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  3. Zack Greinke

Zack Greinke profile image

Sponsor Zack Greinke

Athlete (retired)
Baseball - Arizona Diamondbacks
Niche
Reach
High
Response Rate

For brands

Want our team to run a deal with Zack Greinke, or find athletes like them?

Our Account Managers handle outreach, negotiation and delivery for brands on the platform.

About Zack Greinke — retired MLB baseball athlete

Why you should sponsor me for your next influencer campaign?

 Donald Zackary Greinke is an American professional baseball pitcher for the Arizona Diamondbacks of Major League Baseball (MLB). He previously played for the Kansas City Royals, Milwaukee Brewers, Los Angeles Angels of Anaheim, and Los Angeles Dodgers. The Royals selected Greinke in 2002 MLB draft after he won the Gatorade National Player of the Year Award as a high school senior. After playing in the minor leagues, he made his MLB debut in 2004. His career was nearly derailed by his battles with depression and anxiety in 2005 and 2006, and he missed most of the 2006 season. He returned in 2007 as a relief pitcher before rejoining the starting rotation in 2008 and developing into one of the top pitchers in the game. In 2009, he appeared in the MLB All-Star Game, led the major leagues in earned run average, and won the American League Cy Young Award.

Overview

🎂43
·
👨Male
📍Kansas CityMissouriUnited States

Is Retired

Arizona Diamondbacks

Pre-Packaged Projects

Frequently asked questions

Promote your brand and sponsor Zack Greinke today!

New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.

Pre-Packaged Projects

Social Media Deal

1 post & 1 story with the Zack Greinke promoting your product.

$400
Estimated Price
Sign up to start an offer

Brand Ambassador Deal

Long-term deal involving appearances, photoshoots, social media and more.

$3,600
Estimated Price
Sign up to start an offer

Appearance Deal

Have Zack Greinke make a live appearance at your next event

$600
Estimated Price
Sign up to start an offer

Custom

Need help on a custom package for this athlete?

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Frequently asked questions

Brands can sponsor Zack Greinke on OpenSponsorship by creating a free account, browsing Zack Greinke'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.

Zack Greinke 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 Zack Greinke 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, Zack Greinke's audience includes based in Kansas City, Missouri, United States. Brands can use this profile to evaluate reach, content niche, and sponsorship fit before sending a proposal.

Influencer Marketing Benchmarks: How Many Viewers Click an Influencer's Link? (2026)

Influencer Marketing Benchmarks: How Many Viewers Click an Influencer's Link? (2026)

Every brand running an influencer campaign on a cost-per-acquisition target eventually asks the same question: how many people will click the link? It decides how many creators you need, and whether your CAC target is realistic before you spend a dollar.

October 29, 2026

How to Measure Influencer Marketing ROI: A 5-Step Framework

How to Measure Influencer Marketing ROI: A 5-Step Framework

 

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

Ingredient Branding Done Right: How Immunotec Made Glutathione Mainstream

Ingredient Branding Done Right: How Immunotec Made Glutathione Mainstream

Glutathione has become one of the most talked-about molecules in wellness — the “master antioxidant” that shows up in podcasts, longevity conversations, and the supplement aisle alike. But behind that mainstream moment is a brand that has spent decades making glutathione credible: Immunotec. This is the story of how OpenSponsorship helped Immunotec turn that scientific authority into everyday consumer demand — and a real-world example of what ingredient branding looks like when it’s done right.

July 13, 2026

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Who is the greatest pitcher of this generation? It's time to debate - MLB.com

September 24, 2026

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I caught Greinke, Scherzer, Sale and Verlander. They share these 3 mental traits - The New York Times

August 11, 2026

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Tigers news: Justin Verlander to join Greinke with wild feat - Yahoo Sports

September 25, 2026

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Greinke, Hosmer, Moustakas join Royals Hall of Fame ballot - Royals Review

November 2, 2026

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Cardinals' Adam Wainwright's 200 career wins is his ticket to the Hall of Fame - Redbird Rants

September 24, 2026

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Justin Verlander’s Hall of Fame Case: Career Stats, Awards and Accomplishments - FOX Sports

September 25, 2026

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