Runalyze

Runalyze is a manufacturer-independent analysis platform for endurance athletes that imports activities from watches, apps and FIT files and turns them into training metrics. It estimates effective VO2max, calculates training load from heart rate, produces race predictions for distances from 3k to ultra-marathon, and tracks equipment such as running shoes and bicycle parts. The platform covers runners, cyclists, swimmers and triathletes, with a calendar view, performance curves for power, heart rate and pace, climb categorization, and visual statistics including trend analysis, boxplots and histograms.

Core features include the Shape Plot, which combines fitness (CTL), fatigue (ATL) and form (TSB) with an acute-to-chronic workload ratio, plus health tracking for sleep and resting pulse. Premium adds best segments, quality session analysis, moving average mileage, streaks, tiles counter, colored tracks, progression graphs, poster generation, map layers and historic HRV values. Premium users can also connect Claude, ChatGPT, Mistral or other MCP clients through the Runalyze MCP server for read-only access to training data.

Runalyze offers a free tier covering common features, a Premium plan with additional analysis and visualization tools, and a Supporter plan that removes advertising and provides early access to beta features. Plans are billed monthly or yearly, with subscriptions cancellable before the next payment cycle.