Lake Ol Bolosatt Half Marathon 2025: Running for Glory, Conservation, and Clean Sport

Thousands of athletes gathered on June 15, 2025, to participate in the Lake Ol Bolosatt Half Marathon, making it the most attended edition to date. Compared to 2024, this year saw a remarkable increase in registered participants, with fresh talent joining returning runners to make a bold statement for clean sport and conservation.

Among the standout athletes was Anthony Kanyambu Nzisa, who has maintained an active presence throughout the 2025 road racing calendar. Known for his endurance, discipline, and advocacy for clean sport, Nzisa finished in 3rd place, clocking an impressive 1:03:17. Nzisa, who trains in Machakos, dedicated his performance to the conservation efforts for Lake Ol Bolosatt, reinforcing his belief that sport and environmental responsibility go hand in hand.

Amos Kiprotich, who clinched 1st place in the men’s category with a time of 1:03:07, also lent his voice to championing the preservation of the lake. Kiprotich emphasized the importance of athletes using their platforms to protect Kenya’s natural resources, especially iconic sites like Lake Ol Bolosatt.

In Kenya, long-distance running is more than just a sport—it is a national identity built over generations. The Lake Ol Bolosatt Half Marathon 2025 (also locally known as the Ol Bolosatt Half Marathon) exemplified this legacy, combining athletic excellence with a moral commitment to clean running and ecological awareness.

Held along the scenic shoreline of Lake Ol Bolosatt in Nyandarua County, the event attracted elite runners, emerging talents, environmentalists, and athletics stakeholders from across the country. The competition included strict anti-doping protocols in compliance with Athletics Kenya and World Athletics standards, reinforcing Kenya’s commitment to clean, transparent competition.

 Why Lake Ol Bolosatt?

Lake Ol Bolosatt is not only a vital ecosystem but also Nyandarua’s only natural lake. It serves as a critical water catchment area and habitat for hippos, endangered bird species, and diverse wetlands. However, increasing environmental threats have placed the lake under pressure.

This year’s half marathon was organized to spotlight the urgent need for conservation and to mobilize resources for the protection of this natural treasure. The theme “Run for the Lake, Run for Life” captured the spirit of the event, linking physical endurance with ecological responsibility.

Upholding Integrity: Doping Controls

Doping control stations were in place at the finish line and strategic checkpoints. All podium finishers and randomly selected participants underwent mandatory drug testing, managed by certified anti-doping officials. These measures reflected the organizers’ commitment to promoting integrity and safeguarding the health and credibility of the sport.

The Half Marathon – Elite Performances, Clean Triumphs

The men’s and women’s half-marathon events showcased world-class athleticism. Many participants had prepared through altitude training and rigorous schedules, arriving with peak performance conditioning.

Top Male Half Marathon Results

     1.     Amos Kiprotich – Delivered a well-structured race plan, finishing in 1:03:07 to take 1st place.

     2.     Vincent Kimutai Towett – A 20-year-old from the Rift Valley region, secured 2nd place with a time of 1:03:16.

     3.     Anthony Kanyambu Nzisa – Maintained consistent pace and composure to take 3rd place, clocking 1:03:17

All podium finishers underwent and passed doping control procedures, upholding the high standards of fair competition.

Women’s Division: Speed, Grace, and Purpose

    1.     Evalyne Chirchir – Captured 1st place in 1:11:28, leading from early in the race and maintaining her advantage.

    2.     Jackline Chepngeno – Only 19 years old, she made a memorable debut, taking 2nd place with 1:13:20.

    3.     Jane Moraa – Representing Nyandarua County, delivered a strong performance to finish 3rd in 1:14:51.

All three female athletes also complied with post-race anti-doping testing, reinforcing the half marathon’s zero-tolerance policy.

Rising Stars: Junior Athletes Make Their Mark

The 2025 edition highlighted the depth of emerging talent from across Kenya:

       ·         Brian Mutuku (18) placed in the top 10, showing a mature race strategy and excellent form.

       ·         Evaline Njeri (17) debuted impressively, securing 6th place among the women.

These junior athletes reflected the success of local development programs supported by Athletics Kenya and grassroots clubs.

Beyond the Track: Conservation in Action

The half marathon wasn’t just about competition; it was about a cause. Proceeds and visibility from the event were directed toward several conservation initiatives, including:

      ·         Reforestation and tree planting along degraded sections of the lake

      ·         Environmental education outreach in neighboring schools

      ·         Restoration of habitats for key wildlife species

Athletes and volunteers participated in symbolic tree planting ceremonies post-race, underscoring the connection between sport and sustainability.

The Atmosphere: Unity Through Running

Cultural performances, community markets, and youth choirs added vibrancy to the day. Traditional dancers welcomed runners at the finish line, while vendors served Nyandarua delicacies. Health booths promoted wellness, and environmental partners offered clean-up support to ensure an eco-friendly event.

The marathon earned praise for its excellent coordination, safety protocols, and commitment to clean sport and conservation.

Looking Ahead

The Lake Ol Bolosatt Half Marathon 2025 stands as a model for combining high-level athletics with social impact. With champions like Anthony Kanyambu Nzisa and Amos Kiprotich setting the pace, both literally and ethically, the future of the event looks promising.

As the last runner crossed the finish line and the sun dipped behind the Aberdare ranges, it was clear: this wasn’t just a race. It was a national statement on endurance, integrity, and environmental guardianship.

Until next year, train clean, race hard, and protect the lake.