| Marcel Mayack | |
| Fullname: | Marcel Richard Mayack II |
| Nationality: | Cameroonian |
| Birth Date: | 17 November 1990 |
| Birth Place: | Ebolowa[1] |
| Weight: | 88kg (194lb) |
| Country: | Cameroon |
| Sport: | Athletics |
| Event: | Triple jump |
| Pb: | Triple jump: 16.80 m (2018) |
Marcel Richard Mayack II (born 17 November 1990) is a Cameroonian male track and field athlete who competes in the triple jump. He was the bronze medallist at the 2018 Commonwealth Games, setting a personal best of .[1]
Born in Ebolowa, he studied science and animation technology at Cameroon's National Institute of Youth and Sports.[1] he took up athletics in 2014 and represented Cameroon in three jumping events at both the 2015 and 2017 Summer Universiade. He placed tenth in the long and triple jump finals in 2017. At the Islamic Solidarity Games that year he was tenth in long jump and eleventh in triple jump. He also managed fifth in the long jump at the 2017 Jeux de la Francophonie.[2]
| 2015 | Universaide | Gwangju, South Korea | 19th (q) | High jump | 2.00 m | |
| 19th (q) | Long jump | 7.28 m | ||||
| 17th (q) | Triple jump | 14.69 m | ||||
| 2017 | Islamic Solidarity Games | Baku, Azerbaijan | 10th | Long jump | 7.20 m | |
| 11th | Triple jump | 15.28 m | ||||
| Jeux de la Francophonie | Abidjan, Ivory Coast | 5th | Long jump | 7.57 m | ||
| 9th | Triple jump | 15.37 m | ||||
| Universaide | Taipei, Taiwan | 19th (q) | High jump | 2.05 m | ||
| 10th | Long jump | 7.48 m | ||||
| 10th | Triple jump | 15.67 m | ||||
| 2018 | Commonwealth Games | Gold Coast, Australia | 11th | Long jump | 7.70 m | |
| 3rd | Triple jump | 16.80 m | ||||
| African Championships | Asaba, Nigeria | 8th | Long jump | 7.69 m (w) | ||
| 6th | Triple jump | 16.40 m | ||||
| 2019 | African Games | Rabat, Morocco | 15th (q) | Long jump | 6.94 m | |
| 7th | Triple jump | 15.99 m | ||||
| 2023 | Jeux de la Francophonie | Kinshasa, DR Congo | 5th | High jump | 1.95 m | |
| 6th | Triple jump | 15.68 m | ||||
| 2024 | African Championships | Douala, Cameroon | 7th | Triple jump | 15.88 m |