to four rounds: three main rounds and a repechage. The competition continued to use the six-boat heat standardised in 1960 as well as the "B" final for ranking 7th through 12th place introduced in 1964.
* Quarterfinals: Three heats of 5 or 6 boats each. The top two boats in each heat (6 total) advanced directly to the semifinals. The remaining boats (11 total) went to the repechage.
* Repechage: Two heats of 5 or 6 boats each (though a nonstarter meant one heat had only 4). The top three boats of each heat (6 total) rejoined the quarterfinal winners in the semifinals. The other boats (5 total, including the nonstarter) were eliminated.
* Semifinals: Two heats of 6 boats each. The top three boats in each heat (6 total) advanced to Final A, the remaining boats (6 total) went to Final B.
* Final: Two finals. Final A consisted of the top 6 boats. Final B was intended to place boats 7 through 12, though only 5 boats started.

## Schedule

All times are Central Standard Time (UTC-6)
| Date | Time | Round |
| Sunday, 13 October 1968 | 10:30 | Quarterfinals |
| Tuesday, 15 October 1968 | 9:45 | Repechage |
| Thursday, 17 October 1968 | 11:30 | Semifinals |
| Friday, 18 October 1968 | 18:10 | Final B |
| Saturday, 19 October 1968 | 19:08 | Final A |

## Results
### Quarterfinals

The first two rowers in each heat advanced directly to the semifinals. The others competed again in the repechage for the remaining six spots in the semifinals.

#### Quarterfinal 1

| Rank | Rower | Nation | Time | Notes |
| 1 | Jochen Meißner | West Germany | 7:45.80 | Q |
| 2 | Alberto Demiddi | Argentina | 7:49.78 | Q |
| 3 | Manfred Krausbar | Austria | 7:55.70 | R |
| 4 | Vaclav Kozak | Czechoslovakia | 7:59.93 | R |
| 5 | Zdzislaw Bromek | Poland | 8:06.61 | R |
| 6 | Tsugio Ito | Japan | 8:10.00 | R |

#### Quarterfinal 2

| Rank | Rower | Nation | Time | Notes |
| 1 | Niels Henry Secher | Denmark | 7:51.45 | Q |
| 2 | Roger Jackson | Canada | 7:55.88 | Q |
| 3 | Viktor Melnikov | Soviet Union | 8:03.29 | R |
| 4 | Eugen Petrache | Romania | 8:05.33 | R |
| 5 | Hans Ruckstuhl | Switzerland | 8:08.90 | R |
| 6 | Heriberto Martínez | Cuba | 8:14.20 | R |

#### Quarterfinal 3

| Rank | Rower | Nation | Time | Notes |
| 1 | Jan Wienese | Netherlands | 7:44.92 | Q |
| 2 | Achim Hill | East Germany | 7:47.23 | Q |
| 3 | John Van Blom | United States | 7:54.79 | R |
| 4 | Kenny Dwan | Great Britain | 8:03.95 | R |
| 5 | Claude Dehombreux | Belgium | 8:19.41 | R |

### Repechage

The three fastest rowers from each repechage heat advanced to the semifinals.

#### Repechage heat 1

| Rank | Rower | Nation | Time | Notes |
| 1 | John van Blom | United States | 7:43.00 | Q |
| 2 | Manfred Krausbar | Austria | 7:46.65 | Q |
| 3 | Zdzislaw Bromek | Poland | 7:48.68 | Q |
| 4 | Claude Dehombreux | Belgium | 7:54.98 | |
| 5 | Eugen Petrache | Romania | 8:02.94 | |
| 6 | Heriberto Martinez | Cuba | 8:20.92 | |

#### Repechage heat 2

| Rank | Rower | Nation | Time | Notes |
| 1 | Kenny Dwan | Great Britain | 7:41.98 | Q |
| 2 | Victor Melnikov | Soviet Union | 7:46.86 | Q |
| 3 | Vaclav Kozak | Czechoslovakia | 7:49.93 | Q |
| 4 | Tsugio Ito | Japan | 7:58.08 | |
| — | Hans Ruckstuhl | Switzerland | DNS | |

### Semifinals

The first three rowers from each semifinal advanced to Final A, while the rest advanced to Final B.

#### Semifinal 1

| Rank | Rower | Nation | Time | Notes |
| 1 | Achim Hill | East Germany | 7:48.56 | QA |
| 2 | Jochen Meißner | West Germany | 7:51.26 | QA |
| 3 | Kenny Dwan | Great Britain | 7:55.90 | QA |
| 4 | Vaclav Kozak | Czechoslovakia | 8:01.81 | QB |
| 5 | Niels Henry Secher | Denmark | 8:17.64 | QB |
| 6 | Manfred Krausbar | Austria | 8:19.41 | QB |

#### Semifinal 2

| Rank | Rower | Nation | Time | Notes |
| 1 | Jan Wienese | Netherlands | 7:45.48 | QA |
| 2 | Alberto Demiddi | Argentina | 7:47.98 | QA |
| 3 | John van Blom | United States | 7:49.85 | QA |
| 4 | Victor Melnikov | Soviet Union | 7:50.30 | QB |
| 5 | Roger Jackson | Canada | 8:10.64 | QB |
| 6 | Zdzislaw Bromek | Poland | 8:13.92 | QB |

### Finals

Final A was for the top six rowers, who still had a chance to get the medals. Final B was used to determine the 7th until 12th place of this rowing event.

#### Final B

| Rank | Rower | Nation | Time |
| 7 | Zdzislaw Bromek | Poland | 7:38.88 |
| 8 | Niels Henry Secher | Denmark | 7:43.47 |
| 9 | Vaclav Kozak | Czechoslovakia | 7:45.81 |
| 10 | Manfred Krausbar | Austria | 7:46.19 |
| 11 | Roger Jackson | Canada | 7:48.05 |
| — | Victor Melnikov | Soviet Union | DNS |

#### Final A

| Rank | Rower | Nation | Time |
| | Jan Wienese | Netherlands | 7:45.48 |
| | Jochen Meißner | West Germany | 7:47.98 |
| | Alberto Demiddi | Argentina | 7:49.85 |
| 4 | John van Blom | United States | 7:50.30 |
| 5 | Achim Hill | East Germany | 8:10.64 |
| 6 | Kenny Dwan | Great Britain | 8:13.92 |

## Results summary

| Rank | Rower | Nation | Quarterfinals | Repechage | Semifinals | Finals |
| | Jan Wienese | Netherlands | 7:44.92 | Bye | 7:45.48 | 7:45.48 Final A |
| | Jochen Meißner | West Germany | 7:45.80 | Bye | 7:51.26 | 7:47.98 Final A |
| | Alberto Demiddi | Argentina | 7:49.78 | Bye | 7:47.98 | 7:49.85 Final A |
| 4 | John van Blom | United States | 7:54.79 | 7:43.00 | 7:49.85 | 7:50.30 Final A |
| 5 | Achim Hill | East Germany | 7:47.23 | Bye | 7:48.56 | 8:10.64 Final A |
| 6 | Kenny Dwan | Great Britain | 8:03.95 | 7:41.98 | 7:55.90 | 8:13.92 Final A |
| 7 | Zdzislaw Bromek | Poland | 8:06.61 | 7:48.68 | 8:13.92 | 7:38.88 Final B |
| 8 | Niels Henry Secher | Denmark | 7:51.45 | Bye | 8:17.64 | 7:43.47 Final B |
| 9 | Vaclav Kozak | Czechoslovakia | 7:59.93 | 7:49.93 | 8:01.81 | 7:45.81 Final B |
| 10 | Manfred Krausbar | Austria | 7:55.70 | 7:46.65 | 8:19.41 | 7:46.19 Final B |
| 11 | Roger Jackson | Canada | 7:55.88 | Bye | 8:10.64 | 7:48.05 Final B |
| 12 | Victor Melnikov | Soviet Union | 8:03.29 | 7:46.86 | 7:50.30 | DNS Final B |
| 13 | Claude Dehombreux | Belgium | 8:19.41 | 7:54.98 | Did not advance | Did not advance |
| 14 | Tsugio Ito | Japan | 8:10.00 | 7:58.08 | Did not advance | Did not advance |
| 15 | Eugen Petrache | Romania | 8:05.33 | 8:02.94 | Did not advance | Did not advance |
| 16 | Heriberto Martinez | Cuba | 8:14.20 | 8:20.92 | Did not advance | Did not advance |
| 17 | Hans Ruckstuhl | Switzerland | 8:08.90 | DNS | Did not advance | Did not advance |