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Simon Marcus is a championship-level Muay Thai and MMA athlete with authentic combat-sports credibility, a proven winning record, and strong crossover appeal for performance, training, and lifestyle brands. As the face behind The One Muay Thai and an active father-brand voice, he brings elite athletic storytelling, high-energy content, and a loyal audience that values discipline, resilience, and results.
Greetings, I am writing on behalf of 8x Muay Thai & Kickboxing World Champion, 2x Glory Kickboxing World Champion, Simon Marcus. Instagram Link to Simon's profile: https://www.instagram.com/simonmarcusno1/?hl=en Simon Marcus has been competing on the largest stages and organizations in Kickboxing and Muay Thai for several years. He has made a lasting impression as a highly skilled & talented martial artist in countries such as China, Europe and his home country, Canada.
8x Muay Thai World Champion
2x Kickboxing World Champion
Followed by Joe Rogan on Instagram whom owns the largest podcast
96k instagram followers w/ great activity
Highest Views on INSTAGRAM Video: 8.4M Views
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Simon Marcus promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Simon Marcus make a live appearance at your next event
Brands can sponsor Simon Marcus on OpenSponsorship by creating a free account, browsing Simon Marcus's profile, and sending a sponsorship proposal for social posts, appearances, or integrated campaigns. OpenSponsorship handles messaging, deliverables, and deal terms in one platform so you can connect directly with this athlete.
Simon Marcus is listed on OpenSponsorship and available for brand sponsorships. Brands can review campaign packages, audience details, and pricing on this profile, then submit a proposal to start a partnership with this athlete.
According to OpenSponsorship, estimated pricing to sponsor Simon Marcus starts at $600 for a social media post, $9,000 for a appearance and $4,800 for a brand ambassador campaign. Final rates depend on deliverables, usage rights, and campaign scope. Sign up on OpenSponsorship to view packages and send a proposal.
According to OpenSponsorship, Simon Marcus's audience includes 109K+ Instagram followers, interests including Health & Wellness, Vitamins & Supplements, Fitness & Performance, Activewear, Apparel, and more, based in Toronto, ON, Canada. Brands can use this profile to evaluate reach, content niche, and sponsorship fit before sending a proposal.

How do you measure influencer marketing ROI when half the numbers social media gives you are vanity metrics? It is the question brands ask us most, and it came up again when I joined Massimo Marinelli on the Berkida Ventures Podcast. After more than ten years and thousands of brand deals with athletes and creators at OpenSponsorship, here is how we think about it, and the framework we use with our clients.
October 28, 2026