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Liam O'Sullivan
Class of 2028 · Greenwich, CT
High school track and field athlete profile
National rank · #10905
CT rank · #238
0 stars ☆☆☆☆☆
Main · Mile
Secondary · 2 Mile
Athlete overview
Graduation year
2028
Hometown
Greenwich, CT
School / team
Greenwich High School
Primary event
Mile
Secondary event
2 Mile
Results tracked
29
Star rating
0
TRAX-Score
50.782
Top-End
56.4
Consistency
47.0
Versatility
52.3
Big Meet
36.6
Personal records
Best scored mark in each event across the athlete's complete performance history.
7 events
300m
PR
48.74
Indoor · 2026
Event Score 5.4
600m
PR
1:53.71
Indoor · 2026
Event Score 1.6
800m
PR
2:22.72
Outdoor · 2026
Event Score 20.5
1600m
PR
4:38.35
Outdoor · 2025
Event Score 53.9
3000m
PR
12:16.00
Cross Country · 2024
Event Score -1.2
3200m
PR
11:00.41
Outdoor · 2026
Event Score 30.6
5000m
PR
18:26.00
Cross Country · 2025
Event Score 21.0
Performance history
29 results shown
All events
All years
| Event | Mark | Event Score | Meet | Year | Season | Place |
|---|---|---|---|---|---|---|
| 1600m | 4:38.35 | 53.9 | Stamford at Greenwich | 2025 | Outdoor | 1 |
| 3200m | 11:00.41 | 30.6 | Fast Times at Ridgefield High | 2026 | Outdoor | 158 |
| 1600m | 5:10.03 | 29.2 | Hillhouse Freshman-Sophomore Showcase | 2026 | Indoor | 18 |
| 1600m | 5:09.53 | 27.7 | 10th Froshmore Invitational | 2026 | Outdoor | 23 |
| 1600m | 5:09.57 | 27.6 | Staples at Greenwich | 2026 | Outdoor | 11 |
| 1600m | 5:09.75 | 27.5 | Central at Greenwich | 2026 | Outdoor | 4 |
| 1600m | 5:11.14 | 26.5 | Stamford at Greenwich | 2026 | Outdoor | 18 |
| 1600m | 5:20.12 | 21.9 | FCIAC Qualifying Meet S1 | 2026 | Indoor | 12 |
| 5000m | 18:26.00 | 21 | FCIAC Cross Country Championships | 2025 | Cross Country | 11 |
| 800m | 2:22.72 | 20.5 | 10th Froshmore Invitational | 2026 | Outdoor | 31 |
| 1600m | 5:22.48 | 20.3 | Bethel Indoor Invitational | 2026 | Indoor | 30 |
| 1600m | 5:23.15 | 19.8 | The 11th Annual Ocean Breeze Freedom Games | 2026 | Indoor | 48 |
| 5000m | 18:33.50 | 19.6 | Stamford, McMahon, Central at Greenwich | 2025 | Cross Country | 24 |
| 800m | 2:24.04 | 18.5 | Stamford at Greenwich | 2026 | Outdoor | 15 |
| 800m | 2:25.32 | 16.6 | Greenwich at Trumbull | 2026 | Outdoor | 10 |
| 5000m | 18:53.93 | 16 | 13th Winding Trails XC Invitational | 2025 | Cross Country | 12 |
| 1600m | 5:28.41 | 15.1 | Greenwich at Staples | 2025 | Outdoor | 16 |
| 3200m | 11:52.97 | 14.7 | Danbury at Greenwich | 2025 | Outdoor | 3 |
| 1600m | 5:36.92 | 10.3 | Norwalk & Westhill at Greenwich | 2025 | Outdoor | 13 |
| 800m | 2:32.39 | 7.4 | Trumbull at Greenwich | 2025 | Outdoor | 17 |
| 300m | 48.74 | 5.4 | FCIAC Qualifying Meet S2 | 2026 | Indoor | 77 |
| 3200m | 12:38.64 | 4.1 | Stamford at Greenwich | 2025 | Outdoor | 7 |
| 5000m | 20:17.40 | 3.8 | Nike Cross Nationals Northeast Regional | 2025 | Cross Country | 221 |
| 5000m | 20:28.00 | 2.5 | Ocean State XC Invitational High Schools | 2025 | Cross Country | 91 |
| 600m | 1:53.71 | 1.6 | FCIAC Qualifying Meet S2 | 2026 | Indoor | 18 |
| 3000m | 12:16.00 | -1.2 | FCIAC Cross Country Championships | 2024 | Cross Country | 28 |
| 5000m | 21:15.70 | -2.5 | Westhill, New Canaan, Wilton at Greenwich | 2024 | Cross Country | 51 |
| 3200m | 14:01.43 | -7.6 | Norwalk, Greenwich at Harding | 2025 | Outdoor | 4 |
| 3200m | 14:15.60 | -8.6 | Hatters Cross Country Invitational | 2024 | Cross Country | 22 |
