Minute Query

[Need Help]

i am trying to build a database and need a query build to count times example
Hound Number 999 score 35 Time 11:00
Hound Number 999 score 30 Time 11:05
Hound Number 999 score 25 Time 11:40

i need it to look at the time and anytime that is within 10 minutes of each
other i don't want it to count, but it has to be able to not count the lowest
score for example from the above example
it should keep theses scores
Hound Number 999 score 35 Time 11:00
Hound Number 999 score 25 Time 11:40


Can someone help me please

Thanks
Larry