Is that court testimony? I have read several news stories containing portions of the testimony and none have described how she/they got outside.
Also, neither the victim nor the assailant could give testimony for how long the crime/encounter lasted.
Lastly, the tow people who came across the crime scene were not "at the party."
No, that is not court testimony.
Haven’t seen any transcripts of court testimony.
However, there is the 55 page police report. SEE LINK.
That may be more accurate than the court testimony. We have all the witness statements before they are coached by their attorneys.
https://assets.documentcloud.org/documents/1532973/complaint-brock-turner.pdf