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Calista Parts is an accomplished Muay Thai and boxing athlete based in Tallinn, with a strong fight-sport identity and authentic training content that makes her a compelling partner for performance, wellness, and travel-focused brands. Her mix of discipline, competitive credibility, and personality-driven storytelling helps campaigns feel both high-energy and genuinely relatable.
A young aspiring athlete with the heart of a Champion. A hard worker who became the WMC World Champion at the age of 18. This young lady has sacrificed everything for her dream of becoming the best Muay Thai fighter in the world. She knows what it takes & is willing to put in the work. Whenever her friends are out partying and having fun, you'll find her putting in work at the gym. Always the first one there and the last one to leave. 80+ fights at the age of 20. First female fight ever on "Thai Fight" and "Muay Thai Superchamp". 2x Estonian Champion in Muay Thai. 2x Estonian Champion in K1. 8 belts & the represantive face of Kambingwhit Energy Drink. This is just the beginning of her journey.
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Calista Parts promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Calista Parts make a live appearance at your next event
Brands can sponsor Calista Parts on OpenSponsorship by creating a free account, browsing Calista Parts'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.
Calista Parts 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 Calista Parts 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, Calista Parts's audience includes 17K+ Instagram followers, interests including Fitness & Performance, Health & Wellness, Home Life, Pets, Music, and more, based in Tallinn, Harju County, Estonia. 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