Class CSemi-displacementPerformance

J/88

J BOATS · Rod Johnstone · 2013

Updated

The J/88 is a 8.96 m semi-displacement racing yacht designed by Rod Johnstone and built by J BOATS, first launched in 2013. It races in Class C. Across the measured fleet it goes better than its own numbers promise, ahead of 94% of the designs it races against.

J/88 - Rod Johnstone - J BOATSP 11.22 mLOA 8.96 m
Race Edge94Proven in racing

Goes better than its own measurements promise, and does it better than 94% of the boats it races against.

11th of 159 in its class.

Under 10 kn
94
10–16 kn
90
Over 16 kn
94

Updated — First Race Edge for this design. Enough boats of this design have now been measured on the current scale to rank it. It is strongest in light and heavy air.

This design has been found in real race results — 16 starts across 10 events — not only in measurement files.

Length

8.96 m

29′ 5″

Beam

2.85 m

Draft

1.97 m

Displacement

2.5 t

Sail area

49 m²

On the podium

Where a J/88 finishes when she goes racing.

On the podium

12%

of 16 starts by 5 boats

Wins

0%

Wins0%0
Seconds12%2
Thirds0%0
Off the podium88%14

Read from 16 starts by 5 boats between 2021 and 2026, counting races with six boats or more.

Recent regattas

The latest events where a J/88 was on the start line, named as the organisers publish them.

  • GermanyNordseewoche2026
  • FinlandEmäsalon lenkki2026
  • FinlandEmsalö Runt2026
  • Germany76. Glückstadt Regatta2026
  • World championshipORC DH World Championship2025

Raced one we are missing?

Report a regatta

Round the buoys, or offshore

A short windward-leeward and a night at sea ask different things of a boat. Here is how this one does in each.

Round the buoys

—

Not enough data yet: 2 races of 10 NM or less carry a published distance.

Offshore & coastal

—

Not enough data yet: 2 races over 10 NM carry a published distance.

Who she races against

The designs a J/88 actually lines up with, most often first. The bar shows how those meetings ended.

This design aheadRival ahead
Italia 9.980%ahead in 0 of 12 meetings, 11 races
X-33255%ahead in 6 of 11 meetings, 10 races
First 36.70%ahead in 0 of 8 meetings, 5 races

Also met, too few times for a figure:

Xp 44 (7 meetings), Corby 29 (7 meetings), Dehler 39 (Judel/Vrolijk) (7 meetings), Melges 20 (7 meetings), Sun Fast 3600 (7 meetings), X-41 (6 meetings), Sun Fast 36 (6 meetings), Luffe 43 (4 meetings), IMX 38 (3 meetings), J/99 (3 meetings), J/80 (2 meetings), Salona 34 (2 meetings), X-35 (3 meetings), Grand Soleil 40 (Paperini) (2 meetings), First 40.7 (2 meetings), Millenium 40 (4 meetings), X-3 (2 meetings), Arya 415 (2 meetings), Sera 33 (2 meetings), J/105 (1 meeting), Salona 38 (1 meeting), Grand Soleil 39 (Jézéquel) (1 meeting), Corby 25 (1 meeting), Bonin 31 (1 meeting), Dufour 34 (1 meeting), Melges 24 (1 meeting), Farr 400 (1 meeting), Farr 49 (1 meeting), Grand Soleil 43 (Carkeek) (1 meeting), J/35 (1 meeting), Tripp 40 (1 meeting), Elan 40 (1 meeting), Swan 46 (1 meeting), Contessa 35 (1 meeting), JPK 39 (1 meeting), X-34 (3 meetings), Dehler 36 (Judel/Vrolijk) (1 meeting)

Some of the boats it races against

How the J/88 has fared against each of them, boat against boat on corrected time. Ordered by how often the two meet, not by who wins.

J/88 vs Italia 9.98ahead 0% of 12 head-to-heads
J/88 vs X-332ahead 55% of 11 head-to-heads
J/88 vs First 36.7ahead 0% of 8 head-to-heads

Speed at every angle

The shape of this design's speed, drawn from the measured fleet. Pick a wind and watch it stretch.

3691230°60°90°120°150°WIND11.2

Upwind VMG

5.08

37°

Beam reach

8.28

90°

Broad reach

11.22

135°

Downwind VMG

8.78

170°

Speed in knots at 20 knots of true wind. Green marks the angles that pay: the closest useful beat and the deepest run worth sailing.

Where it wins and where it pays

Every boat is judged against its own measurements — length, weight, sail area. The quicker those say it should be, the more it has to deliver just to break even. Going fast is not enough: it has to go faster than its own numbers promised.

It needs pressure to show what it can do. On a windy coastal course it is in its element; on a light-air windward-leeward it has to be sailed well to hold on.

Where it gains

Its best ground is on a broad reach in a strong breeze, where it outruns what it looks like on paper, and by a margin worth having. It holds that advantage running deep as well, so the gain is not down to one leg of the course.

Where it pays

It falls short upwind in a strong breeze, giving away time it never gets back. That is a hull that will lift and run given enough breeze.

Above the line it delivers more than promised and gains on the fleet. Below, it falls short. Move the wind: plenty of boats sit on one side in the light and the other when it blows.

True wind
Upwind+0.11 kn
Beam reach-0.14 kn
Broad reach+0.28 kn
Downwind+0.24 kn

Full width is 2.0 kn either way.

At 10 knots this design makes back more than its rating asks on the broad reach.

How fast is a J/88

Boat speed in knots, by true wind angle and wind strength.

Angle6 kn10 kn14 kn20 kn
Beat VMG3.464.715.005.08
52°5.246.656.947.07
60°5.506.827.147.32
75°5.716.967.467.79
90°5.837.047.678.28
110°5.977.428.149.05
120°5.867.498.459.82
135°5.237.188.4811.22
150°4.416.497.6910.14
Run VMG3.825.626.678.78

How they are set up

The range each sail spans across the fleet.

Mainsail27 m² – 28 m²
Headsail21 m² – 23 m²
Gennaker75 m² – 98 m²

Nearly all carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 500 kg.

Rigging

J/88 rig and sail dimensions

A J/88 carries 11.22 m of mainsail hoist on a 3.66 m boom, a forestay 11.70 m above the deck and a 5.55 m bowsprit. Typical figures across the 22 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP11.22 m11.19 – 11.23
Boom lengthE3.66 m3.65 – 3.67
Forestay heightIG11.70 m11.59 – 11.80
Fore triangle baseJ3.43 m3.40 – 3.45
Spinnaker hoistISP12.68 m12.61 – 12.72
BowspritTPS5.55 m5.36 – 5.75
Boom above deckBAS1.28 m1.27 – 1.30

Sails

Mainsail27.3 m²26.8 – 27.9
Headsail21.2 m²20.6 – 22.9
Gennaker93.6 m²75.3 – 97.8

The spinnaker spreads widest of all — 75 to 98 m² depending on bowsprit and set-up. Before ordering a sail, read the figure on your own measurement record rather than the typical one for the design.