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Sailor · 2019–2026

Katherine Olsen

university of california at berkeley OptimistCollege fleet racingCollege team racing

Search sailors · About these ratings

Events
77

747 races · 85 race wins

Win rate
4%

4% win rate · 3 of 77

Podium rate
22%

17 top-three finishes

Typically beats
56%

of boats faced (range 54%–58%, 1,807 boats)

Best class ranking
#28

Crew in FJ · rating 204

Longest win streak
5

race wins in a row

Most successful partnership
Piper Holthus

1 wins · 1 podiums in 6 events together · 17% win rate

Best trio
Alyssa Cunningham Barkus & Fiona Wu

1 wins · 2 podiums in 3 events, all three aboard

Biggest lift
Piper Holthus

+23 points of fleet beaten when sailing together

Longest-running crew
Fiona Wu

Oct 2021 – Apr 2025 · 10 events

Nemesis
Owen Irving

6–93 head to head in 99 races

Rival
Molly Coghlin

92–108 in 200 races

Best day
8 Oct 2022

2-1-1-1-2-4-1-1-2-2-2-2-2-2-2-1-2-1-1-1-1-1-2-1-2-1 · Stoney Burke Women's Varsity

Signature result
1st of 10

SDYC Winter CFJ Scrimmage #3 · FJ · 17 Nov 2020

Partnerships · 47 sailors

Most successful partnership: Piper Holthus — 1 wins · 1 podiums in 6 events together · 17% win rate
  • Kingsley Ehrich · University of California at Berkeley (Bears), University of California at Berkeley (Mama Bears) · College fleet racing, College team racing 12events 1 wins together · 7 podiums · 8% win rate · 30 of 172 races won Beat 61% of the fleet together(+7 vs. without) · best 1st · Oct 2021 – Oct 2022
  • Alyssa Cunningham Barkus · University of California at Berkeley (Bears), University of California at Berkeley (Mama Bears), University of California at Berkeley (Ursas) · College fleet racing, College team racing 11events 1 wins together · 5 podiums · 9% win rate · 23 of 154 races won Beat 50% of the fleet together(−5 vs. without) · best 1st · Oct 2022 – Apr 2025
  • Fiona Wu · University of California at Berkeley (Bears 2), University of California at Berkeley (Bears), University of California at Berkeley (Mama Bears), University of California at Berkeley (Ursas) · College fleet racing, College team racing 10events 1 wins together · 4 podiums · 10% win rate · 36 of 162 races won Beat 48% of the fleet together(−8 vs. without) · best 1st · Oct 2021 – Apr 2025
  • Aliyah Al-Khafaji · University of California at Berkeley (Bears), University of California at Berkeley (Ursas) · College fleet racing, College team racing 10events 0 wins together · 2 podiums · 0% win rate · 12 of 154 races won Beat 38% of the fleet together(−19 vs. without) · best 3rd · Feb 2024 – Apr 2025
  • Will Cornell · University of California at Berkeley (Bears) · College fleet racing, College match racing, College team racing 10events 0 wins together · 1 podiums · 0% win rate · 21 of 137 races won Beat 31% of the fleet together(−27 vs. without) · best 3rd · Feb 2022 – Feb 2025
  • Catherine Arcaris · University of California at Berkeley (Bears 2), University of California at Berkeley (Bears), University of California at Berkeley (Ursas) · College fleet racing, College team racing 8events 0 wins together · 4 podiums · 0% win rate · 14 of 138 races won Beat 48% of the fleet together(−8 vs. without) · best 2nd · Feb 2024 – Apr 2025
  • Lindsea Hayes · University of California at Berkeley (Bears), University of California at Berkeley (Mama Bears) · College fleet racing, College team racing 8events 0 wins together · 3 podiums · 0% win rate · 19 of 107 races won Beat 52% of the fleet together(−3 vs. without) · best 2nd · Oct 2021 – Apr 2022
  • Iesha Carter · University of California at Berkeley (Bears), University of California at Berkeley (Mama Bears) · College fleet racing, College team racing 8events 0 wins together · 4 podiums · 0% win rate · 13 of 110 races won Beat 55% of the fleet together(±0 vs. without) · best 2nd · Oct 2021 – Oct 2022
  • Marlena Tavernier-Fine · University of California at Berkeley (Bears), University of California at Berkeley (Mama Bears) · College fleet racing, College team racing 7events 0 wins together · 2 podiums · 0% win rate · 10 of 69 races won Beat 56% of the fleet together(+2 vs. without) · best 2nd · Oct 2021 – Apr 2022
  • Piper Holthus · Bow 32, Katie Olsen, None, Piper Holthus · 420, FJ, Handicap 6events 1 wins together · 1 podiums · 17% win rate · 6 of 38 races won Beat 76% of the fleet together(+23 vs. without) · best 1st · Jun 2019 – Dec 2020

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

Rating history

01903792020202120222023202420252026Helm rating, all classesCrew rating, all classes

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

Event history · 77

DateEventBoatClassRoleFinish
9 Aug 2026PGJSA Championship Regatta 2026167463ILCA 4 (Laser 4.7)Skipper3rd / 16
5 Aug 2026PGJSA Qualifier Opti, Sunfish, Laser(ILCA) and C420 Regatta - DYC167463ILCA 4 (Laser 4.7)Skipper9th / 16
27 Jul 2026PGJSA Qualifier Sunfish and Laser(ILCA) Regatta - MYC167463ILCA 4 (Laser 4.7)Skipper6th / 18
24 Jul 2026Carol Smith Regatta PGJSA Qualifier ILCA and C420 Regatta - SYC167463ILCA 4 (Laser 4.7)Skipper7th / 20
16 Jul 2026PGJSA Qualifier Laser(ILCA) and C420 Regatta - SHYC167463ILCA 4 (Laser 4.7)Skipper7th / 16
10 Jul 2026PGJSA Qualifier Opti and ILCA Regatta - OCYC167463ILCA 4 (Laser 4.7)Skipper2nd / 13
11 Aug 2025PGJSA Championship Regatta 2025Island TimeOptimistSkipper11th / 47
6 Aug 2025PGJSA Qualifier Opti, Sunfish, Laser(ILCA) and C420 Regatta - DYC6258OptimistSkipper10th / 38
29 Jul 2025PGJSA Qualifier Opti and 420 Regatta - MYC6258OptimistSkipper25th / 55
24 Jul 2025Carol Smith Regatta PGJSA Qualifier Optimist and Sunfish Regatta - SYC6258OptimistSkipper16th / 59
18 Jul 2025PGJSA Qualifier Optimist Regatta - SHYC6258OptimistSkipper7th / 48
17 Jul 2025PGJSA Qualifier Opti Regatta - Shinnecock YC6258OptimistSkipper9th / 27
11 Jul 2025PGJSA Qualifier Opti and Laser(ILCA) Regatta - OCYC6258OptimistSkipper23rd / 51
8 Jul 2025Shelter Island Opti InvitationalIsland TimeHandicapSkipper12th / 15
5 Apr 2025PCCSC Wahine ChampionshipsUniversity of California at Berkeley (Ursas)College fleet racingA Skipper4th / 9
4 Apr 2025PCCSC Wahine Team Race ChampsUniversity of California at Berkeley (Ursas)College team racingSkipper3rd / 3
8 Feb 2025McIntyre Team RaceUniversity of California at Berkeley (Bears)College team racingCrew8th / 12
18 Jan 2025Peter Wenner Rainbow InviteUniversity of California at Berkeley (Bears)College fleet racingA Skipper (9-10)14th / 18
16 Nov 2024Fall Pacific Coast ChampionshipUniversity of California at Berkeley (Bears)College fleet racingC Skipper (1-4)11th / 19
26 Oct 2024PCCSC Women's Fall ChampionshipUniversity of California at Berkeley (Bears)College fleet racingA Skipper4th / 9
19 Oct 2024Stoney BurkeUniversity of California at Berkeley (Bears 2)College fleet racingA Skipper12th / 18
19 Oct 2024Stoney Burke WomensUniversity of California at Berkeley (Bears)College fleet racingA Skipper3rd / 4
21 Sep 2024PCCSC Richard Sweet Match Race ChampionshipUniversity of California at Berkeley (Bears)College match racingA Crew4th / 5
15 Aug 2024PGJSA Championship Regatta 2024Island TimeOptimistSkipper14th / 42
31 Jul 2024PGJSA Qualifier Opti and 420 Regatta - MYC6258OptimistSkipper21st / 43

Helm rating across all classes: 379, #5,663.Crew rating across all classes: 350, #5,309. Compiled from public results; not an official ranking.