Sailor · 2018–2026

Bart van Weezenbeek

yachtclub sempachersee Tempest Tempes International 8 Metre

Search sailors · About these ratings

Events: 13
Win rate: 23%
Podium rate: 46%
Typically beats: 64%
Best class ranking: #4
Longest win streak: 3

Most successful partnership: Reto Kunz
Biggest lift: Reto Kunz
Longest-running crew: Reto Kunz
Nemesis: Mario Suter
Rival: Patrice Rouanet
Best day: 13 Jun 2026
Signature result: 2nd of 14

Partnerships · 9 sailors

Most successful partnership: Reto Kunz — 2 wins · 4 podiums in 9 events together · 22% win rate

Reto Kunz · Naranja · Tempes, Tempest 9events 2 wins together · 4 podiums · 22% win rate · 7 of 57 races won Beat 75% of the fleet together(+14 vs. without) · best 1st · Jul 2018 – Sep 2026
Thomi Stalder · Thomi STALDER · Tempest 2events 1 wins together · 2 podiums · 2 events · 4 of 9 races won Beat 83% of the fleet together · best 1st · Apr 2026 – Jun 2026
Beat Baumann · Naranja · Tempest 1events 0 wins together · 0 podiums · 1 events · 1 of 4 races won Beat 40% of the fleet together · best 4th · Sep 2020 – Sep 2020
Ruediger Stihl · Ayana · International 8 Metre 1events 0 wins together · 0 podiums · 1 events · 0 of 10 races won Beat 40% of the fleet together · best 13th · Aug 2025 – Aug 2025
Clas Jonseus · Ayana · International 8 Metre 1events 0 wins together · 0 podiums · 1 events · 0 of 10 races won Beat 40% of the fleet together · best 13th · Aug 2025 – Aug 2025
Juliane Hempel · Ayana · International 8 Metre 1events 0 wins together · 0 podiums · 1 events · 0 of 10 races won Beat 40% of the fleet together · best 13th · Aug 2025 – Aug 2025
Ralf Nagel · Ayana · International 8 Metre 1events 0 wins together · 0 podiums · 1 events · 0 of 10 races won Beat 40% of the fleet together · best 13th · Aug 2025 – Aug 2025
Torkel Sintorn · Ayana · International 8 Metre 1events 0 wins together · 0 podiums · 1 events · 0 of 10 races won Beat 40% of the fleet together · best 13th · Aug 2025 – Aug 2025
Thomas Stalder · Ayana · International 8 Metre 1events 0 wins together · 0 podiums · 1 events · 0 of 10 races won Beat 40% of the fleet together · best 13th · Aug 2025 – Aug 2025

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

Rating history

Event history · 13

Date	Event	Boat	Class	Role	Finish
18 Sep 2026	Tempest Klassenmeisterschaft 2026	Naranja	Tempes	Crew	6th / 12
5 Sep 2026	PM 15m2 SNS und Tempest RR Star und J70	Naranja	Tempest	Crew	1st / 5
13 Jun 2026	RVB Cup Onyx, Star, Tempest	Thomi STALDER	Tempest	Crew	1st / 6
26 Apr 2026	Frühlingsregatta YCS Tempest und ILCA PM	Thomi STALDER	Tempest	Crew	2nd / 4
3 Aug 2025	International 8 Metre World Cup 2025	Ayana	International 8 Metre	Crew	13th / 21
17 Aug 2022	Revival der olympischen Segelregatten von 1972 - Revival of the 1972 olympic sailing competition	Naranja	Tempest	Crew	18th / 33
19 Jun 2021	RVB Cup 1	Naranja	Tempest	Crew	3rd / 9
26 Sep 2020	Tempest / Kreuzerpokal 2020	Naranja	Tempest	Crew	4th / 6
28 Sep 2019	Tempest / Jollenweekend 2019	Naranja	Tempest	Crew	1st / 7
11 Aug 2019	Tempest Worlds 2019	Naranja	Tempest	Crew	16th / 43
22 Jun 2019	WW1 SM blu26 und KM/EC Tempest	Naranja	Tempest	Crew	2nd / 14
17 Aug 2018	Windweek 1	Naranja	Tempest	Crew	4th / 12
21 Jul 2018	Segelwoche	Naranja	Tempest	Crew	4th / 12

Ratings

Class	Rating	Rank	Impact
All classes Crew	337 provisional	#5887 band 3193–10474	—
Tempest Crew	386 provisional	#4 band 2–6	+7.7

2 more classes, not yet ranked

Tempes · Crew · 10 races, 1 event · rating 84
International 8 Metre · Crew · 10 races, 1 event · rating -27

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	0 events	0 wins	beats —
As crew	13 events	3 wins	beats 71%

How they race

Closer	+3 pts	last race of an event vs. the rest
Comeback	−11 pts	the race after a bottom-half finish
Consistency	58%	100% = the same result every event
Small fleets	80%	of the fleet beaten

Head to head

Helm	Races	W–L
Michael Ribback	70	63–6
Mario Suter	61	18–42
Patrice Rouanet	39	18–21
Jean-Marie Thierry	34	22–12
Rolf Hunkeler	32	17–15
Michael Kässberger	25	18–7
Helmut Quermann	25	19–6
Jürg Lehni	20	18–1
Emmanuel Desfond	20	12–8
Brigitte Christen	19	18–1
Tobias Spranger	18	3–15
Michael Schmohl	15	8–7

Most-beaten opponent: Michael Ribback (63–6).

Seasons

Year	Events	Wins	Beat
2026	4	2	80%
2025	1	0	40%
2022	1	0	47%
2021	1	0	75%
2020	1	0	40%
2019	3	1	86%
2018	2	0	73%

Boats

Naranja · Tempes, Tempest · 10 events · 2018–2026
Thomi STALDER · Tempest · 2 events · 2026
Ayana · International 8 Metre · 1 events · 2025

Where they race

Unknown · 13 events

Is this you?

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

Crew rating across all classes: 337, #5,887. Compiled from public results; not an official ranking.