TFRRS Performance Profile
Career Accolades
- NCAA West Region XC team champions (2023)
- Pac-12 XC team champions (2023)
- U.S. under-20 XC champion (2023)
- USTFCCCA All-Academic (T&F 2024)
As a Freshman (2023-24)
Outdoors
- Advanced to the NCAA West Prelims in the 1,500 and 5,000
- Highest placing American true freshman in the NCAA West Prelims 1,500
- Ran a season best 3:41.84 at the Prelims to tie for No. 5 on Stanford's all-time frosh list
- Ran personal best 13:46.81 for 5,000 at the Stanford Invitational
- USTFCCCA All-Academic
Indoors
- Set the Stanford freshmen 3,000 record of 7:54.38
- The time came during a second-place finish at the Ken Shannon Invitational
- Ran 4:02.57 mile at Ken Shannon for No. 5 on school frosh list
- Ran third leg on distance medley relay team that ran 9:27.06 for the No. 2 time in school history
Cross Country * Pac-12 Champions * West Region Champions - Made collegiate debut at the Virginia Invitational, placing 46th
- Stanford's No. 4 runner at NCAA West Regionals, placing 26th
- Stanford's No. 6 runner at NCAA Championships
International/National Competition
- 16th at World Under-20 Cross Country Championships in Australia
- U.S. U20 champ in 2023
Prior to Stanford
- Ran lifetime 1,500 best of 3:39.39 at the 2023 Bryan Clay Invitational
- The time placed him No. 7 on the all-time high school list with the No. 7 performance ever
- It was second-fastest among high school runners in 2023
- Leo and twin Lex were part of the Newbury Park cross country team that won the 2022 Nike Cross Nationals
- In 2022, 11th at the Nike Cross Nationals, second in the California Division II race, and second in the CIF-Southern Section Division II final
- At the 2021 Woodbridge Invite in Irvine, Leo clocked 13:38.1, the fastest three-mile high school cross country time in history
- At the 2021 RunningLane Cross Country Nationals, Leo was second in 14:05.1, the second-fastest cross-country 5K of all-time
- Second in the mile at the Nike Outdoor Nationals in 4:02.58, the No. 8 time among high schoolers in 2023
- Ran his mile PB of 4:00.77 at the 2022 Azusa Pacific Meet of Champions Distance Classic
Personal
- Parents are Lynne and Andrew Young
- Brothers are Nico, a two-time NCAA champion and 2024 Olympian in the 10,000, and twin Lex, a Stanford teammate
- Leo and Lex have their own YouTube channel, "L&L", where they share their running careers and seek to inspire young runners
- Board member of Doctors of the World, an international humanitarian organization which seeks to provide emergency and long-term medical care to the world's most vulnerable people
Career Results
| Year | Season (Meets) | Event | Season Best | Conf. | Region | NCAA |
| 2023-24 | Outdoors (6) | 1,500 | 3:41.84 | 9 (3:57.13) | 16 (3:41.84) | -- |
| 5,000 | 13:46.81 | 13 (14:50.40) | 42 (15:03.37) | -- | ||
| 3,000 | 8:50.86 | -- | -- | -- | ||
| 800 | 1:53.97 | -- | -- | -- | ||
| Indoors (6) | Mile | 4:02.57 | -- | -- | -- | |
| 3,000 | 7:54.38 | -- | -- | -- | ||
| 5,000 | 13:49.71 | -- | -- | -- | ||
| 1,000 | 2:25.75 | -- | -- | -- | ||
| DMR | 9:27.06 | -- | -- | -- | ||
| Cross Country (3) | 8K | 23:58.8 | -- | -- | -- | |
| 10K | 31:31.6 | -- | 26 (29:49.1) | 185 (31:31.6) |