ATHENS, Ga. — The chilling 911 call that captured the horrific final moments of Georgia nursing student Laken Riley was played in court Friday — leaving her grieving mother in a flood of tears during the first day of opening statements.

Riley, 22, activated the emergency function on her cell phone and called 911 while running on the University of Georgia campus around 9:11 a.m. on Feb. 22, prosecutor Sheila Ross said in an Athens-Clark County courtroom.

Only a man’s voice could be heard on the short, muffled audio played in the courtroom.

Those in the courtroom listened as the operator repeated himself and said, “Clark County 911. Hello, Clark County 911. Can anyone hear me?”

The call ended at 9:12 a.m. and the operator tried to call back but got no answer, Ross explained.

Riley’s mother, Allyson Phillips, was seen sobbing during the 911 call.

The suspect, Jose Ibarra, sat stone-faced as the phone call was played in the courtroom.

Earlier in opening statements, prosecutors explained how Riley fought for life for as many as 18 minutes.

Ibarra, the state alleged, was “hunting for women” on the picturesque Athens campus when he encountered Riley.

“When Laken Riley refused to be his rape victim, he repeatedly hit her skull with a rock,” Sheila Ross alleged.

‘The evidence will show that Laken fought. She fought for her life, she fought for her dignity, and in that fight she caused this defendant to leave behind forensic evidence. She also marked her killer for all the world to see.”

One of Riley’s friends alerted authorities that she could not return home from her run later that morning.

The nursing student’s body was found shortly after noon in a wooded area off the running trail.

When The Post first contacted the Athens-Clarke County coroner the day after Riley was killed, the office said there was “evidence of foul play” at the scene and it was clear she had been violently killed.