Sailor · 2016–2025

Cian Byrne

royal cork yacht club 49er J/70 J/111

Search sailors · About these ratings

Events: 14
Win rate: 21%
Podium rate: 21%
Typically beats: 27%
Best class ranking: #24
Longest win streak: 4

Most successful partnership: Sally Mack
Best trio: Tony Mack & Sally Mack
Biggest lift: Sally Mack
Longest-running crew: Patrick Crosbie
Nemesis: Uberto Crivelli Visconti
Rival: Cas van Dongen
Best day: 25 Jun 2021
Signature result: 1st of 7

Partnerships · 38 sailors

Most successful partnership: Sally Mack — 3 wins · 3 podiums in 3 events together

Patrick Crosbie · cian BYRNE, Cian BYRNE, WILDCARD · 49er, J/70 6events 0 wins together · 0 podiums · 0% win rate · 0 of 70 races won Beat 21% of the fleet together(−38 vs. without) · best 26th · May 2016 – Jul 2023
Sally Mack · McFly · J/111 3events 3 wins together · 3 podiums · 3 events · 12 of 24 races won Beat 100% of the fleet together(+74 vs. without) · best 1st · Jul 2019 – Jun 2022
William Twomey · WILDCARD · J/70 3events 0 wins together · 0 podiums · 3 events · 0 of 19 races won Beat 43% of the fleet together(±0 vs. without) · best 19th · Jul 2023 – May 2025
Simon Baker · McFly · J/111 3events 3 wins together · 3 podiums · 3 events · 12 of 24 races won Beat 100% of the fleet together(+74 vs. without) · best 1st · Jul 2019 – Jun 2022
Tony Mack · McFly · J/111 3events 3 wins together · 3 podiums · 3 events · 12 of 24 races won Beat 100% of the fleet together(+74 vs. without) · best 1st · Jul 2019 – Jun 2022
Harry Twomey · WILDCARD · J/70 3events 0 wins together · 0 podiums · 3 events · 0 of 19 races won Beat 43% of the fleet together(±0 vs. without) · best 19th · Jul 2023 – May 2025
Jeremy Smart · McFly · J/111 3events 3 wins together · 3 podiums · 3 events · 12 of 24 races won Beat 100% of the fleet together(+74 vs. without) · best 1st · Jul 2019 – Jun 2022
Darragh O'Sullivan · McFly · J/111 2events 2 wins together · 2 podiums · 2 events · 7 of 17 races won Beat 100% of the fleet together · best 1st · Jul 2019 – Jun 2021
Amy Prime · McFly · J/111 2events 2 wins together · 2 podiums · 2 events · 7 of 17 races won Beat 100% of the fleet together · best 1st · Jul 2019 – Jun 2021
Darragh O Sullivan · Spica · Etchells 1events 0 wins together · 0 podiums · 1 events · 0 of 8 races won Beat 36% of the fleet together · best 15th · Sep 2021 – Sep 2021

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

Rating history

— Helm rating, full-size sailing · - - Crew rating, full-size sailing

Event history · 14

Date	Event	Boat	Class	Role	Finish
23 May 2025	J/70 Cup - Event 2	WILDCARD	J/70	Crew	19th / 38
5 Sep 2023	2023 J/70 European Championship	WILDCARD	J/70	Other	25th / 48
14 Jul 2023	J/70 Italian Circuit - Event 3 Malcesine	WILDCARD	J/70	Crew	36th / 49
16 Jun 2023	Morgan Cup Race	BARAKA GP	IRC handicap	Crew	87th / 91
15 Sep 2022	RTYC Annual Regatta	Antix	Cape 31	Crew	13th / 17
30 Jun 2022	2022 Key Yachting - J Cup	McFly	J/111	Bow	1st / 6
17 Sep 2021	2021 Etchells National and British Open Championship	Spica	Etchells	Other	15th / 23
24 Jun 2021	2021 Landsail Tyres J Cup	McFly	J/111	Bow	1st / 7
18 Jul 2019	2019 Landsail Tyres J-Cup	McFly	J/111	Headsail Trimmer	1st / 7
28 Aug 2017	2017 49er & 49erFX World Championship	Cian BYRNE	49er	Skipper	73rd / 81
30 Jul 2017	Europeans 49er, 49erFX & Nacra17	cian BYRNE	49er	Skipper	75th / 94
21 Jun 2017	Kieler Woche 2017	cian BYRNE	49er	Skipper	30th / 69
23 May 2017	Delta Lloyd Regatta 2017	cian BYRNE	49er	Skipper	26th / 31
24 May 2016	Delta Lloyd Regatta 2016	cian BYRNE	49er	Skipper	29th / 27

Ratings

Class	Rating	Rank	Impact
49er Helm	-189 provisional	#423 band 361–430	−8.1
Full-size sailing Helm	-155 provisional	#77351 band 62289–83508	—
Full-size sailing Crew	302 provisional	#7688 band 3910–14237	—
J/111 Crew	354 provisional	#24 band 12–67	—
J/70 Crew	39 provisional	#1835 band 941–2673	—

2 more classes, not yet ranked

Cape 31 · Crew · 8 races, 1 event · rating -20
Etchells · Crew · 8 races, 1 event · rating 2

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	5 events	0 wins	beats 19%
As crew	9 events	3 wins	beats 55%

Positions: Bow (2) · Headsail Trimmer (1)

How they race

Closer	+10 pts	last race of an event vs. the rest
Comeback	−14 pts	the race after a bottom-half finish
Consistency	30%	100% = the same result every event
Big fleets	25%	of the fleet beaten
Small fleets	100%	of the fleet beaten

Head to head

Helm	Races	W–L
Nils Carstensen	64	8–54
Lars van Stekelenborg	64	18–43
Tim Fischer	64	7–55
Yannick Lefèbvre	64	7–53
Levi Slap	63	12–43
Uberto Crivelli Visconti	62	4–56
Przemek Filipowicz	52	9–41
Scipio Houtman	52	13–36
Cas van Dongen	52	22–26
Jorge Lima	52	8–44
Jacopo Plazzi	52	7–43
Kévin Fischer	52	9–43

Most-beaten opponent: Paul Griffiths (22–2).

Seasons

Year	Events	Wins	Beat
2025	1	0	51%
2023	3	0	27%
2022	2	1	63%
2021	2	1	68%
2019	1	1	100%
2017	4	0	26%
2016	1	0	-8%

Boats

Cian BYRNE · 49er · 5 events · 2016–2017
WILDCARD · J/70 · 3 events · 2023–2025
McFly · J/111 · 3 events · 2019–2022
BARAKA GP · IRC handicap · 1 events · 2023
Antix · Cape 31 · 1 events · 2022
Spica · Etchells · 1 events · 2021

Where they race

Unknown · 6 events
Malcesine · 2 events
Hamble, Hampshire, UK · 2 events
Cowes, Isle of Wight, UK · 1 events
Royal Thames Yacht Club · 1 events
Portland, UK · 1 events

Is this you?

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

Helm rating, Full-size sailing: -155, #77,351.Crew rating, Full-size sailing: 302, #7,688. Compiled from public results; not an official ranking.