My top5 races, please check them out!
Factory run
Game Mode: Land race
Description: Tight turns around the factory.
Link: http://socialclub.rockstargames.com/games/gtav/jobs/job/87LTOAK9GUiCd2at2YuhBg?platformId=2
The Penris loop
Game Mode: Land race
Description: Join the Slaad crew in the legendary Penris loop with fast vehicles.
Link: http://socialclub.rockstargames.com/games/gtav/jobs/job/H88v5Z427kWCOb1lrqYzpw?platformId=2
Slaad's ramp fever II
Game Mode: Land race
Description: Slaadians loves curves! Join us to the 2nd ramping race for fast vehicles.
Link: http://socialclub.rockstargames.com/games/gtav/jobs/job/NlX-8RJ1_0ug7qsGDBgbgQ?platformId=2
Real country loops
Game Mode: Land race
Description: The Rebel Radio's real country looping race for nimble vehicles.
Link: http://socialclub.rockstargames.com/games/gtav/jobs/job/XcDJW39n6EmsjO9OKaTvow?platformId=2
Slaad's rally-cross
Game Mode: Land race
Description: Short loop, half sand, half asphalt. Designed for multiple lap races and any vehicles.
Link: http://socialclub.rockstargames.com/games/gtav/jobs/job/AcRmR_1zxEu-301YBJMiUA?platformId=2
Those are my own top5 favourites, but in total i have made over 50 premium races. No jumps(except bmx tracks) and no stupid tricks. Great tracks for the adult drivers who loves to drive!