JPK 10.30
JPK Composites · Jacques Valer · 2019
Updated
The JPK 10.30 is a 10.31 m semi-displacement racing yacht designed by Jacques Valer and built by JPK Composites, first launched in 2019. It races in Class C. Across the measured fleet it goes better than its own numbers promise, ahead of 76% of the designs it races against. It comes alive as the breeze builds, and gives time away in the light.
Goes better than its own measurements promise, and does it better than 76% of the boats it races against.
39th of 159 in its class.
This design has been found in real race results — 53 starts across 20 events — not only in measurement files.
Length
10.31 m
33′ 10″
Beam
3.23 m
Draft
1.99 m
Displacement
3.9 t
Sail area
59 m²
On the podium
Where a JPK 10.30 finishes when she goes racing.
On the podium
36%
of 53 starts by 12 boats
Wins
13%
Read from 53 starts by 12 boats between 2021 and 2026, counting races with six boats or more.
Recent regattas
The latest events where a JPK 10.30 was on the start line, named as the organisers publish them.
Aegean 6002026- ORC DH World Championship2026
Blue Week2026
Island Offshore - Race to the Arctic2026- Norgesmesterskap Doublehanded/Seilmakeren Doublehanded2026
Raced one we are missing?
Report a regattaRound 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: 9 races of 10 NM or less carry a published distance.
Offshore & coastal
29%
of these races end on the podium
Who she races against
The designs a JPK 10.30 actually lines up with, most often first. The bar shows how those meetings ended.
Also met, too few times for a figure:
First 35 (Farr) (7 meetings), X-46 (5 meetings), X-55 (5 meetings), Linjett 33 (5 meetings), Dehler 32 (5 meetings), TP 52 (Farr) (4 meetings), Arya 415 (4 meetings), Elan 310 (4 meetings), Arcona 380 (7 meetings), Dufour 40 (7 meetings)
Some of the boats it races against
How the JPK 10.30 has fared against each of them, boat against boat on corrected time. Ordered by how often the two meet, not by who wins.
Speed at every angle
The shape of this design's speed, drawn from the measured fleet. Pick a wind and watch it stretch.
Upwind VMG
5.29
39°
Beam reach
8.80
90°
Broad reach
10.77
135°
Downwind VMG
8.27
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.
This is a boat that wants breeze. Give it a fresh day and long legs and it delivers more than it promised; in a drifter it is working uphill.
Where it gains
Its best ground is on a broad reach when it blows, 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
There is no condition where it falls away badly, which is worth something over a season of mixed weather.
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.
Full width is 1.4 kn either way.
At 10 knots this design makes back more than its rating asks on the broad reach.
How fast is a JPK 10.30
Boat speed in knots, by true wind angle and wind strength.
| Angle | 6 kn | 10 kn | 14 kn | 20 kn |
|---|---|---|---|---|
| Beat VMG | 3.34 | 4.67 | 5.18 | 5.29 |
| 52° | 5.11 | 6.79 | 7.34 | 7.51 |
| 60° | 5.38 | 7.00 | 7.56 | 7.81 |
| 75° | 5.62 | 7.21 | 7.83 | 8.34 |
| 90° | 5.82 | 7.46 | 8.13 | 8.80 |
| 110° | 5.90 | 7.68 | 8.64 | 9.75 |
| 120° | 5.76 | 7.61 | 8.75 | 10.43 |
| 135° | 5.13 | 7.25 | 8.37 | 10.77 |
| 150° | 4.32 | 6.47 | 7.71 | 9.42 |
| Run VMG | 3.74 | 5.61 | 6.79 | 8.27 |
How they are set up
The range each sail spans across the fleet.
Nearly all carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 490 kg.
Rigging
JPK 10.30 rig and sail dimensions
A JPK 10.30 carries 12.45 m of mainsail hoist on a 4.34 m boom, a forestay 12.79 m above the deck and a 5.38 m bowsprit. Typical figures across the 22 boats measured under the current VPP, with the range each one spans.
Rig
Sails
The spinnaker spreads widest of all — 75 to 112 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.