In 2010, we had 10 mock tests and 16 monthly tests. That is a total of 26 tests (one test per fortnight on an average). That is excluding 2 weekends for ISC 2010 and IPC 2010.

We've many players participating most of these tests.
Rohan played all except mock20, mock21
Neeraj played all except mock20 and Hotpot
Amit played all except mock13, Speed Sixes
caudmont played all except mock12 and Decathlon
Rishi played all except Niokli Selections and Decathlon
Rakesh missed just one - mock13
Branko missed just one - Renban
Nikola missed just one - mock18

But one player didn't miss any test in 2010 - That is Gotroch - he played all 26 tests, a perfect score in 2010

Congrats Gotroch and all others!

There are 8 players who have participated in all 16 monthly tests.
Alphabetically, they are
deu
Gotroch
Kota
misko
Nikola
rakesh_rai
Rohan Rao
willwc