Sure.It's possible,but it's very diffcult to make.
1.Speedhacks,usually there is a very high multipie of speed,like 64x,128x,etc..The fastest hack that i ever saw,is 1200x(in fact it's 800x).And as you know,our graphic card(s) can't reach this speed(Geforce 8800 Ultra Sli cant do this,too).And because of PING,we cant reach this speed too.So,use your calculate,that's not too accurate.
2.CS is not American drag races,we can't promise that we walk straight.So we need to know the length of the route he walked.But with high speed and PING,we cant know it and calculate it well.
Waiting for the flyers of programming.
PS:I only know a few of VB.