Cho Oyu | 2003 NW side

A Russia expedition to Cho Oyu in 2003 via NW side, led by Sergei Petrov. Summit reached on 5th October 2003. 5 members recorded.

Expedition Details

Field	Value
ID	4466
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY03322
Peak ID	CHOY
Year	2003
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Russia
Leaders	Sergei Petrov
Sponsor	Angarsk Himalaya Expedition
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	KTM->Zangmu->Tingri->BC
Basecamp Date	2003-09-14
Summit Date	2003-10-05
Summit Time	1500
Summit Days	21
Total Days	25
Termination Date	2003-10-09
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	5
Summit Members	2
Member Deaths	0
Total Hired	0
Summit Hired	0
Hired Deaths	0
No Hired	True
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(14/09,4700m),ABC(17/09,5700m),C1(19/09,6400m),C2(25/09,7100m),C3(27/09,7500m),Smt(05/10)
Route Notes	Started 3 Oct from C1. 4 Oct Efimov and Petrov reached 6300-6400m and decided to go back to C1. Naoumov and Vinogradski started from C2 at 8:40 Nepali time, C3 at 11:30, summited at 3 pm, to C2 at 5:30 pm. One Norwegian woman was going down. C3 at 11:30 followed the Greek team. On the summit made pictures. Donskoy - only C1 19 Sept Efimov - 6300-6400m Naoumov - summit Petrov - 6300-6400m Vinogradski arrived BC on 17 Sept, C1 on 19th, C2 on 28th, summit on 5 Oct
Accidents	-
Achievement	-
Agency	Asian Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2458296
Year	2003
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	34679
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03322
Member ID	02
Peak ID	CHOY
Year	2003
Season	3
First Name	Konstantin
Last Name	Donskoy
Sex	M
Age	0
Birth Date	-
Year of Birth	1954
Calculated Age	49
Citizenship	Russia
Status	Climber
Residence	Angarsk, Russia
Occupation	Manager of building supplies company
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	6400
Summit Date 1	2003-09-21
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	19
HCN	0
Checksum	2432900
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	konstantin donskoy
Year of Birth	1954
Year	2003
Age at Expedition	49
Role	Member

Field	Value
ID	34680
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03322
Member ID	03
Peak ID	CHOY
Year	2003
Season	3
First Name	Sergei Borisovich
Last Name	Efimov
Sex	M
Age	0
Birth Date	-
Year of Birth	1944
Calculated Age	59
Citizenship	Russia
Status	Climber
Residence	Ekaterinburg (Sverdlovsk), Russia
Occupation	Manager of sports fund
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	6300
Summit Date 1	2003-10-04
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	2
Summit Term	19
HCN	0
Checksum	2429276
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	sergei borisovich efimov
Year of Birth	1944
Year	2003
Age at Expedition	59
Role	Member

Field	Value
ID	34681
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03322
Member ID	04
Peak ID	CHOY
Year	2003
Season	3
First Name	Oleg
Last Name	Naoumov
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	38
Citizenship	Russia
Status	Climber
Residence	Angarsk, Russia
Occupation	Manager of building supplies company
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-10-05
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1500
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	2 bottles from C3 to summit to C2
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2436905
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	oleg naoumov
Year of Birth	1965
Year	2003
Age at Expedition	38
Role	Member

Field	Value
ID	34682
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03322
Member ID	01
Peak ID	CHOY
Year	2003
Season	3
First Name	Sergei
Last Name	Petrov
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	45
Citizenship	Russia
Status	Leader
Residence	Angarsk, Russia
Occupation	Director of the building supplies company employing members
Leader	True
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	6300
Summit Date 1	2003-10-04
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	2
Summit Term	19
HCN	0
Checksum	2434401
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	sergei petrov
Year of Birth	1958
Year	2003
Age at Expedition	45
Role	Leader

Field	Value
ID	34683
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03322
Member ID	05
Peak ID	CHOY
Year	2003
Season	3
First Name	Evgeni
Last Name	Vinogradski
Sex	M
Age	0
Birth Date	-
Year of Birth	1946
Calculated Age	56
Citizenship	Russia
Status	Climber
Residence	Ekaterinburg (Sverdlovsk), Russia
Occupation	Physician
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-10-05
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1500
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	2 bottles from C3 to summit to C2
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2430093
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	evgeni vinogradski
Year of Birth	1946
Year	2003
Age at Expedition	57
Role	Member

5 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Konstantin Donskoy	M	1954	Russia	Climber	Angarsk, Russia	Manager of building supplies company	Details Other expeditions
Sergei Borisovich Efimov	M	1944	Russia	Climber	Ekaterinburg (Sverdlovsk), Russia	Manager of sports fund	Details Other expeditions
Oleg Naoumov	M	1965	Russia	Climber	Angarsk, Russia	Manager of building supplies company	Details Other expeditions
Sergei Petrov	M	1958	Russia	Leader	Angarsk, Russia	Director of the building supplies company employing members	Details Other expeditions
Evgeni Vinogradski	M	1946	Russia	Climber	Ekaterinburg (Sverdlovsk), Russia	Physician	Details Other expeditions

References

0 recorded references.