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Duane Crespo Jr. is an active combat sports creator and athlete whose content blends PowerSlap, MMA, boxing, and stunt-driven entertainment. He offers brands an energetic, fight-fan audience with strong performance, humor, and personality-led content that stands out across social platforms.
I’m an ASD athlete and former marine. Hard working dad being top level athlete in my sport. All for working together and growing brand together. While reaching my goals as an athlete
Mixed Martial Arts (Mma), Boxing
Full Contact Promotions
Puerto Rico
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Duane Crespo jr promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Duane Crespo jr make a live appearance at your next event
Brands can sponsor Duane Crespo jr on OpenSponsorship by creating a free account, browsing Duane Crespo jr'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.
Duane Crespo jr 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 Duane Crespo jr starts at $360 for a social media post, $3,600 for a appearance and $6,000 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, Duane Crespo jr's audience includes 6K+ Instagram followers, interests including Fitness & Performance, Apparel, Food & Drink, Combat Sports, Stunt, and more. 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