International Thiersee Triathlon: Course, Elevation & Route Profile

Course & Elevation

The swim is 1.5 kilometres in two laps of the Thiersee, the mountain lake at a good 610 metres whose lido holds transition, start and finish. The starts are in the afternoon: men at 13:30, women at 14:00.

The bike lap heads west from the lido through Vorderthiersee and on along the valley road via Tal, Schmiedtal, Ascherdorf and Landl to Wacht, then on the Tiroler Straße towards the Ursprungpass to the turnaround at kilometre 10 at a good 820 metres. The roughly 210 metres of climbing per outward leg are unevenly spread: a short steep ramp right out of transition, a second at kilometre 6 and, from kilometre 7.3, the continuous ascent over 2.8 kilometres at a good five per cent. The return is the same road downhill, with a short counter-rise before the lake. Only 15 per cent of the lap counts as flat at all; for the 40 kilometres it is ridden twice.

The run is then entirely different ground: four clockwise laps of the Thiersee, 2.5 kilometres each, on gravel, asphalt and firm meadow that alternate several times per lap. The elevation band is about eleven metres, but only a good 36 per cent of the course is genuinely level. Short undulations recur at the same points every lap. After each lap the route passes through the start and finish area, with the finish in front of the Musikpavillon. The Tri & Run Thiersee club stages the race for the eighth time as an international event; drafting is banned with a twelve-metre zone.

Pacing Strategy

Two swim laps in a mountain lake give you a natural intermediate mark: use the first to find your line and your breathing and swim the second evenly. Keep something in reserve while doing so, because the bike opens immediately with a short steep ramp that pulls your heart rate straight back up.

The second pass of the climb from bike kilometre 27.3 decides the race. Ten kilometres of ascent with two short steep ramps and a 2.8-kilometre closing rise sit clearly above sustainable output at race effort for most people, and the mistake almost always happens on the first pass. Ride the first lap's climb conservatively, seated and at steady cadence, so that the second produces the same time. The ten kilometres of descent afterwards are the day's only genuine recovery: use them to drink and loosen off, not to win time back.

The trap is the run course, because after the hill it looks harmless. Four identical laps with constant changes of surface and short undulations mean no rhythm ever settles across several kilometres and your split fluctuates independently of your effort. Run the first two laps deliberately to effort, note the softer sections, and put your lift on lap three; in a championship field that is where it is decided.

Training plan for International Thiersee Triathlon: 12-week build

For the Kurztriathlon in Thiersee, expect roughly two and a quarter to three hours depending on your level. The demand is markedly variable: a steady open-water swim, a bike leg made of two long climbing and two long descending phases, and a run that has almost no elevation yet is genuinely level for less than half its length.

The second climb on the bike and the third run lap decide it. The climb asks for the ability to ride ten to fifteen minutes above sustainable output and then repeat it; the third run lap is where you find out whether the pace chosen out of transition was realistic. With the race carrying the Tyrolean championship, the front of the field is tight and both show up directly in the result.

The conditions are alpine and afternoon. The Thiersee sits at a good 610 metres and stays a mountain lake even in August, so the wetsuit question should be settled beforehand; the bike course climbs in open valley terrain to a good 820 metres and is ridden without drafting; and starts at 13:30 and 14:00 in mid-August put the entire race in the warmest phase of the day, after a long morning of waiting.

Three priorities follow. First, hill intervals on the bike of ten to fifteen minutes on gradients around five per cent, ridden in pairs with a long descent between them, because that exact sequence comes up twice. Second, brick runs on mixed ground of gravel, asphalt and meadow rather than pure road, because the run course switches several times per lap. Third, open-water work in cool water over 1,500 continuous metres with buoy sighting, plus a food and drink plan built for an afternoon start.