Isenbüttel, Germany · 0.75 / 20 / 5 km
Race day Sun 14 Jun 2026
Watch out: Heat in 2025 and rain in 2026 show wide weather variation. All 3
Held back by conditions (2.2) and swim (3.2).
Best for
Every score is out of 5, and 5 is always the better end.
Bottom 43%. Ahead of 42% of the 244 races.
moderate5 sources behind this score: racer reviews and race reports. Moderate evidence is 4 to 7 separate sources.
Latest or next race
Sun 14 Jun 2026
Official race site(triathlon-gifhorn.de, opens in a new tab)Moku Coach builds your plan around race day in June and this course.
Start free trialOverall score 3.3 out of 5
5 reviews and race reports
Tone of the reviews and race reports
5 reviews
Raced 2026 · DAS TriDream: Tankumsee 2026
Found the swim easy to sight and the bike rewarding. Water near 17 °C (63 °F), rain and nearby camping shaped the day; plans to return.
Covers Swim, Bike, Run, Conditions, Stay and travel
Read on dastridream.de (DAS TriDream: Tankumsee 2026, opens in a new tab)Raced 2026 · DAS TriDream: Fliegen um den Tankumsee
Calls this a season highlight despite rain and bike wind. The run includes some gradients and the athlete was pleased with an improved finish.
Covers Bike, Run, Conditions
Read on dastridream.de (DAS TriDream: Fliegen um den Tankumsee, opens in a new tab)Raced 2025 · DAS TriDream: TST 25
Enjoyed a successful finish and course support. Describes warm water, hot running, a strong bike headwind after the turnaround and another rider ignoring passing rules.
Covers Swim, Bike, Run, Conditions
Read on dastridream.de (DAS TriDream: TST 25, opens in a new tab)Raced 2025 · Team GGU-Software: Tankumsee 2025
Swim contact settled after the land exit. Heat made the bike and run difficult; one teammate did not finish and the author used run water to cool down.
Covers Swim, Bike, Run, Conditions
Read on team.ggu-software.com (Team GGU-Software: Tankumsee 2025, opens in a new tab)Pick a score, then tell the next athlete about the course, conditions and logistics.
Open a category for its ratings and the evidence behind them.
Good. How racers feel about it, how well it is run, and how it treats a first timer. Counts for 30% of the overall score.
Toughness: Tough
Several athletes enjoy the event and plan to return despite difficult weather. · Medium confidence
Clear collection windows and parking instructions support a well-liked regional event. · Medium confidence
Short lake swimming and one venue help, but wind and heat can add difficulty. · Low confidence
Comparable athlete timing evidence is limited. · Low confidence
Good. Wetsuit odds, water temperature, calm, and the experience of the start. Counts for 16% of the overall score.
A 2026 athlete wore a wetsuit; a 2025 athlete raced without one. · Medium confidence
Reports range from 17 °C (63 °F) in 2026 to about 24 °C (75 °F) in 2025. · Medium confidence
Race-day water conditions are incompletely documented. · Low confidence
A 2026 racer found sighting straightforward; busier waves produced contact. · Medium confidence
The lake swim is short, but contact and water temperature vary. · Low confidence
Athlete accounts do not establish the amount of water support. · Low confidence
Good. Road surface, closures, scenery and wind. Counts for 18% of the overall score.
The available reports do not establish road quality throughout. · Low confidence
Traffic rules still apply; the organizer does not explicitly promise full closure. · Low confidence
The available reports give little detail about bike scenery. · Low confidence
Multiple reports describe strong bike headwinds after the turnaround. · Medium confidence
Athletes report fast outbound riding, slowed by return headwinds. · Medium confidence
Athletes describe quick out-and-back cycling without major climbing. · Low confidence
An out-and-back road course includes designated no-passing sections. · Medium confidence
Very good. Crowds, aid stations, conditions underfoot and scenery. Counts for 13% of the overall score.
Crowd levels beyond the club supporters are incompletely documented. · Low confidence
Athletes used run water for cooling, and the organizer lists course and finish aid. · Medium confidence
The available reports give limited detail about run scenery. · Low confidence
Run gradients and hot editions can make the short final leg demanding. · Medium confidence
Athletes describe a modest canal-side rise rather than a completely flat run. · Medium confidence
Below par. Air temperature, how predictable the weather is, setting, and spectating. Counts for 13% of the overall score.
The reported 2025 heat was difficult; 2026 brought much cooler rain. · Medium confidence
Accounts contrast severe heat in 2025 with rain and cool water in 2026. · Medium confidence
Venue impressions are based on a small set of athlete accounts. · Low confidence
Spectator access beyond the finish is incompletely documented. · Low confidence
A reliable venue altitude has not been verified. · Low confidence
Very good. Hotels, walkability, getting there, and the town around the race. Counts for 10% of the overall score.
Race-week room availability is not established. · Low confidence
Race-week accommodation prices are not established. · Low confidence
The organizer places parking, registration and transition at the lake. · Medium confidence
The reports do not establish airport transfer logistics. · Low confidence
Race-morning collection and a single lake base suit day trips. · Medium confidence
The reports provide limited town and restaurant information. · Low confidence
Tankumsee
Overall score 3.3Close on score and conditions
Compare with Isenbüttel
Overall score 3.3Close on score and conditions
Compare with Isenbüttel
Overall score 3.3Close on score and conditions
Compare with IsenbüttelPages we used for facts and ratings. See how we rate.
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