Twelve months but only a few with snow: how to stagger volume, strength and shooting across the year without one block eating the next.
A biathlon year is not a training plan but an order of operations: first the engine, then strength, then technique on snow, finally racing — and the intensity distribution stays the same in every one of those blocks. That is the shortest version of everything that follows.
The backbone comes from training research in endurance sport: world-class athletes across rowing, cross-country skiing, marathon and cycling train around 80 percent below the first lactate threshold and 20 percent above the second [1]. Expressed as a distribution: 70 to 80 percent low intensity (65 to 80 percent of maximum heart rate), 5 to 10 percent moderate (80 to 88 percent), 15 to 20 percent high (88 to 100 percent) [1]. In elite cross-country skiers the low-intensity share was 80 percent [1].
Important context: that is a distribution orientation from endurance sport and cross-country skiing, not biathlon-specific proof [1]. Polarised interventions have been carried out on biathletes as well [1] — but the annual structure remains a construction from documented building blocks, not a tested formula.
Why the order matters at all: pure skiing time explains 84 percent of the time differences between athletes [6]. And the arithmetic behind it is merciless — in the Swedish cross-country national team, 75 percent of all injuries were overuse injuries [4]. In biathlon, an annual plan is a performance tool and a prevention tool in equal parts.
Set your main race and work backwards: race phase, snow phase, autumn transition, summer block. Anything you still want to shift, you shift in summer — not three weeks before the start.
The order is the plan. Everything else is detail.
The bulk of cross-country training consists of long, low-intensity roller-ski sessions [2]. That is exactly what summer is: plenty of time, little intensity, maximum attention to technique.
Bear in mind that roller skiing is not an even load. Sessions in varying terrain produce strong terrain-dependent fluctuations in power output and heart rate [2] — your planned base session can turn into a moderate one unintentionally on a rolling loop.
And because physiological values are sub-technique specific — in double poling, maximal oxygen uptake is around 12 percent lower than in diagonal stride [2] — summer should deliberately include work in all sub-techniques, not only the most comfortable one.
The documented core: upper-body muscular endurance training improves performance after 50 minutes of double poling, and upper-body sprint-interval training raises strength and endurance capacity [3]. Heavy strength training up to around 12 repetition maximum is the common model but shows effect sizes from large to trivial [3].
In practice: the strength emphasis belongs in summer and early autumn, while technique sessions are not yet under competitive pressure. In the race phase, strength is reduced to maintenance — not to zero.
The most common planning error is "switching over" in autumn and suddenly training a lot of hard work. The distribution stays: 70 to 80 percent low, 5 to 10 percent moderate, 15 to 20 percent high [1].
What changes between blocks is not the share but the content of the hard sessions: intervals on roller skis in summer, race structure in autumn, combination sessions with shooting in winter.
Shooting education needs repetitions, and repetitions need time — you have both in summer, not in January. Summer biathlon combines shooting with cross-country running or roller skiing and makes that possible year-round [8]; beginner and training formats run on an air rifle at 10 metres and club offerings [8].
That way engine and shooting hand develop in parallel, instead of one of them having to be caught up in winter.
75 percent of injuries in the cross-country squad were overuse injuries [4]; typical patterns are shin splints, Achilles tendon problems and lower back pain [4]. Unloading weeks are therefore part of the plan, not a disruption to it.
That fits the recommendation to periodise carbohydrate intake according to training demand — with 6 to 10 grams per kilogram of body weight per day for moderate to high-intensity endurance training [5]. As a guideline orientation, not a prescription; it is intended to enable maximal adaptation and reduce the risk of low energy availability [5].
Roller-ski blocks are the most load-intensive part of the year and at the same time the part with the highest fall risk: helmet on, no descents you cannot roll out under control, avoid public traffic wherever possible.
For all shooting blocks nothing changes: shooting happens exclusively at supervised ranges, the rifle is carried and transported unloaded and secured, the muzzle stays controlled at all times, and loading happens only on the mat under supervision.
The nutrition figures in this guide are a guideline orientation from endurance sport, not an individual prescription [5]. Anyone concerned with weight, energy availability or recurring complaints should clarify that medically and with a nutrition professional — not through a training plan.
Keep a single annual curve instead of a training plan with a hundred lines: enter just two numbers per week — total hours and the percentage in the low-intensity zone.
The target value is known: around 80 percent low intensity across the year [1]. If your curve dips in autumn, you have "switched over" without noticing — the classic route into the overuse that accounted for 75 percent of all injuries in the cross-country squad [4].
Those two numbers per week tell you more about your year than any single session.
Backwards from the target race and in this order: summer block with volume and technique, autumn with race structure, snow phase, race phase. The intensity distribution stays constant across all blocks — around 70 to 80 percent low, 5 to 10 percent moderate and 15 to 20 percent high intensity [1]. What changes is the content of the hard sessions, not their share.
Mainly in summer and early autumn, while technique sessions are not yet under competitive pressure. What is documented is upper-body muscular endurance training, which improves performance after 50 minutes of double poling, and upper-body sprint intervals [3]. Heavy strength training up to around 12 repetition maximum is common but shows effects from large to trivial [3].
Through roller skiing and summer biathlon. Summer biathlon combines shooting with cross-country running or roller skiing, and training as well as beginner formats run on an air rifle at 10 metres and club offerings [8]. The bulk of cross-country training consists of long, low-intensity roller-ski sessions anyway [2].
Because the terrain dictates the load. Sessions in varying terrain produce strong terrain-dependent fluctuations in power output and heart rate [2]. On top of that, double poling uphill submaximally is markedly more expensive than leg-driven techniques [2]. Deliberately choose flat routes for base sessions.
As orientation, endurance guidelines name 6 to 10 grams per kilogram of body weight per day for moderate to high-intensity training, and recommend periodising intake according to training demand to enable adaptation and reduce the risk of low energy availability [5]. Those are general guidelines, not a biathlon-specific study and not an individual prescription — clarify questions about energy availability medically.
Peak Performance: Energy, Recovery and Prevention Across the Biathlon Season