Marina (Жалыбина Марина) Zhalybina

Born : 1975 Cat. W50 Ultrarunner since 2009

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

Latvia

Netherlands

South Africa

Russia

3,4%

Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 966; Σ finishers = 28 149. 966 / 28 149 × 100 = 3.43%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed15

Km — ultra races1 049 km

Longest race100,0 km

IAU 100km EC (RUN Winschoten 100 km) — 12/9/2015

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road59,4%

Trail23,8%

?16,7%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F5

🏅 Top 30

🏅 Top 3 F10

Longest winning streak0

Current streak0

Records

50 km3h29'27 100 km7h34'09 6 h75,52 km

HISTORY

16 race(s) · 2 split(s) nested

Date		Race	Perf.	Rk
2018
22.07	50km	Golden Ring 50 km Ultra Trail	4:50:02 h	32
13.06	50km	Crazy Owl 50	4:44:23 h	20
2017
23.07	50km	Golden Ring 50 km Ultra Trail	5:00:06 h	27
07.05	6h	4th Wings for Life World Run	47.280 km	328
2016
24.07	50km	Golden Ring 50 km Ultra Trail	4:30:21 h	8
2015
12.09	50km	40. RUN Winschoten 100 km - 50km Split	3:42:13 h	79
12.09	100km	IAU 100km EC (RUN Winschoten 100 km)	7:34:09 h	46
12.09	100km	IAU 100km WC (RUN Winschoten 100 km)	7:34:09 h	60
12.09	100km	40. RUN Winschoten 100 km - open race	7:34:09 h	64
02.08	50km	Golden Ring 50 km Ultra Trail	3:59:45 h	6
31.05	87km	90th Comrades Marathon - Up Run	7:18:33 h	266
2013
25.08	50km	Daugavpils 50 km race	3:35:17 h	9
2012
19.08	50km	Daugavpils 50 km race	3:29:27 h	7
03.06	89km road race	87th Comrades Marathon - Down Run	6:30:54 h	91
2009
30.01	6h	IX. Moscow Night Ultramarathon 6h	75.520 km	12
30.01	50km	IX. Moscow Night Ultramarathon 6h - 50km Split	3:54:11 h	14
30.01	50mi	IX. Moscow Night Ultramarathon 6h - 50mi Split	6:26:33 h	10
30.01	100km	IX. Moscow Night Ultramarathon 100km	8:07:20 h	5

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	12/9/2015	IAU 100km EC (RUN Winschoten 100 km)	100,00	×4
✓ 2	30/1/2009	IX. Moscow Night Ultramarathon 100km	100,00	×4
✓ 3	3/6/2012	87th Comrades Marathon - Down Run (RSA)	89,00	×3
✓ 4	31/5/2015	90th Comrades Marathon - Up Run	87,00	×3
✓ 5	22/7/2018	Golden Ring 50 km Ultra Trail	50,00	×2
✓ 6	13/6/2018	Crazy Owl 50	50,00	×2
✓ 7	23/7/2017	Golden Ring 50 km Ultra Trail	50,00	×2
✓ 8	24/7/2016	Golden Ring 50 km Ultra Trail	50,00	×2
✓ 9	2/8/2015	Golden Ring 50 km Ultra Trail	50,00	×2
✓ 10	25/8/2013	Daugavpils 50 km race	50,00	×2
✓ 11	19/8/2012	Daugavpils 50 km race	50,00	×2
✓ 12	7/5/2017	4th Wings for Life World Run	47,28	×1