Rider Type · Data-Derived
Puncheur
Explosive on short steep efforts, strongest when fresh. Power drops with fatigue.
Over 10 rides and 93 segment results in 2026, Brian Tam averaged in the top 48% of the field, with a −16 percentile points from the opening segments to the late-ride segments.
Over 10 rides and 93 segment results in 2026, Brian Tam averaged in the top 48% of the field, with a −16 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 37% avg →
Late (S07+): top 53% avg ·
Swing: −16 percentile points
Performance by Segment Type
By Distance
<0.4km (n=33)
Top 46%
0.4–0.8km (n=37)
Top 47%
>0.8km (n=23)
Top 55%
By Gradient
<6% flat (n=21)
Top 56%
6–10% mod (n=31)
Top 55%
10–13% steep (n=27)
Top 40%
>13% wall (n=14)
Top 38%
Effort Profile
Punchy <0.45km ≥9% (n=25)
Top 38%
Threshold ≥0.7km ≥5% (n=22)
Top 57%
Peak Performances — Best 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 12/77 | La Barranca Rd last steep part | 0.17 km | 14.2% |
| 11/61 | Deerfield Drive up | 0.24 km | 9.1% |
| 12/62 | La Barranca Rd last steep part | 0.17 km | 14.2% |
| 11/56 | Joaquin Climb | 0.53 km | 14.4% |
| 14/71 | middle fork from stop sign | 0.25 km | 15.2% |
Toughest Moments — Worst 5 Segments
| Rank | Segment | Distance | Grade |
|---|---|---|---|
| 76/76 | Dianne Drive Climb | 0.31 km | 6.5% |
| 62/67 | A little bit Country | 0.33 km | 11.3% |
| 55/60 | Lindy Ln (No Canyon View) - Egan Official | 0.9 km | 8.7% |
| 58/64 | Deodara, Vineyard to the end | 0.36 km | 5.4% |
| 61/68 | Briones climb | 0.39 km | 8.1% |
What the Data Suggests
💪
Strengths to Protect
Explosive anaerobic power on short steep climbs. Opening-segment aggression (top 37% 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 37%) and S7+ (top 53%) is 16 percentile points. Even closing that to 8 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. The issue is power-at-fatigue (FTP relative to peak power) — on a fresh day the ceiling is genuinely high.