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Matt Brash is a Seattle Mariners pitcher with authentic MLB credibility, a strong Canadian fan connection, and polished content that blends elite on-field performance with standout lifestyle imagery. He’s a natural sponsor fit for brands looking to reach baseball fans, performance-driven audiences, and consumers who respond to high-energy sports storytelling.
Matt Brash is a professional pitcher for the Seattle Mariners.
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Matt Brash promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Matt Brash make a live appearance at your next event
Brands can sponsor Matt Brash on OpenSponsorship by creating a free account, browsing Matt Brash'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.
Matt Brash 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 Matt Brash 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, Matt Brash's audience includes 18K+ Instagram followers, interests including Fitness & Performance, Activewear, based in Kingston, ON, Canada. 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