Shared circuit
Portland International Raceway
Permanent · 12.0m wide · 3.1 km
Track layout
Safety concern
Moderate
Safe corner
Overtaking zone
0
Safety
Good
0
Overtaking
Needs work
0
Fun / Flow
Excellent
Est. Grade
Grade 3
National level
Length
3.1 km
Corners
12
OT Zones
0
Speed
104–333
F1
0:48.901
GT3
1:04.741
Club
1:22.379
Safety Analysis
Runoff
70
Braking zones
90
Corner approach
90
Sight lines
63
Track width
80
Overtaking Analysis
Proximity overtaking
10
Corner entry width
70
Gap closure rate
35
Speed differential
45
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