| jaar | competitie | locatie | discipline | resultaat | |
| 2019 | World Championships | Doha, Qatar | 4 × 400 m relay | 5th (f) | 3:27.15 |
| split time for Hanne | 1st. pos. | 52′ 10″ | |||
| 2019 | World Relays | Yokohama, Japan | 4 × 400 m relay | 2nd (B f) | 3:31.71 |
| split time for Hanne | 1st. pos. | 52’30” | |||
| 2019 | European Indoor Championships | Glasgow, United Kingdom | 4 × 400 m relay | 5th (f) | 3:32.46 |
| 2018 | European Championships | Berlin, Germany | 4 × 400 m relay | 4th (f) | 3:27.69 |
| split time for Hanne | 2nd pos. | 51’10” | |||
| 2013 | European U23 Championships | Tampere, Finland | 4 × 100 m relay | – | DQ |
| 2012 | European Championships | Helsinki, Finland | 4 × 100 m relay | 9th (h) | 43.81 |
| 2009 | European Junior Championships | Novi Sad, Serbia | 4 × 400 m relay | 4th (f) | 3:41.86 |
Nationale Records
| onderdeel | prestatie | datum | locatie |
| 4×400 m vrouwen – Hanne Claes, Imke Vervaet, Paulien Couckuyt, Camille Laus | 3.26,58 | 2019 | WK in Doha |
| 4×400 m mixed – Dylan Borlée, Hanne Claes, Camille Laus, Kevin Borlée | 3.14,22 | 2019 | WK in Doha |
| 4x400m vrouwen Indoor – Cynthia Bolingo, Hanne Claes, Margo Van Puyvelde, Camille Laus | 3.32,46 | 2019 | EK indoor in Glasgow |
| 4x400m vrouwen – Cynthia Bolingo, Hanne Claes, Justine Grillet, Camille Laus | 3.27,69 | 2018 | EK in Berlijn |
| 4×400 m vrouwen – Margo Van Puyvelde, Hanne Claes, Cynthia Bolingo en Camille Laus (verbetering van 38 jaar oude Belgische record) | 3.29,06 | Juni 2018 | Bern |
Hanne Claes 