About Jajanken's Data

The following describes how Weekly Shonen Jump data is handled and interpreted on this site:

General Rules

  • The Table of Contents (ToC) page and the way manga titles are presented in it serves as the guideline for whether they count towards ToC position. Main emphasis is placed on whether manga titles are shown in its own individual item in the primary Table of Contents area.
  • At Jajanken, one-shots also count toward ToC position - not just serialized manga.
  • When making decisions such as whether to count a certain manga towards ToC position or not, classifying one-shots vs serializations, etc. best effort is made to adhere to the criteria listed here. Please note, however, that some subjectivity may exist.
  • Though Jajanken strives to present data accurately as possible, erroneous information and inconsistencies may be posted due to typos, data source issues (e.g. writing style differences, errors), bugs from maintaining this website, lack of references and information, etc. Data may also be updated without prior notice. Please browse only for getting the general idea.

Detailed Rules

  • When classifying one-shot vs serialized title, its notation on the magazine cover and/or Table of Contents page is prioritized. When such notation doesn't exist or is ambiguous, other factors are taken into account, such as the era of serialization, number of chapters published, and information from other sites.
  • When the same manga has multiple chapters in the same issue, only the chapter with the highest position is used. Even in cases where a one-shot (side-story) is published along with the main story, the chapter with the higher position is prioritized irrespective of one-shot or main story.
  • Fill-in one-shots (due to missed deadline or lack of pages) could be treated equally to serialized manga or not listed at all in the Table of Contents (ToC). Therefore, the inclination is to count them towards ToC positioning regardless of the number of pages.
  • Some reasons why Jajanken went with a policy of counting one-shots towards Table of Contents position are that early Shonen Jump magazines consisted mostly of one-shots, as well as the difficulty of classifying one-shot vs serialization in early works. On the other hand - inclusion of one-shots cause an increase in cases where multiple manga titles are listed in a single Table of Contents item (e.g. double listings, shorts collections, 4-komas), a deviation from the general one manga per Table of Contents item practice. When dealing with these irregularities, additional factors considered are number of times the manga title has been published in the past, number of manga titles, and number of pages. While there is no set way for handling these situations, careful attention is made to not cause drastic inflation in number of Table of Contents (ToC) items, and therefore ToC positioning.
  • For color pages, the "Color" designations do not differentiate between 2-color and 4-color.


One-shot One-shots, side-stories, etc.
Lead Color Lead color
Color Center color
Start Start serialization
End End serialization
Republish A chapter previously published on Shonen Jump is republished. Not counted towards Table of Contents position and chapter count. The only occurrences are likely "Kinnikuman" (chapters from "Kinnikuman: Scramble for the Throne" arc republished during hiatus) and "Kochikame" (1st chapter republished in full color for 40th anniversary)?
Jump-in-Jump 2004 Issue 18 - 2004 Issue 21 included one-shots in a supplementary booklet called "Jump-in-Jump". Counted for chapter count, because the treatment is similar to lead color in Table of Contents. Not counted for Table of Contents position because the booklet is separate from the main magazine.