Dutch athlete (born 2003)
Stefan Nillessen
Stefan Nillessen at the 2024 European Cross Country Championships in Antalya, Turkey
Personal information Nationality Dutch Born (2003-01-02 ) 2 January 2003 (age 23) Sport Sport Athletics Event
Middle distance Achievements and titles Personalbests
Stefan Nillessen (born 2 January 2003) is a Dutchmiddle-distance runner. In 2024, he won theDutch Athletics Championships over1500 metres , and also won over that distance at theDutch Indoor Athletics Championships in 2025. He has competed at multiple major championships, including the2024 Olympic Games .[ 1]
He was selected for the1500 metres at the2022 World Athletics U20 Championships inCali , Colombia.[ 2] 2023 European Athletics U23 Championships inEspoo , Finland.[ 3]
He is one of a group of athletes coached by Tomasz Lewandowski. He signed a sponsorship deal withNike in 2024.[ 4] Turku , Finland on 18 June 2024.[ 5]
He won the Dutch national title over 1500m at theDutch Athletics Championships inHengelo , in June 2024.[ 6] 2024 Summer Olympics over 1500 metres and ran a personal best to qualify for the final. In the final he lowered his personal best to 3:30.75 to place ninth overall.[ 7]
Competing inKarlsruhe , Germany in February 2025, he won over3000 metres in a Dutch indoor record time of 7:37.10.[ 8] Liévin , Belgium on 13 February 2025.[ 9] Dutch Indoor Athletics Championships over 1500 metres.[ 10] 2025 European Athletics Indoor Championships inApeldoorn , Netherlands, where he reached the final of the 3000 metres.[ 11] [ 12]
He ran a personal best of 1:45.09 for the 800 metres in Hengelo on 9 June 2025.[ 13] Dream Mile at the2025 Bislett Games , part of the2025 Diamond League on 12 June 2025.[ 14] 2025 Meeting de Paris , running a Dutch national record time of 3:29.23.[ 15] 2025 European Athletics Team Championships First Division in Madrid on 29 June 2025.[ 16] 2025 European Athletics U23 Championships in Bergen, Norway running a time of 3:44.87.[ 17] Maciej Megier of Poland, in a national U23 record of 8:20.48.[ 18]
In September 2025, he was a semi-finalist over 1500 metres at the2025 World Championships inTokyo , Japan.[ 19] [ 20]
He is fromGroesbeek nearNijmegen . Nillessen comes from a famous running family from Groesbeek, known as "d’n Boes."[ 21] [ 22]
^ "Stefan Nillessen" .World Athletics . Retrieved3 July 2024 .^ "Stefan and Teun are going to the WJK in Colombia!" .cifla.nl . Retrieved3 July 2024 .^ "Gürth eclipses championship record to strike 3000m steeplechase gold for Germany" .European-Athletics . 15 July 2023. Retrieved3 July 2024 .^ Piest, Tijn (13 January 2024)."With a contract in hand, Stefan Nillessen is now fully focused on running" .Hardloopnetwerk.nl . Retrieved3 July 2024 . ^ "Nadine Visser evenaart NL record en Stefan Nillessen loopt B limiet 1500 mtr" .hardloopniews . 18 June 2024. Retrieved3 July 2024 .^ "Groesbekenaar Nillessen: Nederlands kampioen én bijna zeker van Olympische Spelen" .ad.nl . 30 June 2024. Retrieved3 July 2024 .^ "Men's 1500m Results - Paris Olympic Games 2024 Athletics" .Watch Athletics . 6 August 2024. Retrieved28 August 2024 .^ "Mitton and Mihambo make strong statements in Karlsruhe" .World Athletics . 7 February 2025. Retrieved8 February 2025 .^ "Ingebrigtsen smashes world indoor 1500m and mile records in Lievin" .World Athletics . 13 February 2025. Retrieved14 February 2025 .^ Roeske, Eric (23 February 2025)."Dutch world-class athletes shine at National Indoor Championships" .hardloopnetwerk.nl . Retrieved25 February 2025 . ^ "46 TeamNL atleten in actie tijdens EK Indoor Atletiek in Apeldoorn" .Atletiek.nl . 25 February 2025. Retrieved25 February 2025 .^ Broadbent, Chris (9 March 2025)."Majestic Ingebrigsten completes distance double for third time at Apeldoorn 2025" .European Athletics . Retrieved9 March 2025 . ^ Roeske, Eric (10 June 2025)."FBK Games leveren altijd: volop Nederlandse successen (recap)" .Hardloop Netwerk . Retrieved10 June 2025 . ^ Crumley, Euan (12 June 2025)."RECORD-BREAKING WARHOLM BACK TO HIS BEST" .Athletics Weekly . Retrieved13 June 2025 . ^ Gault, Jonathan (20 June 2025)."Azeddine Habz & Phanuel Koech (Who?) Run 3:27: Paris Diamond League Thoughts" .Lets Run . Retrieved21 June 2025 . ^ Broadbent, Chris (29 June 2025)."Guillemot and Nadar take 1500m victories for France and Portugal" .European Athletics . Retrieved30 June 2025 . ^ Broadbent, Chris (19 July 2025)."Training partners Laros and Nillessen land Dutch distance double in Bergen" .European Athletics . Retrieved19 July 2025 . ^ Broadbent, Chris (20 July 2025)."Poland's Maciej Megier denies Nillessen distance double in thrilling 3000m steeplechase final" .European Athletics . Retrieved20 July 2025 . ^ "World Athletics Championships, Tokyo 2025" .World Athletics . 18 September 2025. Retrieved25 September 2025 .^ "53 TeamNL atleten naar WK atletiek in Tokio" .Atletiek.nl . 1 September 2025. Retrieved1 September 2025 .^ "Atletiekevenement Next Generation Athletics: Jagen op limieten en records 'in je eigen stad' .gelderlander.nl . 28 May 2022. Retrieved3 July 2024 .^ "Running friends Nillessen and Janssen miss out on medals at National Championships, but remain determined" .Gelderlander . 18 February 2024. Retrieved3 July 2024 .
