Hansons Calculator

The Hansons Marathon Method is a structured marathon training approach developed by Kevin and Keith Hanson, coaches of the Hansons-Brooks Distance Project in Michigan. The method challenges conventional marathon wisdom by capping the long run at 16 miles (approximately 26 km), relying instead on cumulative fatigue to simulate the physical demands of the final miles of a race.

Rather than building toward a single exhausting 20-mile run, Hansons training spreads stress across six days of running each week. The philosophy is that arriving at your long run already tired — from the quality workouts earlier in the week — more accurately replicates the physiological state you will be in when you reach mile 16 of a real marathon. This is captured in their often-quoted principle: "Race the last 16 miles, not the first 16."

The program is organized around three categories of runs: Easy runs (recovery days), Something of Substance (SOS) workouts (the three quality sessions), and the long run. Each category has a precise pace range tied directly to your marathon goal time. The Hansons calculator on this page automates those pace calculations from your goal and your experience level, giving you a ready-to-use training pace card and sample weekly structure.

The Hansons method became widely known after the book Hansons Marathon Method was published and after runners associated with the program — including Desi Linden and others from the Hansons-Brooks team — competed successfully at the elite level. The system appeals to athletes who want a high-mileage, science-backed plan that does not depend on heroic long-run distances.

Every training pace in the Hansons system derives from a single anchor: your marathon goal pace per kilometer. Once you enter your goal time in hours, minutes, and seconds, the calculator converts that time to total seconds, divides by the marathon distance of 42.195 km, and then applies a multiplier to each pace zone.

The multipliers encode the physiological purpose of each run type. Easy runs are slow enough to promote recovery and aerobic base without adding meaningful fatigue. Tempo runs sit near your lactate threshold, training your body to clear lactic acid efficiently. Strength intervals develop race-specific speed and neuromuscular power. Speed repeats at 5 K effort sharpen turnover and VO2max.

Understanding what each zone demands physiologically helps you execute workouts correctly and avoid the most common training mistake: running easy days too fast.

Easy Pace (× 1.20 of goal pace)

Easy runs are the backbone of Hansons training. Performed 20% slower than goal marathon pace, they develop aerobic capacity, promote glycogen restoration, and help the body absorb the stress from the prior quality day. Many runners make the mistake of running their easy days at marathon pace or faster — in Hansons training, this defeats the purpose. For a 3:30 marathoner, easy pace works out to approximately 5:59 per kilometer.

Long Run Pace (× 1.10 of goal pace)

The Hansons long run is deliberately slower than marathon pace but faster than easy pace. At 10% slower than goal pace, it provides enough aerobic stimulus to build endurance without generating the excessive recovery debt that comes from all-out long runs. The long run is capped at 26 km (16 miles) — not because distance does not matter, but because the cumulative weekly load already provides equivalent stress.

Marathon Pace (× 1.00)

Marathon-pace work teaches your body to perform efficiently at your exact goal effort. It appears in some strength workouts and during the goal-race simulation segments of the program. Knowing your marathon pace per kilometer precisely is essential for proper execution.

Tempo Pace (× 0.93 of goal pace)

Tempo runs in Hansons training target the lactate threshold — the point at which lactate accumulates faster than it can be cleared. Running at 93% of goal pace (roughly 10 K race effort) for sustained efforts of 8 to 10 km teaches the body to buffer lactic acid, a critical adaptation for marathon performance late in the race.

Strength Pace (× 0.88 of goal pace)

Strength workouts bridge the gap between pure speed and marathon-pace endurance. At 88% of goal pace (between 5 K and 10 K effort), these intervals are typically run as repeat miles or repeat 3-mile segments with short recovery jogs. They develop the muscular and metabolic power needed to sustain goal pace under fatigue.

Speed Pace (× 0.82 of goal pace)

Speed sessions are the shortest and sharpest quality workouts in the Hansons plan. Performed at approximately 5 K race effort — 82% of goal pace — they are structured as 400-meter or 600-meter repeats with equal-distance recovery jogs. Speed work improves running economy, VO2max, and neuromuscular efficiency.

The Hansons calculator adapts the weekly schedule to three experience levels: Beginner, Intermediate, and Advanced. The core architecture remains the same across all levels — the differences lie in peak weekly volume, number of quality days, and the presence or absence of a rest day.

All three levels cap the long run at 26 km, reinforcing the central Hansons philosophy that cumulative weekly volume is a more effective stressor than a single extreme long effort. Intermediate and advanced runners run six days per week with no scheduled rest day, relying on the easy-day pace to serve as active recovery.

The concept of cumulative fatigue is what sets the Hansons Marathon Method apart from virtually every other marathon training plan on the market. Most traditional plans build toward a 20- to 22-mile long run as the capstone workout, believing that running that distance in training is necessary to prepare the body for the 26.2-mile race. Hansons coaches argue that this logic misunderstands the nature of marathon fatigue.

When you run a 20-mile training run on fresh legs after a light week, the effort required does not accurately simulate what miles 16 through 26 feel like in an actual marathon. At mile 16 of a race, you have already covered 16 miles on race-depleted glycogen stores with accumulated muscular fatigue. Training for that experience requires arriving at your long run already tired — which is exactly what the Hansons schedule produces.

By running quality workouts on Tuesday, Thursday, and Saturday before the Sunday long run, the Hansons program ensures that the athlete enters every long run with measurable accumulated fatigue. The long run then functions as a simulation of the late-race experience, even though it is only 26 km in length. This is why the coaches say you should race the last 16 miles, not the first 16 — the training teaches you what it feels like to hold goal pace when you are already tired.

The cumulative fatigue approach also distributes physiological stress more evenly across the training week. Rather than creating a boom-bust cycle of one extremely long effort followed by days of forced recovery, Hansons training maintains a consistent moderate-to-high stress level that builds aerobic fitness progressively without the injury risk associated with single very-long runs.

For runners accustomed to Higdon, Pfitzinger, or other plans that feature 20-mile runs, the transition to Hansons requires a mindset shift: trust that the 26-km cap is deliberate, and that the total weekly volume of 65 to 95 km is doing the work that a 32-km long run would attempt to accomplish in a single session.

Using this Hansons calculator is straightforward. Enter your marathon goal time in hours, minutes, and seconds. You can type directly into the fields or use the preset buttons for common goal times such as sub-3:00, 3:30, 4:00, or 4:30. Then select your experience level — Beginner, Intermediate, or Advanced — based on your training history and current weekly mileage.

The calculator immediately displays your goal marathon pace per kilometer, all six training pace zones, a sample week layout with distances and descriptions for each day, and your weekly volume targets including peak kilometers per week and maximum long run distance.

A few practical tips for applying your results:

• Your easy pace should feel genuinely comfortable — you should be able to hold a full conversation without gasping.
• Treat your tempo and strength paces as firm targets, not approximations. These workouts are only effective when run at the prescribed effort.
• The speed pace should feel hard but controlled — not an all-out sprint, but close to your 5 K race effort.
• If your goal time is not yet realistic based on recent race results, consider adjusting your goal before building a full training block around it. Use a recent 5 K or 10 K time to project a realistic marathon target.

The calculator is designed to give you the precision you need to follow the Hansons plan faithfully. Many runners who struggle with Hansons do so because they run their easy days too fast or their quality days too slow — using exact pace targets from this tool helps eliminate that guesswork.