 This popular Nicaraguan fitness model has attracted over 4.7 million Instagram followers and more than 90,000 Twitter fans.
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Dolly Castro promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Dolly Castro make a live appearance at your next event
Brands can sponsor Dolly Castro on OpenSponsorship by creating a free account, browsing Dolly Castro'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.
Dolly Castro 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 Dolly Castro starts at $4,000 for a social media post, $6,000 for a appearance and $36,000 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, Dolly Castro's audience includes based in Managua, Managua Department, Nicaragua. Brands can use this profile to evaluate reach, content niche, and sponsorship fit before sending a proposal.
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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
Genisys Credit Union, headquartered in Auburn Hills, Michigan, has done something most brands never do with athlete sponsorship: it kept renewing. What started as a single partnership with Detroit Lions tight end Sam LaPorta has become a multi-year, two-athlete program that Genisys has renewed and expanded every season since 2024, adding Lions wide receiver Isaac TeSlaa in 2025 and renewing him again in 2026.
October 6, 2026
