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Mark Calleja is a former University of South Florida basketball standout who brings a polished, lifestyle-driven presence to social content. With a mix of travel, fashion, and elevated everyday imagery, he’s a strong fit for brands looking to reach an engaged audience through authentic, aspirational storytelling.
I’m a 21 year old college athlete at University of South Florida. I feel have a great impact on the community around me since I’m very personal and from the Tampa area. I enjoy making connections and growing your brand and also mine at the same time.
University of South Florida
University of South Florida (USF)
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Mark Calleja promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Mark Calleja make a live appearance at your next event
Brands can sponsor Mark Calleja on OpenSponsorship by creating a free account, browsing Mark Calleja'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.
Mark Calleja 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 Mark Calleja starts at $100 for a social media post, $600 for a appearance and $2,400 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, Mark Calleja's audience includes 3K+ Instagram followers, interests including Home Life, Pets, Fashion, Travel, Photography, and more, based in Tampa, Florida, United States. 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