A typical Mastiff tops out around 17.4 mph in Fast CAT. The fastest one on record ran 25.63 mph. 5.3 mph slower than the typical dog (22.7 mph). Even a typical Mastiff would beat most people in a 100-yard sprint.
Based on the best Fast CAT run of 125 Mastiffs, a typical Mastiff tops out at 17.4 mph, and half of them run faster than 17.9 mph. That makes the Mastiff the 190th fastest of the 226 breeds that have run Fast CAT.
3 Mastiffs have topped 25 mph, but none has reached 30 yet.
Among the most popular Working breeds, the typical Mastiff is the slowest of the 9. The Boxer is the quickest of the bunch at 25.2 mph, and the Samoyed (21.4 mph) runs closest to the Mastiff. Over Fast CAT's 100 yards, the 7.8 mph gap to the Boxer is about 3.65 seconds.
Rocking Oaks Admiral Hopper holds the fastest consistent run by any Mastiff: 25.63 mph at the Dallas-Ft. Worth Basenji Club in Texas on April 7, 2024. That's 100 yards in 7.98 seconds.
AKC's results also show Nacimiento's Follow Your Heart at 27.24 mph, but that dog's next-best run is 12.46 mph. A jump that big is usually a timing or typing error, so we flag it rather than crown it.
On Dash-Hound, the fastest Mastiff is Rumor, with a best of 20.72 mph over 11 logged runs.
A little. The typical Mastiff ran 16.6 mph in 2021 (27 dogs) and 18.0 mph in 2024 (25 dogs). As more everyday pets join in, the average moves around.
Minnesota has the most Mastiff runs, 387 of them, followed by New Jersey, Washington, Ohio. The fastest Mastiff run in Minnesota is 20.72 mph.
Short legs don't stop anyone from having a blast. Any AKC-registered Mastiff over 12 months old can enter, small dogs earn twice the points per mph toward their titles, and the crowd always cheers loudest for the little ones. Have someone your dog will run to waiting past the finish line.
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Speeds from AKC Fast CAT results. Photographers: spotted your work? Tell us at [email protected] and we'll credit it or take it down.