We had a player in the past who started with 10K deposit.
He played 1.1 to 1.35 maximum odds in corners ( pre game or live betting ) or over 0.5 goals.
After 10 days he had Over 100K profit but in end of day he cashout 20K total because he lost 9 games with 1.1 - 1.15 odds ( single and multi betting slips ).

Some players they play small amounts for huge wins and some other players they choose 1-2 betting options per week or per day and bet a lot of money for get a profit.