Sylvia Underwood
ID 934704
Born : 1970 Cat. W55 Ultrarunner since 2017 USA
26
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
38
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
70,6%
Rank quotient ?This runner's calculation uses 26 eligible race(s): Σ(rank − 1) = 1 852; Σ finishers = 2 624. 1 852 / 2 624 × 100 = 70.58%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed26
Km — ultra races1 777 km
> 100 km3
> 160 km2
> 24h1
> 48h1
Longest race160,9 km
2nd Charleston 100 Race — 27/12/2019

Km per year (ultra races)

50
1 race
2022
196
4 races
2023
2024
2025
2026

Race types (share of distance)

Road22,0%
Trail78,0%

Records

50 km6h52'43100 km14h52'2650 mi10h57'35100 mi26h34'0012 h53,11 km48 h49,89 km

HISTORY

26 race(s)
DateRacePerf.Rk
2023
18.11 50km USA4th Wild Florida 50 km Race 8:24:46 h113
01.07 12h USA12th Merrill's Mile 12 Hour Run 46.213 km37
29.04 50km USA1st Troublesome Hollow 50K 7:47:48 h95
31.03 48h USA3rd The Country Mile 48 Hour Race 49.889 km210
2022
13.08 50km USA1st In the Heat of the Night 50km 8:33:41 h44
2020
07.03 50km USA5th Conquer the Rock - Foothills 50K 9:31:12 h80
2019
27.12 100mi USA2nd Charleston 100 Race 30:45:00 h10
18.05 56mi USA7th Cruel Jewel 50 Mile 24:39:13 h89
04.05 50km USA4th Grayson Highlands 50km Race 7:46:46 h151
16.02 50km USA2nd Cloudland Canyon 50 km Race 6:52:43 h85
19.01 50km USA9th Tsali Frosty Foot 50k 7:10:24 h74
2018
08.12 100mi USA4th Daytona 100 - 100 Miles Ultra 26:34:00 h33
10.11 50km USA6th Georgia Sky to Summit 50k 8:43:31 h122
06.10 100km USA2nd Bull Mountain 100 km Epic Run 20:06:03 h10
09.09 50km USA6th Yeti Snakebite 50 km 8:28:22 h63
16.06 12h USA4th Midsummer Nights Dream 12 Hour Ultra 53.108 km26
02.06 50mi USA1st Dam Yeti 50 Mile Race 11:02:15 h55
31.03 68mi USA6th Georgia Death Race 24:36:11 h168
10.03 7h USA2nd Yeti 7 Hour Endurance Run 45.061 km14
10.02 100km USA13th Iron Horse 100 km Endurance Run 14:52:26 h10
20.01 50km USA8th Tsali Frosty Foot 50k 7:45:05 h70
2017
09.12 50mi USA3rd Daytona 100 - 50 Miles Ultra 10:57:35 h13
11.11 50km USA5th Georgia Sky to Summit 50k 10:02:20 h164
07.10 50km USA1st Bull Mountain 50 km Epic Run 7:51:19 h23
26.08 50km USA5th Yeti Snakebite 50 km 8:15:08 h100
25.03 50km USA2nd Cubihatcha Challenge 50K 7:01:08 h19