In the world of Umamusume: Pretty Derby, each trainee’s progression is significantly impacted by the accomplished racers who preceded them. Choosing appropriate Legacy characters at the onset of a career can greatly boost your trainee’s capabilities. Legacy bonuses have the power to elevate any Umamusume into an elite runner immediately, however, crafting the optimal Legacy team requires a substantial investment of time.
To kick off your journey in the world of Umamusume, you must pick two Legendary characters who will act as your trainee’s symbolic “parents.” This choice influences your trainee’s performance, granting extra bonuses to their stats and enabling unique skills based on the parents and grandparents. However, this system offers more than just a sprinkle of bonus points; it goes much deeper. To help you get ready for your upcoming career, here’s some essential information about Legendary Umamusume and Affinity scores.
What Do Legacy Umamusume Do?
As a devoted admirer, I’m excited to share that the Legacy horses you’ve chosen in Umamusume will boost your trainees’ initial stats and abilities. The Sparks that these Legacies accumulated during their racing careers are what determine these enhancements. You’ll notice these stat bonuses displayed above your trainee’s stats, with blue figures representing the benefits from Legacy 1 and pink ones indicating the benefits from Legacy 2. Enjoy the ride!
Abilities such as speed, endurance, or racing technique can be enhanced through training with the series Umamusume. Any of your trainees whose abilities are boosted by these trainings will have their upgrades indicated by a yellow highlight.
In a career’s beginning, only Sparks with colors blue and pink influence the starting bonuses. Other Spark types are significant during Inspiration moments later on.
You can leverage this system to overcome certain limitations or develop exclusive character setups that an Umamusume might not be able to achieve otherwise. Keep in mind that the starting stats and ability bonuses are influenced by the Sparks of the chosen Legacy Umamusume, so it’s not always wise to select your top-performing horse girl as a Legacy solely based on their race victories. Instead, consider assessing the Sparks within your team to identify the optimal Legacy choices for your upcoming gameplay.
What Does Affinity Do in Umamusume?

Each Legacy “Umamusume” comes with an Affinity rating which influences their suitability for your trainee. There are three Affinity levels in total: a ‘triangle’, a ‘single dot’, and a ‘double dot’. The ‘triangle’ is the least favorable, thus it’s advisable to always select Legacy runners with at least a ‘single dot’ or ‘double dot’ Affinity rating when making your choices.
In simpler terms, the Affinity score of your Legacy “Umamusume” influences whether they pass on their additional Spark abilities to your trainee. During each career race, there are two instances known as Inspiration events where your trainee approaches the Three Goddesses statue and chases after their Legacy “Umamusume”. At these moments, your trainee gains stat enhancements from any blue Sparks. Additionally, there’s a chance that other Sparks may activate randomly during these events, offering additional bonuses to your trainee.

In simpler terms, the Random Number Generator (RNG) in Inspiration events depends on your Legacy Affinity score. A higher affinity increases the chances of pink Sparks appearing, which boosts your trainee’s skill even more, or triggers white/green Sparks for additional benefits such as hints and stat upgrades. If you have a strong bond with your Legacies, Inspiration events can provide significant advantages that give your trainee an edge over others.
In the world of Umamusume, each character has a predetermined compatibility rating with every other horse girl. This rating influences Affinity and is higher for characters with similar talents and racing styles compared to those who have no commonalities. So, remember to consider this factor when choosing your legacy Umamusume at the beginning of your next racing career.
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2025-07-24 06:03