Jack O'Brien
- Total Results 172
- Total Events 19
Personal Records
- 5K (xc) - 20:05.00
- Discus - 130-9
- High Jump (in) - 5-10.5
- High Jump - 6-0
- Javelin - 203-7.75
- Pole Vault (in) - 10-0
- Shot Put (in) - 42-3
- Shot Put - 40-2.5
- Decathlon - 5028
- 100m - 12.46
- 110mH - 18.98
- 400m - 58.64
- 1500m - 5:23.66
- 4K (xc) - 15:57.07
- 3 Mile (xc) - 21:19.70
- Hammer Throw - 118-5
- Long Jump - 17-5
- Pole Vault - 9-6.25
- Weight (in) - 36-2