Here are links to the PREP preliminary results (click on state names), updated around 2:30 AM Mexican time
Mexico State - Eruviel Ávila (PRI) ahead around 62 percent
Coahuila - Rubén Moreira (PRI) has around 60 percent
Nayarit - Roberto Sandoval (PRI) ahead around 42 percent
Hidalgo state election (municipalities only) - results not ready from the state's electoral institute yet, but PRI seems to ahead in at least 42 muncipalities, or half of the 84 in play, including the state capital Pachuca.
A great day to be a priísta.