- Stands for Male.
- A horse who has not won yet a race.
- Female horse four-years-old or older.
- The distances between horses at the finish. Various terms: Dead-heat (tie), nose, short head, head, short neck, neck, half-length (horse), length (1, 2, 3, etc..).
- A number of races on the same racecourse that occur the same day.
- Muddy (track)
- A condition of a racetrack which is wet but has no standing water.
- Mutual pool
- Short for " parimutuel pool". Sum of the wagers on a race or event , such as the Win pool, Place pool, Exacta pool, etc.
All times are French times.