Mercedes Leads F1 Constructors at 79% — But a Rule Change Could Reshape the Championship in June

Two races into the 2026 Formula 1 season, Mercedes has produced two 1-2 finishes. George Russell won in Australia. Kimi Antonelli — 19 years old, in his first full F1 season — won in China, becoming the youngest pole-sitter in the sport's history before converting it to victory. Mercedes sits at 98 points in the Constructors' Championship, with Ferrari second at 67 and McLaren a distant third at 18. AutoHebdo Prediction markets have priced the obvious conclusion: Mercedes at 79% to win the 2026 Constructors' Championship. The number is probably right. It might also be slightly too high, for a reason that doesn't appear in the race results.

This isn't just a fast car — it's a regulatory architecture story

The gap between Mercedes and the rest of the field is unusually easy to explain. Under the new 2026 regulations, electrical energy now constitutes roughly 50% of a Formula 1 car's output, meaning how a team harvests and deploys energy around a lap matters as much as raw engine power. Autosport Mercedes spent years designing their power unit around this specific framework. They also appear to have found a legal interpretation of the compression ratio rules that extracted more power than rivals — in racing conditions, Mercedes' engine is understood to achieve a compression ratio of approximately 18:1, against the stated 16:1 limit, which is measured at ambient temperature when the engine is cold. F1 Oversteer Every other engine manufacturer on the grid — Ferrari, Red Bull-Ford, Audi, Honda — formed what effectively became a political alliance and lobbied the FIA to close this interpretation. Sky Sports The FIA agreed. The fix is coming. But not yet.

The McLaren evidence

The clearest proof that Mercedes' advantage is architectural rather than superficial is McLaren. McLaren uses the identical Mercedes power unit but finished the Australian GP far behind the works team — prompting team principal Andrea Stella to describe the process of learning to run the new energy systems as learning "a new language." Read Motorsport Williams, another Mercedes customer, faces the same problem.

Toto Wolff's response was that Mercedes has "honoured all obligations" to customer teams and that the gap reflects a steep development curve, not preferential treatment — but he acknowledged that Mercedes will not openly share the tricks behind its advantage. Read Motorsport Customer teams must figure it out themselves. Two races in, none of them have. This matters for the constructors market because it means McLaren, despite running a Mercedes engine, is not a third competitor for the title. They're a development project. The realistic fight is Mercedes versus Ferrari.

Ferrari's position — and the June wildcard

Ferrari's 67 points represents a 31-point deficit after just two rounds, with Lewis Hamilton and Charles Leclerc separated by just one point in the standings — Hamilton secured his first Ferrari podium in China. RacingNews365 Ferrari is the only team that has kept Mercedes in sight. They are not out of this championship, but they need something to change. That something is scheduled for June 1. The FIA confirmed that from June 1, the compression ratio will be measured both at ambient temperature and at 130 degrees Celsius — the operating condition where Mercedes is believed to hold its advantage. Sky Sports Seven races will have been completed by that point. If Mercedes has banked a 50+ point constructors lead by Monaco, the rule change becomes academic. If the gap is closer to 30-35 points when the regulations tighten, Ferrari has a live championship. The market's 21% for non-Mercedes outcomes is essentially pricing the probability of that second scenario — a tight enough gap entering the June rule change that Ferrari can mount a second-half charge.

The verdict

At 79%, the market is saying Mercedes is the heavy favorite with a meaningful but real path for Ferrari. That's probably the right framing. Motorsport analysts note that McLaren, despite being a Mercedes customer, has not yet understood how to manage the power unit's energy recharge — and will not take long to figure out, at which point they become a dangerous rival. Motorsport Ferrari meanwhile has both drivers competitive and Hamilton motivated in a way he hasn't been in years. The next four races — before the June rule change — are effectively a separate championship within the championship. If Mercedes extends to 150+ points by Monaco, the prediction market will move well above 79%. If the gap narrows, it moves the other way. The market resolves December 31, 2026. The shape of the answer becomes clear by June 7.