Functional notes
6 essays published on running, cycling, swimming, triathlon, HYROX and the Splits methodology.
Read the blog →ORGANIC METHOD
Train with purpose, plan each step, enjoy the journey.
Three levels, functional plans for every sport. Start where you are, not where you wish you were.
02 — LEVELS
02 / 07Three starting points — find the one that fits you best.
- 01Start at this level
New
For people starting from zero or coming back after a long break. A wider plan, no pace pressure, focus on building base patiently.
- 02Start at this level
Beginner
For starting out or returning after a break. Suggested paces, common distances, no custom setup.
- 03Start at this level
Intermediate
You have a base. Edit kilometers and tune paces. Your current routine finds form.
03 — YOUR RACE PLAN
03 / 07Simulate a race plan for your level
1 / 5
04 — DISCIPLINES06 disciplines
HYROX
Hyrox
Running and station splits.
TRI
Triathlon
Sprint, Olympic, 70.3, Ironman.
RUN
Running
Calculate your pace, project times for 5K, 10K, half and full marathon, and compare splits. From 400 m sprints to ultras.
ROW
Rowing
Pace per 500m, projections from 500m to 10km. For indoor rowers and open water.
SWIM
Swimming
Pace per 100m, projections from 400m to open water. From pool sprints to long-distance swims.
BIKE
Cycling
Average speed, pace per km, and projections for 10K to 200 km. From sportive rides to gran fondos.
05 — OUR WAY
A functional body first. The marathon comes later.
Before any marathon plan, we like to think a body that can actually run it — without breaking down along the way — makes a difference. It sounds subtle. It isn't.
Often, signing up for a race means downloading a 16-week plan. We've watched that approach lead to nagging pains, injuries and more than a few dropouts. It looks like the price of admission for the sport. It isn't.
At Splits, we'd suggest building two things at once: general aerobic capacity, and functional strength to protect your joints. Specific plans for a particular distance come last. There's no formula, but there is a form. The marathon doesn't always have to be the goal — it can be the consequence.
Let's find your level. The calculators are just the first meeting point. They help you see where you are. The rest comes later.
- You lead, we walk with you
- Progressive levels, never forced
- Health first, the clock can wait
Start by enjoying your level. The marathon comes later.
06 — COMING SOON
Splits is a work in progress — building toward a more organic way to train.
Splits grows in stages. Each one resolves a layer of organic training.
Splits membership
Save your times, track your progress between races, download plans tailored to your sport and level, and keep your journey going.
07 — FREQUENTLY ASKED
Questions worth answering.
Why don't you just give me a marathon plan?
Because we've watched that path end in injury and dropouts somewhere between week 6 and week 8. We'd rather build aerobic capacity and functional strength first. When the body is ready, the marathon shows up — and stays.
I've been running for years. Is this for me?
Yes — at Intermediate or Advanced. We don't assume you're starting from zero. Every body has its own starting point. If you've been running for years, edit the distances and times you already know. The calculator adapts to you, not the other way around.
What makes this different from other pace calculators?
Other calculators give you a number. We like to give you context. The calculators are the doorway to a system of levels that will grow into full functional plans by sport. Today you calculate times. Soon, you plan whole seasons.
Why all the focus on functional base?
Most running marketing pushes hurry: "beat your time", "finish the challenge in 12 weeks". Taking the time to build a base isn't slow — it's strategy. Rushing it usually ends in burnout. Patience is the most underrated skill in the sport.
Is it free?
Today, yes. The calculators and the levels are free, and they'll stay that way. The account and saved plans land in the third stage and will run on a sustainable model that we're still figuring out. No pressure to announce it before it's ready.
The plan starts with the first question.Start my plan