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For brands
Our Account Managers handle outreach, negotiation and delivery for brands on the platform.
Kumi Tamura is a Sarah Lawrence College basketball creator with a polished, community-driven presence that blends hoops, travel, and lifestyle storytelling. Her on-court credibility, international travel content, and clean, brand-friendly visuals make her a strong fit for campaigns reaching an active Gen Z audience.
Sarah Lawrence College
Sarah Lawrence College
Japan
NBA Cares, ASPCA, American Cancer Society
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Kumi Tamura promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Kumi Tamura make a live appearance at your next event
Brands can sponsor Kumi Tamura on OpenSponsorship by creating a free account, browsing Kumi Tamura'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.
Kumi Tamura 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 Kumi Tamura starts at $180 for a social media post, $600 for a appearance and $600 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, Kumi Tamura's audience includes 2K+ Instagram followers, interests including Activewear, Fitness & Performance, Fashion, Accessories, Basketball, and more, based in New York, NY, 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