HYROX Stockholm: Pro Doubles Domination for Fern & Kate
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Fern Gardiner and Kate Hutchinson delivered a statement performance at HYROX Stockholm, taking a commanding Pro Doubles victory and joining the coveted sub-57 club in emphatic style.
The two FLYCARB-fuelled British athletes were untouchable on the day. The girls brought so much fire that they all but melted the Stockholm snow.
The Numbers Behind the Win
Let’s start with the running; the backbone of any HYROX race. Fern and Kate covered the full 8 km of running in 29:49, dipping comfortably under the 30-minute mark with a ferocious average pace of 3:43 per km, putting them near the top of the leaderboard. Their workout performance was just as impressive. Across the eight stations, they stopped the clock at 22:41, with standout efforts including:
- Sled Pull: 2:56
- Sandbag Lunges: 2:32
What truly underpinned this massive PB, however, was consistency. HYROX rewards athletes who can maintain form, composure, and pace when fatigue builds, and with BICARRB Fern and Kate delivered exactly that.

Why BICARRB Matters in HYROX
This is exactly where FLYCARB’s BICARRB makes the difference. HYROX demands repeated high-intensity efforts with minimal recovery, a perfect storm for muscle acidity and burning legs. BICARRB’s powerful bicarbonate buffering helps athletes:
- Commit to fast starts
- Beat back muscle burn as fatigue accumulates
- Maintain form late in the race
In short, BICARRB helps athletes hold form, pace and power, enabling them to execute when it matters most.
If you've got a HYROX coming up, and you want to try BICARRB, head over to our shop
A Huge 2025 for Fern Gardiner
We’re incredibly proud to celebrate Fern’s progress in 2025 so far:
- ? Two wins
- ?? Three podiums
A clean sweep of 100% top-ten finishes
What a year!