Rider Type · Data-Derived
All-Rounder
No obvious weakness. Adapts to gradient and distance without big performance swings.
Over 15 rides and 149 segment results in 2026, Donald Hersam averaged in the top 5% of the field, with a +0 percentile points (improves!) from the opening segments to the late-ride segments.
Over 15 rides and 149 segment results in 2026, Donald Hersam averaged in the top 5% of the field, with a +0 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 5% avg →
Late (S07+): top 5% avg ·
Swing: +0 percentile points (improves!)
Performance by Segment Type
By Distance
<0.4km (n=49 · 559W avg)
Top 7%
0.4–0.8km (n=56 · 487W avg)
Top 4%
>0.8km (n=44 · 407W avg)
Top 4%
By Gradient
<6% flat (n=35 · 485W avg)
Top 5%
6–10% mod (n=62 · 461W avg)
Top 5%
10–13% steep (n=41 · 520W avg)
Top 5%
>13% wall (n=10 · 506W avg)
Top 4%
Effort Profile
Punchy <0.45km ≥9% (n=35)
Top 6%
Threshold ≥0.7km ≥5% (n=40)
Top 4%
Peak Performances — Best 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 1/104 | Minoca Climb - from Golden Oak to Cervantes | 0.93 km | 7.0% |
| 1/90 | Prospect hill repeat | 0.59 km | 5.8% |
| 1/72 | Viscaino Rd (East Side) | 0.6 km | 10.8% |
| 1/70 | La Paloma from Westwind | 0.55 km | 6.9% |
| 1/70 | Elena Rd to Natoma | 0.82 km | 6.7% |
Toughest Moments — Worst 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 22/66 | La Rena Climb | 0.35 km | 7.3% |
| 18/66 | Emeraldhill Lane | 0.12 km | 12.3% |
| 10/54 | Sarahills Dr. (East) | 0.62 km | 9.6% |
| 12/66 | A little bit Country | 0.33 km | 11.3% |
| 10/58 | fulll Whitham Avenue | 0.43 km | 5.4% |
What the Data Suggests
💪
Strengths to Protect
Remarkable consistency — no single segment type is a weakness. Top 5% late in rides vs top 5% early — you warm into efforts rather than fade. That adaptability is rare: most riders have a clear Achilles heel that good routes can exploit. Best gradient: wall-steep (>13%) at top 4%.
🎯
Development Area
Sharpening the best segments into consistent top-10 finishes. Currently 98% top-10 rate — the consistency is there, the peak isn't yet. High-intensity work (VO2max, 30/30s) would push best efforts into the front group.
📊
The Real Enemy
Absolute power, not profile. The data shows manageable fatigue. The consistency is the foundation. The gap to the front isn't about endurance or the wrong segment type — it's about the power number itself. That's the most direct lever.
Pack Battle — Rivals Within 15 Seconds
Same-gender riders finishing within 15 s of Donald across multiple rides (≥2 encounters).
⚔️
Rival
Matin Massoudi
5–3 in 8 encounters · 62% wins
| Rider | Encounters | Donald record | Win % |
|---|---|---|---|
| ⚔️ Matin Massoudi | 8 | 5–3 | 62% |
| ⚔️ Wil Gibb | 2 | 1–1 | 50% |