Building the Global Heatmap

700 million activities, 7.7 trillion data points create the ultimate map…

Convert a Universal (FAT) Framework to an XCFramework

Strava had a pre-compiled third party dependency…

Rebuilding the Segment Leaderboards Infrastructure — Part 1: Background

Over the past year, the Strava platform team has been working to rebuild the segment leaderboards system. This is the first in a series of four blog posts detailing that process. This first post aims to give…

A Richer Activity, Part 1: Flexible Storage for More Data

Setting the Stage

The Boring Option

Migrating Segment Efforts Storage at Strava.

Improving Auto-Pause for Everyone

Every time an athlete uploads an activity to Strava, the server analyzes the activity and calculates…

Improving Grade Adjusted Pace

Grade Adjusted Pace (GAP) estimates the equivalent flat land pace for a given running pace on hilly terrain. Running uphill requires more effort than running on a flat grade, so GAP adjusts pace to be faster than the actual running pace. Similarly, GAP is slower than actual…

Rebuilding the Segment Leaderboards Infrastructure — Part 3: Design of the New System