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Sailor · 2020–2026

Ivo Polderman

kon ned zeil en roeivereeniging J/70ORC handicapHandicap

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Events
24

147 races · 20 race wins

Win rate
13%

13% win rate · 3 of 24

Podium rate
17%

4 top-three finishes

Typically beats
54%

of boats faced (range 50%–57%, 614 boats)

Best class ranking
#388

Crew in J/70 · rating 290

Longest win streak
3

race wins in a row

Most successful partnership
Olaf Bouwens

1 wins · 2 podiums in 4 events together

Best trio
Mees de Graaf & Olaf Bouwens

1 wins · 2 podiums in 4 events, all three aboard

Biggest lift
Olaf Bouwens

+26 points of fleet beaten when sailing together

Longest-running crew
Marcel Polderman

Sep 2020 – May 2026 · 8 events

Nemesis
Giangiacomo Serena di Lapigio

3–31 head to head in 34 races

Rival
John den Engelsman

19–20 in 40 races

Best day
9 Nov 2025

1-1-1-2-1-1 · Winter Series KNZRV 2025-2026

Signature result
1st of 10

North Sea Race · ORC handicap · 30 May 2025

Partnerships · 33 sailors

Most successful partnership: Olaf Bouwens — 1 wins · 2 podiums in 4 events together
  • Mees de Graaf · C-LION, Delft Challenge, Hollandsch roem, Hollandsch Roem · ClubSwan 36, J/70 13events 2 wins together · 3 podiums · 15% win rate · 19 of 112 races won Beat 60% of the fleet together(+5 vs. without) · best 1st · Oct 2021 – Sep 2026
  • Marcel Polderman · Silver, SILVER · Handicap, IRC handicap, ORC handicap 8events 1 wins together · 1 podiums · 13% win rate · 1 of 18 races won Beat 62% of the fleet together(+7 vs. without) · best 1st · Sep 2020 – May 2026
  • Joshua Amato · Delft Challenge, Hollandsch roem, Hollandsch Roem, Hollandsch Roem/Delft Challenge · J/70 6events 1 wins together · 2 podiums · 17% win rate · 8 of 43 races won Beat 77% of the fleet together(+26 vs. without) · best 1st · Oct 2021 – Sep 2023
  • Olaf Bouwens · Delft Challenge, Hollandsch roem, Hollandsch Roem · J/70 4events 1 wins together · 2 podiums · 4 events · 5 of 23 races won Beat 79% of the fleet together(+26 vs. without) · best 1st · Oct 2021 – Sep 2022
  • Edoardo Marelli · Hollandsch Roem, Hollandsch Roem/Delft Challenge, MUIDEN DELFT CHALLENGE · J/70 3events 0 wins together · 0 podiums · 3 events · 0 of 28 races won Beat 49% of the fleet together(−10 vs. without) · best 17th · Sep 2023 – Jun 2024
  • Valentijn Zoomers · C-LION, DUTCH SAIL · ClubSwan 36 3events 0 wins together · 0 podiums · 3 events · 0 of 23 races won Beat 5% of the fleet together(−60 vs. without) · best 7th · Apr 2024 – Jun 2025
  • Nienke Mullink · C-LION · ClubSwan 36 2events 0 wins together · 0 podiums · 2 events · 0 of 16 races won Beat 7% of the fleet together · best 7th · May 2025 – Jun 2025
  • Lies de Rouw · C-LION · ClubSwan 36 2events 0 wins together · 0 podiums · 2 events · 0 of 16 races won Beat 7% of the fleet together · best 7th · May 2025 – Jun 2025
  • John den Engelsman · MR HENRI, UCAJB4U · J/70 2events 0 wins together · 0 podiums · 2 events · 6 of 18 races won Beat 60% of the fleet together · best 4th · Nov 2025 – Sep 2026
  • Thijs Veltman · C-LION · ClubSwan 36 2events 0 wins together · 0 podiums · 2 events · 0 of 16 races won Beat 7% of the fleet together · best 7th · May 2025 – Jun 2025

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

Rating history

-5791238202120222023202420252026Helm rating, all classesCrew rating, all classes

— Helm rating, all classes · - - Crew rating, all classes

Event history · 24

DateEventBoatClassRoleFinish
4 Sep 2026Cascais 2026 J70 World ChampionshipMR HENRIJ/70Crew50th / 100
21 May 2026ORC DH Worlds 2026FirestormHandicapSkipper4th / 11
15 May 2026North Sea RaceSILVERORC handicapCrew16th / 29
15 May 2026North Sea RaceSILVERIRC handicapCrew10th / 26
12 May 2026North Sea Regatta 2026SilverORC handicapCrew6th / 13
9 Nov 2025Winter Series KNZRV 2025-2026UCAJB4UJ/70Crew4th / 11
18 Jun 20252025 Swan One Design WorldsC-LIONClubSwan 36Floater9th / 9
30 May 2025North Sea RaceSILVERORC handicapCo-skipper1st / 10
7 May 20252025 Swan Bonifacio ChallengeC-LIONClubSwan 36Floater7th / 8
4 Jun 2024J70 Corinthian Worlds 2024MUIDEN DELFT CHALLENGEJ/70Crew28th / 109
21 May 2024European ChampionshipHollandsch RoemJ/70Crew80th / 84
10 May 2024North Sea RaceSILVERORC handicapCrew5th / 37
7 May 2024North Sea Regatta 2024SilverORC handicapCrew5th / 17
18 Apr 20242024 Swan Tuscany ChallengeDUTCH SAILClubSwan 36Runners9th / 9
5 Sep 20232023 J/70 European ChampionshipHollandsch Roem/Delft ChallengeJ/70Headsail Trimmer17th / 48
18 Mar 2023Eredivisie ZeilenDelft ChallengeJ/70Crew4th / 14
10 Sep 2022ZUIDERZEE REGATTA 2022Delft ChallengeJ/70Crew1st / 5
25 Aug 2022Damen Breskens Sailing Weekend IRC European Championship 2022EmotionsHandicapCrew12th / 18
14 May 2022Iserlohner Glasenuhr J/70 2022 LM NRWHollandsch roemJ/70Crew4th / 11
10 Apr 2022J-70 10th of April RaceDelft ChallengeJ/70Crew3rd / 8
23 Oct 2021Eredivisie Zeilen 2021Team 2: KNZ&RVJ/70Crew1st / 9
1 Oct 2021Van Uden Reco Medemblik Regatta 2021Hollandsch RoemJ/70Skipper4th / 13
1 Oct 2020Van Uden Reco Medemblik Regatta 2020SilverHandicapCrew8th / 13
11 Sep 2020100 Mijl Bruine Bank Race 2020SilverORC handicapCrew20th / 26

Crew rating across all classes: 230, #12,389.Helm rating across all classes: 85. Compiled from public results; not an official ranking.