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National Baseball Hall of Fame inductee and a longtime color analyst for the Minnesota Twins. A two-time World Series champion in 1979 with the Pittsburgh Pirates and 1987 with the Twins, a two-time All-Star and a 287-game winner over a 20+ year career. Beloved by Twins fans and was known as a prankster during playing career.
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Bert Blyleven promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Bert Blyleven make a live appearance at your next event
Brands can sponsor Bert Blyleven on OpenSponsorship by creating a free account, browsing Bert Blyleven'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.
Bert Blyleven 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 Bert Blyleven starts at $6,000 for a social media post, $9,000 for a appearance and $54,000 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, Bert Blyleven's audience includes interests including Home Life, Marriage & Family, Kids, based in Minneapolis, Minnesota, 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