I run in Ateneo every time I prepare for an upcoming race. My route is usually around the high school parking lot or around the Bellarmine field if I wake up early. On the other hand, if I wake up late, I run at the oval track in the Moro Lorenzo gym.
I was happy when my friend informed me that there are actually 3k and 5k route maps available online. I never got the chance to search for them until now.
Here's one version taken from the RUN with M.E. event last July 2009.
Click here to check another version of the 5K Ateneo route from MapMyRun.