Jim Ryun of Wichita, Kansas, became the first high school boy to run a sub-4:00 mile, breaking the barrier in 1964. For the next 51 years, only four additional high schoolers added their names to the prestigious shortlist. But since 2015—whether because of better coaches, improved shoe technology, or the rise of online training resources—the list has more than tripled.

At New Balance Nationals Outdoor on June 15, Drew Griffith and Zach Hillhouse dipped under the 4:00 barrier in the championship section of the mile. Griffith, who’s from Pennsylvania, won the race in 3:59.00—his second sub-4 performance after running 3:57.72 at the Hoka Festival of Miles on May 30. Hillhouse of Utah finished close behind in 3:59.62, over a 6-second personal best. Next year, Griffith will attend Notre Dame, and Hillhouse is signed to compete for BYU.

Multiple names on the high school sub-4:00 list went on to accomplish big things in their professional careers. Ryun broke multiple world records and earned an Olympic medal in the 1500 meters. Alan Webb of Reston, Virginia, owned the American mile record for 16 years and still has the high school mile record. Grant Fisher of Grand Blanc, Michigan, has broken American records in the outdoor 10,000-meters and 5,000-meters. Will any of the recent sub-4:00 performers reach similar heights? Only time will tell.

List of High School Sub-4:00 Miles

Jim Ryun — 3:59.00; June 5, 1964

Jim Ryun — 3:58.30; May 15, 1965

Jim Ryun — 3:58.10; May 29, 1965

Jim Ryun — 3:56.80; June 4, 1965

Jim Ryun — 3:55.30; June 27, 1965

Tim Danielson — 3:59.40;June 11, 1966

Marty Liquori — 3:59.80; June 23, 1967

Alan Webb — 3:59.86i; January 20, 2001

Alan Webb — 3:53.43; May 27, 2001

Lukas Verzbicas — 3:59.71; June 11, 2011

Matthew Maton — 3:59.38; May 8, 2015

Grant Fisher — 3:59.38; June 4, 2015

Drew Hunter — 3:58.25i; February 6, 2016

Drew Hunter — 3:57.81i; February 20, 2016

Michael Slagowski — 3:59.53; April 29, 2016

Drew Hunter — 3:58.86; May 28, 2016

Michael Slagowski — 3:59.78; May 28, 2016

Reed Brown — 3:59.30; June 1, 2017

Leo Daschbach — 3:59.54; May 23, 2020

Hobbs Kessler — 3:57.66i; February 7, 2021

Colin Sahlman — 3:58.81i; February 5, 2022

Gary Martin — 3:57.98; May 14, 2022

Colin Sahlman — 3:56.24; May 28, 2022

Gary Martin — 3:57.89; June 2, 2022

Connor Burns — 3:58.83; June 2, 2022

Rheinhardt Harrison — 3:59.33; June 3, 2022

Simeon Birnbaum — 3:59.51; June 15, 2022

Connor Burns — 3:59.11i; February 26, 2023

Rocky Hansen — 3:59.56; April 30, 2023

Simeon Birnbaum — 3:57.53; June 1, 2023

Rocky Hansen — 3:58.23; June 1, 2023

Tinoda Matsatsa — 3:58.70; June 1, 2023

Jackson Heidesch — 3:59.08; June 1, 2023

JoJo Jourdon — 3:59.87i; February 3, 2024

Drew Griffith — 3:57.72; May 30, 2024

Drew Griffith — 3:59.00; June 15, 2024

Zach Hillhouse — 3:59.62; June 15, 2024