Johns Hopkins University Athletics

Aiden Deffner NIL Store

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Deffner's Top Times and Career Results (TFRRS)

2025-26
Indoor
- Did not compete during the 2025-26 indoor season
 
Outdoor
- Did not compete during the 2026 outdoor season

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2024-2025
Indoor
- Placed sixth in the 800m at the Centennial Conference Championships in a season-best 1:56.86. 

Outdoor
- Opened with a personal-best time of 4:19.37 in the 1500m at the Navy Invite.
- Placed seventh in the 800m at the Hopkins-Loyola Invite in a personal-best 1:54.24. 

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2023-2024
Indoor
- Ran a personal-best time of 4:31.72 in the Mile at the Centennial Conference Championships.
- Competed on the winning DMR at the Centennial Conference Championships.
- Ran a lifetime best in the 1000m at the NYC Gotham Cup in a time of 2:39.69.
- Clocked a season-best 2:01.00 in the 800m at the NYU DIII Invite. 

Outdoor
- Opened with a season-best 1:57.94 in the 800m at the Navy Invite.
- Ran a season-best 1500m time of 4:23.24 at the George Mason Ebanks Invite.

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High School
- Ran track & cross country under Jorge Chen

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Personal
- Son of Peter & Andrea Deffner
- Has one sibling, Julia
- Majoring in computer science