Summer Koshien· Season 2026
Ariake came from behind to beat Nagasaki Nihondai 3-2 at Koshien, reaching the third round for the first time despite managing only four hits.
Match Videos
Match Analysis
AI SummaryAriake 3-2 Nagasaki Nihondai: First-time participants Ariake rally past Nagasaki rivals to reach Koshien third round
Ariake, the debutants from Kumamoto, came from behind to beat Nagasaki Nihondai 3-2 in the second round of the 108th National High School Baseball Championship at Koshien Stadium on 13 August, reaching the third round for the first time in the school's history — spring or summer.
Ariake managed just four hits against Nagasaki Nihondai ace Koga Tomoki but scored twice in the bottom of the second without a clean hit and added a third in the third inning. Relief pitcher Saito Ryotaro threw five innings of one-run ball after entering in the fifth, slamming the door on a Nagasaki Nihondai side that out-hit Ariake 10-4 but could not overcome costly baserunning mistakes.
How it unfolded
Nagasaki Nihondai struck first in the top of the second. With two outs and runners on the corners, Koike slapped a single through the left side to bring home the opening run.
Ariake answered immediately in the bottom half. A walk and a single put two men on, and Nagasaki Nihondai’s defence unravelled — a throwing error on a pickoff attempt and a subsequent miscue allowed two runs to score, handing Ariake a 2-1 lead.
The lead grew in the third. Leadoff hitter Nagata Haruki, who delivered the go-ahead hit in Ariake’s first-round win over Ritsumeikan Uji, lined a double to the gap. He stole third — his third stolen base of the tournament — and scored on a fielder’s choice grounder by Jitsuda Satoshi, making it 3-1.
Saito took over from starter Ko Takumi to begin the fifth and worked efficiently, inducing weak contact and escaping jams. He held Nagasaki Nihondai scoreless through four innings, allowing six hits but stranding seven runners.
Nagasaki Nihondai mounted a final rally in the ninth. Koike drove in his second run of the game with a groundout to short, cutting the deficit to 3-2. But Saito got the next batter to ground out to second, sealing the win.
The turning point: Nagata’s double and stolen base
Ariake’s third-inning sequence — Nagata’s two-base hit followed by an immediate stolen base — turned a one-run lead into a two-run cushion against a Nagasaki Nihondai team that controlled long stretches of play. Nagata’s speed forced Nagasaki Nihondai’s infield to play in on the grass, and Jitsuda’s chopper found the gap between first and second that normally would not exist. It was the kind of small-ball execution that made the difference against a side with 10 hits but no big inning.
Key performers
Saito Ryotaro (Ariake) — Player of the Match. Entered with a one-run lead in the fifth and threw five innings, allowing one run on six hits with no walks. “I wanted to help the team after they helped me in the first game,” Saito told Mainichi Shimbun, referring to Ariake’s come-from-behind win over Ritsumeikan Uji.
Nagata Haruki (Ariake) — 1-for-3 with a double, a stolen base and a run scored. Ariake’s catalyst at the top of the order has reached base in both Koshien games and scored in each.
Koike (Nagasaki Nihondai) — Drove in both Nagasaki Nihondai runs, singling in the second and grounding out for an RBI in the ninth. The only Nagasaki Nihondai hitter to deliver in scoring position.
Koga Tomoki (Nagasaki Nihondai) — Threw a complete game, allowing three runs (one earned) on four hits with three walks and several strikeouts. Deserved a better result on the scoresheet.
By the numbers — interpreted
Nagasaki Nihondai out-hit Ariake 10-4 but lost. The discrepancy tells two stories: Nagasaki Nihondai left nine runners on base against two for Ariake, and committed two errors — one of which directly led to two unearned runs in the second inning. Ariake’s three errors (all in the field) did not prove costly, as Saito stranded every runner he inherited or put on. The 4-10 hits gap is extreme for a one-run game but reflects Nagasaki Nihondai’s inability to bunch hits together — they collected singles in five different innings but never strung more than two in a frame.
What it means
Ariake advance to the third round for the first time in school history, having entered the 108th Summer Koshien as the Kumamoto representative and a first-time participant. They await the winner of Aomori Yamada vs Higashi Nihon Kokusai Daishohei (Fukushima) on Day 12 (16 August). Ariake’s run carries added emotion — Kumamoto was hit by a magnitude 6.5 earthquake on 28 July, and the team has dedicated its performances to the affected region.
Nagasaki Nihondai exit in the second round for the second consecutive year. They finish with five summer Koshien appearances (2 wins, 5 losses) and have not reached the third round since 2007.
Verdict
Ariake won the tactical battle without winning the hitting battle. Nagata’s speed, Ko’s steady start and Saito’s relief work papered over a thin hitting line-up and a defence that made three errors. Nagasaki Nihondai had the better offensive numbers but lacked the baserunning discipline and defensive composure to convert them. In a single-elimination high school tournament, the team that makes fewer critical mistakes — not the team that collects more hits — advances.
Statistics are for informational purposes only. Past performance does not guarantee future results.
API data: 21 Aug 2026

