After the mission Mr. Philips, the mission in which Trevor is introduced, Offroad Races will appear on the map. Unlike the Hao Street Races, the offroad races can be completed by any Protagonist. To unlock a race, the player must complete the previous race. Earning medals in races counts towards the Hobbies and Pastimes part of the 100% Completion in GTA V.
The race starts at the Raton Canyon near the Pacific Ocean and follows the road towards the Alamo Sea. The race can be completed on either a Motorcycle or an ATV. The reward for winning the race is $500.
Mineward spiral is the second offroad race on an ATV or a motorcycle. It's a race around the Davis Quartz. Winning the race earns the player $500.
This race runs along Cassidy Creek from the Alamo sea towards the ocean, and finishes at the start of the first race, Canyon Cliffs. The race is on ATVs or motorcycles. The reward of this race is $500.
This is the last ATV/Motorcycle race. It starts in Sandy Shores near the Alamo Sea, where the final Triathlon also begins. It runs along the coast of the Alamo Sea and ends in Grapeseed. The reward of the race is $500.
Another offroad race with trucks. It is a race through RON Alternates Wind Farm, so it has some tricky sharp turns. Like in all other offroad races, the reward is $500.