400K Brevet · 2026-04-18 · Start 06:00 PT
GCR 400k Brevet: Lake Sonoma ● Live
249 mi ·
9,619 ft · ACP cutoff 27h
Miles
K ft
Difficulty
Avg mph
1
Controls
3 stops
0
Headwind
segments
20h21
Elapsed
20h21 moving
+6:39
Time bank
cutoff 27h
Journey
Hover or click a stop — table below stays in sync
Start
Control
Rest
Waypoint
Finish
Move across the map or elevation profile to inspect the same route position.
descent
0–3%
3–6%
6–9%
9–12%
12%+
Itinerary · 3 stops
1 control
| # | Stop | Seg | Cumul | Climb | Pace | Elapsed | ETA | Bank | Wind | Tuf?
Toughness (0–10) — how hard each segment is, combining:
• Climbing (ft per mile) • Headwind — counted as the climb it physically equals (≈12 ft/mi per mph), ×1.25 for the mental drain of a relentless headwind (≈15 ft/mi per mph applied) • Temperature — 0 in a ~50–68°F comfort band; rising penalty in heat (the bigger effect) and a smaller one in cold 0–3 easy 3–5 moderate 5–7 hard 7+ brutal |
|---|---|---|---|---|---|---|---|---|---|---|
| 🚩 |
GCR 400k Brevet: Lake Sonoma (Start)
|
— | 0 | — | — | 0h00 | 06:00 PT | — | — | |
| ☕ |
Receipt control - Safeway
|
50.0 | 50 | 17/mi | 3h31· 14.2 | 3h31 | 09:31 PT | +1:55 | — | 1.1 |
| 🏁 |
GCR 400k Brevet: Lake Sonoma (Finish)
|
198.6 | 249 | 44/mi | 16h50· 11.8 | 20h21 | 02:21+1 PT | +6:39 | — | 2.8 |
Choose your pace
Pick a pace — the itinerary above re-times live
3 ways to ride it
Pick the strategy that fits your goal — the times below are derived from the base plan with adjusted segment speed and night halt.
Comfort
+6% margin · safety buffer
21:35
Total elapsed
+5:25
Time bank
GCR 400k Brevet: Lake Sonoma (Start)
0mi
06:00
Receipt control - Safeway
50mi
09:44
GCR 400k Brevet: Lake Sonoma (Finish)
249mi
03:35+1
⚠ Comfortable margin — easiest finish.
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★ TEAM PLAN
Standard
Team plan
20:21
Total elapsed
+6:39
Time bank
GCR 400k Brevet: Lake Sonoma (Start)
0mi
06:00
Receipt control - Safeway
50mi
09:31
GCR 400k Brevet: Lake Sonoma (Finish)
249mi
02:21+1
⚠ Most riders pick this pace.
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Push
-6% time · faster pace
19:07
Total elapsed
+7:53
Time bank
GCR 400k Brevet: Lake Sonoma (Start)
0mi
06:00
Receipt control - Safeway
50mi
09:18
GCR 400k Brevet: Lake Sonoma (Finish)
249mi
01:07+1
⚠ High fatigue risk in the final stretch.
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Weather
Temp
—
Wind
—
Sunrise
06:30
Sunset
19:45
Fuel + breaks
All stops with a planned break
09:31
Receipt control - Safeway
0m break · Control
50mi
Riders
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GCR 400k Brevet: Lake Sonoma — Weather Forecast
Using ride plan timing for arrival estimates. Adjust the start to recompute.
Fetching route & weather data...
Wind Map
Headwind
Tailwind
Crosswind / Light
Arrow size = wind speed
Wind — total wind speed
Headwind / Tailwind — along riding direction
Weather Along Route
| Distance | Time | Temp | Wind | Direction | Head/Tail | Conditions | Precip |
|---|