When it rained for Senna, it poured for his rivals
On this day in 1985, at a wet and cold Estoril, Ayrton Senna clinched the first of his... The post When it rained for Senna, it poured for his rivals appeared first on F1i.com.

<p>On this day in 1985, at a wet and cold Estoril, Ayrton Senna clinched the first of his...</p> <p>The post <a href="https://f1i.com/images/266024-estoril-1985-senna-scores-first-win.html">When it rained for Senna, it poured for his rivals</a> appeared first on <a href="https://f1i.com">F1i.com</a>.</p>
Trusted Sources
F1i
Related Regulations
Hover over badges for quick summaries, or scroll down for full official text and simplified explanations.
Full Regulation Text
Article 9.1
Tyre Specifications
Chapter: Chapter IX - Tyres
In Simple Terms
Pirelli is F1's sole tyre supplier. Each driver gets a fixed allocation per weekend: typically 13 sets of slicks (across soft, medium, hard), plus wet weather tyres. Teams must strategically use their allocation across practice, qualifying, and the race.
- Pirelli is sole official supplier
- Fixed allocation per weekend
- Three dry compounds: soft, medium, hard
- Intermediate and wet also provided
Official FIA Text
Only tyres supplied by the official tyre supplier may be used. During a race weekend, each driver is allocated a specified number of dry weather tyre sets comprising soft, medium and hard compounds, plus intermediate and wet weather tyres.
Trending Articles

F1 star involved as sex escort scandal uncovered
11 minutes ago
Breaking Barriers: Women in F1 Testing
24 minutes ago
Ferrari Clarifies Strategy for 2026 Car Dev
36 minutes ago
F1 Grid Mirrors NBA Elite
about 1 hour ago
FIA Shelves Ambitious 2026 F1 Regulation Overhaul
about 1 hour ago
Comments
No comments yet. Be the first!