Sailor · 2010–2026

David Koski

eyc J/70 PHRF handicap C&C 35 Mk I

Search sailors · About these ratings

Events: 54
Win rate: 17%
Podium rate: 35%
Typically beats: 55%
Best class ranking: #266
Longest win streak: 5

Most successful partnership: Paul Dosch
Best trio: Paul Dosch & Jon Berg
Biggest lift: Peter Dodenhoff
Longest-running crew: Daniel Padilla
Nemesis: Brian Keane
Rival: Tod Sackett
Best day: 30 Sep 2017
Signature result: 1st of 10

Partnerships · 40 sailors

Most successful partnership: Paul Dosch — 4 wins · 9 podiums in 12 events together · 33% win rate

Daniel Padilla · Latitude, Regardless · C&C 35 MK 1, C&C 35 Mk I, C&C 35 MKI, J/120 14events 4 wins together · 10 podiums · 29% win rate · 14 of 51 races won Beat 77% of the fleet together(+17 vs. without) · best 1st · Jun 2010 – May 2026
Jon Berg · Latitude, Regardless · C&C 35 MK 1, C&C 35 Mk I, C&C 35 MKI, J/120 13events 4 wins together · 10 podiums · 31% win rate · 14 of 50 races won Beat 78% of the fleet together(+19 vs. without) · best 1st · Jun 2010 – May 2026
James Reese · Latitude, Regardless · C&C 35 MK 1, C&C 35 Mk I, C&C 35 MKI, J/120 12events 3 wins together · 8 podiums · 25% win rate · 13 of 45 races won Beat 76% of the fleet together(+16 vs. without) · best 1st · Jun 2010 – May 2026
Paul Dosch · Latitude, Regardless · C&C 35 MK 1, C&C 35 Mk I, C&C 35 MKI, J/120 12events 4 wins together · 9 podiums · 33% win rate · 14 of 49 races won Beat 77% of the fleet together(+17 vs. without) · best 1st · Jun 2011 – May 2026
Michael Dosch · Regardless · C&C 35 MK 1, C&C 35 Mk I, PHRF handicap 9events 2 wins together · 7 podiums · 22% win rate · 6 of 25 races won Beat 77% of the fleet together(+16 vs. without) · best 1st · Jun 2010 – Jun 2024
Chris Ferriole · Latitude, Regardless · C&C 35 Mk I, C&C 35 MKI, J/120, PHRF handicap 8events 3 wins together · 6 podiums · 38% win rate · 11 of 40 races won Beat 76% of the fleet together(+14 vs. without) · best 1st · Jun 2016 – May 2026
Peter Dodenhoff · Regardless · C&C 35 MK 1, C&C 35 Mk I, C&C 35 MKI, PHRF handicap 7events 3 wins together · 5 podiums · 43% win rate · 10 of 21 races won Beat 84% of the fleet together(+23 vs. without) · best 1st · Jun 2010 – Jun 2023
Maciej Zawadzki · Soul · J/70 7events 1 wins together · 3 podiums · 14% win rate · 10 of 48 races won Beat 73% of the fleet together(+10 vs. without) · best 1st · Jan 2016 – Jun 2018
Greg Koski · soul, Soul, USA 69 · J/70 5events 1 wins together · 1 podiums · 20% win rate · 10 of 79 races won Beat 61% of the fleet together(−3 vs. without) · best 1st · Feb 2013 – Sep 2018
Matt Koski · Latitude, Regardless · C&C 35 Mk I, J/120 3events 0 wins together · 2 podiums · 3 events · 2 of 22 races won Beat 57% of the fleet together(−8 vs. without) · best 3rd · Jun 2019 – May 2026

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

Rating history

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

Event history · 54

Date	Event	Boat	Class	Role	Finish
29 May 2026	2026 Helly Hansen Sailing World Regatta Series - Detroit	Latitude	J/120	Headsail Trimmer	3rd / 6
20 Jun 2025	2025 Cleveland Race Week One Design	Soul	J/70	Skipper	4th / 5
30 May 2025	2025 Helly Hansen Sailing World Regatta Series - Detroit	Latitude	J/120	Headsail Trimmer	5th / 9
13 Jun 2024	2024 Cleveland Race Week One Design	Soul	Handicap	Skipper	1st / 10
7 Jun 2024	2024 Invitational Mills Trophy Race	Regardless	PHRF handicap	Headsail Trimmer	1st / 8
31 Oct 2023	2023 J/70 World Championship	SOUL	J/70	Owner	56th / 83
14 Oct 2023	2023 J/70 Pre-Worlds Tuning Regatta	USA 312	J/70	Other	19th / 21
17 Jun 2023	2023 Cleveland Race Week One Design	David Koski	J/70	Skipper	5th / 7
2 Jun 2023	2023 Bayview One Design Regatta	Regardless	C&C 35 MKI	Headsail Trimmer	1st / 5
24 Jun 2022	2022 J/70 Corinthian National Championship	RUFKM	J/70	Helm	7th / 15
17 Jun 2022	2022 Cleveland Race Week - One Design	RUFKM	J/70	Other	4th / 7
18 Jun 2021	2021 Cleveland Race Week - One Design	RUFKM	J/70	Other	6th / 12
10 Jun 2021	2021 Invitational Mills Trophy Race	Regardless	PHRF handicap	Headsail Trimmer	4th / 8
13 May 2021	2021 J/70 North American Championship	RUFKM	J/70	Helm	21st / 59
25 Sep 2019	2019 J 70 North American Championship	RUFKM	J/70	Other	12th / 35
1 Jun 2019	2019 Bayview One Design Regatta	Regardless	C&C 35 Mk I	Headsail Trimmer	3rd / 6
27 Sep 2018	2018 J 70 World Championship	Soul	J/70	Owner	69th / 91
15 Jun 2018	2018 Cleveland Race Week - One Design	Soul	J/70	Other	4th / 13
15 Jun 2018	2018 Cleveland Race Week - One Design	Herbs & Spices	Jet 14	Skipper	7th / 7
16 Mar 2018	2018 One Design Midwinter Regatta	K2	VX One	Skipper	13th / 20
30 Sep 2017	Cleveland (216) Regatta	Soul	J/70	Skipper	1st / 8
15 Jun 2017	2017 Cleveland Race Week - One Design	Soul	J/70	Other	3rd / 16
3 Jun 2017	2017 Bayview One Design Regatta	Regardless	C&C 35 Mk I	Headsail Trimmer	2nd / 6
15 Oct 2016	(216) Regatta	Soul	J/70	Skipper	10th / 13
23 Jun 2016	Cleveland Race Week 2016 Offshore Regatta	USA 77	PHRF handicap	Skipper	1st / 7

Ratings

Class	Rating	Rank	Adj. ±
All classes Helm	292	#10497 band 7257–14796	—
J/70 Helm	228 provisional	#266 band 196–389	−1.5
All classes Crew	298 provisional	#7751 band 4553–12736	—
C&C 35 Mk I Crew	198 provisional	#10 band 2–19	—

7 more classes, not yet ranked

J/120 · Crew · 17 races, 2 events · rating 147
J/70 · Crew · 17 races, 2 events · rating 7
J/22 · Helm · 6 races, 1 event · rating 83
VX One · Helm · 5 races, 1 event · rating -4
C&C 35 MKI · Crew · 5 races, 1 event · rating 114
C&C 35 MK 1 · Crew · 4 races, 1 event · rating 33
Jet 14 · Crew · 2 races, 1 event · rating -75

Rank among sailors with ten or more rated races over three or more events, all time. In brackets, the ranks this rating cannot be told apart from. Adj. ± is the adjusted plus-minus in points of fleet beaten.

Helm and crew

As helm	37 events	5 wins	beats 62%
As crew	17 events	4 wins	beats 68%

Positions: Headsail Trimmer (14) · Owner (2)

How they race

Closer	−2 pts	last race of an event vs. the rest
Comeback	−13 pts	the race after a bottom-half finish
Consistency	48%	100% = the same result every event
Big fleets (25+)	53%	of the fleet beaten
Small fleets (<12)	72%	of the fleet beaten

Head to head

Helm	Races	W–L
Tod Sackett	97	54–43
Richard Nesbett	88	57–31
John Zelli	86	75–11
Tim Gibbs	80	65–15
James Hermetet	79	64–15
Dave Kerr	76	26–50
Joel Ronning	74	10–64
Brian Keane	69	3–65
Trey Sheehan	68	24–44
Joe Colling	62	37–25
John Heaton	61	24–36
Will Welles	61	12–49

Most-beaten opponent: John Zelli (75–11).

Seasons

Year	Events	Wins	Beat
2026	1	0	60%
2025	2	0	38%
2024	2	2	100%
2023	4	1	44%
2022	2	0	54%
2021	3	0	59%
2019	2	0	64%
2018	4	0	34%
2017	3	1	89%
2016	6	2	75%
2015	10	1	64%
2014	6	1	78%
2013	7	1	62%
2011	1	0	83%
2010	1	0	67%

Boats

Soul · J/70, Handicap, J/22, PHRF handicap · 27 events · 2013–2025
Regardless · PHRF handicap, C&C 35 MKI, C&C 35 Mk I, C&C 35 MK 1 · 12 events · 2010–2024
RUFKM · J/70 · 5 events · 2019–2022
Latitude · J/120 · 2 events · 2025–2026
USA 69 · J/70 · 2 events · 2013
USA 312 · J/70 · 1 events · 2023
David Koski · J/70 · 1 events · 2023
Herbs & Spices · Jet 14 · 1 events · 2018
K2 · VX One · 1 events · 2018
USA 77 · PHRF handicap · 1 events · 2016

Where they race

Cleveland, OH · 16 events
Detroit, MI, USA · 7 events
Cleveland, OH, USA · 7 events
Toledo, OH, USA · 6 events
St. Petersburg, FL, USA · 4 events
Tampa, FL, USA · 3 events

Is this you?

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

Helm rating across all classes: 292 (±113), #10,497.Crew rating across all classes: 298 (±155), #7,751. Compiled from public results; not an official ranking.