Where does the manga for Beyblade original series end in comparision to the anime? I found on the web that there are some differences in the storyline of the manga and the anime (English) of Beyblade (original series). In my quest to know the differences I tried to find the manga online (legal), but I've yet to know for certain how many volumes/chapters (of the manga) are available for the original Beyblade series. Wikipedia shows that there are 14 issues available. But the description about Vol. 14 here is the source of confusion for me. It says:


  It's down to the final battle in the G.B.C.--the ultimate test to see which team will earn the title of Beyblade world champions! Tyson's grandfather and friends start celebrating victory before the final battle even takes place--but will the BBA Revolution actually win?





   I just completed the series and the aforesaid description fits into Episode 30 of the Season 3 G-Revolution where BBA team stands victorious in final round of Beyblade World Championship. Also, Season 3 ran for 52 episodes and the episodes after Episode 30 dealt with a challenge named BEGA. 


This is exactly my confusion. If I consider the description then it means almost 40 p.c. of anime aren't present in the last issue, Vol. 14 of manga series, and this seems to be a major difference.

Now, it all comes down to the following points:


Am I missing something about manga of the said series?
Could it be that the said description is incomplete or wrong?
Where does the final issue of manga end?
Would manga be enough to reflect the complete storyline of anime? Meaning, does there exist mini-series too?
Optional: where can I buy/get the complete manga for the said series?
The Bakuden Shoot Beyblade manga by Aoki Takao is the basis for seasons 1 to 3 of the original anime series. Episode 51 of season 3, G-Revolution, correlates to chapter 3 (the final chapter) of volume 14 of the manga. Chapter 3 of manga volume 14 does not correspond to G-Revolution episode 30.

Spoiler for final pages of manga chapter 3 and episode 51:


   Taichi and Kai stand poised to battle one more time, but the battle itself and its results are not shown. 


G-Revolution episode 52 features


  a giant vortex crisis and then wraps up with showing images of every team and major character that appeared in the entire 3 seasons.


The contents of that episode are not covered in the manga.

Manga volume 14 includes a manga version of the Bakuten Shoot Beyblade The Movie: Gekitou!! Takao vs. Daichi direct-to-DVD anime film.

Volume 14 also features an epilogue one-shot manga about the children of the main characters (who are now grown up). This epilogue was not animated.

Finally, Aoki Takao commissioned novelist Tachimori Megumi to write a Bayblade gaiden (side story) short novel titled Bakuden Shoot Beyblade Gaiden -Yuriy Ivanov- for which he provided the illustration, which is free to read on his official website. Fans have made an English translation of it here. This novel was not animated.

There was also a spin-off manga from the original series titled Seidoushi BLADERS -Beyblade Battle Story- written by Miyazaki Masaru and illustrated by 印照 (whose romaji name I can't find anwhere. It might be pronounced "Shirushi Shou" or "Shirushi Teru"), collected into 3 volumes. Its content is not depicted in the anime at all.

Fans have discussed some differences between the manga and the anime in this forum.

You also mentioned the English-language version of the anime. Since the English dub contains a large amount of edits from the original anime, the dub version does not match the original manga closely. You can see the dub changes from the original anime listed here.