golf
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Wojciech Blaszak
Wojciech Blaszak is the co-founder and CEO of Golf (YC X25), a San Francisco company building a security and governance control plane for the Model Context Protocol (MCP), the layer where AI agents connect to company data. He started his first business at 14, grew it to around $200k in revenue, and left university after a single semester to build full-time with his longtime collaborator Antoni Gmitruk. Golf began as an open-source framework for shipping production MCP servers and grew into an enterprise product that discovers shadow AI, enforces per-tool policies, and produces compliance-ready audit trails.
Mizuno USA
Mizuno USA is the North American arm of Mizuno Corporation, the Osaka-founded sporting goods maker established in 1906. Headquartered in Peachtree Corners, Georgia, it designs, manufactures and distributes running, baseball, fastpitch and slow-pitch softball, golf, volleyball, and tennis equipment, footwear and apparel for the U.S. market. Known for its RunBird logo and signature Wave and Enerzy cushioning technologies, Mizuno serves everyday athletes, collegiate and professional teams, and specialty retailers across the region.
Tim Rumer
Tim Rumer is a sporting goods executive who serves as Senior Vice President of Business Development at Mizuno USA in Peachtree Corners, Georgia. A left-handed pitcher drafted by the New York Yankees out of Duke University in 1990, he spent eight professional seasons in the minors and reached Triple-A before trading the mound for the boardroom. At Mizuno he climbed from business unit manager to product and lifecycle leadership - including a stint running ball glove development - and now steers partnerships and growth across the company's team sports and golf divisions.
Wilson Sporting Goods Co.
Wilson Sporting Goods is a Chicago-based, 113-year-old maker of sports equipment and apparel and one of the most recognized names in athletics. Owned by Amer Sports, Wilson designs and manufactures gear across tennis, basketball, football, baseball, golf, pickleball, padel, volleyball and soft goods, supplying professional leagues, elite athletes and everyday players. It is the official ball supplier to the NBA and NFL, backs a portfolio that includes Louisville Slugger, DeMarini and EvoShield, and has spent recent years pushing into apparel, direct-to-consumer retail and manufacturing innovation such as its 3D-printed Airless basketball.
Perry Weather
Perry Weather is a Dallas-based weather safety and operations platform that pairs on-site weather stations with software to help organizations monitor lightning, heat stress (WBGT), and air quality, automate their safety policies, and keep a compliance-ready record. Founded in 2013 by meteorologist Colin Perry, it serves thousands of schools, cities, golf courses, athletic programs, and industrial firms - including work with the PGA of America - and has delivered tens of millions of real-time safety alerts.
Mustard
Mustard is a Los Angeles-area sports-tech company that puts elite athletic coaching in an app. Using AI and computer vision, it analyzes ordinary smartphone video of a pitcher's throwing motion or a golfer's swing, compares it against a decades-deep biomechanics database, and returns a report card plus a personalized drill plan. Co-founded by legendary throwing coach Dr. Tom House, the company aims to make world-class, data-driven coaching accessible to any athlete, starting with baseball and golf and expanding toward other sports.
Skillest
Skillest is a mobile marketplace that connects students with elite sports coaches - primarily in golf - for one-to-one remote video lessons. Players film a swing, coaches reply with annotated video, voice notes and drills, and improvement happens without a tee-time.
Jim Daily
Jim Daily is the CEO of OpenWeb, the audience-engagement and conversation platform for digital publishers. He took the top job on April 1, 2025, arriving after almost a decade scaling Teads in North America from a standing start to roughly $275 million in annual revenue, and after a detour founding LinksDAO, a golf-community venture he grew to $11 million in ten months. A Boston University hospitality grad turned adtech operator, Daily is the rare media leader who pairs go-to-market discipline with a near-religious belief that healthier online conversation is good business and good for society.
The Bay Club Company
The Bay Club Company is a membership-based active lifestyle and hospitality company headquartered in San Francisco. Founded in 1977 with the nation's first co-ed fitness club, it now operates a growing collection of resort-inspired clubs organized into regional campuses across the West Coast - the Bay Area, Los Angeles, San Diego, and the Pacific Northwest. Built on four points of focus - fitness, sports, family, and hospitality - the company serves a community of 135,000-plus members with tennis, swimming, squash, golf, pickleball, group exercise, family programs, dining, and spa services. Backed by KKR, Bay Club is in an aggressive expansion phase, acquiring regional operators to scale toward 50-plus clubs and over 200,000 members.
Nels Stromborg
Nels Stromborg is a VP Transformational Leader for Media and Entertainment at Adobe, based in Chicago, with 20+ years of digital media sales experience. Known for scaling sales organizations and consistently outperforming targets - hitting 300% of goal in FY2020 and winning Adobe's North American and Media & Entertainment Seller of the Year award - he has built a career arc from floor trader at the Chicago Board Options Exchange to driving Adobe's most strategic entertainment partnerships. He has held senior sales leadership roles at Undertone, Retale, and AOL before joining Adobe.
TeachMe.To
TeachMe.To is a marketplace for booking in-person private lessons - golf, tennis, pickleball, music, yoga, and more - that matches beginners with vetted local coaches and handles scheduling, payments, and reviews in one place.
Brian Park
Brian Park is the CEO of Skillest, the world's leading remote sports coaching marketplace that connects athletes with elite coaches through asynchronous video analysis. A Silicon Valley veteran who was the 95th employee at Yahoo and co-founder of Yahoo! Messenger, Park pivoted to sports tech to democratize access to elite coaching - putting a world-class coach in every athlete's pocket. Under his leadership, Skillest has grown to 600+ coaches, 200,000+ golfers, and secured partnerships with Stephen Curry's UNDERRATED Golf and Arccos Golf, becoming the digital coaching standard in golf and expanding across multiple sports.