|Birthdate||October 4, 1994|
|Current Age||28 Years Old|
|Social Networks||7gogo / Ameblo / Instagram / SHOWROOM / Twitter / Weibo|
|Idol Career Info|
|Debuted||September 2011 / 13th Generation|
- 1 Catchphrase
- 2 Trivia
- 3 History
- 4 AKB48 Senbatsu Elections
- 5 AKB48 Janken Tournaments
- 6 Team History
- 7 Singles Participation
- 8 Albums Participation
- 9 Units
- 9.1 Stage Units
- 9.2 Concert Units
- 9.2.1 AKB48 Group Kenkyuusei Concert ~Oshimen Hayai Mono Gachi~
- 9.2.2 AKB48 8th Anniversary
- 9.2.3 AKB48 Kouhaku Utagassen 2013
- 9.2.4 Unit Matsuri 2014
- 9.2.5 AKB48 Zenkoku Tour 2014
- 9.2.6 AKB48 Kouhaku Utagassen 2014
- 9.2.7 AKB48 Group Douji Kaisai Concert in Yokohama ～Kotoshi wa Rank in Dekimashita Shukugakai～
- 9.2.8 AKB48 13th Generation Stage in TDC ～Ima, Yaru Shikaneen Dayo!～
- 9.2.9 AKB48 Group Kanshasai ~Rank in Concert~ (Senbatsu Sousenkyo Rank-in (17th-80th) members performance)
- 9.2.10 AKB48 Group Kanshasai ~Rank in Concert~ (Senbatsu Sousenkyo Rank-in (17th-100th) members performance)
- 9.2.11 AKB48 Zenkoku Tour 2019
- 9.2.12 AKB48 Group Request Hour Setlist Best 50 2020
- 9.2.13 2020 AKB48 shin Unit Live Matsuri Kaisai Kettei no Oshirase
- 9.2.14 MX Matsuri! AKB48 60th Single "Hisashiburi no Lipgloss" Announcement Commemoration Concert in Budokan 2022
- 10 Media Appearances
- 11 Gallery
- 発声練習はじめます！ やっほー、さっほー、28歳、さっほーこと岩立沙穂です。
- Hassei renshuu hajimemasu! Yahhoo, Sahhoo, 28-sai, Sahhoo koto Iwatate Saho desu.
- (I'll start with vocal exercises! Yahhoo, Sahhoo, I'm Iwatate Saho, also known as Sahhoo, 28 years old.)
- Hobbies: Aromatherapy, photography
- Favorite subject: World history, Japanese language. She says Japanese is her specialty.
- Likes: Spicy food, eating grasshoppers
- Favorite animal: Capybara
- Good friends with: Mogi Shinobu, Muto Tomu
- She was the first person to bathe with Mogi.
- Admired members: Kashiwagi Yuki
- Future ambition: A multi-talent who can work as a reporter
- Oldest member in AKB48 13th Generation
- She failed AKB48's 11th and 12th Generation Auditions.
- She has a younger brother
- She has liked idols since she was six years old. In middle school she particularly liked Morning Musume.
- She was high school classmates with Nogizaka46's Nakada Kana.
- She enrolled in a junior college in 2013 and graduated in 2015.
- She considers herself a calm and considerate person, but also indecisive. Staff members have praised her for being hardworking and gutsy, while former member Nakamura Mariko said she has a classic idol aura, reminiscent of Matsuda Seiko.
- She has a burikko ("cutesy girl") character.
- She is famous for regularly eating grasshoppers, as her family has eaten them for a long time. When she took her college entrance exam, her mother packed her a bento and spelled "Ganba" (good luck) in grasshoppers on top of the rice.
- Her unflinching love of grasshoppers was featured in AKBINGO! as well. A Muchaburi Dodgeball segment called "Sahhoo Gohan" was created, where Saho would prepare foods with grasshoppers to feed to members as a punishment for getting out in the dodgeball game.
- She likes France and has been studying French for several years.
- She has passed many qualification tests, such as a Level 3 qualification in French, a Grade 1 qualification in aromatherapy, Kanji Kentei Level 2, Eating Habits Advisor Grade 3, and Cosmetics Certification Grade 2.
- She can recite the first 50 digits of pi.
- She once posted support messages through Google+ to a fan that was thinking about committing suicide.
- In August 2018 she ranked first in the AKB48 Stage Fighter game "Final Center Battle".
- On September 24th, passed the auditions for 13th Generation.
- On December 8th, during the 6th Year Anniversary Commemorative Performance, had her theater debut with the other members of the 13th Generation for Aitakatta.
- On August 5th, passed 6th Kenkyuusei Selection.
- In April, passed the center examination for university.
- On August 24th, on the third day of the Tokyo concert for the AKB48 5 Big Dome Concert Tour, was promoted to Minegishi Team 4.
- On August 27th, had first appearance on AKBINGO!.
- On November 3rd, was a shonichi member for Te wo Tsunaginagara.
- On February 24th, during the AKB48 Group Daisokaku Matsuri, it was announced she would stay with Minegishi Team 4.
- On April 15th, was a senshuuraku member of Te wo Tsunaginagara.
- On April 24th, was a shonichi member of Idol no Yoake.
- On June 7th, during the 6th Senbatsu Election, placed for the first time at 66th place.
- On March 20th, graduated from junior college.
- On March 26th, during the AKB48 Spring Shuffle 2015, it was announced she would stay with Takahashi Team 4.
- On August 24th, was a senshuuraku member of Idol no Yoake.
- On September 17th, was the seventh member to be announced for Seishun wa made owaranai.
- On October 13th, appeared in AKB Horror Night Adrenaline no Yoru.
- On December 3rd, was a shonichi member for Yume wo Shinaseru Wake ni Ikanai.
- On June 18th, during the 8th Senbatsu Election, ranked back in at 51st after not placing at all the year prior.
- On June 15th, was announced as a contestant on the Korean idol survival show Produce 48.
- Ranked in Class B after the initial evaluation.
- Ranked in Class B after the re-evaluation.
- Performed AKB48's High Tension during the first performance round. Her position was center. Her team lost.
- Performed BTS' "The Truth Untold" during the second performance round. She placed third within her team.
- Was elimited in Episode 8 at 40th place with a total of 288,890 votes.
- On January 19, had a joint leading role together with Sugawara Maya in the horror movie "Horror Channel".
- On May 2nd, during Takahashi Juri's graduation stage, was named the new captain of Team B (Iwatate Team B).
- On September 3rd, had her final appearance on AKBINGO!.
- In the January issue of the magazine BIG ONE GIRLS, was featured in an interview alongside the AKB48 Soukantoku and other captains (Mukaichi Mion, Okabe Rin, Komiyama Haruka, Murayama Yuiri).
- On December 8th, at the AKB48 16th Anniversary Team Shuffle, it was announced she would be transferred to Mukaichi Team A and therefore lose her captain role for Team B.
- On March 1st, appeared in vol. 6 of the online magazine "TABILISTA".
- On March 19th, was part of the senshuuraku performance for Team B's Theater no Megami stage.
- On April 19th, transferred to Mukaichi Team A.
- On July 16th and 23rd, appeared in episodes 9 and 10 of AKB48 no Uta (AKB48の歌).
AKB48 Senbatsu Elections
- 4th Senbatsu Election - Not Ranked
- 5th Senbatsu Election - Not Ranked
- 6th Senbatsu Election - #66 (Upcoming Girls)
- 7th Senbatsu Election - Not Ranked
- 8th Senbatsu Election - #51 (Future Girls)
- 9th Senbatsu Election - #42 (Next Girls)
- 10th Senbatsu Election - #22 (Undergirls)
AKB48 Janken Tournaments
- 2nd Janken Taikai - Didn't Qualify
- 3rd Janken Taikai - Didn't Qualify
- 4th Janken Taikai - Didn't Qualify
- 5th Janken Taikai - #4 (Lost to Watanabe Miyuki)
- 6th Janken Taikai - Round 2 (Lost to Owada Nana)
- 7th Janken Taikai - Round 2 (Lost to Shiroma Miru)
- AKB48 Kenkyuusei → Team 4 → Team B → Team A
- Sakuranbo to Kodoku (1830m)
- Aozora yo Sabishikunai ka? (1830m)
- Team Zaka (Tsugi no Ashiato)
- Bokutachi no Ideology (Koko ga Rhodes da, Koko de tobe!)
- Namida wa ato Mawashi (Koko ga Rhodes da, Koko de tobe!)
- Nakigoto Time (0 to 1 no Aida)
AKB48 Group Kanshasai ~Rank in Concert~ (Senbatsu Sousenkyo Rank-in (17th-80th) members performance)
AKB48 Group Kanshasai ~Rank in Concert~ (Senbatsu Sousenkyo Rank-in (17th-100th) members performance)
- Yobisute Fantasy (Center)
- Two Roses
MX Matsuri! AKB48 60th Single "Hisashiburi no Lipgloss" Announcement Commemoration Concert in Budokan 2022
- New Team Concert
- Day 3
- Produce 48 (2018)
- Horror Channel (2019)
- AKB48 no Uta (AKB48の歌) (2022) - Episodes 7 & 8
Iwatate Saho 10th Senbatsu Election Poster (2018)
Iwatate Saho (Produce 48) (2018)
Iwatate Saho (2018)
Iwatate Saho 9th Senbatsu Election Poster (2017)
Iwatate Saho (2017)
Iwatate Saho 8th Senbatsu Election Poster (2016)
Iwatate Saho (2016)
Iwatate Saho (2015)
Iwatate Saho (2014)
Iwatate Saho (2013)
Iwatate Saho (Late 2012)
Iwatate Saho (Early 2012)