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ZRS Sonoma Race 1

Sonoma Raceway · March 14, 2026 · 7 hours

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12.3-40.1°C
Track Temp Range
14-36°C
Optimal Temp Window
+0.016s/°C
Pace per °CLow reliability
77/100
Avg Condition Score

Track Temperature Evolution

Temperature vs Lap Time

Lap times grouped by track temperature bins. Shows how temperature affects pace.

How Temperature Affects Pace

Estimated effect: +16ms per °C

Higher temperatures correlate with slower lap times

Confidence: Low

Based on 1826 clean laps across 15 temperature ranges

Low reliability. This estimate does not account for driver changes, class differences (ZP2/ZR2/ZR3 have different baseline pace), or tire degradation over stints. Temperature explains very little of the lap time variation. Refer to the chart above for the actual relationship between track temp and typical lap time.
Optimal window: 14-36°C(bins within 0.5% of fastest median)

Optimal Condition Windows

Time periods when track conditions were most favorable for fast laps.

Around lap 66Best
Track Temp: 21.6°C
Condition: 75/100
Fast laps (top 10%): 15
Around lap 71#2
Track Temp: 22.3°C
Condition: 75/100
Fast laps (top 10%): 13
Around lap 61#3
Track Temp: 20.8°C
Condition: 71/100
Fast laps (top 10%): 13
Around lap 36#4
Track Temp: 17.1°C
Condition: 65/100
Fast laps (top 10%): 11
Around lap 31#5
Track Temp: 16.4°C
Condition: 63/100
Fast laps (top 10%): 11

Wind Impact on Sector Times

Scatter plot showing wind speed vs sector times across all laps

Methodology

  • Each lap is correlated with the nearest weather reading (recorded every ~60 seconds)
  • Pace impact estimated by comparing typical lap times across 2°C temperature ranges
  • Condition score (0-100) considers track temp deviation from optimal, humidity, wind, and rain
  • Optimal windows use 15-minute rolling analysis to find periods with most top-10% laps
  • Note: With data from a single race, reliability is limited. Use these estimates as directional guidance rather than precise values.