The NCAA men’s basketball tournament was created in 1939 by college coaches through the National Association of Basketball Coaches, with Kansas coach Phog Allen as the key visionary and Ohio State coach Harold Olsen as a major organizer who helped launch the first event.

Here’s the quick scoop, in article style.

Who Made the NCAA Basketball Tournament?

The Big Idea: Coaches, Not TV Executives

When people ask “who made the NCAA basketball tournament?” they’re really asking who first dreamed up what we now call March Madness. The short answer: a group of college coaches, led by Phog Allen and strongly pushed forward by Harold Olsen , turned the idea into reality in 1939.

At the time, the National Invitation Tournament (NIT) in New York was considered the more prestigious event, so this new NCAA tournament started as the underdog.

Key People Behind March Madness

  • Phog Allen (Kansas coach) – Often credited as the “brainchild” behind the NCAA tournament; he lobbied hard for a true national championship event for college basketball.
  • Harold Olsen (Ohio State coach) – As a leading coach and committee figure, he worked with others to organize the first NCAA tournament in March 1939 and get teams and venues lined up.
  • National Association of Basketball Coaches (NABC) – The coaches’ organization that actually created and backed the new tournament under the NCAA umbrella.

Think of it as: Phog Allen pushed the idea, Harold Olsen helped turn it into a concrete bracket, and the NABC gave it structure and backing.

What That First Tournament Looked Like (1939)

The first NCAA men’s basketball tournament in 1939 was tiny compared with today’s 68‑team field.

  • Only 8 teams participated.
  • Games were split regionally: teams played in places like Philadelphia and San Francisco, with the championship in Evanston, Illinois.
  • Oregon, coached by Howard Hobson, won the very first title by beating Ohio State 46–33.

At the time, newspapers and many fans still treated the NIT as the bigger deal, so nobody imagined this new bracket would one day dominate March.

How It Became “March Madness”

Over the decades, TV exposure, expansion of the field, and the drama of upsets slowly turned this coaches’ experiment into a cultural phenomenon.

  • 1940s–1950s: Interest and size grew, and the tournament began to gain national traction.
  • 1951: The field expanded to 16 teams.
  • 1960s–1970s: Television coverage and dynasties like John Wooden’s UCLA squads made the event must‑watch viewing.

So when you watch brackets bust in March now, you’re seeing the result of an idea that started with a handful of coaches who wanted a real national playoff, not just a New York–centric tournament.

Simple Answer Recap

  • The NCAA men’s basketball tournament was created in 1939 by the National Association of Basketball Coaches under the NCAA.
  • Kansas coach Phog Allen is widely cited as the main visionary behind the concept.
  • Ohio State coach Harold Olsen played a central role in organizing and launching the first tournament.

TL;DR:
A group of college coaches, led by Phog Allen and operationally driven by Harold Olsen and the National Association of Basketball Coaches, “made” the NCAA basketball tournament in 1939 and set the stage for what we now call March Madness.

Information gathered from public forums or data available on the internet and portrayed here.