Candidates
坂本 祐之輔 — Saitama 10th District 2026
Updated 25 Tháng 5, 2026
- chevron_rightOutcome: Lost in Saitama 10th District (2026) — 77,485 votes (44.7%), rank #2 of 2.
- chevron_rightProfile: Male, age 71. Background: 首長. Status entering: Incumbent.
- chevron_rightCareer wins to date: 4
fact_check Quick Facts
Age
71 yrs
Gender
male ♂ Male
Election Date
Th10 22, 2026
System
Single-member
Seats Recorded
—
Election Performance
Vote Count & Share
Votes
77,485
Vote Share
44.7%
Rank
#2
Outcome
Lost
Win/Loss Outcome
Outcome
Did not win seat in 2026
Political Context
Party Affiliation
Centrist
中道
Party Candidates 2026
244
Party Seats Won
49
Prefectures
58
Avg Share
30.3%
Occupation & Background
Category首長
Detail元埼玉県東松山市長
Incumbency & Career Wins
- Status entering the 2026 election: Incumbent
- Total recorded wins to date: 4
- Age at time of election: 71
Comparative Snapshot
Same District Rivals
| Rank | Candidate | Party | Votes | Share |
|---|---|---|---|---|
| #1 | 山口 晋 | LDP | 95,847 | 55.3% |
| #2 | 坂本 祐之輔 this page | Centrist | 77,485 | 44.7% |
Same-Party Peers in 2026
- 逢坂 誠二 — Hokkaido 8th District, 44.7% (Lost)
- 笠 浩史 — Kanagawa 9th District, 44.8% (Lost)
- 大串 博志 — Saga 2nd District, 44.5% (Lost)
- 野田 佳彦 — Chiba 14th District, 45.0% (Won)
- 緑川 貴士 — Akita 2nd District, 45.0% (Lost)
Candidates with Similar Vote Share
- 武田 良太 (LDP, Fukuoka 11th District) — 44.7%
- 逢坂 誠二 (Centrist, Hokkaido 8th District) — 44.7%
- 谷 公一 (LDP, Hyogo 5th District) — 44.6%
- 大西 洋平 (LDP, Tokyo 16th District) — 44.6%
- 笠 浩史 (Centrist, Kanagawa 9th District) — 44.8%
Career Timeline
Elections
4
Career Wins
2
Total Votes
265,291
Best Vote Share
59.0%
| Year | District | Party | System | Votes | Share | Rank | Result |
|---|---|---|---|---|---|---|---|
| 2026 | Saitama 10th District | Centrist | Single-member | 77,485 | 44.7% | #2 | Lost |
| 2024 | Saitama 10th District | CDP | Single-member | 97,591 | 59.0% | #1 | Won |
| 2021 | Saitama 10th District | CDP | Single-member | 90,214 | 48.4% | #2 | Lost |
| 2021 | Northern Kanto Block (PR Block) | CDP | PR Block | 1 | 0.0% | #11 | Won |
Saitama 10th District Historical Context
| Year | Winner | Party | Winning Votes | Winning Share | Field Size | Margin |
|---|---|---|---|---|---|---|
| 2026 | 山口 晋 | LDP | 95,847 | 55.3% | 2 | 18,362 |
| 2024 | 坂本 祐之輔 | CDP | 97,591 | 59.0% | 2 | 29,827 |
| 2021 | 山口 晋 | LDP | 96,153 | 51.6% | 2 | 5,939 |
Saitama Snapshot (2026)
Districts
16
Candidates
55
Seats Filled
16
Active Parties
9
Party representation across Saitama
LDP16 cand · 16 won
Centrist12 cand · 0 won
Sanseito8 cand · 0 won
JCP6 cand · 0 won
DPP5 cand · 0 won
Ishin4 cand · 0 won
Independent2 cand · 0 won
Reiwa1 cand · 0 won
Minor Parties1 cand · 0 won
Top performers across Saitama (2026)
| Candidate | District | Party | Votes | Share | Result |
|---|---|---|---|---|---|
| 村井 英樹 | Saitama 1st District | LDP | 121,002 | 55.7% | Won |
| 柴山 昌彦 | Saitama 8th District | LDP | 118,529 | 52.4% | Won |
| 田中 良生 | Saitama 15th District | LDP | 114,320 | 52.3% | Won |
| 大塚 拓 | Saitama 9th District | LDP | 112,062 | 55.0% | Won |
| 穂坂 泰 | Saitama 4th District | LDP | 110,312 | 52.9% | Won |
| 中野 英幸 | Saitama 7th District | LDP | 107,470 | 57.2% | Won |
| 井原 隆 | Saitama 5th District | LDP | 104,836 | 47.4% | Won |
Where 坂本 祐之輔 ranks
Among Centrist single-member candidates in 2026
Higher vote share than 95% (192 of 202)
Among ALL single-member candidates in 2026
Higher vote share than 79.5% (890 of 1119)
首長 cohort (2026)
Cohort Size
27
Cohort Wins
10
Cohort Avg Share
34.4%
Cohort Avg Age
60
坂本 祐之輔's 44.7% vote share is 10.26 percentage points above the 首長 cohort average for 2026.
Frequently Asked Questions
How many times has 坂本 祐之輔 run for the House of Representatives?expand_more
坂本 祐之輔 has appeared in 4 recorded elections, winning 2 of them. The most recent was 2026.
Who has won Saitama 10th District in recent elections?expand_more
Recorded winners of Saitama 10th District: 山口 晋 (2026); 坂本 祐之輔 (2024); 山口 晋 (2021).
How many Saitama districts ran candidates in 2026?expand_more
Saitama had 16 districts with 55 total candidates in 2026, of whom 16 won seats.
Did 坂本 祐之輔 win the 2026 election?expand_more
坂本 祐之輔 did not win the 2026 House of Representatives race in Saitama 10th District, recording 77,485 votes (44.7%).
Which party did 坂本 祐之輔 represent?expand_more
坂本 祐之輔 ran as a Centrist candidate. The party fielded 244 candidates in 2026.
Who won Saitama 10th District in 2026?expand_more
山口 晋 (LDP) won Saitama 10th District with 95,847 votes, a vote share of 55.3%.