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ISL ASPIRE RACING SPORTSCAR LEAGUE S4
ISL ASPIRE RACING SPORTSCAR LEAGUE S4
GTP 2,079
12 12
Rating Requirements
LMP2 2,118
12 12
Rating Requirements
GT3 PRO 2,372
18 18
Rating Requirements
GT3 AM 1,961
18 18
Rating Requirements
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Event in progress Discord

ISL ASPIRE RACING SPORTSCAR LEAGUE S4

iRacing solo event starting on with 6 Rounds.

Car Categories

LMDh LMP2 GT3
From Daytona 24H To Your Sim · VPG Sim

Ford Mustang GT3 Sim Wheel – Chosen by the 2025 24H Daytona Winner for its balance, grip and confidence.

Circuit Gilles Villeneuve
Circuit des 24 Heures du Mans - 24 Heures du Mans
AutĂłdromo Hermanos RodrĂ­guez - Grand Prix
Silverstone Circuit - Grand Prix
Autodromo Nazionale Monza - Grand Prix

Description and Instructions

ISL ASPIRE RACING SPORTSCAR LEAGUE - SEASON 4

Welcome to the fourth season of our Tuesday night IMSA series - sponsored by ISL Refrigeration, and Broadcast LIVE by GreenFlagTV!

Our league follows the iRacing IMSA sprint official calendar.

CLASSES/CATEGORIES
  • GTP
  • LMP2
  • GT3 PRO
  • GT3 AM

We understand iRating isn't always an indication of a drivers pace, so we reserve the right to move drivers to a different class if required. We will manually split GT3 based on the ratings of those signed up before the first race. With signups for GT3 now full, if a space becomes available use the following rating boundary as a guideline - over 2200 is PRO and 2199 or under is AM.


RACE NUMBERS

We will assign you a race number once the classes have been split. Please sign up with your preferred race number and we will adjust it.

For example: John Smith signs up in GTP with preferred number of 75. If they are racing in the GTP class they will have the race number 175. If they are placed into GT3 PRO they will have the race number 375.

This process is to help with identifying different class drivers during the race using the in-game relative. The numbers 101/201/301/401 are reserved for the champion of the previous series - unless they do not return.


DISCORD 

For more information, please join our Discord. CLICK HERE TO JOIN


EVENT CALENDAR

  • 27/10/26 - Circuit Gilles Villeneuve - Grand Prix - Endurance
  • 03/11/26 - Circuit des 24 Heures du Mans - Endurance
  • 10/11/26 - Autodromo Hermanos Rodriguez - Grand Prix - Sprint
  • 24/11/26 - Silverstone Circuit - Grand Prix - Sprint
  • 01/12/26 - Autodromo Nazionale Monza - Grand Prix - Endurance
  • 08/12/26 - Sebring International Raceway - International - Endurance


EVENT SCHEDULE

ENDURANCE ROUNDS

• Practice: 19:00 CET - 90 Mins

• Qualifying (Open): 20:30 CET - 30 Mins

• Race: 21:00 CET - 60 Mins (ONE MANDATORY FUEL STOP)

SPRINT ROUNDS

• Practice: 19:00 CET - 60 Mins

• Qualifying (Open): 20:00 CET - 30 Mins

• Race 1: 20:30 CET - 30 Mins

• Warmup: 21:00 CET - 5 Mins

• Race 2: 21:05 CET - 30 Mins


SIGN OUTS

If you cannot attend a race please withdraw or sign out from that race in the races tab.


DROP ROUNDS

There will be one drop round for this series.


INCIDENT POINTS

Drive through penalty at x17. DSQ at x25.


BONUS POINTS

There will be 1 bonus point per race for fastest lap.


PIT STOPS

Fuel will be limited to 80% for GTP and LMP2 and 75% for GT3, 1 mandatory fuel stop in endurance rounds only.


WEATHER

Weather and conditions will be set as close to the weeks iRacing IMSA series official as possible, taken from the official iRacing UI. This has been made harder since the recent update as they no longer share the % chance of rain in the PDF. We now use the weather conditions from the schedule and re-create it as closely as possible.

Servers will be created for all sessions before the season begins, allowing all drivers to practice using the likely conditions for the races.

STEWARDING

There will be post race stewarding, and drivers will be able to report incidents on our discord to be reviewed by our stewarding team. We reserve the right to remove drivers from the series for unsportsmanlike conduct. We also have our stewards 'Lap 1 Review', more details can be found in the league document.


BROADCAST

This series will be broadcast live with commentary by GreenFlagTV!

https://www.youtube.com/@gflagtv


LIVERY RULES

Please follow the link below to go to the GreenFlagTV website, where they outline their rules regarding liveries displayed on their broadcast:

https://www.greenflagtv.com/paint-policy.html

Failure to comply with these rules may result in being removed from the league.


SERIES INFORMATION DOCUMENT

Available through the Series-Info section of our Discord server. Please ensure to familiarise yourself with the rules, formats, expectations that are outlined in the info document, 99% of your questions can be answered there.

SPONSORS

ISL Refrigeration - islrefrigeration.co.uk
Hemming Design - hemmingdesign.com
Five Nine Racing - youtube.com/@FiveNineRacing

OTHER

Please note that this series is a not-for-profit league. Your sign-up fees go directly towards covering the cost of the GreenFlagTV broadcast.

Season 4 has received an entry fee reduction from Season 3.

The Aspire Racing admin team all have shared access and no one person is solely responsible.

Car List

GTP

LMP2

GT3 PRO

GT3 AM