F1 cuts grand prix maximum distance by 15km in 2027 rules overhaul
F1 cuts grand prix maximum distance by 15km in 2027 rules overhaul
Formula 1 has confirmed a major tweak to its sporting regulations, reducing the maximum distance of a grand prix by 15km ahead of the 2027 season.
From 2027, the longest a grand prix can run will drop from 305km (189.5 miles) to 290km (180.2 miles). The move comes alongside a broader package of changes designed to help officials complete races that are delayed or disrupted by bad weather or accidents.
New 'hard stop time' replaces three-hour limit
Grands prix are currently limited to a maximum of two hours of actual racing, but when interruptions occur the clock can run to a three-hour overall limit. That fixed ceiling will be scrapped in favour of a new “hard stop time” that varies from circuit to circuit depending on local conditions.
A statement from governing body the FIA explained the rationale: “These changes were introduced to ensure that the spectators have the best possible chance to enjoy a full race if disruptions occur.”
Under the new system, night races will be afforded greater flexibility to run later, while daytime events with an earlier sunset will have a tighter cutoff. The variable limit is intended to give race directors more room to see disrupted events through to a finish.
Why the distance was trimmed
The reduction in race length is tied to Formula 1’s evolving power-unit formula. The ratio of internal combustion to electrical power is shifting from 53-47 this year to 58-42 next year, before settling at 60-40 in 2028. That means the cars will burn more fuel.
The issue came to light when it emerged that some teams wanted to carry their chassis over into next year to save money. Because the fuel tank sits within the chassis, its size could not be altered — leaving those teams at risk of being unable to complete grands prix with their existing tanks. Shortening the maximum distance resolves that concern.
Free practice gets more flexibility
The F1 Commission — the rule-making body made up of the teams, the FIA and commercial rights holder F1 — also agreed to introduce “greater flexibility to extend free practice sessions should they be interrupted”.
Currently, the clock does not stop during practice sessions when a red flag halts running after an incident, unlike in qualifying and races where the competition clock is suspended. The new approach brings added leniency to interrupted practice sessions.