Rider Type · Data-Derived
Diesel / Rouleur
Consistent across the ride. Aerobic engine that keeps firing late in the day.
Over 17 rides and 166 segment results in 2026, Jonathan Lewis averaged in the top 71% of the field, with a +2 percentile points (improves!) from the opening segments to the late-ride segments.
Over 17 rides and 166 segment results in 2026, Jonathan Lewis averaged in the top 71% of the field, with a +2 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 74% avg →
Late (S07+): top 72% avg ·
Swing: +2 percentile points (improves!)
Performance by Segment Type
By Distance
<0.4km (n=60 · 330W avg)
Top 73%
0.4–0.8km (n=65 · 292W avg)
Top 72%
>0.8km (n=41 · 270W avg)
Top 65%
By Gradient
<6% flat (n=36 · 301W avg)
Top 65%
6–10% mod (n=72 · 296W avg)
Top 68%
10–13% steep (n=48 · 306W avg)
Top 76%
>13% wall (n=9 · 264W avg)
Top 82%
Effort Profile
Punchy <0.45km ≥9% (n=40)
Top 75%
Threshold ≥0.7km ≥5% (n=40)
Top 67%
Peak Performances — Best 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 13/59 | Ravensbury | 0.94 km | 4.9% |
| 20/75 | Via Ventana and Briones climb | 0.82 km | 6.8% |
| 22/71 | Foothills Park Vista Point (Egan Official) | 0.96 km | 7.6% |
| 20/63 | Tepa-Summit Wood | 0.94 km | 8.0% |
| 19/59 | West Loyola, Eastbrook to Rolly | 1.04 km | 7.5% |
Toughest Moments — Worst 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 55/55 | Canyon Drive | 0.51 km | 6.2% |
| 59/59 | Los Trancos (Egan Official) | 0.38 km | 11.8% |
| 52/52 | Ramona Rd. | 0.95 km | 11.9% |
| 61/62 | Stonebrook to Prospect | 0.47 km | 5.5% |
| 56/57 | nasty los trancos driveway | 0.63 km | 11.7% |
What the Data Suggests
💪
Strengths to Protect
Exceptional repeatability — the engine keeps firing deep into the ride. Late-ride performance (top 72%) 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 75% vs top 67%) 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: 338W → 279W (-17%) — 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.