David Lawson
ID 1651871
Born : 1978 Cat. M45 Ultrarunner since 2021 USA
12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
1
Countries visited ?USAUnited States
12,5%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 129; Σ finishers = 1 032. 129 / 1 032 × 100 = 12.50%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed12
Km — ultra races630 km
Longest race80,5 km
38th Silver State 50 Mile — 20/5/2023

Km per year (ultra races)

200
4 races
2022
80
1 race
2023
200
4 races
2024
2025
50
1 race
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 33
🏅 Top 3 M3
Longest winning streak1
Current streak0

Records

50 km4h23'4550 mi10h29'46

HISTORY

12 race(s)
DateRacePerf.Rk
2026
11.04 50km USA6th Lake Sonoma 100K & 50K 5:40:33 h34
2024
13.07 50km USA15th San Lorenzo River Trail Run 5:21:00 h2 🥈
06.04 50km USA15th Diablo Trails Challenge 6:05:39 h10
02.03 50km USA3rd North Marin Ridge 50km Run 5:26:05 h2 🥈
27.01 50km USA12th Fort Ord 50K Trail Run 5:02:01 h5
2023
20.05 50mi USA38th Silver State 50 Mile 10:29:46 h19
2022
17.12 50km USA11th Woodside Ramble 50K - Winter 5:05:59 h12
12.11 50km USA10th Mt. Tam Trail Run 5:56:43 h15
16.04 50km USA6th Napa Valley 50k Trail Race 6:40:33 h6
26.03 50km USA1st South Hills Single Track Trail Run - Spring 4:23:45 h1 🏆
2021
23.10 50km USA38th Quicksilver 50 km Endurance Run 5:01:48 h16
24.07 50km USA9th Fort Ord 50K Trail Run 5:18:21 h19