JACKKNIFE — GBR 8859R
Model: J/125
Updated
JACKKNIFE (GBR 8859R) is a J/125 designed by Rod Johnstone and built by J/Boats. She has been racing since 2025. She sails with a smaller sail plan than most J/125s. Against a typical J/125 she is slower upwind in light air and downwind.
Racing record
Races with at least six boats1
Race start
0
Wins
0%
Podiums
91
Race Edge
475.0s/mile
Rating 2025
Race Edge by wind strength: how much she delivers beyond her rating, compared with the other boats in her class.
Not verified. On planing hulls this score has no match in the race results we hold. Read it as what the measurements say, not as a ranking.
Length
12.53 m
41′ 1″
Beam
3.21 m
Draft
2.48 m
Displacement
4.2 t
Sail area
97 m²
On the podium
Where JACKKNIFE finishes when she goes racing.
0
Wins
0
Seconds
0
Thirds
1
Starts
Not enough races yet for a percentage — these are the counts so far. We keep collecting results, so this will fill in.
Regattas
Every regatta we found with JACKKNIFE on the start line, named as the organisers publish them.
Rolex Middle Sea Race202540
Is there a race missing?Send us the results and we will add them here.
Report a regattaRound the buoys, or offshore
A short windward-leeward and a night at sea ask different things of a boat.
Round the buoys
—
Not enough data yet: no races of 10 NM or less carry a published distance.
Offshore & coastal
—
Not enough data yet: 1 race over 10 NM carry a published distance.
Who she races against
The boats JACKKNIFE meets most often on the start line. The bar shows how those meetings ended, on corrected time.
Other competitors (58)
Met too few times for a figure.
FINAL FINAL (Pac 52, 1 meeting), WHISPER (Judel/vrolijk 62, 1 meeting), ZEPHYR (Sun Fast 3300, 1 meeting), MILOU (Sun Fast 3200, 1 meeting), DIAVOLINA (JPK 10.30, 1 meeting), AROBAS² (Irc 52, 1 meeting), ZEN (TP 52 (Carkeek), 1 meeting), SCRICCA (Comet 38 (Vallicelli), 1 meeting), PNEUMA (JPK 10.30, 1 meeting), DUFFY (Dufour 34, 1 meeting), KIBOKO TATU (Arcona 380, 1 meeting), MON ILE (First 40, 1 meeting), BLACK PEARL (Botin 56, 1 meeting), CALYPSO 3.0 (Farr 30, 1 meeting), JAN (J/109, 1 meeting), BORA FAST (Sun Fast 3600, 1 meeting), KARPO (Elan 450, 1 meeting), GEISHA (IMX 40, 1 meeting), QUO (Eleva 42, 1 meeting), VARUNA (Cookson 50, 1 meeting), VARUNA (Ker 56, 1 meeting), MR. J (J/111, 1 meeting), ELUSIVE II (First 45 (Briand), 1 meeting), BLUE MOON (TP 52 (Judel/Vrolijk), 1 meeting), ADRIGOLE II (X-41, 1 meeting), NOLA (Mat 122, 1 meeting), ARS UNA (Adria, 1 meeting), ABOAT TIME (Swan 42, 1 meeting), ANTELOPE (Xp 44, 1 meeting), TONTON (Dufour 44, 1 meeting), DARKWOOD (J/121, 1 meeting), HOBART (Dehler 41 (Judel/Vrolijk), 1 meeting), BEWILD (Swan 42, 1 meeting), GAZELLE (Xp 44, 1 meeting), TOK SAILING (Mat 11.80, 1 meeting), HYDRA (DK 46, 1 meeting), DIMM (First 45 (Farr), 1 meeting), UPSCALE (Neo 400, 1 meeting), ELLE (Swan 56, 1 meeting), ARTIE III (HH 42, 1 meeting), LION’S STORY (Swan 42, 1 meeting), MORPHEUS (Sydney 43, 1 meeting), FAVORIT (Farr 45, 1 meeting), ANEMOS (Pogo 36, 1 meeting), SAGOLA (Farr 45, 1 meeting), VETARA (Pogo 36, 1 meeting), ALEMARO (Neo 430, 1 meeting), WINDRAUSCH (Pogo 36, 1 meeting), FLY (X-482, 1 meeting), NEOJIVARO (Neo 430, 1 meeting), OTRA VEZ (Ice 52, 1 meeting), LUNZ AM MEER (Swan 651, 1 meeting), BLACK PEARL (Pogo 40, 1 meeting), SALPARE (Swan 66, 1 meeting), BURI (Elan 333, 1 meeting), KAZKA (Dufour 56, 1 meeting), BLUE HORIZON (Delphia 47, 1 meeting), CAIAROSSA (Shipman 72, 1 meeting)
How JACKKNIFE compares with a typical J/125
Her main 2025 measurements against the middle of the fleet: one boat per sail number, the latest full-crew configuration with spinnaker, J/125s measured since 2025.
Above the line she is quicker than a typical J/125; below, slower. Move the wind: plenty of boats sit on one side in the light and the other when it blows.
Full width is 0.4 kn either way.
At 10 knots she gives away time to a typical J/125 on the upwind.
Speed at every angle
JACKKNIFE in blue, a typical J/125 dashed.
JACKKNIFE in blue, a typical J/125 dashed; green marks the closest useful beat and the deepest run worth sailing.
More about the J/125
Speed at every angle, Race Edge, the race record of the whole fleet and how the boats are set up.
Something wrong in JACKKNIFE's data? A regatta, a result, her design or her sail number.
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