In December 2015, he won the super heavyweight division at the Rio 2016 test event.[3]
In 2016, he was ultimately overlooked for Olympic qualification in favour of fellow super heavyweight boxerJoe Joyce (who went onto claim the silver medal in Rio 2016); however, he did make theBritish Lionhearts squad for their maidenWSB final against theCuba Domadores and won his match againstLenier Pero, thereby denying the Domadores what would have otherwise been a 10–0 whitewash.[4]
In 2017, he contested theEuropean Championships and finished with a silver medal despite tearing his hamstring en route to the final.[5] The subsequent operation required to mend it forced him to miss that year's World Championships.[6]
In 2018, he beat Satish Kumar in the Commonwealth Games super heavyweight final, taking a unanimous judges' decision to claim gold.[7]
In 2019, Clarke was selected to compete at theEuropean Games inMinsk,Belarus,[8] where he suffered a surprise defeat to Nelvie Tiafack in the round of 16.[9] On hisWorld Championships debut, he was originally deemed to have beaten Maksim Babanin by split decision (3:2) in the quarterfinals; this result was later overturned by a bout review jury on appeal.[10]
2016 – World Series of Boxing Season 2016 Semi-finals – +91KG Won against Kamshybek Kunkabayev (KAZ) 3:0
2016 – World Series of Boxing Season 2016 Quarter-finals – +91KG Won againstVladyslav Sirenko (UKR) TKO 5th round
2016 – World Series of Boxing Season 2016 11th Round – +91KG Won against Nigel Paul (TRI) TKO 5th round
2016 – Strandja Memorial Tournament (Sofia, BUL) 3rd place – +91KG Lost to Petar Belberov (BUL) 2:1 in the semi-final; Won against Kem Ljungquist (DEN) WO in the quarter-final; Won against Ali Eren Demirezen (TUR) 3:0 in the first preliminary round
2016 – World Series of Boxing Season 2016 4th Round – +91KG Won against Ahmed Bourous (MAR) 3:0
2015 – Olympic Test Event (Rio de Janeiro, BRA) 1st place – +91KG Won against Erik Pfeifer (GER) 2:1 in the final; Won against Satish Kumar (IND) 3:0 in the semi-final
2015 – President’s Cup (Erzurum, TUR) 1st place – +91KG Won against Ibrahim Demirezen (TUR) WO in the final; Won against Ihor Shevadzutskiy (UKR) 3:0 in the semi-final; Won against Nkoya Ngoma (DRC) WO in the quarter-final; Won against Muhammer Taha Aslan (TUR) TKO 1st round in the first preliminary round
2015 – British Championships (Rotherham, ENG) 1st place – +91KG Won against Joshua Quailey (ENG) TKO 3rd round in the final
2015 – English National Championships 1st place – +91KG Won against Natty Ngengwa (ENG) 3:0 in the final; Won against Joshua Quailey (ENG) 3:0 in the semi-final
2015 – Strandja Memorial Tournament (Sofia, BUL) 7th place – +91KG Lost to Petar Belberov (BUL) 2:1 in the quarter-final
2014 – Golden Belt Tournament (Chiajna, ROM) 1st place – +91KG Won against Yaroslav Doronichev (RUS) 3:0 in the final; Won against Daniel Emanuel Costea (ROM) 3:0 in the semi-final
2014 – Tammer Tournament (Tampere, FIN) 1st place – +91KG Won against Lenroy “Cam Awesome” Thompson (USA) 3:0 in the final; Won against Ruben Nazaryan (BEL) 3:0 in the semi-final
2014 – European Union Championships (Sofia, BUL) 1st place – +91KG Won against Guido Vianello (ITA) 3:0 in the final; Won against Tony Yoka (FRA) 3:0 in the semi-final; Won against Aleksei Zavatin (MDA) 3:0 in the quarter-final
2014 – English National Championships 2nd place – +91KG Lost to Joseph Joyce (ENG) TKO 3rd round in the final; Won against Fayz Aboadi Abbas (ENG) 3:0 in the semi-final; Won against Alan Johnson (ENG) TKO 2nd round in the quarter-final
2014 – Strandja Memorial Tournament (Sofia, BUL) 1st place – +91KG Won against Bahodir Jalolov (UZB) 3:0 in the final; Won against Gu Guangming (CHN) 3:0 in the semi-final; Won against Sergey Kuzmin (RUS) 3:0 in the quarter-final
2014 – RUS-GBR Dual Match (Astana, KAZ) – +91KG Won against Dmitriy Mukhin (RUS) 3:0
2014 – KAZ-GBR Dual Match (Astana, KAZ) – +91KG Lost to Zhan Kosobutskiy (KAZ) 2:1
2013 – Feliks Stamm Memorial Tournament (Warsaw, POL) 2nd place – +91KG Lost to Sergey Verveyko (POL) 18:12 in the final; Won against Yusuf Acik (TUR) 14:8 in the semi-final; Won against Alexei Zavatin (MDA) 10:9 in the quarter-final
2013 – Gee Bee Tournament (Helsinki, FIN) 3rd place – +91KG Lost to Maksim Babanin (RUS) 19:11 in the semi-final
2013 – Bocskai Memorial Tournament (Debrecen, HUN) 2nd place – +91KG Lost to Magomed Omarov (RUS) DQ 3rd round in the final; Won against Stefan Sliz (SVK) 19:6 in the semi-final; Won against Ruslan Kakushkin (BLR) 16:9 in the quarter-final
2012 – EUBC European Olympic Hopes 19–22 Championships (Kaliningrad, RUS) 3rd place – +91KG Lost to Gasan Gimbatov (RUS) 19:13 in the semi-final; Won against Nikita Maculevics (LAT) 16:10 in the quarter-final
2012 – British National Championships (London, ENG) 2nd place – +91KG Lost to Joseph Joyce (ENG) 37:36 in the final
2012 – English National Championships 2nd place – +91KG Lost to Joseph Joyce (ENG) 5:0 in the final; Won against Courtney Clift (ENG) DQ 3rd round in the semi-final
2012 – SWE-GBR Dual Match – +91KG Lost toOtto Wallin (SWE) 32:11
2011 – Tammer Tournament (Tampere, FIN) 3rd place – +91KG Lost to Kaspar Vaha (EST) 22:13 in the semi-final
2011 – British National Championships (London, ENG) 2nd place – +91KG Loss to Joseph Joyce (ENG) RSCI 2nd round in the final
2011 – English National Championships 3rd place – +91KG Lost to Fayz Aboadi Abbas (ENG) RSC 3rd round in the semi-final
2010 – Tammer Tournament (Tampere, FIN) 7th place – +91KG Lost to Lenroy Thompson (USA) 2+:2 in the quarter-final
2010 – Commonwealth Championships (New Delhi, IND) 3rd place – +91KG Lost to Joseph Parker (NZL) 7:3 in the semi-final
2009 – EUBC European Confederation Youth Boxing Championships (Szczecin, POL) 7th place – +91KG Lost to Tony Yoka (FRA) 3:2 in the quarter-final; Won against Gheorghe Dinu (ROM) 2:1 in the first preliminary round
2009 – ENG-GER Youth Dual Match2 (Dublin, IRL) – +91KG Lost to Ali Kiyidin (GER) 13:7
2009 – ENG-GER Youth Dual Match (Dublin, IRL) – +91KG Won against Ali Kiyidin (GER) 14:4
2009 – IRL-ENG Youth Dual Match (Dublin, IRL) – +91KG Won against Sean Turner (IRL) 13:2
2009 – British Youth Championships 1991 Born Boxers (Liverpool, ENG) 1st place – +91KG Won against Rhys Williams (WAL) RSC 3rd round in the final
It was announced in December 2021 that Clarke had signed a contract with promotional companyBOXXER.[13] His first professional fight was against Jake Darnell, which was on the undercard of Amir Khan vs. Kell Brook. He won the fight via knockout in round one.[14]
Clarke challengedBritish,Commonwealth andWBO Europeanheavyweight championFabio Wardley atThe O2 Arena in London on 31 March 2024 with the fight ending in a split draw. One ringside judge scored the contest 114-113 to Wardley, another had it 115-112 for Clarke while the third ruled the bout a 113-113 tie.[15][16][17]
A rematch took place atKingdom Arena inRiyadh, Saudi Arabia, on 12 October 2024, which Wardley won by knockout in the first round.[18][19][20]