Siobhan-Marie O'Connor is one of Great Britain's most successful female swimmers having won medals at every level of competition including silver at the 2016 Olympic Games in the 200m Individual Medley.
At her second Commonwealth Games, O'Connor successfully defended her 200m Individual Medley title and well as collecting to further bronze medals in the Women's Freestyle relays.
The Women's 200m Individual Medley saw a seventh-place finish for O'Connor at the 2017 FINA World Championships in Budapest. She also formed one part of the Mixed 4x100m Medley Relay team that finished fifth in a new European record time.
O’Connor won a total of three medals at the 2017 British Swimming Championships. She won silver medals in the 50m and 100m Freestyle and the 100m Breaststroke.
Siobhan nearly caused one of the biggest upsets in the pool of Rio 2016 as she delivered an outstanding swim in the 200m Individual Medley, almost beating Hungary's Katinka Hosszu to the title and set a new British record of 2:06.88 in the process. Two relay events saw O'Connor achieve a finals spot and seventh place finish in the Women's 4x100m Medley Relay, and a ninth place with the 4x200m freestyle quartet.
Ahead of the Rio Games, she won three medals at the European Championships in London, two relay golds and an individual silver.
2016 also started well with O'Connor securing three titles at the British Championships in Glasgow including her favoured and Olympic medal-winning event the 200m Individual Medley.
Four medals at the 2015 British Championships including two gold in 100m Freestyle and 200m Individual Medley saw O’Connor (England) qualify for her third World Championships in Kazan, Russia. Here she was part of a history-making relay quartet winning the inaugural mixed 4x100m Medley relay in a World record time. O’Connor also took bronze in the 200m Individual Medley out in Russia.
In 2014, she won her first British titles over 200m Freestyle and 200m Individual Medley, then grabbed six medals on her Commonwealth Games debut for England at Glasgow 2014, including 200m Individual Medley gold and silver over 200m Freestyle and 100m Butterfly.
O'Connor impressed at the 2013 World Championships in Barcelona to reach the 200m Individual Medley final before ultimately finishing eighth.
She booked her place as the youngest swimmer on the London 2012 Olympic team with 100m Breaststroke gold at the 2012 British ASA National Championships, then went on to finish 21st in the 100m Breaststroke and eighth in the 4 x 100m Medley Relay.
Encouraging performances at the European Junior Championship in 2010, Siobhan-Marie O’Connor burst on to the scene in 2011, winning 200m Individual Medley gold at the ASA National Championships to secure a place at the World Championships in Shanghai.
|200m Individual Medley||2016||02:06.88||BR|
|4x100m Mixed Medley Relay||2017||3:41.56||ER|
|100m Individual Medley||2015||57.59||BR|
|200m Individual Medley||2015||2:05.13||BR|
|200m Individual Medley||2016 - Rio||2:06.88||Silver|
|4x200m Freestyle Relay||2016 - Rio||7:54.17||9th|
|4x100m Medley Relay||2016 - Rio||3:56.96||7th|
|100m Breaststroke||2012 - London||1:08.32||21st|
|4x100m Medley Relay||2012 - London||3:59.46||8th|
|200m Individual Medley||2017 - Budapest||2:10.41||7th|
|Mixed 4x100m Medley Relay||2017 - Budapest||3:41.56||5th|
|200m Freestyle||2015 - Kazan||1:57.30||10th|
|200m Individual Medley||2015 - Kazan||2:08.77||Bronze|
|4x200m Freestyle Relay||2015 -Kazan||7:50.60||5th|
|4x100m Medley Relay (Mixed)||2015 - Kazan||3:41.71||Gold|
|200m Individual Medley||2013 - Barcelona||2:12.03||8th|
|200m Individual Medley||2011 - Shanghai||2:13.26||13th|
|200m Individual Medley||2018 - Gold Coast||2:09.80||Gold|
|4x100m Freestyle Relay||2018 - Gold Coast||3:38.40||Bronze|
|4x200m Freestyle Relay||2018 - Gold Coast||7:55.60||Bronze|
|4x100m Medley Relay||2018 - Gold Coast||4:01.67||4th|
|200m Freestyle||2014 - Glasgow||1:55.82||Silver|
|100m Butterfly||2014 - Glasgow||57.45||Silver|
|200m Individual Medley||2014 - Glasgow||2:08.21||Gold|
|4x100m Freestyle Medley||2014 - Glasgow||3:35.72||Silver|
|4x200m Freestyle Relay||2014 - Glasgow||7:52.45||Bronze|
|4x100m Medley Relay||2014 - Glasgow||3:57.03||Silver|
|200m Individual Medley||2016 - London||2:09.03||Silver|
|4x200m Freestyle Relay||2016 - London||7:53.97||4th|
|4x100m Medley Relay||2016 - London||3:58.57||Gold|
|4x100m Medley Relay (Mixed)||2016 - London||3:44.56||Gold|
|200m Freestyle||2018 - Edinburgh||2:02.63||6th|
|100m Breaststroke||2018 - Edinburgh||1:08.31||Silver|
|100m Butterfly||2018 - edinburgh||59.59||6th|
|200m Individual Medley||2018 - Edinburgh||2:12.26||Gold|
|50m Freestyle||2017 - Sheffield||25.28||Silver|
|100m Freestyle||2017 - Sheffield||54.37||Silver|
|100m Breaststroke||2017 - Sheffield||1:06.80||Silver|
|100m Butterfly||2017 - Sheffield||59.81||9th|
|100m Freestyle||2016 - Glasgow||54.18||Gold|
|100m Breaststroke||2016 - Galsgow||1:07.15||Gold|
|100m Butterfly||2016 - Glasgow||59.45||4th|
|200m Individual Medley||2016 - Glasgow||2:09.66||Gold|
|100m Freestyle||2015 - London||53.83||Gold|
|200m Freestyle||2015 - London||1:57.24||Silver|
|100m Butterfly||2015 - London||58.37||Bronze|
|200m Individual Medley||2015 - London||2:09.51||Gold|
|200m Freestyle||2014 - Glasgow||1:56.59||Gold|
|100m Butterfly||2014 - Glasgow||58.42||Silver|
|200m Individual Medley||2014 - Glasgow||2:09.71||Gold|
|100m Breaststroke||2013 - Sheffield||1:09.31||6th|
|50m Butterfly||2013 - Sheffield||26.83||Silver|
|200m Individual Medley||2013 - Sheffield||2:12.12||Silver|
|100m Freestlye||2012 - London||57.08||38th|
|200m Breaststroke||2012 - London||2:33.84||8th|
|100m Butterfly||2012 - London||1:00.57||9th|
|200m Individual Medley||2012 - London||2:15.49||6th|