[3] During the 2011 Polish speedway season, Świderski broke his leg while riding for Wrocław.
[4] Świderski rode for the Peterborough Panthers in 2006 and 2007 before being loaned out to Ipswich from 2008 to 2009.
[5] After being dropped by Ipswich he went on to ride for Lakeside Hammers in the British Elite League.
[6] In 2015, he signed for Leicester Lions to replace the retired Lewis Bridger, which turned out to be his final season in British speedway.
This biographical article relating to Polish speedway is a stub.