🏁 SPiR AMERICAN ENDURANCE SERIES 🏁

Official Rulebook: American Endurance Series (AES)

Powered by Simpulse.pro | Sponsored by Portland International Raceway, Group S, and WCMS

1. League Administration & Infrastructure1.1 League Identity and JurisdictionThe American Endurance Series (AES) is the premier PC endurance championship operated by Simpulse.pro. This rulebook serves as the absolute governing document for all official AES events. Ignorance of these regulations is not an acceptable defense in the event of a penalty or steward inquiry.
1.2 Server Hierarchy and UtilizationThe Simpulse community operates across a strictly defined server architecture:Simpulse Main Server: The primary hub for all community interactions, general announcements, and console leagues.PLSE (E-Sports Server): The dedicated environment for our top-tier competitive e-sports teams and internal operational logistics.SPIR (Simpulse iRacing): The official home for AES. All PC-specific briefings, race day communications, and steward interactions will take place exclusively within the SPIR infrastructure.
1.3 Communication and BriefingsAttendance in the designated SPIR voice channel is mandatory for all team managers or at least one active driver per team during official sessions. Microphones must be muted during official race control broadcasts (e.g., qualifying briefings). Text chat in-sim should be restricted to critical communications only (e.g., "Pitting," "Pass Left/Right").
1.4 Entry Fee and RequirementsIn order to participate in the American Endurance Series, teams must pay a $10 USD fee (not including tax or any other addition) and drivers participating will need to have a Safety Rating (SR) of C and an iRating (iR) of 1.500. Drivers below this tally will not be granted their season license. For the paywall, this is necessary to keep the league and servers running, and it's a one time purchase. Teams that have paid for the entry free will be granted a license to race for how many seasons and categories that SPiR will offer in the future. Drivers will not have to pay anything.


1.5 Code of ConductThis is non-negotiable. Please be respectful to your fellow drivers, team principals, and most importantly staff, as we are all here to aid your experience in SPiR. While mild foul language is allowed, any racist, homophobic, misogynistic and other more deep comments will result in heavy penalties to those involved. Respect is key to creating a safe place for both newcomers and returning veterans to simracing. And remember, it's just a game.2. Event Parameters & Schedule2.1 Official AES CalendarThe American Endurance Series traverses the most demanding circuits in North America. The dates and durations are locked as follows:DateTrackDuration July 19Daytona International Speedway24 HoursAugust 02Sebring International Raceway12 HoursAugust 23Sonoma Raceway6 HoursSeptember 12Circuit of the Americas (COTA)10 HoursOctober 11Road America24 HoursOctober 25Portland International Raceway6 HoursNovember 15Watkins Glen International6 HoursNovember 19Road Atlanta10 Hours

2.2 Session Lengths & Standardized Qualifying ProcedureOfficial Practice: 1 Hour standard practice session for all classes.   Qualifying Duration: 30 Minutes total, strictly split by class format:   GT3 Class: First 15 minutes of the session.   GTP Class: Second 15 minutes of the session.   Drivers must remain in the pit lane until their specific class window opens. Entering the track or setting a time during the opposing class's designated window will result in immediate qualification disqualification

3. Technical Regulations3.1 Eligible Car Classes (Unrestricted)AES operates a premier multi-class structure (GTP and GT3). There are no restrictions on specific chassis models, besides no legacy cars like for example teams will have to utilize the BMW M V8 HYBRID EVO instead of the Legacy. Teams are free to select any vehicle currently classified by iRacing within these two categories.
3.2 Weather ParametersWeather conditions will be custom-set by race administration prior to each event based on specific parameters (to be defined). The exact forecasting system and track conditions will be locked in before race week, requiring teams to adapt to the designated environment.
3.3 Tire Allocation and ManagementTo simulate realistic endurance logistics and force teams to make critical strategic decisions regarding double-stinting, tire sets will be strictly limited based on the duration of the event:6-Hour Events: 10 Sets maximum.10 & 12-Hour Events: 18 Sets maximum.24-Hour Events: 40 Sets maximum.
3.4 Setup Philosophy and ScrutineeringAES operates on an open-setup philosophy. Teams are free to adjust tire pressures, suspension geometry, aero mapping, and fuel loads. Exploitation of known iRacing physics glitches or telemetry exploits will result in a permanent league ban.
3.5 Hardware and Connection StabilityDrivers are solely responsible for their hardware and network stability. If a driver begins to "blink" (frequently disappearing and reappearing due to latency or packet loss) and is deemed a hazard by Race Control or surrounding drivers, they will be ordered to fall to the back of their class or return to the pit lane until the connection stabilizes.
3.6 Balance of PerformanceBesides to avoid certain cars from dominating in certain tracks, BoP will be custom and will undergo rigorous testing to ensure the most balanced, well performing combo for all tracks. Our team will also do research on 3rd party sources (HYMO, P1DOKS) to see what would be the theoretically strongest cars on each track and also the weakest, and hopefully manage to make them all less than a second or more in difference. This is to incentivize more variant grids, not just a one car grid.
3.7 Event AttendanceIn order to guarantee maximum participation for your team in the case of 1 or more drivers not being able to attend a session, Team Principals will be permitted to swap out the non attendees for ones that will be able to make it, this is to prevent withdrawing due to not meeting the 2 drivers minimum requirement or to prevent stint fatigue.




4. Sporting Code & On-Track Conduct

4.1 Standard iRacing Code IntegrationThe foundational rules of the official iRacing Sporting Code apply to all AES events. However, in any instance where the AES Rulebook conflicts with the iRacing Sporting Code, this AES document supersedes it.
4.2 Defining Overlap and the Right to Racing RoomAn overtaking car is considered to have "significant overlap" when its front axle is perfectly aligned with, or ahead of, the driver’s peripheral vision of the defending car before the traditional turn-in point of the corner. If overlap is achieved, the defending car must leave exactly one car width of space on the racing surface.
4.3 Defending and the "One Move" RuleA defending driver is permitted to make only one reactionary move to break the tow or defend a position. Moving back toward the racing line for the braking zone is permitted, provided the defending car leaves a full car width of space if the attacking car has momentum. Weaving on the straights is strictly prohibited.
4.4 Blue Flag Etiquette and Multi-Class ManagementWhen presented with a blue flag, the slower class car must maintain its predictable racing line. Do not swerve out of the way. The responsibility to execute a safe and clean pass lies entirely on the faster class car.
4.5 Pit Entry and Exit ProtocolsDrivers must strictly adhere to the defined pit entry and exit cones. Crossing the solid blend line on pit exit will result in an automated iRacing black flag. Race Control will not clear pit-lane penalties under any circumstances.
4.6 Rejoining the Track After an IncidentIf a driver spins or goes off-track, they must hold their brakes immediately. Rejoining the track must only be done parallel to the racing line and only when the relative timing box indicates a clear gap. An unsafe rejoin is classified as a Tier 3 penalty.5. Incident Reporting & Stewarding5.1 Live Protest WindowAll incidents will be reviewed live mid session, and time of response may vary in the severity of the incident and how many have been sent.5.2 Protest Submission FormatProtests must be submitted via the SPIR ticketing system. A valid protest must include:The lap number and exact timestamp of the incident.The names and car numbers of all drivers involved.A brief, objective description of the event.A localized iRacing replay file (.rpy) capturing the incident from at least two angles.
5.3 Penalty Tier SystemTier 1 (Minor): Moving under braking, avoidable off-track without damage. Penalty: Reprimand or 5-second post-race time addition.Tier 2 (Moderate): Avoidable collision resulting in minor damage, unsafe rejoin. Penalty: 15 to 30-second post-race time addition or next-race grid drop.Tier 3 (Severe): Major multi-car incident, ignoring blue flags maliciously, retaliation. Penalty: Drive-through equivalent (post-race), disqualification, or race suspension.Tier 4 (Unfightable): Any form of intent wrecking. Penalty: permanent ban from SPiR events effective immediately.
6. Livery & Branding Regulations6.1 Trading Paints IntegrationAll teams must utilize the Trading Paints application to display their custom liveries.
6.2 Simpulse Official Branding (Highly Recommended)Teams are heavily encouraged to integrate the official Simpulse logo anywhere on their vehicle liveries. While optional, sporting the logo directly supports the league’s visibility, aids in acquiring future sponsorships, and drives revenue that directly funds server infrastructure and broadcast quality.
6.3 Prohibited ContentAny livery depicting offensive material, political statements, or unsanctioned competing league branding will result in a severe grid penalty and a mandate to run a default paint.
7. Broadcast & Media Relations7.1 Professional StreamingAES is committed to providing a top-tier viewing experience. The calendar will feature a live, professional broadcast complete with standard on-screen graphics, timing pylons, and dynamic camera work.
7.2 Commentary and Team EngagementLive commentary talent is currently TBD. Teams may be approached for pre-race interviews, and team managers are encouraged to provide strategy insights to the broadcast booth to enhance the viewing experience.
Official SPIR Operations NoteIf you have any doubts, questions, or require clarification on any of the regulations listed in this document, please write directly to Pablo or Glyn, as they are the primary directors in charge of SPIR operations.