Calling all math heads , probability question.

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Ok i bought 10 bucko tickets and won 375 dollars. For those who do not know how the game works you get three random sets of 5 numbers for a dollar. the prize for 4 out of five is 100 dollars.The odds stated on the site are 1/4163 of this happening.Now i am wondering what is the chance of it happening 3 times in a row.Now technically i had 10 tickets so how would this affect the probability? i multiplied 4163 by itself twice and got like 1 in 72 billion chance of this happening.Is my math wrong? anyway totally unbelievable? in a good way!:) ps one of the tickets i won a 75 dollar bonus with a chance at like 1/2500.