100m butterfly, the event is the time it takes to compete in the butterfly swim the 100m.
Video is the final state of men's 100m butterfly at the 2008 Beijing Olympics.
Regulations commentary seen in 5 minutes
The competition area
- 501 m pool swim round trip.
- 1Is performed in eight human race.
Start
- Take the starting blocks at the whistle.
- Gun after the starting signal will be; "(provided by Take Your Marks) Take Your Marks".
- Until the gun had to be stationary from "Take Your Marks", will be disqualified if moved.
Stroke
- The players, both arms moving back and forth at the same time in the prone posture, both legs must swim by moving up and down at the same time.
- To go to somewhere other than their own lane, to touch the rope course, you can walk or kicking the bottom of the pool is not allowed.
- And after the turn after the start, since the 15m from the wall, you must be out on the water surface is part of the body.
- Turn (wrap), you will need to touch the wall with both hands at the same time.
Finish
- 100will finish at the same time when you touch both hands to the wall of the pool swimming in the m.
The road to gold medal
- Proceed through the semi-finals and finals → → qualifying.
- In qualifying, the top 16 will advance to the semifinals name.
- In the semifinals, the name of the top eight will advance to the finals.
World Record / Japanese record
100m butterfly
| Record | Name | Date | |
|---|---|---|---|
World | 49"82 | Michael Phelps ( | 2009/08/01 |
World | 56"06 | Sarah Shosutoromu ( | 2009/07/27 |
| Japan | 51"00 | Kawamoto Kohei | 2009/09/11 |
| Japan | 57"77 | Kato ゆ か | 2012/04/03 |