Betfair (Betdaq) Matching Process

[Betscrew]

Hi folks.
Just wondering if anyone knows how the Betfair (and/or Betdaq) matching process works. Is it first in, first filled or pro-rata?

For example, if I put a bet in for 100 and somebody joins me with another 2 (102 in total), what happens if someone trades 100 at the price. Do I get the full 100 (for being first in) or is it split with the guy that wants 2 quids worth (eg, 98/2)?

Thanks,
Betscrew

[vanbuuts]

It’s first come first served

[Betscrew]

Thanks for taking the time to answer.