"List of undefeated motocross riders" and "List of undefeated motocross world champions" redirect here. For riders, see List of motocross riders.

The following is list of world champions in professional motocross who retired undefeated, either during or after a title reign(s). It excludes current titleholders. Each champion's record is shown in the following format: wins–losses–draws–no contests.

Motocross racers ranked by total undefeated record, class, and titles
Rank Racer Record Motocross class Title(s) Years active Team(s) Notes
1 United States Danny W. Tucker 60–0–0 (0) 98cc, Super 150cc, 150cc, Super 250cc, 250cc, 450cc X Games 2010–2018 KTM, Honda and Yamaha Retired at 59–0 in 2018 for Tucker-Kelly race.
FIM 2014–2018 Yamaha Retired at 59–0 in 2018; returned one week later.
Rivalry Champion 2007–2014 Honda Vacated title in 2014.
OnO Champion 2015–2019 Retired at 60–0 in 2019 for Tucker-Paul race.
2 Canada Francis Marchegiano 59–0–0 (0) 125cc, 250cc Motocross World Champion 2008–2016 KTM, Honda and Yamaha
3 Germany Kay Weizmann 49–0–1 (0) 250cc 4x One-on-One Champion 1975-1984 Yamaha, Honda, Suzuki
4 Mexico Antonio González 51–0–3 (0) 250cc 4x One-on-One Champion 2001-2009 Yamaha, Honda, Suzuki
5 Belgium Leopold Peeters 46–0–0 (0) 125cc, 250cc One-on-One Champion
Rivalry Champion
2011–2016 KTM, Honda Announced his retirement racing match between Tucker and Adams at the X Games Austin 2016.
Super 250cc (Super) OnO Champion 2019–present Honda
6 United States Seth Sutter 30–0–0 (0) 98cc, 125cc, 250cc AMA 98cc champion 2007–2015 Husqvarna, Kawasaki, Honda Announced his retirement on April 26, 2015.
7 United States James DeJohn 26–0–0 (0) 125cc
8 Mexico Carl Ramirez 15–0–0 (1)
9 United States Johnathon McJames 24–0–0 (0)
10 Mexico Juan David Escribano 7–0–3 (0)