Aleksei (Белослудцев Алексей) Belosludtsev
Born : 1973 Cat. M50 Ultrarunner since 1998 RUS
34
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
57
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
9
Countries visited ?BELBelgiumCROCroatiaESPSpainFRAFranceITAItalyMNEMontenegroNEDNetherlandsRUSRussiaSUISwitzerland
9,4%
Rank quotient ?This runner's calculation uses 36 eligible race(s): Σ(rank − 1) = 646; Σ finishers = 6 894. 646 / 6 894 × 100 = 9.37%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed58
Km — ultra races5 308 km
> 100 km11
> 160 km8
> 200 km7
> 24h7
> 48h4
Longest race344,0 km

Km per year (ultra races)

2022
241
1 race
2023
369
1 race
2024
409
2 races
2025
382
2 races
2026

Race types (share of distance)

Road31,0%
Trail2,4%
Stage36,9%
Elim.21,9%
?7,8%

Wins & podiums (ultra)

🏆 Win5
🏆 Win M5
🏅 Top 317
🏅 Top 3 M17
Longest winning streak1
Current streak0

HISTORY

48 race(s) · 3 split(s) nested
DateRacePerf.Rk
2026
23.05 Backyard Ultra RUS2nd Backyard-Ultra Mari Forest Run 107.296 km (16h)37
07.03 Backyard Ultra RUS1st Backyard Ultra - Mari Forest SnowRun 274.946 km (41h)13
2025
26.07 Backyard Ultra RUS4. Biotropika Ultra Trail 160.944 km (24h)25
08.03 Backyard Ultra RUS1st Backyard Ultra-Mari Forest Run 248.122 km (37h)11
2024
27.07 Backyard Ultra RUS3. Biotropika Ultra Trail 127.414 km (19h)52
25.05 Backyard Ultra RUS3. St.Petersburg Backyard Ultra 2024 241.416 km (36h)8
2023
28.07 Backyard Ultra RUS2. Biotropika Ultra Trail 241.416 km (36h)4
2020
17.10 47km CRO19. Memorijalni Ultramaraton Stage 5: Osijek – Vukovar 5:06:25 h3 🥉
16.10 84km CRO19. Memorijalni Ultramaraton Stage 4: Slavonski Brod – Osijek 8:10:17 h2 🥈
15.10 90km CRO19. Memorijalni Ultramaraton Stage 3: Novska – Slavonski Brod 8:27:01 h3 🥉
14.10 72km CRO19. Memorijalni Ultramaraton Stage 2: Ivanić Grad – Novska 6:21:13 h3 🥉
13.10 50.6km CRO19. Memorijalni Ultramaraton Stage 1: Zagreb–Ivanić Grad 4:49:30 h4
13.10 344km/5stages CRO19. Memorijalni Ultramaraton Zagreb-Vukovar 32:54:26 h2 🥈
2019
01.10 344km/5stages CRO18. Memorijalni Ultramaraton Zagreb-Vukovar 37:30:49 h2 🥈
2016
24.07 50km RUSGolden Ring 50 km Ultra Trail 5:06:35 h37
2010
27.03 50km MNE10. Podgorica 50km Ultramarathon 3:20:46 h2 🥈
2009
15.09 344km/5stages CRO8 Memorijalni Ultramaraton Zagreb-Vukovar 28:02:28 h1 🏆
25.04 50km ITA28^ 50 km di Romagna 3:26:38 h13
01.03 6h NED14de Zes uurs ultraloop Stein 85.004 km1 🏆
30.01 6h RUSIX. Moscow Night Ultramarathon 6h 82.250 km5
30.01 100km RUSIX. Moscow Night Ultramarathon 100km 7:26:48 h2 🥈
2008
13.06 100km RUS100 km Championship of Sverdlovsk region 8:29:13 h3 🥉
19.04 50km RUS50 km Championship of Russia, Puschino 3:24:13 h2 🥈
30.03 61.3km CRO33. Supermaraton Zagreb-Cazma 3:59:19 h3 🥉
25.01 6h RUSVIII. Moscow Night Ultramarathon 6h 55.400 km31
25.01 50km RUSVIII. Moscow Night Ultramarathon 6h - 50km Split 3:22:59 h3 🥉
2007
18.09 344km/5stages CRO6 Memorijalni Ultramaraton Zagreb-Vukovar 28:28:45 h1 🏆
05.05 100km RUSXVI. 24h 'Sutki Begom' Moskau - 100km Split 8:01:40 h1 🏆
05.05 6h RUSXVI. 24h 'Sutki Begom' Moskau - 6h Split 75.200 km3 🥉
05.05 12h RUSXVI. 24h 'Sutki Begom' Moskau - 12h Split 133.200 km3 🥉
05.05 24h RUSXVI. 24h 'Sutki Begom' Moskau 134.800 km41
2006
09.12 50km ESP100km Ultrafondo de La Pobla de Vallbona - 50km Split 3:29:45 h3 🥉
09.12 100km ESP100km Ultrafondo de La Pobla de Vallbona 7:09:57 h2 🥈
27.05 100km ITA34^ 100 km del Passatore, Firenze-Faenza 7:30:39 h5
24.05 6h ESP6 Horas Nocturnas de San Sebastian de los Reyes 89.486 km2 🥈
2005
12.06 100km RUS100 km Championship of Sverdlovsk region 7:20:00 h1 🏆
03.04 61.3km CRO30. Supermaraton Zagreb-Cazma 3:58:26 h6
2004
30.05 100km ITAIAU 100km EC Firenze (32^ 100 km del Passatore) 7:01:20 h5
28.03 61.3km CRO29. Supermaraton Zagreb-Cazma 3:39:24 h2 🥈
06.02 6h RUSIV. Moscow Night Ultramarathon 6h 87.265 km2 🥈
2002
21.06 100km BELIAU 100km WC Torhout (23. Nacht van Vlaanderen) 9:09:32 h124
01.02 6h RUSII. Moscow Night Ultramarathon 6h 91.017 km1 🏆
2001
26.08 100km FRAIAU 100km WC Cleder - Open race 8:14:35 h114
26.08 100km FRAIAU 100km WC Cleder 8:14:35 h72
22.04 50km RUS100km Meisterschaft von Russland, Chernogolovka - 50km Split 3:14:13 h5
22.04 100km RUS100km Meisterschaft von Russland, Chernogolovka 6:31:40 h2 🥈
2000
29.07 78km SUI15. Swiss Alpine Marathon 7:17:16 h52
1998
05.04 100km RUSRussian 100 km Championchip Moscow 6:51:16 h4