Su-Lan (周素兰) Zhou
Born : 1984 Cat. W40 Ultrarunner since 2017 CHN
48
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
2
Countries visited ?CHNChinaHKGHong Kong
22,1%
Rank quotient ?This runner's calculation uses 49 eligible race(s): Σ(rank − 1) = 5 081; Σ finishers = 22 972. 5 081 / 22 972 × 100 = 22.12%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed50
Km — ultra races3 530 km
> 100 km9
> 160 km2
Longest race168,0 km

Km per year (ultra races)

270
4 races
2022
506
8 races
2023
265
4 races
2024
511
8 races
2025
105
2 races
2026

Race types (share of distance)

Road1,4%
Trail95,9%
Stage2,6%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F4
🏅 Top 30
🏅 Top 3 F15
Longest winning streak0
Current streak0

HISTORY

49 race(s)
DateRacePerf.Rk
2026
29.03 50km CHN1st JinJiang Three Mountains Cross Trail Race 7:13:23 h179
21.03 34mi CHN7th Mt. Gaoligong - Tea & Horse Trail 7:36:51 h121
2025
21.12 50km CHN1st WAXE Frog Shell Hainan Tropical Rainforest 5:59:17 h25
22.11 50km CHN1st JiangZhe ZhiDian QianBa 50km 8:38:09 h23
01.11 50km CHN10th Ultimate Tsaigu Trail Kuocang - 50 km 7:32:50 h551
01.11 105km CHN10th Ultimate Tsaigu Trail Kuocang - 105 km 24:11:41 h554
07.06 50km CHN1st Jiuzhaigou 100 Ultra Trail - CCLH50 12:11:07 h172
20.04 50km CHN4th Qing Long YanYue Dao Adventure Race 6:22:21 h6
18.01 100km HKG15th Hong Kong 100 Ultra Trail Race 19:18:38 h521
17.01 56km HKG15th Hong Kong 100 Ultra Trail Race - Half 7:32:56 h85
2024
19.10 60km CHN10th Ninghai Ultra Trail - 50km 8:52:49 h348
31.03 55km CHN3rd Welnig Golden Coast Run 8:22:11 h114
23.03 50km CHN1st Ultra Trail Mt.Huangshan Series 6:39:30 h26
20.01 100km HKG14th Hong Kong 100 Ultra Trail Race 18:57:54 h215
2023
11.11 60km CHN1st Moganshan 100 Ultra Trail 10:00:11 h92
28.10 55km CHN8th Ultimate Tsaigu Trail Kuocang - 55 km 8:30:10 h227
22.10 55km CHN6th China 100 mountain cross - 55 km Chengdu 8:17:46 h152
14.10 55km CHN5th Jiangnan Skyrace - 55 km 9:55:28 h151
02.09 56km CHN7th Trail Mt Wugong 50 km 10:37:14 h107
15.04 109.6km CHN9th Ninghai Ultra Trail - 100km 16:43:24 h80
02.04 55km CHN2nd Welnig Golden Coast Run 7:30:54 h48
18.03 60km CHN5th Xihong Old Road Ultra Trail - 60 Spring 8:41:20 h8
2022
26.11 50km CHN5th China 100 mountain cross - 50 km Chengdu 6:36:55 h17
05.11 115km CHN7th Ultimate Tsaigu Trail Kuocang - 115 km 22:25:30 h47
30.10 50km CHN1st Taishun Red Ancient Road Cross Country Race 6:32:37 h9
28.08 55km CHN6th Huangshan 55 km - UTHZ 8:10:15 h6
2021
27.06 55km CHN1st Yixing Bamboo Sea Elite Cross Country Race - 55km 10:52:18 h9
22.05 100.1km CHN5th Nanjing Laoshan National Forest Park 100 Cross 16:34:49 h39
21.03 50km CHN1st Mingyue Mountrain Ultra Trail 8:12:35 h58
01.01 100km CHN1st 1390 Archipelago Trail - 100km 25:51:29 h24
2020
12.12 52km CHN1st Ningbo 50 7:04:51 h20
28.11 50km CHN5th Wenling Doumi Peak 50 Trail 7:20:47 h11
14.11 110km CHN6th Jiangnan 100 Ultra Trail - 110km 17:06:42 h8
31.10 50.8km CHN3rd Qingyuan Ancient Bridge Ultra Trail 6:30:15 h23
17.10 100km CHN2nd Jiangnan Skyrace - 100 km 33:06:39 h33
19.09 100.1km CHN4th Nanjing Laoshan National Forest Park 100 Cross 16:29:10 h10
26.06 100km CHN2nd Lianyungang Shanhai 100 Cross-Country 19:54:10 h9
30.05 55km CHN5th Mount Zu Trail Qinhuangdao 55km 9:24:20 h10
16.05 93km/2stages CHN1st Jiangnan Ultramarathon - Ningbo 14:01:21 h15
2019
15.12 50km CHN4th Wenling Doumi Peak 50 Trail 7:35:11 h16
09.11 50km CHN1st YYsports Go wild 50 km 7:08:46 h18
07.09 56km CHN5th Trail Mt Wugong 56 km 13:10:30 h98
08.06 102.5km CHN2nd Explore the West of Dalian 100 km 18:32:59 h11
12.04 100mi CHN5th Jiangnan 100 Ultra Trail - 100mi 35:33:02 h43
31.03 50km CHN1st Lishui Ultra Marathon 4:31:04 h345
24.03 50km CHN5th Daluoshan Trail Run 50K 7:42:45 h17
2018
13.07 168km CHN2nd Columbia 168 Ultra Trail Chongli Challenge Race 47:33:14 h161
2017
14.10 100km CHN5th Ninghai Ultra Trail - 100km 25:13:14 h208
16.04 70km CHN3rd Daluoshan Trail Run 70K 15:32:58 h60