Mikayla "Kay Kay" Nielsen

At 20 years old, Mikayla "Kay Kay" Nielsen is already one of the most accomplished young riders in women's motocross. Born July 1, 2005, in Riverside, California — a racing hotbed where every backyard seems to grow champions — Nielsen grew up surrounded by dirt, speed, and the intensity that defines California motocross culture. Her accomplishments read like a blueprint for how to progress through the amateur ranks and emerge competitive at the professional level: three AMA National Grand Prix Championship Pro Women's titles, now in her third consecutive year with SLR Honda, and a first career WMX victory earned at her home track in 2025.

That home-track win matters. It's one thing to perform well at unfamiliar venues hundreds of miles from home; it's another to deliver when your family, your friends, and your entire community are watching. Nielsen didn't just show up at her home race in 2025 — she executed flawlessly and took the victory. It was validation that her speed translates across different conditions, different tracks, and different pressure levels. She finished 2025 third in the Women's Motocross Championship with 240 points, a solid standing that reflects a rider still in the early stages of her professional career but already operating at a championship-contention level.

Three Years with SLR Honda

Mikayla's partnership with SLR Honda spans three consecutive championship seasons, a consistency that reflects strong chemistry between rider and team. In the modern Women's Motocross environment, team stability matters tremendously. It allows riders to build trust with mechanics, dial in their machines, develop systems that work, and focus entirely on racing. Nielsen's decision to remain with SLR Honda through 2026 and beyond suggests confidence in the team's direction and commitment to her development.

SLR Honda has become one of the premier operations in women's motocross, supporting riders who combine raw speed with professional mentality and championship aspirations. Nielsen fits that mold perfectly. She brings the talent, the work ethic, and the maturity to execute at the professional level — and SLR, in turn, provides the machinery and support system that allows her to compete consistently. The 2025 season, culminating in a third-place finish and a breakthrough victory at her home track, shows that this partnership is bearing fruit.

The NGPC Resume

Before turning professional, Nielsen dominated the AMA National Grand Prix Championship Pro Women's division, claiming three titles. The NGPC is an elite proving ground — the races are fiercely competitive, the talent level is high, and the winners are riders destined for professional careers. Nielsen's three championships in this series validate her speed and consistency at the amateur-to-pro transition level. They also established her as one of the top young American women's motocross prospects entering the professional ranks.

The progression from NGPC domination to professional racing is not always linear. Some riders make the jump and struggle; others elevate immediately. Nielsen has taken the middle path — consistent progress, incremental improvement, and a clear trajectory toward championship contention. Her 2025 third-place finish wasn't a disappointment; it was evidence that a 20-year-old with three NGPC championships is evolving into a threat that experienced riders need to take seriously.