I don't understand the question... the in-game news is pretty clear about how many fragments are available where, I think? You don't need to be top 2 in any tournament IF you can get the available fragments in all the tournaments/events - which means you should already have 30 today from the ones that already ended, then get 40 more from the currently ongoing champion training and dungeon divers, then get the last 30 from the summon rush and the next champion training. 

If you think you will only get to 70 fragments from all the tournaments/events, then even being first in every tournament won't be enough, because that's only 20 more fragments. You might be able to buy the last 10 fragments directly afterwards, but that's not guaranteed. 

That answered my question. Thanks. i tought i have to also be in top 2 to get that +5 fragments to reach 100 but with the next 2 tourmanents i hope i should get 100. already have 30 and on course to get the other 40 fragments. Thanks.