Masumi Kuwata Opposes ‘Seven-Inning’ Rule for High School Baseball: ‘It Would Sever Our History’

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The story

Former Yomiuri Giants star Masumi Kuwata voiced his opposition to introducing a “seven-inning rule” for high school baseball on the TV program “Sunday Morning,” aired on the 23rd. On 5ch’s live discussion threads, opinions clashed — some called for moving games to domed stadiums to combat the extreme heat, others agreed with Koji Uehara’s concern that the change would mean top-of-the-order batters get disproportionately more at-bats, and still others predicted that powerhouse schools would oppose a seven-inning format simply because it would lead to more upsets.

“Switching to a Seven-Inning Format Would Sever Our History” — Kuwata Voices Opposition to the High School Baseball “Seven-Inning Rule” on “Sunday Morning”

Former Yomiuri Giants star Masumi Kuwata appeared live in the studio on TBS’s “Sunday Morning” (Sundays, 8:00 a.m.) on the 23rd.

The program reported that on the 22nd, in the final of the 108th National High School Baseball Championship, Chiben Wakayama defeated Kendai Takasaki 4-3 to win the title.

Source: news.yahoo.co.jp / Read the original article here

What people said

7AnonymousAug 24, 2026 00:00
This kind of old-guard resistance to change is what's ruining Japan ("rōgai" — a jab at out-of-touch elders who block progress).
Same with the countryside —
stubbornly clinging to local traditions and rules.
41AnonymousAug 24, 2026 00:18
Re: #7
Before turning this into a completely different sport by changing the rules,
wouldn't it make more sense to just narrow it down to about 20 schools and cut the number of games?
17AnonymousAug 24, 2026 00:08
Why can't anyone just say 'play it in a dome'?

Is it because Koshien Stadium is 'tradition' that they keep making kids play under the blazing sun even as it gets hotter every year?
Is forcing players to shave their heads 'tradition' too?

This is basically a cult.
23AnonymousAug 24, 2026 00:10
Re: #17
The people saying 'just play it in a dome' are the ones who really don't get it.
The players definitely want to play at Koshien itself.
58AnonymousAug 24, 2026 00:22
Re: #23
That's definitely just your own assumption.
68AnonymousAug 24, 2026 00:26
Re: #17
Re: #23
Why not just hurry up and turn Koshien into a domed stadium already?
44AnonymousAug 24, 2026 00:19
Seriously, why don't they just make it a dome?
47AnonymousAug 24, 2026 00:19
Re: #44
Because they're tax-sucking pigs.
66AnonymousAug 24, 2026 00:24
Whenever people discuss the summer Koshien tournament, they should first be shown that news footage of the high school tennis girl (JK, slang for a female high schooler) who suffered heat stroke so severe it damaged her brain and left her unable to live a normal life — then let them give their opinion.
71AnonymousAug 24, 2026 00:26
Re: #66
Stuff like that is actually more dangerous during practice, so switching to seven innings wouldn't solve it anyway.
77AnonymousAug 24, 2026 00:29
If they can't put a roof and air conditioning on Koshien,
then just spread the tournament across multiple domed stadiums,
and only hold the semifinals and final at Koshien.
83AnonymousAug 24, 2026 00:32
Re: #77
Part of it is that spectators actually want to watch the players suffer.
It's treated as a symbol of summer.
If the games were played in a comfortable environment, it would honestly feel like something's missing.
That's also why the spring Koshien tournament isn't as popular.
93AnonymousAug 24, 2026 00:36
Wait, does this mean making everything uniformly seven innings?
What's the reason for making it seven innings even in spring, when it isn't even that hot?
If this is about player health, cutting summer games from nine innings to seven isn't really a fundamental fix.
Even at seven innings, if it's still brutally hot, you'll still get heat stroke cases.
100AnonymousAug 24, 2026 00:38
Re: #93
Apparently the real goal is to reduce the burden on volunteers, umpires, and teachers — for teachers it's about work-style reform.
It's also getting harder to sustain the tournament at its current scale, so a big part of this is using the heat-stroke issue as cover to make changes anyway.
104AnonymousAug 24, 2026 00:39
Doesn't soccer also have different match lengths, like 40 minutes or 35 minutes?
111AnonymousAug 24, 2026 00:40
Re: #104
The summer Interhigh tournament (a national high school athletic championship) uses 35-minute halves, yeah.
108AnonymousAug 24, 2026 00:40
If it comes down to seven innings versus a dome, the dome wins, right?
Koshien itself could just start from the quarterfinals.
112AnonymousAug 24, 2026 00:41
Re: #108
What about the qualifying rounds, then?
109AnonymousAug 24, 2026 00:40
As for 'what to protect' — shouldn't protecting the spectators and players from the scorching heat of 'Calf-shien' (a mocking pun swapping 'Koshien' for characters meaning 'calf pen') be the priority?
Does this guy see it differently?
115AnonymousAug 24, 2026 00:42
Re: #109
If that's the priority, then they need to do something about playing games at Koshien in the middle of the day at all.
113AnonymousAug 24, 2026 00:41
Given that both team rosters and the number of participating schools are shrinking,
they need to make the summer tournament sustainable going forward.
124AnonymousAug 24, 2026 00:44
A seven-inning format will never pass — powerhouse schools will oppose it because it means more upsets.
Same deal in mahjong: online mahjong data shows strong players have a harder time winning in East-only games (tonpuusen) than in full matches (hanchan).
147AnonymousAug 24, 2026 00:54
Re: #124
Well yeah, tonpuusen is half the length.
126AnonymousAug 24, 2026 00:45
On the flip side, are there any pro or ex-pro baseball players who actually support the seven-inning rule?
132AnonymousAug 24, 2026 00:49
Re: #126
Nope, not one.
The only people pushing the seven-inning idea are outsiders who don't understand baseball at all. They're squawking about it without knowing a thing. The players and everyone around them want nine innings, 100%.
136AnonymousAug 24, 2026 00:50
Re: #126
Of course there aren't any — if it changed, their own stats would drop, their salary would drop. Nothing good comes of it for them.
144AnonymousAug 24, 2026 00:53
Re: #144
Before that, you should also mention what Uehara said: 'I'm against it because with only seven innings, the bottom of the batting order might only get two at-bats.' Kuwata agreed with that and then went on to make the comment above. It's not just about tradition.
150AnonymousAug 24, 2026 00:56
Re: #144
What baseball people don't get is dumb —
they don't realize the value of a hit would go up by 30% too.
They're so used to dragging every game out inning after inning while worrying about what the coach thinks and being controlled by him that they never even notice what that means.
Seven innings = baseball stripped down to its purest appeal, 'taipa' baseball (slang for 'time-performance,' i.e. time-efficient).

What disappears first won't be tradition — it'll be the coaches.

If people understood that, pretty much everyone would be in favor.

Background and Key Points

Koshien is shorthand for two things at once: the 100-year-old stadium near Osaka and the national tournament held there, currently the summer edition just concluded with Chiben Wakayama’s 4-3 win over Kendai Takasaki in the 108th championship. The tournament is single-elimination, drawn from prefectural qualifiers involving thousands of schools, and August games are played in early-afternoon heat that regularly exceeds 35°C. Kuwata and Uehara are not neutral commentators — both are former star pitchers (Kuwata at PL Gakuen and the Yomiuri Giants, Uehara in NPB and MLB) who built careers inside the exact system now under review, including customs like shaved heads and nine full innings as markers of seriousness.

The thread’s actual fault line isn’t “shorten games” versus “keep tradition” — almost everyone agrees the heat is dangerous. The split is over *which fix* addresses it: seven innings, moving games into a domed stadium, or trimming the field of participating schools. Posters were skeptical seven innings solves anything, since heat stroke risk doesn’t scale neatly with innings played.

What the thread barely touches is the administrative motive behind the proposal: Japan’s “work-style reform” push to cut hours for teachers, many of whom coach and umpire unpaid, and a tournament under strain from shrinking squad rosters as the youth population declines. One poster alludes to this, but most of the debate stays fixated on heat and tradition, missing that the seven-inning idea is as much about sustaining a shrinking system as protecting players.

*This article is compiled from excerpts and a summary of the 5ch (Geinou/Sports News+) thread “[Baseball] Masumi Kuwata Voices Opposition to High School Baseball’s ‘Seven-Inning Rule’… “It Would Sever Our History” “The Perspective of What We’re Protecting Matters”.”

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