Rider Type · Data-Derived
Diesel / Rouleur
Consistent across the ride. Aerobic engine that keeps firing late in the day.
Over 18 rides and 173 segment results in 2025, Kevin Kauffman averaged in the top 23% of the field, with a +12 percentile points (improves!) from the opening segments to the late-ride segments.
Over 18 rides and 173 segment results in 2025, Kevin Kauffman averaged in the top 23% of the field, with a +12 percentile points (improves!) from the opening segments to the late-ride segments.
Fatigue Pattern — Field Percentile by Segment Position
Average field percentile per segment slot (lower = better; bar height = how far back)
Opening (S01–S02): top 31% avg →
Late (S07+): top 20% avg ·
Swing: +12 percentile points (improves!)
Performance by Segment Type
By Distance
<0.4km (n=70 · 493W avg)
Top 28%
0.4–0.8km (n=64 · 436W avg)
Top 21%
>0.8km (n=39 · 372W avg)
Top 17%
By Gradient
<6% flat (n=33 · 463W avg)
Top 18%
6–10% mod (n=76 · 438W avg)
Top 23%
10–13% steep (n=49 · 446W avg)
Top 25%
>13% wall (n=13 · 443W avg)
Top 30%
Effort Profile
Punchy <0.45km ≥9% (n=46)
Top 27%
Threshold ≥0.7km ≥5% (n=37)
Top 17%
Peak Performances — Best 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 6/90 | Summerhill / Rockpoint | 0.36 km | 8.4% |
| 4/58 | Purissima — Arastradero to Viscaino | 1.11 km | 2.0% |
| 4/56 | Horseshoe Bend - Steep Bit | 0.47 km | 10.3% |
| 4/56 | Boronda View Sprint | 0.6 km | 4.4% |
| 6/79 | Ascenscion + Anacapa | 0.85 km | 9.4% |
Toughest Moments — Worst 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 88/88 | La Barranca Rd | 0.22 km | 7.7% |
| 62/62 | Morro Vista | 0.25 km | 8.1% |
| 64/84 | Liddicoat + Stanford | 0.4 km | 10.0% |
| 39/67 | Lundy Grind | 0.13 km | 8.0% |
| 48/89 | Madonna Way (the climb) | 0.29 km | 14.4% |
What the Data Suggests
💪
Strengths to Protect
Exceptional repeatability — the engine keeps firing deep into the ride. Late-ride performance (top 20%) is actually stronger to the opening. Thrives on rides with high segment counts where rivals are already fading. The aerobic base is the asset — protect it.
🎯
Development Area
Peak power and short-burst acceleration. The punch/threshold gap (top 27% vs top 17%) shows where the ceiling is on explosive efforts. Sprint intervals and over-under VO2max work would add a new gear without eroding the aerobic base. The diesel engine is built — adding a turbo is the next step.
📊
The Real Enemy
Absolute peak power output, not endurance. The engine runs clean all day but the rev ceiling is the constraint. Watts from early to late: 484W → 428W (-12%) — barely any drop, which is the signature. The rival who fades less than everyone else still loses to a rider who never needed to fade.