BORSIG Half Marathon Training Plan & Preparation

Course & Elevation

The route consists of four near-identical loops of about 5.3 kilometres, run entirely on asphalt through the streets of Berlin-Reinickendorf in the north-west of the city. For 2026 the course was redrawn because of the U6 underground construction and now runs as a pure road circuit. The elevation profile is exceptionally even across the full 21 kilometres: the course stays within a narrow band around 40 metres, with only about 104 metres of total ascent and a virtually neutral balance of two metres over the distance.

There are no steep ramps at all; a good fifth of the route rises gently, another fifth descends slightly, and the rest is flat. Because the start and finish are passed four times, runners keep returning to the same crowd, which gives the race a dense, festive atmosphere despite its lap-based character. The event has a long tradition and reaches its 27th edition in 2026; it is supported by more than a hundred volunteers and a mixed field of ambitious club runners and recreational athletes.

With its flat, repeatable profile it is a classic personal-best course.

Pacing Strategy

On this flat circuit the race is decided not by a single climb but by how evenly you hold your pace across all four loops. With almost 60 percent of the route flat and the few rises gentle, choose a race pace from the start that you can realistically sustain to the finish, and keep it nearly constant lap after lap. The decisive phase comes in the third and fourth loops, where growing fatigue meets the mental monotony of an already-familiar course, and anyone who started too fast loses noticeable time here.

The biggest danger is the deceptively easy feel of the first lap. Because the flat profile barely slows you, it is easy to open too quickly, and each pass through the start and finish tempts you into further surges as the crowd cheers. Hold back deliberately for the first two loops, use the minimal downhill stretches to stay relaxed, and save your reserve for the final five kilometres, where the evenly run race pays off.

12-Week Preparation

Effort duration: ambitious age-group runners will be out on this half marathon distance for roughly 1:20 to 2:15 hours depending on fitness. The demand is a steady, sustained aerobic effort around threshold: with no meaningful climbs and no steep sections, anaerobic spikes are almost entirely absent, and the race instead tests the ability to hold a high pace evenly over a long time. What decides the race is not individual course features but the last two loops, where pace has to be maintained despite fatigue and the repetitiveness of the circuit.

Preparation should therefore emphasise: long steady runs at planned race pace to build pace resilience and running economy over the full distance; threshold and tempo runs that anchor race pace and lift the lactate threshold; and longer sessions finished at goal pace in a fatigued state to rehearse the decisive closing phase. Because the course is flat, specific hill training plays almost no role; the available training time is better spent on pace resilience and aerobic endurance.

It also helps to practise running monotonous loops mentally, so that the repetition of the course does not cause pace drops on race day.