JAM SESSION — GBR 6909R
Model: J/109
Updated
JAM SESSION (GBR 6909R) is a J/109 designed by Rod Johnstone and built by J/Boats. She has been racing since 2026. Against a typical J/109 she is slower downwind.
Racing record
Races with at least six boats1
Race start
0
Wins
0%
Podiums
68
Race Edge
J/109: 79
548.8s/mile
Rating 2026
Race Edge by wind strength: how much she delivers beyond her rating, compared with the other boats in her class.
Length
10.76 m
35′ 4″
Beam
3.52 m
Draft
2.14 m
Displacement
5.1 t
Sail area
68 m²
On the podium
Where JAM SESSION 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 JAM SESSION on the start line, named as the organisers publish them.
- 50 Mijl Shorthanded20264
Is there a race missing?Send us the results and we will add them here.
Report a regattaWho she races against
The boats JAM SESSION meets most often on the start line. The bar shows how those meetings ended, on corrected time.
Other competitors (18)
Met too few times for a figure.
LÄLLEKÖNIG (J/99, 1 meeting), TEAM HEINER 4 (J/109, 1 meeting), JIBE (J/109, 1 meeting), MAJIC (J/109, 1 meeting), SENNA (Luffe 3.6, 1 meeting), BLACKBIRD (First 35 (Farr), 1 meeting), INSPIRIT (Dehler 39 (Judel/Vrolijk), 1 meeting), MOSHULU (Xp 38, 1 meeting), THE FLOW (Elan 380, 1 meeting), GOTCHA2 (JOD 35, 1 meeting), FLYER (Dehler 39 (Judel/Vrolijk), 1 meeting), BATFISH (JPK 10.30, 1 meeting), ONE & ONLY (Sun Fast 3600, 1 meeting), MOANA (J/122, 1 meeting), LUX (X4.3, 1 meeting), ELIXER (X-46, 1 meeting), NIMROD (JPK 39, 1 meeting), XANTHO (Xp 44, 1 meeting)
How JAM SESSION compares with a typical J/109
Her main 2026 measurements against the middle of the fleet: one boat per sail number, the latest full-crew configuration with spinnaker, J/109s measured since 2025.
Above the line she is quicker than a typical J/109; 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/109 on the broad reach.
Speed at every angle
JAM SESSION in blue, a typical J/109 dashed.
JAM SESSION in blue, a typical J/109 dashed; green marks the closest useful beat and the deepest run worth sailing.
Other J/109s racing
Every sister ship with results on TackRegatta, the most recently raced first.
More about the J/109
Speed at every angle, Race Edge, the race record of the whole fleet and how the boats are set up.
Something wrong in JAM SESSION's data? A regatta, a result, her design or her sail number.
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