Fehmarn Triathlon: Course, Elevation & Route Profile

Course & Elevation

The swim is two laps of a triangle course in the Baltic off Burgtiefe, with a beach run between them. The organiser sets a 50-minute swim cut-off for this race and three hours for swim and bike combined; if the open-water swim is cancelled, the race is run as a duathlon over 5.5 – 43 – 10 kilometres.

The bike first covers a good three kilometres on the Strandallee cycle path to Sahrensdorf. Two short, fully closed spurs branch off a junction there onto the L209, one to Meeschendorf and one towards Vitzdorf; that combination is ridden five times, which adds up to ten 180-degree turns. The elevation band runs from sea level to around 17 metres, over 70 per cent of the course counts as genuinely flat, and the analysis finds no climb across 43 kilometres. The run is four laps of the 1.25-kilometre promenade loop past the IFA hotel, FehMare and Café Sorgenfrei, eight passes of the same stretch.

The character of the day comes from the island itself. Southern Fehmarn is open farmland without cover, the promenade sits by the water with no shade and no windbreak, and in September the Baltic does not always lie still. Since every distance uses the same promenade with different turnarounds, the field passes itself in both directions continuously, and the finish area is crossed on every lap. Entry is open from 18 with a race licence or a day licence.

Pacing Strategy

Two swim triangles with a beach run between them give you a natural intermediate mark: use the first lap to find your line and your breathing, and swim the second evenly. In the open Baltic, sighting matters more than speed here, because a poorly held line on a triangle course costs a full minute faster than you would think.

The bike decides the race, not because of its profile but because of its structure. Ten 180-degree turns mean ten decelerations and rebuilds across 43 kilometres; tearing away out of the saddle each time leaves you with an anaerobic load that shows up on the run. Brake early, take them tight, rebuild seated. And read the two directions of the spurs separately: into the wind your output stays the same while your speed drops, and that is not a fitness problem.

The trap is the run course. Four laps with eight passes of the same stretch, constant oncoming traffic from every other distance, and a finish arch you run past three times before you are allowed through; all of it invites pace changes driven by your surroundings rather than your plan. Run the first two laps deliberately to effort and put your lift on the third.

Training plan for Fehmarn Triathlon: 12-week build

For the Olympic distance on Fehmarn, expect roughly two and a half to three and a half hours depending on your level. The demand is steadily aerobic but not continuous: ten bike turns and eight run passes cut the race into short sections without the terrain supplying any recovery.

The last two passes of the shuttle and the third run lap decide it. On the bike that is where you learn whether power stayed flat despite the turns; on the run, whether the pace was realistically chosen. And because the cut-offs are strict (50 minutes for the swim, three hours to the end of the bike), you should know your own open-water swim time realistically.

The conditions are the real opponent. Mid-September in the Baltic means cool water, swell and current rather than a calm buoy course, and southern Fehmarn is farmland without cover in which the wind stands unchecked. The promenade offers no shade. You can prepare for that with open-water sessions in choppy conditions, a wetsuit routine including a fast strip, and rides taken deliberately into wind on open ground.

The training priorities follow. Ride threshold blocks of 15 to 25 minutes in the aero position with hard braking and rebuilds built in, for instance 10 times 30 seconds from low speed. Run tempo sessions at target ten-kilometre pace on flat, firm ground plus brick runs straight off those rides. And swim 1,500 continuous metres regularly, at least one of those sessions in open water sighting on distant landmarks.