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Jonathan Grishman is an Owner at Alpha Performance and is based in Dallas, Texas, United States. He has worked as Head Baseball Coach at Texas Giants Baseball Academy., Pro Baseball Player at Free Agent, and Baseball Instructor/Coach at Highland Park Scots Youth Baseball Organization. Jonathan attended Lincoln University between 2010 and 2013.
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
1 post & 1 story with the Jonathan Grishman promoting your product.
Long-term deal involving appearances, photoshoots, social media and more.
Have Jonathan Grishman make a live appearance at your next event
Brands can sponsor Jonathan Grishman on OpenSponsorship by creating a free account, browsing Jonathan Grishman'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.
Jonathan Grishman 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 Jonathan Grishman starts at $400 for a social media post, $600 for a appearance and $3,600 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, Jonathan Grishman is active on the platform for brand partnerships. View social reach, content focus, and campaign options on this profile to evaluate fit for your brand.

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