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MJ Seo is a college baseball athlete at Louisiana State University whose profile blends competitive game-day action, training-focused content, and authentic LSU pride. He’s a strong fit for brands in sports, performance, and athletic apparel that want credible college-athlete storytelling with high-energy visuals.
Louisiana State University
Louisiana State University (LSU)
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the MJ Seo promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have MJ Seo make a live appearance at your next event
Brands can sponsor MJ Seo on OpenSponsorship by creating a free account, browsing MJ Seo'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.
MJ Seo 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 MJ Seo starts at $120 for a social media post, $600 for a appearance and $120 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, MJ Seo's audience includes 10K+ Instagram followers, interests including Fitness & Performance, Activewear, Baseball, Sports Training, based in Dallas, TX, 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