15 - Meisetsu Kougyou Koukou Rugby Bu 14 (end)
Because it's been so long between chapter releases, I ended up re-reading the whole series before reading this chapter. As a whole, I love the series- it has a very nice juxtaposition of soft, shounen-ai style art with a very violent and fast-paced game, and it works really well. The story has a nice progression to it as well- the mangaka probably knew this wasn't going to be a long series, and structured it in a way that would tell a complete story, having the team play 3 games of rugby.
...except the 3rd game never happens. Instead, this final chapter is a very cheesy and forced way to wrap up the story, and it kinda soured me on the whole experience. It's completely unrealistic, and throws away all of the build-up from the previous 5 chapters. In all honesty, I kinda wish I never read this last chapter.
Series is still worth reading, but you might as well skip the finale.