---
title: "Andrea Chelleris, 17, Climbs 9a and Onsights 8b+"
url: "https://climbingbrowser.com/news/1507"
date: "2026-09-08"
source: "8a.nu"
---

# Andrea Chelleris, 17, Climbs 9a and Onsights 8b+

- **Source:** 8a.nu
- **Original story:** https://www.8a.nu/news/andrea-chelleris-17-does-9a-and-onsights-8b+-a8sfi

## Summary

At just 17 years old, Andrea Chelleris has made headlines by climbing a 9a and onsighting an 8b+. This young climber is certainly one to watch as they continue to push the boundaries of the sport.


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Source: [ClimbingBrowser](https://climbingbrowser.com) — free evidence-based climbing training intelligence. Personal AI coaching on WhatsApp: [ClimbClaw](https://climbingbrowser.com/coach).