# David Callahan

ထိပ်တန်း Podcast တခုကိုဖြစ်စဉ်များ
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The Trail Ahead: Consumer & Industry Trends Shaping Trail Running (TRE Live Panel)

This is a recording from a live panel conducted at The Running Event - the running industry's largest trade show. One of the big trends in running is the growth of trail running as a sub-category, something that is felt palpably at TRE. To contextualize this growth, I'm joined by two fantastic gue…

TOP TEN BOOKS OF 2025

Register your feedback here. Always good to hear from you! Forgive the rough cut! I am having no end of trouble on my end -- the least effect of which is, I cannot put a standard podcast out. But I did make a recording for you! Hopefully my technical problems will be worked out by next Tuesday. Als…

David Callahan: 30+ Years as a High sSchool Basketball Official

 In this episode of the Loveland All Sports Podcast, Josh sits down with longtime basketball official Dave Callahan as he reflects on nearly three decades of refereeing high school hoops in Cincinnati. From behind-the-scenes insights on officiating to memorable games, tough calls, and the realities…

David Callahan: 30+ Years as a High sSchool Basketball Official

 In this episode of the Loveland All Sports Podcast, Josh sits down with longtime basketball official Dave Callahan as he reflects on nearly three decades of refereeing high school hoops in Cincinnati. From behind-the-scenes insights on officiating to memorable games, tough calls, and the realities…

141: Valerie Anastasio on the K-Shaped Economy and the Ultra-Wealthy Donor

Fundraising consultant Valerie Anastasio explains the K-shaped economy, why the ultra-wealthy require discipline rather than optimism from researchers, and how to focus on the 10% of high-net-worth prospects who actually align with your mission—instead of chasing every billionaire. Connect with …

141: Valerie Anastasio on the K-Shaped Economy and the Ultra-Wealthy Donor

Fundraising consultant Valerie Anastasio explains the K-shaped economy, why the ultra-wealthy require discipline rather than optimism from researchers, and how to focus on the 10% of high-net-worth prospects who actually align with your mission—instead of chasing every billionaire. Connect with …

S2 Ep5 - David Callahan

Today on The Grit Files, we sit down with David Callahan, Co-CEO of UltraSignup and one of the people helping shape the future of trail and ultrarunning.But David's story starts long before UltraSignup.A former attorney and endurance athlete, David spent years chasing achievement—including completi…

43. David Callahan

David Callahan, co-CEO of Ultra Sign Up, joins Evan and Danny to talk about how he and his partner Jay stumbled into acquiring the platform in 2020, closing the deal at separate picnic tables with masks on while the entire industry was shut down. He breaks down why vibe-coded competitors can build …

Hiding in the Spotlight Audiobook by Karen Booth

Listen to full audiobook for free : https://litupbook.com/free Title: Hiding in the SpotlightCategories: Contemporary, Female Protagonist, Fiction, RomanceAuthor: Karen BoothNarrator: Natasha SoudekPublisher: Audible StudiosRelease date: 10-07-2016Language: EnglishSummary:You were my first love. I …

The Trends Reshaping Trail Running Participation, Culture, & the Marketplace

Today we continue rolling out sessions from the 2026 edition of TrailCon. We're sharing a panel discussion about the state of the trail industry and marketplace featuring three great speakers: David Callahan - Co-CEO of UltraSignup Stephen Holmberg - Founder/CEO Insight Accelerator Jenny Ka…