Diamond no Ace Wiki
Sensen Academy vs. Seidou High
Score 3-8
Winner Seidou High
Manga Chapter 123-133
Anime Episode 41-44
Tournament West Tokyo Tournament

The Sensen Academy vs. Seidou High match is a high school baseball semi final match, held during the 89th National High School Baseball Championship qualifiers. This match was held on July 29th.

Starting Members[]

  • 1st - Kuramochi Youichi
  • 2nd - Kominato Ryosuke
  • 3rd - Isashiki Jun
  • 4th - Tetsuya Yūki
  • 5th - Masuko Tōru
  • 6th - Miyuki Kazuya
  • 7th - Sakai Ichirou
  • 8th - Tanba Kōichirō
  • 9th - Shirasu Kenjirou

  • 1st -
  • 2nd -
  • 3rd -
  • 4th -
  • 5th -
  • 6th -
  • 7th -
  • 8th -
  • 9th -


Inning 1 2 3 4 5 6 7 8 9 Total
Seidou High 0 0 0 0 0 4 3 0 1 8
Sensen Academy 0 0 1 0 0 1 0 0 1 3

Summary of the Game[]

Isashiki's liner to third.

Both Sensen and Seidou started with their respective aces. In the bottom of the third, runners on first and second, Sensen is up by one. Sensen takes advantage of Tanba's bad fast balls and Miyuki calls the curve for the third out. Top of the fourth, with the curve, Isashiki hits a strong liner to third but the third baseman catches the ball for an out. Yūki hits another curve, this time getting it past third and gets to second. Masuko hits a bunt at the next at-bat and advances Yūki to third and barely manages to get to first.[1]

The next batter is clutch batter Miyuki with men on first and third. Sensen’s coach calls for Miyuki to get walked through, loading the bases. The seventh batter hits a high fly to the outfield and gets out, Yūki touches back on third and runs home. But he gets tagged out from a relay from the outfield.

In the bottom of the fifth, the score is still 0-1, Sensen on the lead. Tanba’s fastballs still haven’t regained their former form, but his breaking balls are working to get the outs. On the top of the sixth, Ryosuke hits the curve to the outfield and gets the base. Haruichi’s told to get ready to go in to bat and Sawamura’s getting ready to pitch given Tanba’s fatigue. Yūki gets to first with another hit and moves Ryosuke to third. Masuko’s up with Miyuki behind him and he hits a grounder to third. Ryosuke bolts home and slides around the catcher to touch the base and get the run and finally the game is tied at 1-1.

Haruichi smacks away Maki's curve.

The game is tied on top of the sixth and Miyuki is once again walked, loading the bases. Sakai, batting seventh, strikes out. With two outs and the bases loaded, Tanba gets subbed in for Haruichi in the eighth slot. Maki is not happy, and quickly corners Haruichi. Maki throws a curveball next thinking that's it's too early for Haruichi to be wearing Seidou's uniform. But Haruichi hit the curve to deep left field, just over the fielder’s glove. Three base runners come home and he gets a double.

Bottom of the sixth, Sawamura takes the mound[2]. In Sensen's dugout, Maki's teammates encourage him after the coach says he'll be replacing Maki if anything happens. The first batter gets a walk, but Sawamura is being his usual self, shouting out whatever he think. Sensen shows squeeze play next, but actually is a hit and run. The first pitch goes shallow outfield and Ryosuke is just too short to get the out. The third base runner comes in. Miyuki calls for a time-out but Sawamura turns it down, explaining that it's baseball so allowing hits is normal. With runners on first and third, Sensen's next batter follows the same strategy of pressuring Sawamura. The batter pops a fly to second but Ryousuke doesn't get the catch. Sensen takes back one run.

Furuya goes to the bullpen, Sawamura gets pumped. Haruichi goes to the mound bearing Kataoka's message that Masuko's bald head will distract the team. They’re trying to relax Sawamura, but Miyuki only rile him up. Miyuki’s goading him on and he’s trying to make him play his best right after being at his lowest. Sawamura will now face Sensen's ace, Maki.

Sawamura after striking out Maki.

Sawamura face-off with Maki. On the first pitch, Maki hits the ball but is a foul ball. Sawamura is shocked and becomes tense as he throws far outside despite Miyuki calling for an inside pitch. Sawamura remembers Raichi's homerun hit back in the quarter-finals. The third pitch goes foul down the first base line and Sawamura’s even more shaken up. But despite this, the four-seam fastball to the inside is what Miyuki calls for and the pitch goes through safely, but the pitch seems off. It seems to go a little too far inside, but it’s called a strike and Maki gets called out.[3]

Sawamura passes the baton to Nori, who successfully close the game. Seidou wins and are advancing to the Finals.


  1. Anime Episode 42
  2. Chapter 129
  3. Anime Episode 44


Act I
Kanto Tournament
Yokohama Kouhoku Institute vs. Seidou High
89th Summer Koshien: West Tokyo Qualifiers
Maimon West High vs. Seidou HighPuplic Murata East High vs. Seidou HighAkikawa Academy vs. Seidou HighYakushi High vs. Seidou HighSensen Academy vs. Seidou HighSakurazawa High vs. Inashiro IndustrialSeidou High vs. Inashiro Industrial
Fall Tournament: Block Games
Seidou High vs. Metropolitan MinoSeidou High vs. Seishou Academy
Fall Tournament
Seidou High vs. Teitou HighSeidou High vs. Nanamori AcademySeidou High vs. Ugumori HighSeidou High vs. Ouya MetropolitanSeidou High vs. Seiko AcademySeidou High vs. Yakushi High
Act II
84th Spring Kōshien
Seidou High vs. Komadai Fujimaki
Spring Tournament: Tokyo Metropolitan
Inashiro Industrial vs. Yakushi HighSeidou High vs. Ichidaisan High
90th Summer Kōshien: West Tokyo Qualifiers
Yura Sougou vs. Seidou HighHachiya Ouji vs. Seidou HighYakushi High vs. Ichidaisan HighNorikane Academy vs. Seidou HighSeidou High vs. Sousei HighSeidou High vs. Ichidaisan HighSeidou High vs. Inashiro Industrial