Competitors for 2020 Champions Swim Series
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Michael Andrew |  USA |
SWI | 18 April 1999 |
| Alia Atkinson |  JAM |
SWI | 11 December 1988 |
| Dmitry Balandin |  KAZ |
SWI | 4 April 1995 |
| Martina Carraro |  ITA |
SWI | 21 June 1993 |
| Svetlana Chimrova |  NEU RUS |
SWI | 15 April 1996 |
| Apostolos Christou |  GRE |
SWI | 1 November 1996 |
| Michelle Coleman |  SWE |
SWI | 31 October 1993 |
| Jérémy Desplanches |  SUI |
SWI | 7 August 1994 |
| Elena Di Liddo | ITA |
SWI | 8 September 1993 |
| Fu Yuanhui |  CHN |
SWI | 7 January 1996 |
| Kristian Gkolomeev | GRE |
SWI | 4 July 1993 |
| Robert Glință |  ROU |
SWI | 18 April 1997 |
| João Gomes Júnior |  BRA |
SWI | 21 January 1986 |
| Matt Grevers | USA |
SWI | 26 March 1985 |
| Molly Hannis | USA |
SWI | 13 March 1992 |
| Siobhán Haughey |  HKG |
SWI | 31 October 1997 |
| Femke Heemskerk |  NED |
SWI | 21 September 1987 |
| Katinka Hosszú |  HUN |
SWI | 3 May 1989 |
| Andriy Hovorov |  UKR |
SWI | 10 April 1992 |
| Ryosuke Irie |  JPN |
SWI | 24 January 1990 |
| Ji Xinjie | CHN |
SWI | 27 October 1997 |
| Arno Kamminga | NED |
SWI | 22 October 1995 |
| Boglárka Kapás | HUN |
SWI | 22 April 1993 |
| Tamás Kenderesi | HUN |
SWI | 13 December 1996 |
| Ajna Késely | HUN |
SWI | 10 September 2001 |
| Dominik Kozma | HUN |
SWI | 10 April 1991 |
| Ranomi Kromowidjojo | NED |
SWI | 20 August 1990 |
| Felipe Lima | BRA |
MOP/SWI | 5 April 1985 |
| Liu Xiang | CHN |
SWI | 1 September 1996 |
| Liu Yaxin | CHN |
OWS/SWI | 16 June 1999 |
| Andrey Minakov | NEU RUS |
SWI | 17 March 2002 |
| Vladimir Morozov | NEU RUS |
SWI | 16 June 1992 |
| Rika Omoto | JPN |
SWI | 8 May 1997 |
| Jeanette Ottesen Gray |  DEN |
SWI | 30 December 1987 |
| Jacob Pebley | USA |
SWI | 17 September 1993 |
| Sydney Pickrem |  CAN |
SWI | 21 May 1997 |
| Josh Prenot | USA |
SWI | 28 July 1993 |
| Danas Rapšys |  LTU |
SWI | 21 May 1995 |
| Masato Sakai | JPN |
SWI | 6 June 1995 |
| Nicholas Santos | BRA |
SWI | 14 February 1980 |
| Daiya Seto | JPN |
SWI | 24 May 1994 |
| Ilia Shymanovich |  BLR NEU |
SWI | 2 August 1994 |
| Sun Yang | CHN |
SWI | 1 December 1991 |
| Liliána Szilágyi | HUN |
SWI | 19 November 1996 |
| Matthew Temple |  AUS |
SWI | 20 June 1999 |
| Pieter Timmers |  BEL |
SWI | 21 January 1988 |
| Kira Toussaint | NED |
SWI | 22 May 1994 |
| Wang Jianjiahe | CHN |
SWI | 17 July 2002 |
| Wang Shun | CHN |
SWI | 11 February 1994 |
| Ippei Watanabe | JPN |
SWI | 18 March 1997 |
| Xu Jiayu | CHN |
SWI | 19 August 1995 |
| Yan Zibei | CHN |
SWI | 12 October 1995 |
| Yang Junxuan | CHN |
SWI | 26 January 2002 |
| Ye Shiwen | CHN |
SWI | 1 March 1996 |
| Anna Yegorova | NEU RUS |
SWI | 31 May 1998 |
| Yu Jingyao | CHN |
SWI | 13 February 1999 |
| Anastasiya Zuyeva-Fesikova | RUS |
SWI | 8 May 1990 |