Jeff Idelson (@Jeff_Idelson) header
Jeff Idelson (@Jeff_Idelson) profile picture

Co-Founder, Grassroots Baseball. 37 years in the game overall: @grassrootsbb (2019 - ); @baseballhall (1994-2019, 2021); @yankees (1989-93); @redsox (1986-88).

San Francisco, CA
Joined November 2009
So glad to hear my longtime friend Bill White weigh in on his NY Giants roommate, Willie Mays.
Did you know that Mays and Bill White were roomates when White broke into the majors in 1956 with the Giants? During that time, Willie helped guide him through challenges he faced, turning his own experiences into valuable lessons for the next generation. #WillieMays #BillWhite
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Does it get any better than this? An amazing catch by the Say Hey kid. @SayHeyFdn
With Game Four of the 2026 World Series tonight, we look back at the Giants’ 1954 WS victory. New York swept Cleveland while Mays went 4-for-14 (.286) with four runs scored, a double, and three RBI. Most famously, Willie made “The Catch” in Game One! Source: UNUM Ken Burns
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Jeff Idelson retweeted
Did you know that Mike Trout (2012-13) and Willie (1957-58) stand alone as the only players in Major League history with multiple seasons of at least a .320 batting average, 25 home runs and 30 stolen bases? Source: ‘24 Amazing Willie Mays Facts’ by Paul Casella #Mays #Trout
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Jeff Idelson retweeted
Being coachable means staying open to learning, embracing feedback, and always looking for ways to get better. Even the greatest players know there’s always more to learn. Willie's legacy reminds us that greatness isn’t just about talent — it’s about the willingness to grow.
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Jeff Idelson retweeted
Stories worth knowing. People making a difference. A future of sports worth getting excited about. Grassroots Baseball and See Her Be Her are coming together to share the stories, athletes & changemakers shaping the game. Sign up: seeherbeher.org/ 📸: @jeanfruth
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Wishing a very happy 53rd to 51, a remarkable ballplayer and a true renaissance man. May you enjoy the health, happiness, and longevity symbolized by the crane and the turtle. 鶴は千年、亀は万年 🎂 🎉 ⚾️ 🐢
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Jeff Idelson retweeted
Willie Mays gave so much of himself to baseball that saying goodbye brought him to tears. His words are a reminder of how deeply he loved the game—and how much it meant to spend his life playing it. 🧡🖤 #SayHeyFoundation #WillieSays #BaseballLegacy #YouthOpportunity
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Jeff Idelson retweeted
Kelsie Whitmore didn’t wait for someone to tell her she belonged. She believed she did. She kept playing baseball, stayed true to herself, and kept chasing the game she loved. SEE HER BE HER Directed and Produced by @jeanfruth Produced by @Jeff_Idelson 🎥: Martin Berthiaume
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Jeff Idelson retweeted
A milestone worth celebrating. In 2026, the Golden State Valkyries, who are playing in the WNBA Finals, became the first women’s professional sports team to surpass $100 million in annual revenue, a powerful sign of the growth and momentum behind women’s sports. #SeeHerBeHer
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Jeff Idelson retweeted
Three was a magic number for Willie. Mays is one of 33 members of the 3,000-hit club, but he's the only player in MLB history with at least 3,000 hits, a .300 average, 300 home runs and 300 stolen bases. Source: ‘24 Amazing Willie Mays Facts’ by Paul Casella #SayHeyFoundation
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Jeff Idelson retweeted
Happy International Day of the Girl! There’s power in a girl seeing what’s possible. Here’s to girls dreaming a little bigger, playing a little harder & continuing to push the goal line forward. The future of sports is brighter when every girl has the chance to see herself in it.
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Jeff Idelson retweeted
What a first season of professional baseball for Ashton Lansdell. The Los Angeles Queens captain hit .477 with 4 home runs, 14 RBI and 21 hits during the regular season, putting together one of the league’s best performances at the plate. 📸: @jeanfruth #SeeHerBeHer #WPBL
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Jeff Idelson retweeted
Willie had at least one hit in 15 All-Star Games, and Stan Musial (14) is the only other player with a hit in more than 11 All-Star Games. Mays' 23 overall hits are the most in All-Star Game history! Source: ‘24 Amazing Willie Mays Facts’ by Paul Casella, MLB.com
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Jeff Idelson retweeted
Four teams, four new markets, and a whole new chapter for the PWHL. Las Vegas rounds out our expansion series as we spotlight the newest teams joining the league for the 2026-27 season. Here’s your PWHL Las Vegas 101… #PWHL #LasVegas #PWHLLasVegas #PWHLExpansion
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Jeff Idelson retweeted
We’re extremely grateful to Dr. Phil Saddler for spending time with our Willie Mays Scholars recently and to everyone who supports the program, which provides academic scholarships to underrepresented youth in San Francisco. Visit the link in our bio to learn more!
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Jeff Idelson retweeted
The first-ever PWHL All-Star game is coming to Toronto! Where: Scotiabank Arena When: March 7, 2027 What: 4 teams. 3-on-3. The best of the best. A brand-new chapter for the PWHL. #SeeHerBeHer #PWHL #AllStarGame
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Jeff Idelson retweeted
She deserves to see what’s possible. To see women playing the game she loves.
To see them competing at the highest level.
To see a future she can see herself in. SEE HER BE HER  Directed and Produced by @jeanfruth Produced by @Jeff_Idelson   🎥: Martin Berthiaume
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Jeff Idelson retweeted
Willie’s greatness extended far beyond his ability on the field. He generously shared his knowledge with teammates and younger players, helping others find success — that willingness to lift up those around him remains an important part of the Say Hey Kid’s enduring legacy.
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