Friday's competition brought together as many as 70 participants. In addition to male and female competitors from Bolesławiec, representatives of Lubań, Rudna, Polkowice and Zgorzelec also took part. The swimmers competed in freestyle over a distance of 1,000 metres. In the individual age categories, the women's winners were: Wiktoria Antczak, Martyna Błaszczyk, Sylwia Cieślak and Karolina Puchalska. The men's winners were: Jakub Wajcfeld, Dawid Dyrda, Jacek Ołpiński, Michał Daszyński, Marcin Małowiecki, Robert Markowski, Rafał Piotrowski and Andrzej Daszyński.
Friday's swimming competition was the final event in the 2005 Open Bolesławiec Championships. Therefore, after certificates and prizes were presented to the winners of the final competition, the participants in the entire OMB 2005 series were also recognized and awarded.
Winners of the 2005 Open Bolesławiec Swimming Championships in the women's category:
- up to 9 years – Monika Wójcik
- 10–11 years – Żaklina Musiał
- 12–15 years – Sylwia Cieślak
- 16–21 years – Paulina Piotrowska
- 22–29 years – Żaklina Bukowiec
Winners of the 2005 Open Bolesławiec Swimming Championships in the men's category:
- up to 9 years – Jakub Wajcfeld
- 10–11 years – Kordian Różnicki
- 12–15 years – Jacek Ołpiński
- 16–21 years – Michał Iwan
- 22–29 years – Marcin Małowiecki
- 30–39 years – Jarosław Sudół
- 40–49 years – Rafał Piotrowski
- 50 years and over – Andrzej Daszyński
The Open Bolesławiec Swimming Championships were organized by the Municipal Sports and Recreation Centre.