IMSA iRacing Series - 2025 Season 1

logo for IMSA iRacing Series
2025 Season 1 - Races every even 2 hours at :45 past
iRacing partners with the International Motor Sports Association in a mixed class series featuring both prototype and GT cars, headlined by the GTP and GT3 classes. The performance gap between the divisions challenges every competitor, no matter the car. Just as in iconic sports car events like the Rolex 24, the 12 Hours of Sebring and Petit Le Mans, drivers go head-to-head with their car/class rivals while keeping an eye out for the cars and drivers in the other two classes.
  • Category: Sports car (5)
  • Track Types: sports_car
  • License Group Types: 5
  • Car Classes: [2523, 4011, 4029]
  • Car Types: audi, chevy, gt, gt3, gtd, gtp, huracan, lmdh, lmp2, p2, prototype, road, sports, sportscar
  • Allowed Licenses: [{'group_name': 'Class B', 'license_group': 4, 'max_license_level': 16, 'min_license_level': 16}, {'group_name': 'Class A', 'license_group': 5, 'max_license_level': 20, 'min_license_level': 17}, {'group_name': 'Pro', 'license_group': 6, 'max_license_level': 24, 'min_license_level': 21}, {'group_name': 'Pro/WC', 'license_group': 7, 'max_license_level': 28, 'min_license_level': 25}]
  • Allowed Season Members:

Set Up

  • Official
  • Rookie
  • Season
    2025 S1
  • Regional Comp.
  • Race Week
    0 (0)
  • Drop Weeks
    4 of 12
  • Multi Class
  • Fixed Setup
  • Drivers
    1 <> 1
  • Cross License
  • Driver Changes
  • Pit Lane Crashes
  • Incident Limit
    25
  • Warn Mode
    1
  • Warn Param 1
    17
  • Warn Param 2
    0
  • Caution Types
    0 /
  • Caution Laps Count
  • GW Checkered Limit
    0
  • Lucky Dog
  • Conduct Rule Mode
    3
  • HardCore Level
  • Car Switching
  • Start on Qual Tyre
  • Short Parade Lap
  • Start Zone
  • Qualifier Starts
  • Heat Racing
  • Num Opt Laps
    0
  • OP Duration (mins)
    120
  • Send to OP.
  • Ignore OP License.
  • OP Session Type.
    170
  • Starters
    10 <> 50
  • Grid By Class
  • Active
  • Complete
  • Diff. Race Tyres
  • Super Sessions
  • Member Restriction
  • Car Restriction
  • View Restriction
  • Start
    2024-12-17… (90)

Schedule

Round 1: Watkins Glen International Boot
Weather V.1 @ 2025-04-01T13:30:00
  • ToD
    0
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    66 0
  • Wind
    17 6 0
  • Skies
    17
  • Allow Fog
  • SUMMARY
  • Temp.
    18.6 <> 18.6
  • Wind
    28.4 <> 29.3
  • Skies (%)
    2 <> 3
  • Precip. Chance
    46
  • Precip. Rate
    0.5
  • Precip. Desc.
    Light
  • FORECAST
  • Type
    0
  • Seed
    33731308359853
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2024-12-17, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 2: Mobility Resort Motegi Grand Prix
Weather V.1 @ 2025-02-10T06:35:00
  • ToD
    5
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    65 0
  • Wind
    12 7 0
  • Skies
    12
  • Allow Fog
  • SUMMARY
  • Temp.
    18.4 <> 18.3
  • Wind
    19.8 <> 20.3
  • Skies (%)
    1 <> 1
  • Precip. Chance
    0
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    53845813187479
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2024-12-24, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 3: Sebring International Raceway International
Weather V.1 @ 2025-04-01T12:00:00
  • ToD
    9
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    78 0
  • Wind
    9 3 0
  • Skies
    9
  • Allow Fog
  • SUMMARY
  • Temp.
    23.8 <> 25.5
  • Wind
    18.3 <> 18.5
  • Skies (%)
    1 <> 2
  • Precip. Chance
    0
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    18824866731161
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2024-12-31, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 4: Hockenheimring Baden-Württemberg Grand Prix
Weather V.1 @ 2025-04-01T09:10:00
  • ToD
    1
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    65 0
  • Wind
    11 6 0
  • Skies
    11
  • Allow Fog
  • SUMMARY
  • Temp.
    18.5 <> 18.5
  • Wind
    18.3 <> 21
  • Skies (%)
    2 <> 2
  • Precip. Chance
    21
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    -130338092145326
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-01-07, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 5: Daytona International Speedway Road Course
Weather V.1 @ 2025-01-18T16:25:00
  • ToD
    2
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    70 0
  • Wind
    9 0 0
  • Skies
    9
  • Allow Fog
  • SUMMARY
  • Temp.
    19.6 <> 19.9
  • Wind
    17.8 <> 20.1
  • Skies (%)
    1 <> 1
  • Precip. Chance
    0
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    -36280468580971
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-01-14, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 6: Nürburgring Grand-Prix-Strecke BES/WEC
Weather V.1 @ 2025-04-01T12:00:00
  • ToD
    9
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    65 0
  • Wind
    10 6 0
  • Skies
    10
  • Allow Fog
  • SUMMARY
  • Temp.
    18.5 <> 18.4
  • Wind
    17.7 <> 18.1
  • Skies (%)
    3 <> 3
  • Precip. Chance
    29
  • Precip. Rate
    0.3
  • Precip. Desc.
    Light
  • FORECAST
  • Type
    0
  • Seed
    -82955501964916
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-01-21, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 7: Road America Full Course
Weather V.1 @ 2025-04-01T13:30:00
  • ToD
    0
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    65 0
  • Wind
    13 0 0
  • Skies
    13
  • Allow Fog
  • SUMMARY
  • Temp.
    18.7 <> 18.7
  • Wind
    14.1 <> 15.1
  • Skies (%)
    1 <> 3
  • Precip. Chance
    0
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    86324904860933
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-01-28, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 8: Autodromo Nazionale Monza Grand Prix
Weather V.1 @ 2025-03-01T09:10:00
  • ToD
    1
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    65 0
  • Wind
    4 2 0
  • Skies
    4
  • Allow Fog
  • SUMMARY
  • Temp.
    18.5 <> 18.6
  • Wind
    6.6 <> 7.9
  • Skies (%)
    0 <> 1
  • Precip. Chance
    0
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    -30476932969449
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-02-04, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 9: Long Beach Street Circuit
Weather V.1 @ 2025-02-15T06:40:00
  • ToD
    5
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    65 0
  • Wind
    5 0 0
  • Skies
    5
  • Allow Fog
  • SUMMARY
  • Temp.
    19.1 <> 19.1
  • Wind
    7.7 <> 8.6
  • Skies (%)
    1 <> 2
  • Precip. Chance
    0
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    103811522315157
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-02-11, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 10: Circuit des 24 Heures du Mans 24 Heures du Mans
Weather V.1 @ 2025-03-01T17:00:00
  • ToD
    2
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    66 0
  • Wind
    10 6 0
  • Skies
    10
  • Allow Fog
  • SUMMARY
  • Temp.
    18.7 <> 18.7
  • Wind
    16.4 <> 17.2
  • Skies (%)
    1 <> 1
  • Precip. Chance
    0
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    27008805725534
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-02-18, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 11: Algarve International Circuit Grand Prix
Weather V.1 @ 2025-04-01T12:00:00
  • ToD
    9
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    67 0
  • Wind
    13 6 0
  • Skies
    13
  • Allow Fog
  • SUMMARY
  • Temp.
    19.6 <> 19.7
  • Wind
    20.8 <> 21.3
  • Skies (%)
    2 <> 2
  • Precip. Chance
    23
  • Precip. Rate
    0.1
  • Precip. Desc.
    Light
  • FORECAST
  • Type
    0
  • Seed
    112739626831950
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-02-25, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None
Round 12: Circuit de Spa-Francorchamps Grand Prix Pits
Weather V.1 @ 2025-03-08T13:25:00
  • ToD
    0
  • Time Offsets
    [15, 35]
  • Time Multi
    1
  • Track Water
    0
  • Temp
    65 0
  • Wind
    9 5 0
  • Skies
    9
  • Allow Fog
  • SUMMARY
  • Temp.
    18.8 <> 18.8
  • Wind
    13 <> 13.3
  • Skies (%)
    0 <> 0
  • Precip. Chance
    0
  • Precip. Rate
    0
  • Precip. Desc.
    None
  • FORECAST
  • Type
    0
  • Seed
    -46852369586944
  • Skies.
    0
  • wind_dir.
    0
  • wind_speed.
    0
  • Temperature
    0
  • Precip.
    3
  • Stop Precip
Forecast SVG None file

  • Race Time Limit: 45
    Lap Limit: None
    Practice Length: 3
  • Qual Attached:
    Qual Laps: 2
    Qual Length: 8
  • Start Type: Rolling
    Start Zone:
    Short Parade Lap:
  • Full Course Yellows:
    Restart Type: Double-file Back
    Pit Lane Crashes:
  • Track State: Leave Marbles:
    Warm Up Length: 0
  • Day Offset: [ 0 , 1 , 2 , 3 , 4 , 5 , 6 ], First Session Time: 00:45:00, Repeat Minutes: 120, Repeating: , Session Minutes: 59, Start Date: 2025-03-04, Super Session:
imsa - Races every 2 hours at 45 past - roll - time
None