Candidates
海保 杜久麻 — Tokyo 8th District 2026
Updated 25 Tháng 5, 2026
- chevron_rightOutcome: Lost in Tokyo 8th District (2026) — 11,419 votes (4.7%), rank #4 of 7.
- chevron_rightProfile: Male, age 31. Background: 会社員. Status entering: Newcomer.
fact_check Quick Facts
Age
31 yrs
Gender
male ♂ Male
Election Date
Th10 22, 2026
System
Single-member
Seats Recorded
—
Election Performance
Vote Count & Share
Votes
11,419
Vote Share
4.7%
Rank
#4
Outcome
Lost
Win/Loss Outcome
Outcome
Did not win seat in 2026
Political Context
Party Affiliation
Reiwa
れいわ
Party Candidates 2026
19
Party Seats Won
1
Prefectures
17
Avg Share
7.2%
Occupation & Background
Category会社員
Detail元ホンダ社員
Incumbency & Career Wins
- Status entering the 2026 election: Newcomer
- Age at time of election: 31
Comparative Snapshot
Same District Rivals
| Rank | Candidate | Party | Votes | Share |
|---|---|---|---|---|
| #1 | 門 寛子 | LDP | 108,020 | 44.3% |
| #2 | 吉田 晴美 | Centrist | 77,620 | 31.8% |
| #3 | 森田 一成 | DPP | 26,989 | 11.1% |
| #4 | 海保 杜久麻 this page | Reiwa | 11,419 | 4.7% |
| #5 | 永井 漠 | Sanseito | 10,642 | 4.4% |
| #6 | 大谷 司郎 | 保守 | 8,110 | 3.3% |
| #7 | 藤原 幸弘 | Independent | 1,111 | 0.5% |
Same-Party Peers in 2026
- 楾 大樹 — Hiroshima 1st District, 4.6% (Lost)
- 山口 孝司 — Nagano 3rd District, 4.9% (Lost)
- 八幡 愛 — Osaka 13th District, 4.9% (Lost)
- 辻 恵 — Aichi 15th District, 4.9% (Lost)
- 鈴木 智 — Shizuoka 4th District, 5.0% (Lost)
Candidates with Similar Vote Share
- 柴田 民雄 (JCP, Aichi 3rd District) — 4.7%
- 前 久 (JCP, Wakayama 1st District) — 4.7%
- 伊藤 純子 (保守, Gunma 2nd District) — 4.7%
- 浦野 真 (JCP, Chiba 6th District) — 4.8%
- 内田 隆英 (JCP, Nagasaki 1st District) — 4.8%
Tokyo 8th District Historical Context
| Year | Winner | Party | Winning Votes | Winning Share | Field Size | Margin |
|---|---|---|---|---|---|---|
| 2026 | 門 寛子 | LDP | 108,020 | 44.3% | 7 | 30,400 |
| 2024 | 吉田 晴美 | CDP | 116,426 | 51.1% | 4 | 41,463 |
| 2021 | 吉田 晴美 | CDP | 137,341 | 48.4% | 3 | 31,960 |
Tokyo Snapshot (2026)
Districts
30
Candidates
154
Seats Filled
30
Active Parties
12
Party representation across Tokyo
LDP30 cand · 30 won
Sanseito30 cand · 0 won
DPP27 cand · 0 won
Centrist24 cand · 0 won
JCP13 cand · 0 won
Ishin11 cand · 0 won
Minor Parties6 cand · 0 won
Independent4 cand · 0 won
Mirai3 cand · 0 won
保守2 cand · 0 won
減ゆ2 cand · 0 won
Reiwa2 cand · 0 won
Top performers across Tokyo (2026)
| Candidate | District | Party | Votes | Share | Result |
|---|---|---|---|---|---|
| 伊藤 達也 | Tokyo 22nd District | LDP | 132,689 | 51.5% | Won |
| 鈴木 隼人 | Tokyo 10th District | LDP | 126,044 | 49.1% | Won |
| 福田 かおる | Tokyo 18th District | LDP | 117,383 | 47.7% | Won |
| 平 将明 | Tokyo 4th District | LDP | 114,054 | 49.4% | Won |
| 長島 昭久 | Tokyo 30th District | LDP | 110,453 | 45.2% | Won |
| 松島 みどり | Tokyo 14th District | LDP | 109,892 | 50.2% | Won |
| 井上 信治 | Tokyo 25th District | LDP | 109,606 | 50.5% | Won |
Where 海保 杜久麻 ranks
Among Reiwa single-member candidates in 2026
Higher vote share than 16.7% (3 of 18)
Among ALL single-member candidates in 2026
Higher vote share than 6.8% (76 of 1119)
会社員 cohort (2026)
Cohort Size
74
Cohort Wins
3
Cohort Avg Share
14.0%
Cohort Avg Age
43
海保 杜久麻's 4.7% vote share is 9.32 percentage points below the 会社員 cohort average for 2026.
Frequently Asked Questions
Who has won Tokyo 8th District in recent elections?expand_more
Recorded winners of Tokyo 8th District: 門 寛子 (2026); 吉田 晴美 (2024); 吉田 晴美 (2021).
How many Tokyo districts ran candidates in 2026?expand_more
Tokyo had 30 districts with 154 total candidates in 2026, of whom 30 won seats.
Did 海保 杜久麻 win the 2026 election?expand_more
海保 杜久麻 did not win the 2026 House of Representatives race in Tokyo 8th District, recording 11,419 votes (4.7%).
Which party did 海保 杜久麻 represent?expand_more
海保 杜久麻 ran as a Reiwa candidate. The party fielded 19 candidates in 2026.
Who won Tokyo 8th District in 2026?expand_more
門 寛子 (LDP) won Tokyo 8th District with 108,020 votes, a vote share of 44.3%.