Sailor · 2021–2026

Sertel Sen

yachtclub m hnesee e v J/70 J/70 (IDB)Nordic Folkboat

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Events: 10
Win rate: 10%
Podium rate: 10%
Typically beats: 16%
Best class ranking: #1288

Nemesis: Julian Ramm
Best day: 13 Jun 2026
Signature result: 1st of 13

Partnerships · 19 sailors

Siegmund Mainka · 7Oceans, Sertel SEN · J/70 2events 0 wins together · 0 podiums · 2 events · 0 of 14 races won Beat 6% of the fleet together · best 12th · May 2025 – Jun 2025
Johann Schrage · 7Oceans, Sertel SEN · J/70 2events 0 wins together · 0 podiums · 2 events · 0 of 14 races won Beat 6% of the fleet together · best 12th · May 2025 – Jun 2025
Tobi Schrage · ENDURANCE · Folkeboot (nicht zwingend Klassenkonform), Nordic Folkboat 2events 1 wins together · 1 podiums · 2 events · 2 of 12 races won Beat 78% of the fleet together · best 1st · Oct 2024 – Jun 2026
Achim Cloer · ENDURANCE · Folkeboot (nicht zwingend Klassenkonform), Nordic Folkboat 2events 1 wins together · 1 podiums · 2 events · 2 of 12 races won Beat 78% of the fleet together · best 1st · Oct 2024 – Jun 2026
Rebecca Jones · Sertel SEN · J/70 1events 0 wins together · 0 podiums · 1 events · 0 of 5 races won Beat 0% of the fleet together · best 12th · May 2025 – May 2025
Ruediger Margale · Murtfeldt · J/70 (IDB) 1events 0 wins together · 0 podiums · 1 events · 0 of 9 races won Beat 43% of the fleet together · best 9th · Jul 2026 – Jul 2026
Daniel Grobbel · Team YCM · J/70 1events 0 wins together · 0 podiums · 1 events · 0 of 9 races won Beat 9% of the fleet together · best 44th · Jun 2024 – Jun 2024
Jonas Bottländer · Team YCM · J/70 1events 0 wins together · 0 podiums · 1 events · 0 of 9 races won Beat 9% of the fleet together · best 44th · Jun 2024 – Jun 2024
Ian Moritz Brinkschulte · Team YCM · J/70 1events 0 wins together · 0 podiums · 1 events · 0 of 9 races won Beat 9% of the fleet together · best 44th · Jun 2024 – Jun 2024
Klaus Rocholl · Thomas AUST · J/70 1events 0 wins together · 0 podiums · 1 events · 0 of 9 races won Beat 8% of the fleet together · best 36th · Sep 2021 – Sep 2021

Lift shows how much better this sailor finishes with that partner aboard.

Rating history

— Helm rating, full-size sailing · - - Crew rating, full-size sailing

Event history · 10

Date	Event	Boat	Class	Role	Finish
9 Jul 2026	88. Warnemünder Woche 2026	Murtfeldt	J/70 (IDB)	Crew	9th / 15
13 Jun 2026	Goldenes Waffeleisen der Nordischen Folkeboote	ENDURANCE	Nordic Folkboat	Crew	1st / 13
9 Oct 2025	Internationale Deutsche Meisterschaft J/70	Sertel SEN	J/70	Skipper	43rd / 44
26 Jun 2025	Kieler Woche 2025	7Oceans	J/70	Skipper	50th / 56
17 May 2025	MöhneCup J70	Sertel SEN	J/70	Skipper	12th / 12
26 Oct 2024	Goldenes Waffeleisen 2024	ENDURANCE	Folkeboot (nicht zwingend Klassenkonform)	Crew	5th / 10
6 Jul 2024	YCM Clubmeisterschaft	7Oceans	Handicap	Skipper	19th / 20
27 Jun 2024	Kieler Woche 2024	Team YCM	J/70	Skipper	44th / 48
4 May 2024	Möhne J70 Cup	Sertel SEN	J/70	Skipper	12th / 15
9 Sep 2021	Kieler Woche 2021	Thomas AUST	J/70	Crew	36th / 39

Ratings

Class	Rating	Rank	Impact
Full-size sailing Crew	111 provisional	#26027 band 13506–43504	—
Full-size sailing Helm	-174 provisional	#78950 band 66348–83846	—
J/70 Helm	-216 provisional	#1288 band 1158–1355	−11.8

4 more classes, not yet ranked

J/70 · Crew · 9 races, 1 event · rating -87
J/70 (IDB) · Crew · 9 races, 1 event · rating 21
Folkeboot (nicht zwingend Klassenkonform) · Crew · 7 races, 1 event · rating 66
Nordic Folkboat · Crew · 5 races, 1 event · rating 92

Rank among sailors with a substantial record, all time. In brackets, the ranks this rating cannot be told apart from. Impact is the points of fleet beaten that this sailor adds.

Helm and crew

As helm	6 events	0 wins	beats 8%
As crew	4 events	1 wins	beats 52%

How they race

Closer	+12 pts	last race of an event vs. the rest
Comeback	−10 pts	the race after a bottom-half finish
Consistency	39%	100% = the same result every event
Big fleets	7%	of the fleet beaten

Head to head

Helm	Races	W–L
Ingo Binder	28	3–25
Philipp Junker	28	1–27
Kai-Uwe Hollweg	27	2–25
Julian Ramm	27	0–27
Marvin Hamm	27	9–18
Heiko Schmidt	27	4–23
Lukas Feuerherdt	27	2–25
Sören Hadeler	27	3–23
Thomas Thormann	24	8–14
Stefan Meier	23	1–22
Ruediger Margale	19	1–18
Eiko Powilleit	18	1–16

Most-beaten opponent: Ulf Westerhoff (11–0).

Seasons

Year	Events	Wins	Beat
2026	2	1	71%
2025	3	0	4%
2024	4	0	23%
2021	1	0	8%

Boats

Sertel SEN · J/70 · 3 events · 2024–2025
ENDURANCE · Nordic Folkboat, Folkeboot (nicht zwingend Klassenkonform) · 2 events · 2024–2026
7Oceans · J/70, Handicap · 2 events · 2024–2025
Murtfeldt · J/70 (IDB) · 1 events · 2026
Team YCM · J/70 · 1 events · 2024
Thomas AUST · J/70 · 1 events · 2021

Where they race

Unknown · 10 events

Is this you?

Claim it to merge duplicates and remove results that aren’t yours. Changes apply at the nightly rebuild.

Crew rating, Full-size sailing: 111, #26,027.Helm rating, Full-size sailing: -174, #78,950. Compiled from public results; not an official ranking.