Early years

Mazingue began learning how to skate in 2006 as a three-year-old. By the 2012–13 season, she was competing in ice dance with Jean-Hans Fourneaux for France. The duo trained at Rouen Olympic Club in Rouen.^[1]

By 2018, Mazingue had teamed up with Maxime Dos Reis for France. Mazingue/Dos Reis competed together from 2018 to 2020. During their partnership, they appeared at six junior international events and finished sixth at the 2019 and 2020 French Junior Championships. The team split after the onset of the COVID-19 pandemic brought the 2019–20 season to an end. The pandemic made searching for a new partner difficult, but Mazingue eventually arranged a tryout in France with Estonian ice dancer Marko Jevgeni Gaidajenko in December 2020. In January 2021, they announced their partnership.^[2]

2021–2022 season

Mazingue/Gaidajenko made their international debut in August at the 2021 JGP France II, the second of two events held in Courchevel. There, the team placed fifth in the rhythm dance but rose to third in the free dance to claim the bronze medal overall behind American teams Brown/Brown and Flores/Tsarevski. Their medal marked the first medal for Estonia on the Junior Grand Prix circuit in ice dance since 2011.^[3] At their second JGP event, the 2021 JGP Austria, Mazingue/Gaidajenko finished ninth.^[4]

Moving up to the senior level, Mazingue/Gaidajenko made their Challenger Series debut in November at the 2021 CS Warsaw Cup. They placed fifteenth at the event. Later in December, they won their first senior national title at the 2022 Estonian Championships before returning to the Challenger Series at the 2021 CS Golden Spin of Zagreb, where they finished ninth. Due to their placement at Estonian nationals, Mazingue/Gaidajenko were assigned to Estonia's berth in ice dance at the 2022 European Championships.^[4] On the decision to compete at both levels in one season, atypical in ice dance, Gaidajenko would later note "it's usually more challenging because it's usually absolutely two different rhythm dances, but last season that was the same subject, like a hip hop and street culture. Also, it was both the blues. It's Midnight Blues (senior) and Blues (junior), so it was easier."^[2]

At the European Championships, held in Gaidajenko's hometown Tallinn, Mazingue/Gaidajenko set a new personal best in the rhythm dance to qualify to the free dance in twentieth place. They maintained their standing in the free dance and finished twentieth overall.^[4] Mazingue/Gaidajenko concluded the season at the 2022 World Championships, held in Montpellier with Russian dance teams absent due to the International Skating Union banning all Russian athletes due to their country's invasion of Ukraine.^[5] They qualified to the free dance and finished nineteenth.^[4]

2022–2023 season

The Russo-Ukrainian War necessitated that Mazingue and Gaidajenko leave their Moscow training location, which had already been inconvenient in terms of visa access. In advance of the next season, they opted to move to train at the Ice Academy of Montreal, widely considered the world's top ice dance training center, under Canadian coaches Marie-France Dubreuil and Patrice Lauzon and Frenchman Romain Haguenauer.^[2] They were scheduled to begin the season at the Finlandia Trophy in October, but a week in advance of the event, they had a major training accident. After Gaidajenko tripped while practicing a lift, Mazingue hit her head on the ice, suffering a skull fracture and intracranial bleeding that required surgery.^[6]

After months of physiotherapy, Mazingue was allowed to return to the ice in January. Describing her resumption of training later, she said that "the day I finally got on the ice, I started crying because I had so many emotions at once — excitement, sadness, joy. All at once! I cried and hugged Marko and then I knew that nothing can stop me, one day I will become an Olympic champion. Because this accident was crazy, but I came back to the ice and this is my victory."^[6]

After resuming training, with Mazingue wearing a protective helmet until March, the team was eventually cleared to compete at the 2023 World Championships in Saitama. Gaidajenko explained that "we made this decision for Solene and for us as a couple. Every person needs a goal to strive for."^[6] Mazingue/Gaidajenko placed twenty-eighth in the rhythm dance, with a score of 55.67 points. They did not qualify for the free dance, but Mazingue stated afterward that they went in knowing that was unlikely, and that had they managed to do so, they would have withdrawn beforehand as they were not ready for it yet.^[7]

As a result of their low placements in the season, the team lost their financial support from the Estonian Skating Union, and began to fundraise via GoFundMe.^[2]

With Gaidajenko

With Gaidajenko for Estonia

With Dos Reis for France

With Gaidajenko