Formula 1's 2027 calendar, published on 16 September after World Motor Sport Council approval, runs 24 Grands Prix. Formula 1's 2026 calendar, read on the same day, runs 23, ending at Abu Dhabi on 6 December. That is one more race next year. It is also five fewer hours of free practice.
The arithmetic turns on a single definition. The FIA's 2026 Formula 1 Sporting Regulations, Issue 08 of 5 August 2026, call any competition where a Sprint is scheduled an Alternative Format Competition, and Article B2.1.2 gives that competition "One (1) free practice session ("Free Practice 1" or "FP1"), lasting one (1) hour". Article B2.1.1 gives a Standard Format Competition three sessions of an hour each. Formula 1 puts the same structure in its own words for next season: the Sprint means "the number of practice sessions are reduced from three one-hour sessions to just one 60-minute run".
Nothing is deleted in that trade. The two lost hours are occupied: Sprint Qualifying takes the Friday afternoon slot that would have held second practice, and the Sprint itself takes the Saturday morning slot that would have held third. The car still runs. What changes is that every lap after the first hour is scored, which converts time a team could spend on setup experiments into time it has to spend on a result.
Sprint Qualifying is itself shorter than the session it displaces. Its three segments run 12 minutes, 10 minutes and eight, which is 30 minutes of scheduled running inside the hour second practice would have filled. Formula 1 counts the swap as a gain because Sprint Qualifying outdraws practice on the measure it cares about, and on that measure it plainly does. Counted instead as track time available to an engineer, the Friday afternoon of a Sprint weekend holds half of what a standard Friday afternoon holds, and none of it is free.
Bahrain opens the 2027 season in March, at the circuit that holds the four-day test in February, followed by Saudi Arabia and then a triple header of Australia, Japan and China. Monaco keeps its June date and opens the European leg. Portugal returns at Portimao on a two-year deal and Türkiye on a five-year agreement running to 2031, slotted into an October triple header between Azerbaijan and Singapore. Qatar and Abu Dhabi close the 2027 season in December, the same pairing that closes this one.
Seventeen of this year's 23 rounds are standard and six carry Sprints, which schedules 57 hours of practice. Fourteen of next year's 24 are standard and ten carry Sprints, which schedules 52. Both figures are baselines rather than fixed quantities, because B2.1.1 allows FP2 to run 90 minutes when additional wet-weather tyre specifications are supplied, and B2.1.2 allows FP1 the same extension by agreement of the FIA, the commercial rights holder and a simple majority of teams. Neither exception changes the direction of travel.
Four numbers carry Formula 1's public case for the expansion, and all four measure the audience rather than the racing. Formula 1 states that total viewership of Sprint weekends is 12 percent higher than non-Sprint weekends, that Sprint Qualifying is "up to three times more popular with fans than practice", that 82 percent of attendees say the format adds value to their ticket, and that 75 percent of fans believe Sprints add value to a season. Stefano Domenicali's argument in the calendar release is for "more intensity, drama, and the wheel-to-wheel action". None of that is untrue, and none of it is about preparation.
Points are where the change stops being a matter of presentation. Article A2.2.2 of the FIA's General Regulatory Provisions, Issue 03 of 25 June 2026, pays a Sprint on a scale of 8, 7, 6, 5, 4, 3, 2 and 1, which is 36 points across the top eight. Article A2.2.1 pays a Grand Prix run to at least 75 percent distance on a scale of 25, 18, 15, 12, 10, 8, 6, 4, 2 and 1, which is 101 points across the top ten, and the 2026 scale carries no point for fastest lap. A Sprint weekend therefore puts 137 points on the board and a standard weekend 101.
Across a full season the Sprint pool rises from 216 points to 360, an increase of two thirds. Measured against everything available to a single driver, 2,539 this year and 2,784 next, the Sprint's share of the championship moves from 8.51 percent to 12.93 percent. Half again as much of the title will be settled 100 kilometres at a time, over about 30 minutes, in races with no mandatory pit stop.
Read the two sets of figures together and they run in opposite directions. The weekends worth 137 points are the weekends with one hour of practice; the weekends worth 101 are the ones with three. In 2027 the value of a race weekend and the preparation permitted for it are inversely related, and the number of high-value, low-preparation weekends goes from six to ten.
Testing moves the same way and further. Formula 1's own account of this year's pre-season is "a five-day Shakedown in Barcelona followed by two three-day tests in Bahrain", eleven days in total. For 2027 it becomes "one test, lasting four days in Bahrain", from 24 to 27 February. Seven days disappear, and the stated reason is continuity in the rules, which is a real argument in the second year of a regulation cycle. It is also the argument that would justify keeping the days and spending them on cars nobody has finished learning.
Three of the first four weekends of 2027 carry Sprints. Bahrain has one at round one, Australia at round three and Japan at round four, which puts 108 Sprint points on the board before the fifth Grand Prix and gives a team six hours of practice across the opening month. Formula 1 writes the consequence itself, and writes it as a feature: the arrangement "will reward teams who are fast and competitive straight out of the box". Four days of pre-season running now stand between a new car and a scored session.
The cost lands hardest through a rule most readers never see. Article B1.7.3.c of the Sporting Regulations requires every team, at two competitions per season for each car entered, to field "a driver who has not participated in more than two (2) Championship Races in their career", and the chapeau above it permits those runs "during FP1 and FP2". An Alternative Format Competition has no FP2. Discharging that obligation at a Sprint weekend therefore costs a race driver every minute of practice he was going to get rather than a third of it, and the weekends where that is not the case fall from 17 to 14.
None of which is a shortage. A team owes four of those sessions a year, two for each car, against 14 weekends that still carry a second practice to spend them in. What changes is the price of the obligation rather than the room to meet it, and the teams for whom an hour of FP1 is worth most are precisely the ones least able to hand it over.
Monaco is the case that shows what the format is being bought for. Monte Carlo has never held a Sprint and will hold one in 2027, with Sprint Qualifying on Friday, the Sprint on Saturday morning in the slot third practice would have occupied, and Grand Prix qualifying later that afternoon. The justification Formula 1 offers runs entirely through the qualifying sessions: "One of the most exhilarating sessions to watch in Formula 1 is Qualifying in Monaco", and so "fans will get to enjoy not one but two of those spectacular sessions in the Principality". The Sprint race appears in that passage only as a time on a schedule.
Monte Carlo's difficulty has never been a shortage of qualifying, which makes the decision a coherent commercial one and an unusually candid one. Selling a second qualifying session there, on a circuit whose walls make the opening hour of running the most expensive of any weekend on the calendar, is a direct exchange of preparation for broadcast inventory, and the release describes it in those terms without dressing it as sport.
Article B2.2.1 is worth reading beside that passage, because it begins "At each Alternative Format Competition, the starting grid of the Sprint will be determined by the results of the sprint qualifying session". Every one of the ten Sprint weekends therefore carries a second knockout qualifying session, Bahrain and Silverstone and Interlagos alongside Monte Carlo, as a property of the format rather than a concession to any venue. Formula 1 states the same structure generically four paragraphs after offering it as Monaco's compensation. The benefit named at one address ships with all ten, which makes it a description of what the Sprint does rather than a reason to have put one here.
The season closes the way it opens. Qatar and Abu Dhabi both take Sprints, so the final two weekends carry 274 points where a standard pair would carry 202. Formula 1 notes the effect in passing, "leaving more points available for the final two Grands Prix weekends of the year". A championship still alive in December will be decided across two events with two hours of practice between them.
Qatar and Abu Dhabi are worth a second look for an unrelated reason. Paddock Notes reported on 9 September that the FIA's calendar carries a mark for a race called off and was not applying it to the 2026 Qatar and Abu Dhabi rounds. Today's release settles nothing about this season, because it is a 2027 document and says nothing about 2026. What it does establish is that both venues hold closing slots on next year's calendar, and that each has been given an upgraded weekend format to go with them.
One document decides whether any of this arithmetic survives. Every article number above comes from the sporting regulations in force for 2026, and the hour counts assume B2.1.1 and B2.1.2 carry into 2027 unchanged. Formula 1 has stated next season's session structure in its own words; the FIA has not yet published the regulations that would make it binding. Until it does, ten Sprints are a calendar entry and 52 hours is a forecast.