Any tips for the next marathon?

My rating is not more than 2100 in blitz and I want to play at least 22 hours.Can I finish top 100 with 100% berserk?

dont go for 100% zerk, you will tilt as you will lose many games, rather I suggest you to zerk less and focus more on playing good
as it is about quality not quantity, I once got top 50 with only 16 hours lichess.org/tournament/autumn23

Train your stamina.

@panagiskosmatos said in #1:
> My rating is not more than 2100 in blitz and I want to play at least 22 hours.Can I finish top 100 with 100% berserk?

no you can not

You should be ok with Top 500

@Cedur216 it is too easy for me to finish top 500 that's why I want to finish top 100 now

too easy with 2000 blitz? If you want Top 100, you should probably have at least 2300 blitz. Check the most recent marathons to see what rating you most likely need.

When is the next marathon?

It is on May the 5th 5+0 @Arjan_chess2