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There are many horse girls that you can collect inUmamusume: Pretty Derby. Each has their own unique story, racing style, and collection of races that they want to run to feel successful.
As you pilot your way through each of their stories inUmamusume, you might want to learn a little bit more about the horses you are training to be winners. In this article, you can find a little more about each of these talented runners; in particular,their ages and when they celebrate their birthdays.
All Umamusume Girls Birthdays in Umamusume: Pretty Derby
Umamusume all have a listed height and birthday in the game, along with a joking mention of their weight compared to that of a normal person. Below, you can find all the birthdays of each horse as well as the other information available in their profiles.
Slight decrease (pre-race nerves)
158cm (5'2")
No change
161cm (5'3")
150cm (4'11")
164cm (5'4")
168cm (5'6")
Slight increase (overate)
167cm (5'5")
170cm (5'6")
165cm (5'4")
Unclear (refused measurement)
163cm (5'4")
Slight increase (but it’s no problem)
172cm (5'7")
152cm (4'11")
Slight increase (no comment)
160cm (5'3")
Slight increase (making frantic adjustments!)
159cm (5'2")
Slight increase (the weightlifting is working!)
Perfect as always! (self-proclaimed)
156cm (5'1")
Almost too perfect
Perfectly maintained
143cm (4'8")
155cm (5'1")
Measurement not possible
140cm (4'7")
Slight increase (ate too much ramen?)
171cm (5'7")
160cm (5'2")
A bit bulkier from muscle growth
145cm (4'9")
Slight increase (maybe ate too much?)
Refused measurement
157cm (5'1")
Measurement forbidden
Didn’t show up for measurement
139cm (4'6")
Slight increase (a secret as to why)
168 cm (5'6")
Slight decrease (Uamdol activities are rather taxing)
135cm (4'5")
Slight increase (but unphased)
Slight increase (eat lots, grow lots!)
144cm (4'8")
No change because today is my lucky day!
Slight increase… somewhere
Slight increase (ate a bit too much)
Honed to perfection
Slight decrease
Impossible to measure
146cm (4'9")
No ups or downs to worry about here
158cm (5'1")
162cm (5'3")
Why are All Umamusume’s Birthdays at the Beginning of the Year?
As you might have noticed, all the horse girls seem to be born around March to May, with a few outliers from January to June. It turns out that this is because theUmamusume have the same birthdays as their real-life horse counterparts. In the Northern Hemisphere, horses have their breeding season in the spring, and they have a pregnancy term of 11 months. Since all these horses are native to the Northern Hemisphere, most horse girls will be born around March and April.
How Old Are the Umamusume Horse Girls?
According to a live stream, the creators of the anime andUmamusume: Pretty Derbyrevealed that the horse girls “age like elves,” which seemed to be a unique way of saying that the girls age at whatever pace best fits with the story of the anime. This was posited by a redditor named magolor98 when they pointed out the strange way that Umamusume seem to have growth bursts rather than growth spurts, and the girlsbasically never age.
They also don’t seem to be connected to the real horses' birth years or years that they began their racing careers, and they are not connected to the age that the real-life horse was when it began racing. Most real-life horses begin to run at around two or three years old, and they tend to retire around age 5, which aligns with the amount of time the Umamusume race in career mode. Overall, it appears as though the developers just made the horses whatever age they wanted to, and then made it so they will never get old or die.
