TrainingPeaks has been the default endurance training platform for the best part of two decades. In July 2026, Garmin acquired it — and for a lot of coaches and athletes that was the nudge to ask a question they'd been putting off: is this still the right home for my training data, my athletes and my money?
An acquisition isn't a verdict. TrainingPeaks is a mature, deep product and it isn't going anywhere this year. But it's a fair moment to look around — and the reasons people switch usually come down to one of four things: ownership (who controls the platform now), price (especially as a roster grows), how zones are set (measured versus a percentage of an estimate), or simply wanting a simpler, cheaper tool for a solo athlete.
This is an honest roundup. We make one of the platforms below (LaChart), and we'll say plainly where it's the wrong choice and where something else wins. A comparison with no losses in it is an advert, and everyone can smell one.
How to choose (before the list)
The platforms below aren't all the same kind of thing. Sort them by what you actually need:
- Analysis only, solo: you upload rides and want charts, fitness/fatigue/form and peak curves — no roster, no planning. → intervals.icu, Golden Cheetah.
- Structured training plans, solo: you want the app to hand you the workouts and adapt them. → TrainerRoad, Xert.
- Coaching a roster: a calendar, structured builder, athletes, planned-vs-completed, push to watch. → LaChart, TrainingPeaks, Final Surge, Coachbox.
- Zones from a real lactate test: you want LT1/LT2 measured, not derived from a % of FTP. → LaChart, Coachbox.
- Deep power-duration modelling: you live in the data. → WKO5.
The best TrainingPeaks alternatives in 2026
1. LaChart — the lactate-first platform
Full disclosure: this is us. LaChart does the coaching fundamentals — calendar, structured workout builder, load and form (CTL/ATL/TSB), peak curves, lap and stream analysis, an annual plan, and structured workouts pushed to a Garmin watch — with one difference underneath it all: your zones come off a real lactate curve. LT1 and LT2 are detected by several methods (log-log, IAT, OBLA 2.0–3.5, LTP1/LTP2, D-max) with the measured points drawn on top, and every zone, TSS figure and time-in-zone chart is anchored to those two measured numbers.
- Best for: coaches and athletes who test lactate, or who want measured zones rather than a percentage of an estimated FTP.
- Price: €14.99/month for a coach with unlimited athletes, €6.99/month for a solo athlete; lactate testing is unmetered and the calculators are free without an account.
- The catch: we're young and small next to TrainingPeaks — fewer integrations, no training-plan marketplace, and no WKO-class modelling.
If you're specifically weighing the two, we wrote a line-by-line LaChart vs TrainingPeaks comparison and a fuller TrainingPeaks alternative page — both include the rows where TrainingPeaks wins.
2. intervals.icu — the best free analytics
intervals.icu has quietly become the analyst's favourite. It syncs from Strava or Garmin, computes fitness, fatigue and form, draws power/pace curves, and offers a genuinely deep set of charts — for free (donation supported). For a data-curious solo athlete it replaces most of what they used TrainingPeaks for.
- Best for: solo athletes who want serious analysis at no cost.
- The catch: it's an analysis tool, not a coaching platform — the roster management, calendar-first planning and polish of a paid product aren't the focus, and zones are still power/HR-derived rather than from a lactate test.
3. WKO5 — for the modelling obsessive
WKO5 (from TrainingPeaks' own stable, but a separate desktop product) is the deepest power-duration modelling tool in the sport — mFTP, the power-duration curve, phenotype, iLevels and more. It's not a calendar or a coaching hub; it's where you go to interrogate the data.
- Best for: coaches and athletes whose practice centres on power-duration modelling.
- The catch: a desktop app with a learning curve, and it still lives in the TrainingPeaks ecosystem you may be trying to leave.
4. Golden Cheetah — free and open source
Golden Cheetah is a free, open-source desktop application with a long pedigree and a remarkable depth of analysis, including its own modelling metrics. Nothing leaves your machine unless you want it to.
- Best for: tinkerers who want total control, offline, for nothing.
- The catch: desktop-only, a steeper interface, and no roster/coaching or watch-push workflow.
5. TrainerRoad — structured plans that adapt
TrainerRoad is a different animal: it hands a solo athlete a structured, adaptive plan and adjusts it based on how sessions go. It's about being told what to do, well, rather than analysing what you did.
- Best for: self-coached athletes who want the app to program them.
- The catch: it's not a coaching platform for managing other athletes, and it's power/estimate-driven rather than lactate-based.
6. Final Surge — the runner-friendly coaching log
Final Surge is a clean coaching-and-logging platform popular with runners and coaches, with a calendar, workout library and athlete management, and a usable free tier.
- Best for: run coaches and athletes who want a straightforward log and plan without paying TrainingPeaks money.
- The catch: lighter on cycling power analytics and, again, no lactate testing.
7. Coachbox — lactate coaching, metered
Coachbox is the closest in spirit to LaChart: a Belgian endurance coaching platform with a built-in lactate module and a training-load score developed with Ghent University. If lactate matters to you, it's a serious option.
- Best for: coaches who want lactate plus a mature, well-supported platform.
- The catch: it meters tests (free allowance, then a per-test charge) and prices in tiers by athlete count. We cover the differences on our Coachbox alternative page.
At a glance
| Platform | Best for | Lactate-based zones | Rough cost |
|---|---|---|---|
| LaChart | Lactate-first coaching & solo | Yes (core) | €6.99–14.99/mo |
| intervals.icu | Free solo analytics | No | Free / donation |
| WKO5 | Power-duration modelling | No | Paid (desktop) |
| Golden Cheetah | Free open-source analysis | No | Free |
| TrainerRoad | Adaptive plans, solo | No | Subscription |
| Final Surge | Runner coaching & logging | No | Free tier + paid |
| Coachbox | Lactate coaching (metered) | Yes (metered) | Tiered by athletes |
Competitor pricing and features are a September 2026 snapshot and change often — check each platform's own site before deciding.
The honest bottom line
If you want the deepest analysis for free, use intervals.icu. If you live in power-duration models, keep WKO5. If you want to be programmed, look at TrainerRoad. And if the reason you're leaving is that you want your training zones to come from a measured lactate test rather than a percentage of a guess — with unlimited athletes at one flat price — that's exactly the gap LaChart was built for. Start with the free lactate curve calculator, no account needed, and see the difference measured zones make.
