Madeline Koelbel

Career: 32.30 percentile of ICSA crews

Includes linked high school and college seasons.

▲ boats did better with this crew than with the skipper's usual crews▼ worseArrow length = size of the push, in rating points

Season	Team	Rating	League percentile	Team percentile	On team	Races	Team page
Spring 2026	Dartmouth College	3.30	89.40	35.71	5 of 7	23	Team page
Fall 2025	Dartmouth College	2.49	76.07	20.83	10 of 12	62	Team page
Spring 2024	Dartmouth College	3.00	80.78	45.83	7 of 12	12	Team page
Fall 2023	Dartmouth College	2.69	73.96	36.67	10 of 15	48	Team page

Regatta	Role	Div	Races	Avg	Rating
Spring 2022 Team page Season
O'Day Qualifier @ Bristol, RI	Skipper	B	6	7.3	-0.52
MBL Team Race Tournament	Skipper	TR	8	88%	—
MA High School State Champs	Skipper	A	14	5.7	0.26
Herreshoff Qualifier- Grass Island Greenwich	Skipper	A	5	1.6	1.91
2022 Sharon Invitational	Skipper	B	6	2.5	1.61
Fall 2021 Team page Season
Casco Bay Open	Skipper	B	5	4.0	1.00
Arnold Brown Regatta 2021	Skipper	B	8	3.9	1.63
Spring 2019 Team page Season
MBL Fresh / Soph Regatta	Skipper	B	4	2.0	2.85
NESSA Girls' Championship (Herreshoff Trophy)	Skipper	A	5	8.2	0.55

League	Name	School	Year
ICSA	Madeline Koelbel	Dartmouth College	'26

Short write-ups of what the ratings and results show, with the numbers and how they were computed.

How do skipper ratings work?A log-strength fitted to every race at once, smoothed week to week.
What a rating point is worthA one-point edge is a 73% chance to beat another boat in a race; two points is 88%.
How does a crew rating work?A crew rating is small and uncertain; a worked example on one roster.