Otylia Jedrzejczak, a renowned Polish swimmer, has made significant contributions to the sport. Born in Warsaw, Poland, she began swimming at the age of six. Her parents introduced her to the sport, and she started serious lessons in secondary school. She trains with the AZS AWF club in Warsaw under coach Bartosz Kizierowski since 2011.

| Season | Event | Rank |
|---|---|---|
| 2012 | Women 200m Butterfly | 16 |
| 2012 | 25 | |
| 2008 | Women 200m Butterfly | 4 |
| 2008 | Women 400m Freestyle | 9 |
| 2008 | 17 | |
| 2004 | Women 200m Butterfly | G Gold |
| 2004 | S Silver | |
| 2004 | Women 400m Freestyle | S Silver |
| 2000 | Women 200m Butterfly | 5 |
| 2000 | Semifinal | |
| 2000 | Heats |
Jedrzejczak trains twice daily from Monday to Friday. She is right-handed and has been guided by coach Bartosz Kizierowski since 2011. Known by nicknames "Oti" or "Motylia," she has been a prominent figure in Polish swimming.
Jedrzejczak's career has seen numerous accolades. She was named one of Time magazine's European Heroes of 2004 and came second in Poland's Sportsperson of the Year awards in 2002 and 2003. However, her journey has not been without difficulties.
In October 2005, Jedrzejczak was involved in a car accident that resulted in the death of her brother Szymon. She suffered head and spinal injuries and spent six weeks in hospital. Despite this setback, she returned to win a gold medal at the 2006 European Championships.
Jedrzejczak auctioned her 2004 Olympic Games gold medal for $80,000 to raise money for children with leukaemia. Inspired by Eric Emmanuel Schmitt's novel "Oscar and the Lady in Pink," she vowed to help children suffering from the disease. The Polish State Mint later presented her with a solid gold replica.
Her victory in the 200m butterfly at the 2004 Athens Olympics marked the first gold medal for a Polish swimmer at the Games. She returned to Poland as a national hero, with thousands of fans celebrating her achievement.
At the 2001 World Championships in Fukuoka, Japan, Jedrzejczak was disqualified during the heats of the 200m event after swallowing water and grabbing a lane rope to recover. Despite continuing the race, she left the pool in tears.
In 2009, Jedrzejczak participated in the Polish edition of Dancing with the Stars, dancing with Slawomir Turski. She aimed to distract herself and improve muscle coordination through dancing lessons. She was eliminated in the eighth round.
Looking ahead, Jedrzejczak plans to work in media or public relations after retiring from her swimming career. Her journey reflects resilience and dedication, making her an inspiring figure in sports.
Otylia Jedrzejczak, a renowned Polish swimmer, has made significant contributions to the sport. Born in Warsaw, Poland, she began swimming at the age of six. Her parents introduced her to the sport, and she started serious lessons in secondary school. She trains with the AZS AWF club in Warsaw under coach Bartosz Kizierowski since 2011.