I ran Vancouver Sun Run for the 5th time this year. This is 10k race in Vancouver, roughly 30k-60k people run this race. My official time is 50min:17sec. This isn’t my personal record (48:17), but given I didn’t train for running this is fairly decent result (probably my 3rd best 10k run).

I just vibe-coded this Vancouver Sun Run X-Ray app with two tabs. The Race Map simulates all 45,013 finishers moving along the official course. You can drag the time slider and watch the people spread out. Upload your GPX and your position appears as an orange dot. The secon tab Public Results digs into the real data corral effects, finish time distributions by age group, city breakdowns.

The race data comes from a community-parsed CSV of the official Sportstats results.

I ran the race, got home, opened Claude Code, and had a working app before dinner. That’s the pattern with vibe coding: you start with curiosity, not a spec.

Live: vancouversunrunxray.streamlit.app

GitHub: github.com/andriybuday/vancouversunrunxray

Before next Sun Run I can probably vibe-code something more viral and vibrant so that people on the run can play with it and have run. At very least I have this in mind for my 2027 run (which I already signed up for).