TFRRS Performance Profile
Career Accolades
- Pac-12 XC Freshman of the Year
- Two-time NCAA West Region XC team champions (2022, 2023)
- All-West Region XC (2022)
- Three-time USTFCCCA All-Academic (XC 2022; T&F 2023, 2024)
- Four-time Pac-12 Academic Honor Roll (XC 2023; T&F winter 2024; spring 2023, 2024)
As a Sophomore (2023-24)
Outdoors
- Advanced to the NCAA West Prelims in the 3,000 steeplechase
- Won the steeplechase at the Big Meet
- Her Big Meet time of 10:22.84 was a personal best
- The time placed her at No. 10 on Stanford's all-time list
- USTFCCCA All-Academic
- Pac-12 Academic Honor Roll
Indoors
- Ran 3,000 season best of 9:15.40 at Husky Classic
- Ran season mile best of 4:43.71 at Terrier Classic
- Pac-12 Academic Honor Roll
Cross Country * West Region Champions
- Won the USF Invitational for the second consecutive season
- Matched best Pac-12 placing, in 17th
- Pac-12 Academic Honor Roll
As a Freshman (2022-23)
Outdoors
- Won the Big Meet steeplechase in 10:26.02
- The time placed her No. 10 on Stanford's all-time list and No. 5 among freshmen
- Advanced to the NCAA West Prelims in the 5,000
- Reached liftime best in the 5,000 with 16:03.66 to win the third section of the Bryan Clay Invitational
- USTFCCCA All-Academic
- Pac-12 Academic Honor Roll
Indoors
- Won the Windy City Invitational 3,000 in 9:14.47, placing her No. 4 on Stanford's freshmen list
- Season-best in the mile was 4:40.31 at the Ken Shannon Invitational, good for No. 2 all-time among Stanford freshmen
Cross Country * West Region Champions
- Pac-12 Women's Freshman of the Year
- Won collegiate debut, at the USF Invitational
- All-West Region
- Placed 21st at NCAA West Region Championships
- Placed 24th at Pac-12 Championships, finishing as the top freshman in the conference
- Stanford's No. 4 runner at NCAA Championships
- USTFCCCA All-Academic
Prior to Stanford
- Four-time Gatorade Colorado Girls' Player of the Year – three times in cross country and once in track and field
- Won 10 Colorado state titles – seven on the track and three in cross country
- Joined with three other Stanford recruits to run the fastest 4xMile in high school and U.S. U20 history
- Riley holds the record for the fastest high school 1,600 in the state of Colorado (4:44.13)
- Fourth in the mile at the 2022 Brooks PR Invitational with a PB of 4:38.21
- The time was No. 6 among high schoolers in the nation in 2022
- Fifth at the 2021 Eastbay Cross Country Nationals
- 2021 Eastbay Midwest Region cross country champion
- Holds Colorado state records in the 1,600 (4:44.13) and 3,200 (10:06.23)
- Second in the Brooks PR mile (4:40.66) as a junior, the time placing her No. 6 in the nation for 2021.
- Triple state 5A track champion in 2021 (800, 1,600, and 3,200) and 2022 (1,600, 3,200, 4x800) in 2022, Led Cherry Creek to the state 5A track title in 2022
- Won three state 5A cross country championships and earned three state 5A Runner of the Year honors
- Third at the 2022 New Balance Indoors Nationals mile (4:40.93)
- Second in the 2022 Millrose Games high school mile (4:47.22)
- Fourth in the two-mile at the 2022 Nike Outdoor Nationals (10:06.75)
- Regarded by many as the greatest female high school distance runner in Colorado history
Personal
- Parents are Andrew and Stephanie Stewart
- Has two siblings, Tanner and Carter
- A high-level player in club volleyball and soccer
Career Results
| Year | Season (Meets) | Event | Season Best | Conf. | Region | NCAA |
| 2023-24 | Outdoors (7) | Steeple | 10:22.84 | 5 (10:59.48) | 31 (10:46.22) | -- |
| 1,500 | 4:23.74 | -- | -- | -- | ||
| 5,000 | 16:22.33 | -- | -- | -- | ||
| Indoors (5) | Mile | 4:43.71 | -- | -- | -- | |
| 3,000 | 9:15.40 | -- | -- | -- | ||
| 5,000 | 16:24.66 | -- | -- | -- | ||
| Cross Country (6) | 6K | 19:53.6 | 17 (19:53.6) | 56 (20:40.8) | 128 (20:51.9) | |
| 5K | 16:47.7 | -- | -- | -- | ||
| 2022-23 | Outdoors (6) | 5,000 | 16:03.66 | 17 (16:45.53) | 24 (16:09.40) | -- |
| Steeple | 10:26.02 | -- | -- | -- | ||
| 1,500 | 4:21.76 | -- | -- | -- | ||
| Indoors (4) | 3,000 | 9:14.47 | -- | -- | -- | |
| Mile | 4:40.31 | -- | -- | -- | ||
| DMR | 11:10.89 | -- | -- | -- | ||
| Cross Country (6) | 6K | 19:47.2 | 24 (19:58.5) | 21 (19:47.2) | 121 (20:45.1) |