Cho Oyu | 2016 NW side

A Japan expedition to Cho Oyu in 2016 via NW side, led by Ryuseki Hiraoka. Summit reached on 30th September 2016. 7 members recorded.

Expedition Details

Field	Value
ID	9220
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY16308
Peak ID	CHOY
Year	2016
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Ryuseki Hiraoka
Sponsor	Ryuseki Expeditions Cho Oyu 2016
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	Lhasa->Tingri
Basecamp Date	2016-09-11
Summit Date	2016-09-30
Summit Time	0845
Summit Days	19
Total Days	23
Termination Date	2016-10-04
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	4
Summit Members	4
Member Deaths	0
Total Hired	3
Summit Hired	3
Hired Deaths	0
No Hired	False
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(11/09,5000m),ABC(13/09,5700m),C1(22/09,6400m),C2(28/09,7140m),Smt(30/09)
Route Notes	BC 11/09 5000m ABC 13/09 5700m C1 22/09 6400m C2 28/09 7140m Smt 30/09 by Ryuseki Hiraoka, Rumiko Saito, Yoshiki Sakai, Katsunobu Shibata, Pemba Nuru Sherpa, Ngima Nurbu Sherpa, Pasang Tendi Sherpa at 8:45 am. Summit team left C2 at 12:10 am. Just before the rock band they got stuck in a bit of a traffic jam, but otherwise straightforward climb. They spent about 40 minutes on the summit. They descended to C1, where they arrived at 6 pm. Next day ABC. Oxygen: Taken and used from C1 to top to C1 by all members From C2 to top to C2 by Sherpas
Accidents	-
Achievement	-
Agency	Mountain Experience
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2463323
Year	2016
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	67249
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16308
Member ID	01
Peak ID	CHOY
Year	2016
Season	3
First Name	Ryuseki
Last Name	Hiraoka
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	47
Citizenship	Japan
Status	Leader
Residence	Hokuto, Yamanashi, Japan
Occupation	Alpine guide
Leader	True
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2016-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0845
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	C1 to smt to C1
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	(1968-2024) Died 10 June 2024 on Spantik (Pakistan) from avalanche
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2438065
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ryuseki hiraoka
Year of Birth	1968
Year	2016
Age at Expedition	48
Role	Leader

Field	Value
ID	67250
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16308
Member ID	02
Peak ID	CHOY
Year	2016
Season	3
First Name	Rumiko
Last Name	Saito
Sex	F
Age	0
Birth Date	-
Year of Birth	1972
Calculated Age	44
Citizenship	Japan
Status	Climber
Residence	Mazuru, Kyoto, Japan
Occupation	Office worker
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2016-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0845
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	C1 to smt to C1
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	2439277
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	rumiko saito
Year of Birth	1972
Year	2016
Age at Expedition	44
Role	Member

Field	Value
ID	67251
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16308
Member ID	03
Peak ID	CHOY
Year	2016
Season	3
First Name	Yoshiki
Last Name	Sakai
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	56
Citizenship	Japan
Status	Climber
Residence	Kasukabe, Saitama, Japan
Occupation	Tax collector
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2016-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0845
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	C1 to smt to C1
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	2434916
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yoshiki sakai
Year of Birth	1960
Year	2016
Age at Expedition	56
Role	Member

Field	Value
ID	67252
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16308
Member ID	04
Peak ID	CHOY
Year	2016
Season	3
First Name	Katsunobu
Last Name	Shibata
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	50
Citizenship	Japan
Status	Climber
Residence	Kitakyuusyu, Fukuoka, Japan
Occupation	Computer engineer
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2016-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0845
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	C1 to smt to C1
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	2437002
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	katsunobu shibata
Year of Birth	1965
Year	2016
Age at Expedition	51
Role	Member

Field	Value
ID	67253
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16308
Member ID	05
Peak ID	CHOY
Year	2016
Season	3
First Name	Nima Nurbu
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1980
Calculated Age	36
Citizenship	Nepal
Status	H-A Worker
Residence	Thamiteng, Khumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2016-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0845
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	C2 to smt 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	4th ascent of Cho Oyu; aka Nima Nurbu Lama
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2442184
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nima nurbu sherpa
Year of Birth	1980
Year	2016
Age at Expedition	36
Role	Hired

Field	Value
ID	67254
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16308
Member ID	07
Peak ID	CHOY
Year	2016
Season	3
First Name	Pemba Nuru (Kaila)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1973
Calculated Age	43
Citizenship	Nepal
Status	H-A Worker
Residence	Pare, Khumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2016-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0845
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	C2 to smt 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	2439618
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pemba nuru (kaila) sherpa
Year of Birth	1973
Year	2016
Age at Expedition	43
Role	Hired

Field	Value
ID	67255
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16308
Member ID	06
Peak ID	CHOY
Year	2016
Season	3
First Name	Pasang Tendi
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1988
Calculated Age	28
Citizenship	Nepal
Status	H-A Worker
Residence	Yilajung, Khumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2016-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0845
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	C2 to smt 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	2445259
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pasang tendi sherpa
Year of Birth	1988
Year	2016
Age at Expedition	28
Role	Hired

7 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Ryuseki Hiraoka	M	1968	Japan	Leader	Hokuto, Yamanashi, Japan	Alpine guide	Details Other expeditions
Rumiko Saito	F	1972	Japan	Climber	Mazuru, Kyoto, Japan	Office worker	Details Other expeditions
Yoshiki Sakai	M	1960	Japan	Climber	Kasukabe, Saitama, Japan	Tax collector	Details Other expeditions
Katsunobu Shibata	M	1965	Japan	Climber	Kitakyuusyu, Fukuoka, Japan	Computer engineer	Details Other expeditions
Nima Nurbu Sherpa	M	1980	Nepal	H-A Worker	Thamiteng, Khumbu	-	Details Other expeditions
Pemba Nuru (Kaila) Sherpa	M	1973	Nepal	H-A Worker	Pare, Khumbu	-	Details Other expeditions
Pasang Tendi Sherpa	M	1988	Nepal	H-A Worker	Yilajung, Khumbu	-	Details Other expeditions

References

0 recorded references.