Groton

Groton, MA

League rank

2025 record

6-5

Roster

Adjusted top five

18:07.66

Home course

Groton School

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ISL championship

9th place

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Scoring depth

0:37.90 top-five spread

Adjusted-time gap from the first runner to the fifth

Top seven runners

Team Snapshot

2025

01Thaddaeus Flatz-EhrfeldClass of 202717:48.0018:10.00 raw 02Chase BellamyClass of 202617:53.8818:16.00 raw 03Philip HollandClass of 202718:07.6717:54.00 raw 04T. ElsingerGraduation year unavailable18:22.8618:09.00 raw 05V. SalingerGraduation year unavailable18:25.9018:12.00 raw 06Colin SerhantGraduation year unavailable18:26.9118:13.00 raw 07Henry SeilheimerClass of 202718:28.9318:57.00 raw

Selected season

Recent Race Results

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NEPSTAs

Nov 8, 2025 · Williston Northampton School 5K

6th place

2025

215 points

First finisher: Thaddaeus Flatz-Ehrfeld, 22nd in 18:10.00

ISLs

Oct 31, 2025 · Wrentham Championship 5K

9th place

2025

220 points

First finisher: Thaddaeus Flatz-Ehrfeld, 28th in 17:43.58

Groton vs. St. George's

Oct 25, 2025 · Groton School

Results available

2025

7 runners

First finisher: Chase Bellamy, 1st in 17:51.00

Tabor vs. Groton vs. St. Mark's

Oct 18, 2025 · Washington Park 5K Course

2-0 at meet

2025

W 21-40 vs St. Mark's · W 28-28 vs Tabor

First finisher: Chase Bellamy, 3rd in 17:43.00

2025 roster

Roster

Ranked by course-adjusted best mark. Raw marks and source races remain available for context.

Rank	Runner	Class	Raw mark	Adj. mark	Source
01	Thaddaeus Flatz-EhrfeldClass 2027	2027	18:10.00	17:48.00	NEPSTAs · Nov 8, 2025
02	Chase BellamyClass 2026	2026	18:16.00	17:53.88	NEPSTAs · Nov 8, 2025
03	Philip HollandClass 2027	2027	17:54.00	18:07.67	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
04	T. ElsingerGraduation year unknown	—	18:09.00	18:22.86	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
05	V. SalingerGraduation year unknown	—	18:12.00	18:25.90	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
06	Colin SerhantGraduation year unknown	—	18:13.00	18:26.91	Groton vs. St. George's · Oct 25, 2025
07	Collin GrahamClass 2028	2028	18:33.00	18:48.19	Tabor vs. Groton vs. St. Mark's · Oct 18, 2025
08	Henry SeilheimerClass 2027	2027	18:41.00	18:55.27	Groton vs. St. George's · Oct 25, 2025
09	Ryder WoodworthClass 2026	2026	18:53.00	19:07.42	Groton vs. St. George's · Oct 25, 2025
10	Mateo Garciarramos PetrClass 2026	2026	19:04.00	19:18.56	Groton vs. St. George's · Oct 25, 2025
11	Felix DeschenesClass 2029	2029	19:17.00	19:31.72	Groton vs. St. George's · Oct 25, 2025
12	A. WaldorfGraduation year unknown	—	19:32.00	19:46.92	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
13	George TaggartClass 2027	2027	20:14.00	19:49.50	NEPSTAs · Nov 8, 2025
14	Jasper WhiteClass 2028	2028	19:49.00	20:05.23	Tabor vs. Groton vs. St. Mark's · Oct 18, 2025
15	Alex DoctoroffClass 2027	2027	19:52.00	20:08.27	Tabor vs. Groton vs. St. Mark's · Oct 18, 2025
16	Rory ChristopherClass 2028	2028	20:08.00	20:23.37	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
17	Victor FatClass 2028	2028	20:26.00	20:41.60	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
18	Eric LiangClass 2026	2026	20:29.00	20:45.78	Tabor vs. Groton vs. St. Mark's · Oct 18, 2025
19	Kevin KerriganClass 2029	2029	21:18.00	21:35.44	Tabor vs. Groton vs. St. Mark's · Oct 18, 2025
20	Aaron DufrendClass 2028	2028	21:31.00	21:48.62	Tabor vs. Groton vs. St. Mark's · Oct 18, 2025
21	David YuClass 2028	2028	22:12.00	22:28.95	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
22	Samuel AlladoClass 2029	2029	22:17.00	22:34.02	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
23	Zachary LimClass 2028	2028	22:31.00	22:49.44	Tabor vs. Groton vs. St. Mark's · Oct 18, 2025
24	Ashton VertusClass 2028	2028	22:33.00	22:51.47	Tabor vs. Groton vs. St. Mark's · Oct 18, 2025
25	Manato TanakaClass 2028	2028	24:49.00	23:47.67	Groton, St. Sebastian's, Rivers, Roxbury Latin · Sep 27, 2025
26	Justin LiuClass 2029	2029	24:55.00	25:14.03	Groton/Lawrence /Middlesex/Roxbury Latin Boys XC · Oct 10, 2025
27	Lowndes RobinsonClass 2027	2027	25:52.00	25:13.68	Govs vs Brooks vs Groton · Sep 20, 2025