Nigerian-born leadership coach and author, Peter Adeleke, has entered the Guinness World Records after successfully delivering the longest leadership lesson, clocking a total of 28 hours and 45 minutes in Calgary, Canada.

Adeleke embarked on the marathon lecture in August with a target of 30 to 48 hours, aiming to surpass the previous record of 24 hours. On Monday, he announced on Instagram that Guinness World Records had officially approved his attempt, confirming him as a new title holder.

A confirmation message from GWR stated: “We are thrilled to inform you that your application for the longest leadership lesson has been successful and you are now the Guinness World Records Title Holder!”

The record was also published on the Guinness World Records website: “The longest leadership lesson is 28 hr 45 min and was achieved by Peter Adeleke (Canada), in Calgary, Canada, on 30 August 2025. Peter is an author, speaker and qualified leadership expert. He set out to achieve a record in the field to change the narrative of leadership. He hopes to raise the bar in leadership development and spark conversation around transformational leadership.”

Celebrating the milestone on Instagram, Adeleke wrote: “It’s official! I am humbled and honoured to announce that I am now a Guinness World Records Holder for the Longest Leadership Lesson in history. This journey was not by strength, but by grace, resilience, and the unwavering support of an incredible team. To God alone be the glory.”

On his website, Adeleke further reflected on the experience, explaining why he ended earlier than his initial 48-hour target: “Originally, I had set out to teach for 48 hours, but I completed the feat in 28 hours instead. And I’ve learned that in leadership — and in life — success isn’t always about hitting the exact target you set. It’s about pushing boundaries, discovering your true limits, and creating meaningful impact along the way. Did I break the record? Yes, I did — and it’s now official and confirmed!”

This accomplishment places Adeleke among a growing list of Nigerians with Guinness World Records titles.

In a related development, celebrity chef Hilda Baci recently set a new record for the largest serving of Nigerian-style jollof rice, weighing 8,780 kilograms (19,356 lb 9 oz), at the Gino World Jollof Festival in Lagos, making her a two-time Guinness World Records holder.

Back in May 2023, she had achieved global recognition by setting the record for the longest cooking marathon by an individual, cooking for 93 hours and 11 minutes, surpassing the previous 87 hours and 45 minutes record held by Indian chef Lata Tondon.