Bergsee Triathlon Ratscher: Course, Route Profile & Map

Course & Elevation

The swim goes off at 10:30 in the Bergsee Ratscher, the reservoir south of Schleusingen. That there is a swim at all cannot be taken for granted: the 2025 edition was cancelled because the lake had been drained for work on the dam, and this 37th edition was moved forward from September to August because the reservoir would not have been refilled by then.

The bike leg opens with a 0.9 kilometre approach out of transition and then covers a 12.7 kilometre double out-and-back three times, west past Rappelsdorf and south along the reservoir, between roughly 356 and 439 metres. Each lap holds three climbs: first 400 metres at 5.3 per cent, then the long drag of 1.43 kilometres at 4.1 per cent with peaks of 8.4 per cent, and immediately afterwards a short wall of 570 metres averaging 6.7 per cent and touching 13.3. Only 38 per cent of the course is flat and about three per cent each is steep up and steep down; this is a course of constant gear changes.

The run happens entirely inside the narrow shoreline corridor on the north-western bank. From transition it is 370 metres past the campsite to the entry point, then four times through the same lap: out along the lakeside service road to the second turnaround, back to a hairpin just short of the junction, out along the parallel inland track to the first turnaround and back again. Across ten kilometres you cover that same strip of shore sixteen times.

Pacing Strategy

Swim the 1,500 metres in the reservoir under control and without a starting sprint. The bike course begins to roll after only 900 metres, and on a route that is just 38 per cent flat there is nowhere to let an elevated heart rate come back down.

The race is decided in the second half of each bike lap. The 1.43 kilometre climb and the short wall of up to 13.3 per cent follow one another almost immediately, and you ride that combination three times. Treat it as a single effort of around six minutes rather than two separate climbs, and hold something back for the third pass: take the wall out of the saddle on lap one and you will pay for it twice on lap three.

The main trap is the run, because of how it is built. Four laps with four passes of the same corridor each mean sixteen turnarounds and hairpins across ten kilometres; every deceleration and rebuild costs, and repeating the same two hundred metres over and over makes the distance feel longer than the clock says. Run to kilometre splits rather than to feel. Then there is the time of day: with a 10:30 start in early August the run lands in the early afternoon, down in the basin of the reservoir with no altitude to take the edge off.

Training plan for Bergsee Triathlon Ratscher: 12-week build

The Olympic distance at Ratscher takes roughly two and a half to three and a quarter hours depending on your level. The demand is markedly variable: the bike asks for nine climbs of 40 seconds to four minutes, with descents and turnarounds between them, and only a good third of the course is flat.

What decides it is the repeatability of those climb pairs. The question is not whether you can get up 1.43 kilometres at four per cent, but whether the third repetition still shows the same output as the first, and whether you can still run ten kilometres afterwards.

The training emphasis therefore belongs on hill repeats inside a race-pace context rather than on pure endurance: 3 sets of 3 efforts consisting of a four-minute climb at four to five per cent followed straight away by a 60 to 90 second ramp at seven to ten per cent, with only the descent as recovery. That structure mirrors the race sequence exactly. Follow every second session with a 20 to 30 minute brick run.

For the run, two things can be trained deliberately: turnarounds and monotony. Build in runs with a 180-degree turn every 400 to 600 metres, and do at least one long session on a short loop so the repetition does not come as a surprise on race day. Add open-water work in reservoir water, which in August is markedly cooler than a bathing lake, plus heat adaptation for an early-afternoon run.