Peninah Jerop Arusei is a distinguished Kenyan long-distance runner specializing in road races, particularly the half marathon.

Throughout her career, she has achieved significant milestones, representing Kenya on international stages and securing victories in various prestigious events.

Pulse Sports takes a look at Arusei's athletic journey and personal life.

Peninah Arusei was born on January 1, 1979 aged 46 years.

Born in Uasin Gishu County, a region renowned for producing elite runners, Arusei was immersed in a culture that values athletic excellence from a young age.

This environment played a pivotal role in shaping her passion and dedication to long-distance running.

Arusei's professional journey in long-distance running is a testament to perseverance, resilience, and excellence.

With a series of remarkable achievements spanning multiple years, she has established herself as a formidable athlete on the international stage.

Arusei’s rise to prominence began in 2007 when she claimed the gold medal in the 5000 meters at the Military World Games. This victory was an early indication of her potential in long-distance events.

The following year, Arusei earned the honor of representing Kenya in the 10,000 meters at the 2008 Beijing Olympics, finishing 18th. Despite the placement, the experience fueled her determination.

That same year, she emerged victorious at the Berlin Half Marathon and the Dam tot Damloop 10-mile race. Notably, during the latter, she recorded a personal best in the 15 km segment, showcasing her growing prowess in endurance races.

In 2009, Arusei set a new course record at the Berlin 25K with an impressive time of 1:22:31. This performance surpassed the previous African record held by Catherine Ndereba, further solidifying her reputation as one of the top long-distance runners.

Her success continued in 2010 when she secured victory at the Lisbon Half Marathon. Later that year, she added another significant milestone by winning a bronze medal at the IAAF World Half Marathon Championships in Nanning, China.

Her contribution helped Kenya clinch the team gold, reinforcing her status as a key figure in Kenya’s long-distance running dominance.

Arusei’s excellence extended into 2011, as she set a course record at the Paris Half Marathon. That same year, she made her much-anticipated marathon debut at the Vienna City Marathon.

Despite the challenges of transitioning to the full marathon, she finished in third place with a commendable time of 2:27:17, demonstrating her adaptability and endurance.

Peninah Arusei is married to three-time Salzburg Half Marathon champion Josphat Rotich.

Together the couple have a daughter Faith Chepng’etich, maintaining a residence in Iten Kenya where they lead a rather private life.

As of 2025, specific details regarding Peninah Arusei's net worth are not publicly disclosed.

However, considering her successful career, which includes prize winnings from international races, sponsorships, and endorsements, it is plausible that she has accumulated substantial earnings.

Many elite Kenyan runners have secured financial stability through their athletic achievements, and Arusei's consistent performance suggests a similar trajectory.