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Isla Terrill
Class of 2028 · Monrovia, CA
High school track and field athlete profile
National rank · #204
CA rank · #13
4 stars ★★★★☆
Main · 800m
Secondary · Mile
Athlete overview
Graduation year
2028
Hometown
Monrovia, CA
School / team
Monrovia (SS)
Primary event
800m
Secondary event
Mile
Results tracked
69
Star rating
4
TRAX-Score
86.367
Top-End
86.1
Consistency
85.7
Versatility
85.2
Big Meet
91.8
Personal records
Best scored mark in each event across the athlete's complete performance history.
8 events
200m
PR
28.22
Outdoor · 2026
Event Score 62.9
400m
PR
57.76
Outdoor · 2026
Event Score 84.8
800m
PR
2:09.99
Outdoor · 2026
Event Score 89.1
1500m
PR
4:29.86
Outdoor · 2026
Event Score 87.8
1600m
PR
4:47.72
Outdoor · 2026
Event Score 88.3
Mile
PR
4:50.50
Outdoor · 2026
Event Score 87.6
3200m
PR
11:24.04
Outdoor · 2026
Event Score 69.8
5000m
PR
18:00.90
Cross Country · 2025
Event Score 73.9
Performance history
69 results shown
All events
All years
| Event | Mark | Event Score | Meet | Year | Season | Place |
|---|---|---|---|---|---|---|
| 800m | 2:09.99 | 89.1 | CIF Southern Section Masters | 2026 | Outdoor | 8 |
| 1600m | 4:47.72 | 88.3 | CIF State Track And Field Championships | 2026 | Outdoor | 5 |
| 1500m | 4:29.86 | 87.8 | Nike Outdoor Nationals | 2026 | Outdoor | 14 |
| 1600m | 4:48.70 | 87.7 | CIF State Track And Field Championships | 2026 | Outdoor | 7 |
| 1600m | 4:48.68 | 87.7 | 66th Annual Mt. SAC Relays | 2026 | Outdoor | 2 |
| Mile | 4:50.50 | 87.6 | 66th Annual Mt. SAC Relays | 2026 | Outdoor | 2 |
| 800m | 2:10.93 | 87.5 | CIF Southern Section Division Finals | 2026 | Outdoor | 4 |
| 800m | 2:10.93 | 87.5 | CIF Southern Section Division Finals | 2026 | Outdoor | 1 |
| 800m | 2:10.93 | 87.5 | CIF Southern Section Division 3 Prelims | 2026 | Outdoor | 1 |
| 800m | 2:10.97 | 87.5 | 66th Annual Mt. SAC Relays | 2026 | Outdoor | 7 |
| 800m | 2:10.99 | 87.4 | Nike Outdoor Nationals | 2026 | Outdoor | 27 |
| 1600m | 4:49.53 | 87.1 | CIF Southern Section Masters | 2026 | Outdoor | 5 |
| 800m | 2:11.30 | 86.9 | The TEN | 2026 | Outdoor | 6 |
| 1600m | 4:49.81 | 86.9 | Nike Outdoor Nationals | 2026 | Outdoor | 24 |
| Mile | 4:51.91 | 86.7 | Nike Outdoor Nationals | 2026 | Outdoor | 25 |
| 800m | 2:11.69 | 86.3 | Arcadia Invitational | 2026 | Outdoor | 8 |
| 1600m | 4:50.79 | 86.3 | CIF Southern Section Division Finals | 2026 | Outdoor | 3 |
| 1600m | 4:52.44 | 85.1 | Hi-Racer Meet of Champions | 2026 | Outdoor | 1 |
| 800m | 2:12.50 | 85 | CIF Southern Section Division 3 Prelims | 2025 | Outdoor | 2 |
| 400m | 57.76 | 84.8 | Temple City @ Monrovia | 2026 | Outdoor | 1 |
| 400m | 57.76 | 84.8 | Monrovia vs. Temple City Dual | 2026 | Outdoor | 1 |
| 800m | 2:12.63 | 84.8 | CIF Southern Section Masters | 2025 | Outdoor | 6 |
| 1600m | 4:53.05 | 84.7 | Arcadia Invitational | 2026 | Outdoor | 1 |
| Mile | 4:54.91 | 84.7 | Arcadia Invitational | 2026 | Outdoor | 1 |
| 1600m | 4:53.41 | 84.5 | 65th Annual Mt. SAC Relays | 2025 | Outdoor | 9 |
| Mile | 4:55.12 | 84.5 | 65th Annual Mt. SAC Relays | 2025 | Outdoor | 9 |
| 1500m | 4:35.29 | 83.9 | Arcadia Invitational | 2026 | Outdoor | 2 |
| 1600m | 4:54.80 | 83.6 | Rio Hondo League Finals | 2025 | Outdoor | 3 |
| 800m | 2:13.48 | 83.4 | 65th Annual Mt. SAC Relays | 2025 | Outdoor | 5 |
| 800m | 2:13.60 | 83.2 | Arcadia Invitational | 2025 | Outdoor | 10 |
| 1600m | 4:55.33 | 83.2 | 2025 CIF Southern Section Division Finals | 2025 | Outdoor | 3 |
| 1600m | 4:56.22 | 82.6 | CIF Southern Section Division Finals | 2026 | Outdoor | 2 |
| 1600m | 4:56.22 | 82.6 | CIF Southern Section Division 3 Prelims | 2026 | Outdoor | 4 |
| 800m | 2:14.52 | 81.7 | 2025 CIF Southern Section Division Finals | 2025 | Outdoor | 4 |
| 1600m | 4:58.06 | 81.4 | Arcadia Invitational | 2025 | Outdoor | 3 |
| Mile | 4:59.86 | 81.4 | Arcadia Invitational | 2025 | Outdoor | 13 |
| 800m | 2:15.03 | 80.9 | South Pasadena vs San Marino, Blair & Monrovia | 2025 | Outdoor | 1 |
| 1600m | 5:00.08 | 80.1 | Covina Invitational | 2025 | Outdoor | 1 |
| 1500m | 4:41.06 | 79.8 | Arcadia Invitational | 2025 | Outdoor | 3 |
| 1600m | 5:01.53 | 79.2 | CIF Southern Section Division 3 Prelims | 2025 | Outdoor | 4 |
| 1600m | 5:01.76 | 79 | Adidas Meet of Champions HS Distance Classic | 2025 | Outdoor | 5 |
| 1600m | 5:01.76 | 79 | Meet of Champions | 2025 | Outdoor | 5 |
| 800m | 2:16.45 | 78.7 | Arroyo Multi-Dual | 2026 | Outdoor | 1 |
| 800m | 2:17.37 | 77.3 | Rio Hondo League Finals | 2026 | Outdoor | 1 |
| 800m | 2:17.37 | 77.3 | Rio Hondo League (Prelim 4/28 & Finals 5/1) @ South Pas. | 2026 | Outdoor | 1 |
| 1600m | 5:04.69 | 77.1 | Michael Knowles Monrovia Wildcat Invitational | 2026 | Outdoor | 2 |
| 1600m | 5:06.89 | 75.7 | Rio Hondo/Pacific League Challenge | 2026 | Outdoor | 2 |
| 800m | 2:18.55 | 75.5 | Rio Hondo League Finals | 2025 | Outdoor | 1 |
| 1600m | 5:07.19 | 75.5 | Monrovia Wildcat Invitational Track Meet. | 2025 | Outdoor | 2 |
| 5000m | 18:00.90 | 73.9 | CIF State XC Championships | 2025 | Cross Country | 14 |
| 5000m | 18:00.90 | 73.9 | CIF State XC Championships | 2025 | Cross Country | 79 |
| 1600m | 5:10.06 | 73.7 | Rio Hondo/Pacific League Challenge | 2025 | Outdoor | 6 |
| 800m | 2:19.88 | 73.4 | Rio Hondo/Pacific League Challenge | 2025 | Outdoor | 2 |
| 800m | 2:20.40 | 72.6 | La Canada League Meet (SM, Blair, Monrovia) | 2026 | Outdoor | 1 |
| 3200m | 11:24.04 | 69.8 | Arcadia (Mega) Mini Meet | 2026 | Outdoor | 1 |
| 800m | 2:22.35 | 69.7 | Rio Hondo League Finals | 2026 | Outdoor | 1 |
| 800m | 2:22.35 | 69.7 | Rio Hondo League Prelims | 2026 | Outdoor | 1 |
| 800m | 2:22.35 | 69.7 | Rio Hondo League (Prelim 4/28 & Finals 5/1) @ South Pas. | 2026 | Outdoor | 1 |
| 5000m | 18:26.70 | 69.7 | ASICS Clovis XC Invitational | 2025 | Cross Country | 25 |
| 1600m | 5:18.50 | 68.5 | Rio Hondo League Finals | 2026 | Outdoor | 1 |
| 1600m | 5:18.50 | 68.5 | Rio Hondo League (Prelim 4/28 & Finals 5/1) @ South Pas. | 2026 | Outdoor | 1 |
| 5000m | 18:46.40 | 66.6 | ASICS Clovis XC Invitational | 2024 | Cross Country | 1 |
| 1600m | 5:22.59 | 66 | Monrovia VS. La Canada & Blair DBL.Duel. | 2025 | Outdoor | 2 |
| 3200m | 11:49.55 | 63.2 | Crescenta Valley Distance Invite | 2025 | Outdoor | 6 |
| 200m | 28.22 | 62.9 | Arroyo Multi-Dual | 2026 | Outdoor | 3 |
| 1600m | 5:29.37 | 62 | South Pas, San Marino @ Monrovia (Double Dual Meet) | 2026 | Outdoor | 1 |
| 1600m | 5:32.27 | 60.3 | Temple City @ Monrovia | 2026 | Outdoor | 1 |
| 1600m | 5:32.27 | 60.3 | Monrovia vs. Temple City Dual | 2026 | Outdoor | 1 |
| 5000m | 19:43.00 | 57.9 | Foot Locker West Regional | 2024 | Cross Country | 44 |
