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Runner Profile
Thaddaeus Flatz-Ehrfeld
Groton / PR 18:10.00
Course-adjusted PR 17:46.65
Adjusted-best source course
Williston Northampton School 5K
Nov 8, 2025
Rankings use the course-adjusted PR, not the raw race time.
Progress graph
Season progression
Each race appears as a dot in chronological order. Hover a dot for the race name and click it to open the race page.
Race History
Most recent results first
Showing only 2025 results for this season view.
| Date | Race | Course | Raw / Adj. | Place |
|---|---|---|---|---|
| Nov 8, 2025 | NEPSTA Division II ChampionshipNov 8, 2025 · Place 22 | Williston Northampton School 5K | Raw 18:10.00Adj. 17:46.65 | 22 |
| Oct 31, 2025 | Independent School League (ISL) ChampionshipOct 31, 2025 · Place 28 | Wrentham Championship 5K | Raw 17:43.58Adj. 18:10.24 | 28 |
| Oct 18, 2025 | Tabor vs. Groton vs. St. Mark'sOct 18, 2025 · Place 5 | Washington Park 5K Course | Raw 18:11.00Adj. 18:24.49 | 5 |
| Oct 4, 2025 | Brooks vs. Rivers, Groton, TaborOct 4, 2025 · Place 5 | Brooks School 5K | Raw 19:34.00Adj. 19:06.51 | 5 |
| Sep 27, 2025 | Groton, St. Sebastian's, Rivers, Roxbury LatinSep 27, 2025 · Place 16 | RL 5K Course | Raw 20:28.00Adj. 19:35.93 | 16 |
| Sep 20, 2025 | Governor's vs Brooks vs Groton (JV)Sep 20, 2025 · Place 3 | Governor's 5K Course | Raw 19:03.00Adj. 18:33.37 | 3 |