On Enters HYROX Racing With Cloud X Tempo Pro and Elite Athlete Signings

On is stepping into hybrid fitness racing with clear intent. By signing Alexander Roncevic and Ida Mathilde Steensgaard and launching the Cloud X Tempo Pro, the Swiss brand is treating this young discipline as its next big performance frontier, not a side project. The move links world-record credentials with a purpose-built shoe. It is designed to handle both hard running and brutal functional stations.

From hybrid podiums to product lab

On’s entry into fitness racing starts with credibility. Alexander Roncevic, a former HYROX World Champion, currently holds the Men’s Pro Singles world record with a historic 51:59 finish and also owns the Men’s Pro Doubles world record. He is one of the sport’s true pace-setters. That makes him an ideal testing ground for any new performance concept.

Alongside him, Ida Mathilde Steensgaard brings a different kind of versatility. As a two-time Obstacle Course Racing World Champion who has transitioned into HYROX’s Elite 15, she has stacked podiums across global races, including a recent Elite Doubles silver at the EMEA Championships. Together, they give On access to both the pure engine of the sport and the multi-skill adaptability that defines hybrid competition.

Co-developing a shoe for a new sport

The Cloud X Tempo Pro is not a repurposed running shoe with a new marketing line. On built it with Roncevic through months of lab testing, biometric analysis and live race feedback. Then they watched him take prototypes onto the circuit and smash both Individual and Doubles world records in them. This feedback loop — test, refine, race, repeat — sits at the heart of how On wants to enter this space.

Roncevic describes feeling “at home” with the brand from day one, pointing to how quickly the team brought him into the development process. That detail matters in a young sport where athletes often feel like they’re adapting gear meant for other disciplines. Here, the shoe exists because of fitness racing’s needs, not in spite of them.

Design and tech: built for speed and stations

Hybrid fitness racing demands a split personality from footwear: elite run performance plus serious stability under load. The Cloud X Tempo Pro leans into that dual brief. Underfoot, a full-length carbon Speedboard acts as the engine. It drives powerful takeoffs and extra speed across every run segment. A dynamic rocker geometry layers on top. As a result, athletes roll smoothly through each stride and station transition.

For cushioning, On uses Helion HF hyper foam, tuned for ultra-light weight and sharp responsiveness. That combination aims to keep legs fresh across repeated run–workout cycles without feeling mushy or unstable. On top, a Missiongrip outsole delivers grip and controlled traction on the varied surfaces that define fitness racing. These include polished floors, sled tracks, and functional zones.

Because heavy stations can break a shoe as fast as any run split, the upper gets a locked-in treatment. A supportive midfoot cage and integrated strap system are designed to keep the foot fully secure under sled pushes, lunges, wall balls and other loaded moves. The goal is simple: no sliding, no foot swim, no second-guessing your base when things get heavy.

Why hybrid fitness is On’s next frontier

On has already carved out a strong lane in running with its Cloud franchise and visible “Swiss engineering” story. Targeting hybrid fitness racing lets the brand show that its run DNA can stretch into multi-modality performance. Here, athletes need to be fast and strong in the same shoe. As Head of Product Vertical Training Will Moroski puts it, the Cloud X Tempo Pro is engineered “from the ground up” for this sport. It fuses run tech with uncompromising support.

The strategic upside is clear. Hybrid fitness racing is one of the fastest-growing performance communities, with packed global events, clear time-based bragging rights and a training culture that spans gyms, studios and outdoor spaces. If On can own the footwear conversation here early, it gains a powerful halo effect back into everyday training. Moreover, it can influence performance running.

What this means for athletes and the market

For athletes already deep into HYROX-style events, the Cloud X Tempo Pro offers a dedicated tool instead of a compromise between race flat and cross-trainer. It promises “absolutely on point” running performance, in Roncevic’s words, while still delivering enough stability to trust in the nastiest stations. That single-solution story will appeal to competitors. In fact, they want to show up with one pair that can do it all.

For the wider performance market, this launch signals a shift. Brands are starting to treat hybrid fitness not as a trend but as a distinct performance category with its own gear ecosystem. On’s decision to bring a world-record-tested, CHF300 Swiss-engineered shoe to a global audience in August 2026 shows just how high the stakes have become. If the Cloud X Tempo Pro delivers on race day, it won’t just boost On’s reputation; it will help define what serious hybrid fitness footwear looks like for the next wave of athletes.