Mat 101
MAT · Mark Mills · 2011
Updated
The Mat 101 is a 10.14 m displacement racing yacht designed by Mark Mills and built by MAT, first launched in 2011. It races in Class C. Across the measured fleet it goes better than its own numbers promise, ahead of 92% of the designs it races against. It is at its best in light air and struggles to hold that once it blows.
Goes better than its own measurements promise, and does it better than 92% of the boats it races against.
13th of 159 in its class.
This design has been found in real race results — 133 starts across 19 events — not only in measurement files.
Length
10.14 m
33′ 3″
Beam
3.30 m
Draft
2.09 m
Displacement
4.6 t
Sail area
65 m²
On the podium
Where a Mat 101 finishes when she goes racing.
On the podium
11%
of 133 starts by 12 boats
Wins
4%
Read from 133 starts by 12 boats between 2015 and 2026, counting races with six boats or more.
Recent regattas
The latest events where a Mat 101 was on the start line, named as the organisers publish them.
66. Yil Donanma Kupasi2026- 25. Bosphorus Cup2026
Klaipėda ORC European Championship2026- EAYK-TAYK Dogu Ege Yat Sampiyonasi2026
- The Presidential 7th International Yacht Races Çanakkale Cup2026
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
2%
of these races end on the podium
Offshore & coastal
20%
of these races end on the podium
Better the longer it gets. Boats that settle into a groove and hold it gain ground once the course stops turning.
Who she races against
The designs a Mat 101 actually lines up with, most often first. The bar shows how those meetings ended.
Some of the boats it races against
How the Mat 101 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
5.36
37°
Beam reach
8.35
90°
Broad reach
9.87
135°
Downwind VMG
8.12
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 design earns its keep off the wind. A course with long free legs suits it better than a windward-leeward.
Where it gains
Its best ground is off the wind when it blows, where it goes better than its measurements say it should, and by a margin worth having. It holds that advantage on the run as well, so the gain is not down to one leg of the course.
Where it pays
It falls short across the wind once the breeze fills, giving away time it never gets back.
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 0.4 kn either way.
At 10 knots this design makes back more than its rating asks on the downwind.
How fast is a Mat 101
Boat speed in knots, by true wind angle and wind strength.
| Angle | 6 kn | 10 kn | 14 kn | 20 kn |
|---|---|---|---|---|
| Beat VMG | 3.51 | 4.83 | 5.22 | 5.36 |
| 52° | 5.39 | 6.87 | 7.24 | 7.39 |
| 60° | 5.68 | 7.03 | 7.42 | 7.61 |
| 75° | 5.88 | 7.16 | 7.64 | 7.98 |
| 90° | 5.95 | 7.31 | 7.71 | 8.35 |
| 110° | 6.07 | 7.54 | 8.21 | 8.91 |
| 120° | 5.93 | 7.49 | 8.33 | 9.47 |
| 135° | 5.31 | 7.19 | 8.07 | 9.87 |
| 150° | 4.47 | 6.59 | 7.62 | 9.01 |
| Run VMG | 3.88 | 5.73 | 6.94 | 8.12 |
How they are set up
The range each sail spans across the fleet.
Nearly all carry a folding propeller. Crew weight is declared around 680 kg.
Rigging
Mat 101 rig and sail dimensions
A Mat 101 carries 13.30 m of mainsail hoist on a 4.55 m boom, a forestay 13.68 m above the deck and a 4.64 m bowsprit. Typical figures across the 12 boats measured under the current VPP, with the range each one spans.
Rig
Sails
The spinnaker spreads widest of all — 69 to 116 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.