I play on euro servers. So im having a hard time to get the hands into the converter. Maybe im doing something wrong, anyway:

This is the info i have on this hand:

This is the  a 300E+20E tournament with around 600 players. Starting at 5000. Alot of satellite (like me).

Im starting in middle position with 1010 and about 6k stack at 75/150. no antes.

(I just copypasted this hand when i played it so i dont have all stacksizes.) But:

utg +1 miniraises for 300. He has about 6k.

I came to this table for around 20 hands ago and i havnt seen him play 1 pot.I looked him up on sharkscope and he has

abi : 93
games played: 134

profit 6k 

I call with 1010 pre. I dont wanna face a 4bet that i cant call. So i rahter just flat. To timid?

Flop comes: 5s6h9c he bets 525 into 675. A pretty big bet. It may be like AK, AQ that just wanna make me fold small pp, AK, AQ, AJ or it may be like AA,KK,QQ maybe some sets that want max value.

I still feel like i haft to call on this flop, i mean what flop was i hoping for?

The turn brings a 6s. 

If he has like AA, KK , QQ he will just check/call this street its my thinking.This since i can have sets and maybe 78, 89 and connectors like that.

So rather then bet i check and hope to check the pot down. 

River is  a 5h. So its now 5s6h9c 8s 5h. Now he thinks for a will and then bets 6k into the around 2k pot. 

I have 1010 and about 6 k in the stack. He may think that since i checked the turn i cant have a str8 and i probly dont have set. So maaaaybe he is getting sick value with AA, KK. There is allways a chance he has a weird 7 that wanted to checkraise the turn. but since he allmost knows i dont have a str8 or a set maybe he can make this move with AK, AQ.

What do you think i should do?