We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.
This is a fiction/fan codex: entries describe an in-universe canon. Our audits check canon and internal consistency — external fact-checking does not apply the way it does on real-subject codexes.
Last full accuracy audit: 2026-08-20 · 28 entries checked · 11 flagged · 24 issues confirmed · 11 corrected · 13 still open
Tanaka Ryuunosuke — Tanaka was not a middle school player who transitioned into a support staff role; he was a regular starter as a wing spiker throughout high school.
Tanaka Ryuunosuke — Tanaka's middle school background is not detailed in canon, so the claim that he was 'often being overshadowed by more serious players' in middle school is not established.
Yamaguchi Tadashi — Yamaguchi's position number is 11, not 12.
Yamaguchi Tadashi — Yamaguchi was not a wing spiker in middle school; he was a middle blocker in middle school as well, as shown in flashbacks.
Suna Rintarou — Suna Rintarou has no confirmed older brother who played volleyball and stopped due to injury; the name Suna Ryuunosuke is fan-created and not canon.
Haikyuu!! Main Cast — The claim 'Karasuno and Shiratorizawa faced off in the Miyagi Prefecture finals during Karasuno's first year' is incorrect; they faced in the semifinals of the Spring High Miyagi Qualifiers.
Kitagawa Daiichi High School Volleyball Club — The entry lists 'Key Rivals' as including Nekoma, but Nekoma is a Tokyo-based high school, not a junior high school in Miyagi Prefecture, and has no known rivalry with Kitagawa Daiichi Middle School in canon.
Kitagawa Daiichi High School Volleyball Club — The entry lists 'Key Rivals' as including Karasuno and Aoba Johsai, but these are high schools, not junior high schools; Kitagawa Daiichi is a middle school, and no direct rivalry with these high schools is established in canon.
Date Tech High School — The entry overstates Date Tech's rivalry with Seijoh as a 'legendary historical rivalry', which is not supported by canon.
Aoba Johsai High School — Tooru Oikawa was captain during his third year, but after his graduation the captaincy passed to others like Hajime Iwaizumi or later players.
Aoba Johsai High School — Aoba Johsai's mascot is not a frog; it is a crow based on the school's emblem and name references.
Hinata Shoyo First Spike — The event occurs during a practice game at Kitagawa Daiichi Middle School, but in canon, Hinata's first spike happens during a practice match at Yukigaoka Middle School, not Kitagawa Daiichi.
Hinata Shoyo First Spike — The entry states Hinata was the only regular member of the boys' volleyball club at Kitagawa Daiichi, but in canon, Hinata attended Yukigaoka Middle School, where he was the sole member of the boys' volleyball club.
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