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ACC European Multiclass Series



The European Multiclass Series was created to allow racers on Assetto Corsa Competizione to compete in a friendly and fair environment. Any kinds of insults, racism or other unfair behaviour will therefore not be tolerated. Having fun is our top priority!

The following rules are used to ensure fair competition:


The European Multiclass Series is organized by the following marshals: GRT Grillic and GRT AIRESH4. They are in charge of coming up with the series rules, adjusting these in the interest of fair racing (f.ex adjusting BoP) and implementing them (f.ex stewarding accidents). 


All cars in the GT3 and GT4 class are allowed.


Tuning is allowed as long as it follows the ACC GT3 and GT4 division rules.

Registration and Numbers:

Drivers must sign up using the form found in registration. Driver’s must select a car and apply for a number, which the marshals will give out on a “first come, first serve” basis. Once you have chosen your car, your car choice is locked in, and you may not use a different car. The same goes for your number, it may not be changed once the first race has been completed. Number 1 and 11 is reserved for the previous season’s champions in case they would like to use it for the following season as well.

Race Organization:

The European Multiclass Series is a 6-round championship where each round consists of one qualifying session and one ~60-minute race. Free practice sessions are planned, these are usually run in front of the qualifying. 

The marshals will also gladly answer any questions you may have while in the party and lobby before the race.


20:00 - 20:20 - Free Practice

20:25 - 20:55 - Qualifying

21:00 - 22:00 - Race

All times are Central European Time, or GMT+1/BST+1 depending on the time of year.


The overall race results will be published by the marshals on the day after the race. Should there be any protests, then the marshals reserve the right to adjust the scoring for the drivers and delay the publishing of the results as necessary. This series will include a driver and team championship. As a team you must have a GT3 and GT4 driver, teams of 2 drivers in the same class, are not allowed.

Points are given out to the finishers as table:

Point System ACC EMS

The point system applies to both classes, the drivers of the GT4 class receives the same points as the drivers of the GT3 class. There will also be an ascent and descent. After the first race, the last two of each class will descend from tier 1 and the best two will be promoted from tier 2.


The race calendar with the exact dates and locations of each round can be found on the forum. The marshals reserve the right to adjust the calendar or move races at any time.

Hardware Issues:


All drivers taking part in the series should have a working headset; this is to ensure communication between drivers in case there is a crash or other crucial race information that needs to be passed around. Xbox parties will be used to allow the drivers to communicate with each other. Should your headset be broken, make sure you can at least hear the other drivers through f.ex your TV speakers.

Replacing batteries:

We recommends drivers use their controllers plugged in, so that no battery change is necessary during the race. If you run your controller with batteries, please make sure they are charged/full before the race. Drivers that obstruct others with self-inflicted hardware issues will be punished by the marshals.

Internet problems:

We recommends you disconnect other devices (laptops, phones, tablets etc.) from your network during the race. This is to ensure your connection is as good as possible, as drivers who obstruct others by lagging will be get a warning and three warnings from lagging can lead to a exclusion from the series.

Round Procedure:


A 30-minute qualifying session will be run before each race to decide the starting order. Only times set in the official qualifying lobby will be counted, times set in free practice or wrong qualifying do not count. Should a driver pause their game during qualifying, we ask that you pull over to the side or going back to the pitlane so that you don’t distract drivers on their qualifying laps. The fastest clean lap will be on pole, and the rest of the grid sorted accordingly. There will only one qualifying for GT3 and GT4 - if your lap is invalid, please make sure that you do not obstruct other participants.

Formation Lap and Race Start:

A long warm-up lap is driven at the start of the race. All drivers adhere to the position specified by Assetto Corsa Competizione. If a driver leaves this position for too long, he is put back automatically in the pit lane and starts out of the pit one lap behind. As soon as the start light turns green, the race is released for every car.


a) Yellow flag ​
This is a signal of danger with the following meanings: - Reduce your speed, do not overtake, and be prepared to change direction. There is a hazard beside or partly on the track. It must be evident that a driver has reduced speed; this means a driver is expected to have braked earlier and/or noticeably reduced speed in that sector.

b) Blue flag ​
This is an indication to a driver that he is about to be overtaken. It has different meanings during practice and the race. At all times: - that flag displayed to a driver leaving the pits if traffic is approaching on the track.​ During practice: - A faster car is close behind you and is about to overtake you.​ During the race: - The flag showed to a car about to be lapped, if the driver does not seem to be making full use of his rear-view mirrors. When shown, the driver concerned must allow the following car to pass at the earliest opportunity.

c) Blue Flag Unlapping
You are allowed to lap back as long as you don't hinder the driver in front of you or force him to leave his ideal line.

d) White flag ​
This flag will be waved and is used to indicate to the driver that there is a much slower vehicle on the sector of track controlled by that flag point.

e) Green flag ​
This flag indicate that the track is clear: it will be shown immediately after the incident that necessitated the use of one yellow flags. It may also be used, if deemed necessary by the Clerk of the Course, to signal the start of a warm-up lap or the start of a practice session.

Race End:

After the first finish his race, all drivers can finished their lap for the end of the race. Please all drivers drive a complete lap and then into the pit lane. Everyone is allowed to spin donuts. For the streamer, the time is used to play the national anthem of the winner and a virtual award ceremony is held in the stream.

Server Crash:

The following rules apply in the event of a server crash. If more than 75% of the race time has been driven, the race will be stopped and given full points. If less than 75% of the race time has been driven, the race is restarted. The server is restarted and all drivers rejoin. The start of the race is carried out normally, so there are no penalties. After the start in the 1st lap, everyone slows down and takes their correct starting position (singel file). Extreme caution is required so that there are no accidents. When everyone has taken their positions, the formation is switched to double lines and each row is allowed to accelerate and start from the start and finish line. Not previously. A server crash is when more than 5 drivers fly out of the lobby at the same time. This rule can be changed by the race director if necessary.

Aggressive Driving:

If a participant drives too aggressively (f.ex forcing their way past another driver) or tries to perform dangerous overtakes, they will be warned or punished by the marshals. We encourages fair and conservative driving to avoid accidents.


Overtakes should be set up cleanly and should not be f.ex an overly optimistic dive from far back. Sometimes a bit of contact, such as rubbing doors, isn’t avoidable, but we ask the drivers to keep contact to an absolute minimum. Allowing faster drivers past in order to not lose time is allowed. Violent and aggressive fighting can often lead to accidents and should therefore be avoided. If a driver overtakes another driver illegally (f.ex cutting a corner), they must return the position.

Lapping within a class is considered a blue flag, while lapping outside of a class is considered a normal overtaking maneuver, but the car in the slower class is not allowed to defend and must remain on the racing line.

Lapped Traffic:

Cars that are one or more laps down must yield and give way to faster cars. As such, it is recommended that the lapped car moves aside in time to allow the faster driver to take the racing line. In order to avoid misunderstandings and accidents while lapping cars, we ask that the drivers communicate with each other in the party. 

Pulling Over:

Should a driver pause their game during the race, we ask that they pull over and park off the track, away from the racing line to not obstruct the other drivers.


Accidents are defined as incidents between two or more drivers. These were either seen by the marshals directly or reported to them. The following points are classed as accidents:

Causing a collision
Distracting another driver from the race
Illegal defending (f.ex swerving to block under braking)
Illegal overtaking (f.ex cutting a corner to get past)
Violating the race rules
Ramming, spinning drivers out, etc.
Driving the wrong way around the track

Pit Stops:

There is one mandatory pit stop where you have to refuel. Tire change is not mandatory but allowed at any time as soon as the box opens. It can be done more then one pit stop. When leaving the pit exit line must be observed and must never be driven over. It is also forbidden to cross the pit entry line.

Entering the Pitlane/Merging with traffic:

If a driver is in a group of cars close to each other, the driver must announce that they are pitting to avoid any crashes due to miscommunication. Drivers must also observe the pit entry lines. When leaving the pit exit line must be observed and must never be driven over. It is also forbidden to cross the pit entry line.

When exiting the pits, the driver must announce that they are rejoining the track. Drivers leaving the pitlane must yield to faster cars and make sure they do not obstruct other drivers when rejoining. Traffic at race speed has right of way until the next braking zone after the pit exit, or until the driver leaving the pits has gotten up to race speed. Drivers must also observe the pit exit lines.


Drivers may submit a written protest to the marshals up to 24 hours after the race. We asks that you record any accidents you are involved in during the race (press the Xbox button, and then the X button) as a clip and then send the video to the marshals within 24 hours. We also ask that you do not share these clips publicly (make sure to turn off automatic uploading), but instead send them to the marshals via OneDrive, which is a free app on the Xbox. Please ensure that you give us as much video footage as possible, so that we can properly asses the incident.

The marshals will then evaluate the protest and impose penalties as they see fit. If one of the marshals is involved in a protest, the other marshals will evaluate the protest and steward the incident. If there are protests from drivers during the races themselves which demand immediate action, the marshals will discuss it and decide on the spot. The following races may then be postponed accordingly. 

We also ask to wait with submitting protests until after the race is completed, so that the marshals can drive their race in peace. Oftentimes, drivers can resolve their differences after the race once they have cooled down without needing to send a protest to the marshals. We ask that during the races, you don’t insult other drivers that you had accidents with; doing so will lead to an exclusion from the series.


Possible penalties for misconduct include warnings, points deductions (-2, -5, -10, -25), disqualification from the race, time penalties, drive-through penalty, exclusion from the series.

After three warnings against a driver in a season, a drive-through penalty is imposed. This has to be done in the first three laps of the next race. If the third warning is issued after the last race, the driver receives a 30-second time penalty, which is counted towards the result of the last race.

Track Limits:

Cutting or consistently going beyond the track limits in order to gain an advantage is prohibited and will be punished. If you cut a corner or extended an exit, you must clearly and intently lift off the accelerator to negate the time gained. If you go beyond the track limits due to out-braking yourself or making a mistake, you also must ensure you don’t gain any time/lift off in case you did gain an advantage. If you see other drivers disregarding track limits, we ask that you take a video of it and submit it as a protest.

Ramming and Crashing:

Ramming and crashing are defined as actions where a driver intentionally puts another driver at a disadvantage through contact, regardless of whether there is damage involved or not. Should a driver be doing any of the following things intentionally, they will be punished:

Driving into another driver’s car from behind or from the side (ramming into the back of them, spinning them out, etc.)
Not leaving enough racing room for another driver and causing a crash
Brake-checking and/or braking intentionally early for a turn in order to surprise other drivers in order to cause a crash
Rejoining the track carelessly, not yielding to faster cars, obstructing the drivers on track


“Ask any racer. Any real racer. It doesn’t matter if you win by an inch or a mile. Winning’s winning.”

 – Dom Toretto

This topic was modified 7 months ago 8 times by GRT AIRESH4
Topic starter Posted : 15/03/2021 7:07 pm