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Sailor · 2015–2026

Tom Seibold

ccsc Optimist420F18

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Events
56

341 races · 16 race wins

Win rate
9%

9% win rate · 5 of 56

Podium rate
25%

14 top-three finishes

Typically beats
56%

of boats faced (range 54%–58%, 2,776 boats)

Best class ranking
#404

Helm in Optimist · rating 474

Longest win streak
2

race wins in a row

Most successful partnership
Luka Juan

1 wins · 2 podiums in 4 events together

Biggest lift
Luka Juan

+16 points of fleet beaten when sailing together

Longest-running crew
Sophie Niemann

Dec 2023 – Nov 2024 · 5 events

Nemesis
John Hartney

14–90 head to head in 104 races

Rival
Garrett January

58–52 in 110 races

Best day
24 Oct 2020

1-7-3-2-3 · Tampa Bay Opti Series #2

Signature result
1st of 34

2021 School's Out Regatta · Optimist · 29 May 2021

Partnerships · 23 sailors

Most successful partnership: Luka Juan — 1 wins · 2 podiums in 4 events together
  • Sophie Niemann · Aria, Sophie Niemann · J/70, Nacra 15 5events 0 wins together · 1 podiums · 0% win rate · 3 of 29 races won Beat 43% of the fleet together(−20 vs. without) · best 2nd · Dec 2023 – Nov 2024
  • Luka Juan · Tom Seibold, TSLJ · F18, Melges 15 4events 1 wins together · 2 podiums · 4 events · 2 of 30 races won Beat 77% of the fleet together(+16 vs. without) · best 1st · Jan 2025 – Oct 2025
  • David Niemann · Aria · J/70 3events 0 wins together · 0 podiums · 3 events · 0 of 11 races won Beat 37% of the fleet together(−26 vs. without) · best 13th · Dec 2023 – Feb 2025
  • Tilly Niemann · Aria, Tilly Niemann · J/70, Nacra 15 3events 0 wins together · 0 podiums · 3 events · 0 of 23 races won Beat 24% of the fleet together(−39 vs. without) · best 5th · Jun 2023 – Feb 2024
  • Ava Cohen · 9326, Tom Seibold · 420 3events 0 wins together · 1 podiums · 3 events · 0 of 17 races won Beat 55% of the fleet together(−7 vs. without) · best 3rd · May 2023 – Jul 2023
  • Matthew Monts · Aria · J/70 2events 0 wins together · 0 podiums · 2 events · 0 of 12 races won Beat 39% of the fleet together · best 26th · Dec 2023 – Jan 2024
  • Lydia Woolson · 9326, Aria · 420, J/70 2events 0 wins together · 1 podiums · 2 events · 1 of 13 races won Beat 69% of the fleet together · best 2nd · Sep 2022 – Jan 2024
  • Susie Niemann · Aria · J/70 1events 0 wins together · 0 podiums · 1 events · 0 of 3 races won Beat 10% of the fleet together · best 46th · Feb 2024 – Feb 2024
  • Jad Abadrabo · Fat Lady · PHRF handicap 1events 0 wins together · 1 podiums · 1 events · 0 of 1 race won Beat 75% of the fleet together · best 2nd · Feb 2022 – Feb 2022
  • William Weidner · Fat Lady · PHRF handicap 1events 0 wins together · 1 podiums · 1 events · 0 of 1 race won Beat 75% of the fleet together · best 2nd · Feb 2022 – Feb 2022

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

Rating history

-74197467201620182020202220242026Helm rating, all classesCrew rating, all classes

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

Event history · 56

DateEventBoatClassRoleFinish
19 Sep 2026Formula 18 Americas Championship 2026USA 430F18Skipper12th / 27
31 Oct 2025Hilton Head Multi Hull 50th Anniversary Beach RegattaTSLJF18Skipper1st / 6
26 Aug 2025F18 Americas ChampionshipTom SeiboldF18Skipper12th / 29
1 Aug 2025Trivers Trap Out RegattablankHandicapSkipper5th / 9
1 Aug 2025Trivers Trap Out RegattablankHandicapSkipper5th / 9
13 Jun 2025Nacra 50th Year RegattaTSLJF18Skipper2nd / 7
26 Apr 202570th Miami Key Largo – 2025Flying BrickNacra 15 FCSCrew1st / 4
15 Feb 20252025 Club 420 Midwinter Championship for the John V. Hanson TrophyTom Seibold420Skipper128th / 141
8 Feb 20252024/2025 DIYC J 70 Winter Series 3AriaJ/70Crew13th / 36
4 Jan 20252024-25 Melges 15 Winter Series #2Tom SeiboldMelges 15Skipper42nd / 109
22 Nov 2024US Sailing Youth Racing Camp EAST presented by Risk StrategiesSophie NiemannNacra 15Crew2nd / 10
23 Sep 20242024 Formula 18 Americas Championship430Formula 18Skipper12th / 23
21 Sep 2024RYC Multihull Invitational Regatta 2024430F18Skipper11th / 19
21 Jun 20242024 U.S. Youth Championship presented by SouthCoast WindSophie NiemannNacra 15Crew6th / 9
18 May 20242024 School's Out Regatta9326420Skipper2nd / 12
4 Feb 20242023/2024 DIYC J 70 Winter Series 3AriaJ/70Other46th / 51
6 Jan 20242023/2024 DIYC J 70 Winter Series 2AriaJ/70Other28th / 48
2 Dec 20232023/2024 DIYC J 70 Winter Series 1AriaJ/70Other26th / 40
24 Jul 20232023 Club 420 North American ChampionshipTom Seibold420Skipper123rd / 130
7 Jul 20232023 Club 420 Association National ChampionshipTom Seibold420Skipper27th / 113
25 Jun 20232023 U.S. Youth Championship presented by SouthCoast WindTilly NiemannNacra 15Crew5th / 6
10 Jun 2023Yellow Brick Regatta177Open Class CatamaranSkipper1st / 3
20 May 20232023 School's Out Regatta9326420Skipper3rd / 12
14 Jan 2023Gasparilla Regatta16420Skipper5th / 10
2 Dec 20222022 USA Junior Olympic Sailing FestivalTom Seibold420Skipper20th / 54

Helm rating across all classes: 172, #21,897.Crew rating across all classes: 22, #39,871. Compiled from public results; not an official ranking.