Kenyan teacher Fenwick Maloba speaks after teaching maths for 45 hours
By Valerian Khakayi, June 29, 2026Kenyan teacher Fenwick Cyril Maloba has expressed gratitude after successfully completing a 45-hour continuous mathematics lesson at Menengai High School in Nakuru County, a feat that saw him surpass the previous Guinness World Record for the longest marathon mathematics lesson.
Maloba, a mathematics and physics teacher at Menengai High School, began the challenge at 8:00 a.m. on Friday, June 26, 2026, and concluded it on Sunday, June 28, after teaching mathematics non-stop for 45 hours under the theme “Maths Is Not a Monster”.
“45 HOURS. ONE TEACHER. ONE GOAL: A WORLD RECORD. On Friday, 26th June, at 8:00 AM, history begins,” Maloba announced.
“I’m attempting to set a Guinness World Record for the Longest Mathematics Lesson—teaching continuously for 45 hours straight, with nothing but short breaks to keep going.”
Following the completion of the marathon, Maloba, on Monday, June 29, 2026, announced the achievement on social media, thanking God and everyone who supported him throughout the journey.
“We broke the Guinness World Record. All glory to God, the longest marathon mathematics lesson officially achieved!’ Maloba wrote.
“Thank you to everyone for your prayers, support and encouragement. We did it together! To God be all the glory! Your grace. Your strength. Your faithfulness. It is done!”
Describing the achievement as a historic milestone, Maloba said it would leave a lasting legacy for future generations.
“A historic moment. A legacy for generations. You prayed. You supported. You believed. We achieved!” he stated.
45-hour challenge
The mathematics and physics teacher had initially planned to undertake the challenge in January 2026. However, the attempt was postponed due to documentation and logistical delays before it was rescheduled for June.
The record attempt, which ran for 45 hours, came after months of preparation and an earlier postponement due to documentation and logistical challenges. Throughout the challenge, Maloba maintained his mission of inspiring learners and promoting STEM education by proving that mathematics should not be feared.
According to Guinness World Records guidelines, Maloba’s performance exceeded the previous benchmark of 31 hours, 42 minutes and 54 seconds, which was set by Nigerian educator Sanusi Kazeem in April 2025.
The record attempt was conducted under strict Guinness rules, including continuous video recording, independent witnesses and rotating groups of students in the classroom. The achievement now awaits official ratification by Guinness World Records.