Rider Type · Data-Derived
Puncheur
Explosive on short steep efforts, strongest when fresh. Power drops with fatigue.
Over 18 rides and 174 segment results in 2025, James Robinson averaged in the top 54% of the field, with a −4 percentile points from the opening segments to the late-ride segments.
Over 18 rides and 174 segment results in 2025, James Robinson averaged in the top 54% of the field, with a −4 percentile points 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 50% avg →
Late (S07+): top 55% avg ·
Swing: −4 percentile points
Performance by Segment Type
By Distance
<0.4km (n=72 · 327W avg)
Top 48%
0.4–0.8km (n=64 · 271W avg)
Top 56%
>0.8km (n=38 · 232W avg)
Top 61%
By Gradient
<6% flat (n=29 · 274W avg)
Top 55%
6–10% mod (n=78 · 282W avg)
Top 56%
10–13% steep (n=54 · 298W avg)
Top 52%
>13% wall (n=11 · 310W avg)
Top 47%
Effort Profile
Punchy <0.45km ≥9% (n=48)
Top 47%
Threshold ≥0.7km ≥5% (n=35)
Top 63%
Peak Performances — Best 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 13/68 | Bandera Dr (Egan Official) | 0.31 km | 10.8% |
| 21/84 | Deodara, Vineyard to the end | 0.36 km | 5.4% |
| 13/52 | Comer Climbs (Third) | 0.32 km | 10.3% |
| 14/53 | Parker Ranch to Star Ridge | 0.46 km | 12.0% |
| 14/53 | Vist Arrroyo Wall Two | 0.25 km | 10.5% |
Toughest Moments — Worst 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 79/79 | John Marthens Lane | 0.54 km | 10.6% |
| 47/55 | Laurel Glen to top of Alexis (Egan Official) | 1.04 km | 6.1% |
| 43/55 | Alexis_to_Country_Club_KOM | 0.79 km | 7.3% |
| 60/78 | La Cresta | 1.32 km | 6.4% |
| 44/59 | The Best Part of Purissima | 0.64 km | 1.9% |
What the Data Suggests
💪
Strengths to Protect
Explosive anaerobic power on short steep climbs. Opening-segment aggression (top 50% on S1–S2). Wall-gradient efforts where torque beats sustained output. Don't over-train aerobic base at the expense of peak power — that edge is real.
🎯
Development Area
Aerobic threshold and repeatability — the gap between S1 (top 50%) and S7+ (top 55%) is 4 percentile points. Even closing that to 5 points would be transformative on long-format rides. Target: 2×20 threshold work and back-to-back climbing days to build the aerobic floor.
📊
The Real Enemy
Fatigue, not segment type. Power drops 29% from short to long segments (327W → 232W). The issue is power-at-fatigue (FTP relative to peak power) — on a fresh day the ceiling is genuinely high.