Uma Musume Inheritance Calculator

Predict your next generation’s potential

Calculate Your Horse Girl’s Inheritance

Enter the base stats and potential of your chosen parent Uma Musume to predict the likely stats of their successor. Higher parent stats and awakened abilities increase the chance of inheriting stronger base stats.

Inheritance Results

Speed Inheritance: —

Stamina Inheritance: —

Flex Inheritance: —

Formula Used:

Inherited Stat = (Parent1 Stat + Parent2 Stat) / 2 * (Inheritance Chance / 100) + Base Stat Modifier (based on Awakening)

Awakening adds a small bonus based on level. Higher chance means more of the average parent stat is inherited.

Inheritance Stat Distribution Table

This table shows potential inherited stat ranges based on your inputs.

Stat	Average Parent Stat	Potential Inherited Base	Min Possible Inheritance	Max Possible Inheritance
Speed	—	—	—	—
Stamina	—	—	—	—
Flex	—	—	—	—

What is Uma Musume Inheritance?

Uma Musume inheritance refers to the system in the popular game “Uma Musume Pretty Derby” where the stats, skills, and traits of parent Uma Musume (horse girls) are passed down to their offspring, the player’s developed Uma Musume. This process is crucial for players aiming to cultivate powerful and specialized horse girls for competitive racing. Understanding inheritance allows for strategic planning in choosing parent partners during the breeding and training phases, significantly impacting the potential ceiling of a player’s stable.

Who should use it?

• New players looking to understand the breeding system’s impact.
• Experienced players aiming to optimize stat distribution and skill inheritance for specific race types.
• Players who want to maximize the potential of their favorite Uma Musume by carefully selecting parent partners.
• Anyone curious about the mechanics behind generating strong successor Uma Musume in the game.

Common Misconceptions:

• Myth: Inheritance is purely random. Reality: While there’s an element of chance, the base stats and awakening levels of the parents heavily influence the outcome.
• Myth: Only SSR partners guarantee good inheritance. Reality: Rarity doesn’t solely determine inheritance potential. Base stats, awakened skills, and specific traits of the partner matter more.
• Myth: Skills are inherited directly and predictably. Reality: Skill inheritance is more complex, involving potential skill pools and probabilities influenced by parent skills and trainer choices. This calculator focuses primarily on base stat inheritance.

Uma Musume Inheritance Formula and Mathematical Explanation

The core of Uma Musume inheritance for base stats revolves around averaging the relevant stats of the two parent Uma Musume and applying a ‘chance’ factor, along with bonuses from the parent’s awakening level. The exact formula can be broken down as follows:

1. Average Parent Stat Calculation:

First, we find the average of the specific stat (Speed, Stamina, or Flex) between the two parent Uma Musume.

Average Stat = (Parent1 Stat + Parent2 Stat) / 2

2. Inheritance Chance Application:

Next, this average is multiplied by the ‘Inheritance Chance’ percentage provided by the player (often defaulting to 70% for base stats). This determines how much of the averaged stat is actually passed on.

Inherited Portion = Average Stat * (Inheritance Chance / 100)

3. Awakening Level Bonus:

The parent’s Awakening Level provides a small, stat-specific bonus. This bonus increases with each awakening level. For simplicity in this calculator, we approximate these bonuses. Higher awakening levels not only increase the direct stat bonus but also improve the *probability* of inheriting higher base stats and more skills.

Awakening Bonus = (Bonus Value based on Awakening Level)

Note: The exact bonus values vary slightly per stat and are often represented as a small percentage increase or fixed point addition. This calculator uses simplified estimates.

4. Final Inherited Base Stat:

The final inherited base stat is the sum of the inherited portion and the awakening bonus. This value represents the starting base stat for the new Uma Musume in that category.

Final Inherited Stat = Inherited Portion + Awakening Bonus

Minimum and Maximum Possible Inheritance:

The ‘Inheritance Chance’ dictates the range. If the chance is 70%, the inherited stat will typically fall within a range around that 70% mark. The calculator estimates a plausible range (e.g., +/- 10% of the calculated inherited portion) to represent this variability.

Min Possible Inheritance = Final Inherited Stat - (Inherited Portion * 0.10)

Max Possible Inheritance = Final Inherited Stat + (Inherited Portion * 0.10)

These ranges are estimations, as the game’s internal RNG and specific mechanics can cause slight deviations.

Variables Used in Calculation

Variable	Meaning	Unit	Typical Range (Contextual)
Parent1 Stat / Parent2 Stat	The base value of Speed, Stamina, or Flex for each parent Uma Musume.	Points	Speed: 500-1200, Stamina: 400-1100, Flex: 300-1000
Inheritance Chance	The percentage chance that the calculated average parent stat contributes to the new Uma Musume’s base stat.	%	60% – 75% (for base stats)
Awakening Level	The number of times the parent Uma Musume has been awakened (unlocked potential).	Level (0-6)	0 – 6
Awakening Bonus	A small stat boost added based on the parent’s Awakening Level.	Points	Varies, typically small additions per level.
Final Inherited Stat	The calculated starting base stat for the successor Uma Musume.	Points	Varies based on inputs.

Practical Examples (Real-World Use Cases)

Example 1: Aiming for High Speed

A player wants to breed a successor with high Speed. They choose two parent Uma Musume:

• Parent 1: Maxed Speed (1200 base), Stamina (800), Flex (700), Awakening 5.
• Parent 2: High Speed (1100 base), Stamina (750), Flex (650), Awakening 6.
• Inheritance Chance: 70%
• Awakening Level: Assume the calculator factors in a small bonus for Awakening 5/6.

Calculation Breakdown:

• Average Speed: (1200 + 1100) / 2 = 1150
• Inherited Portion: 1150 * (70 / 100) = 805
• Approximate Awakening Bonus: Let’s estimate +30 points for high awakening.
• Final Inherited Speed: 805 + 30 = 835

Calculator Output (Estimated):

• Primary Result: ~835 Speed
• Speed Inheritance: ~835
• Stamina Inheritance: ~775 (from avg stamina: (800+750)/2 = 775 * 0.7 + bonus)
• Flex Inheritance: ~680 (from avg flex: (700+650)/2 = 675 * 0.7 + bonus)

Interpretation: This setup yields a successor with a strong starting Speed base of around 835, significantly boosting their potential for speed-focused builds. The Stamina and Flex are also respectable, providing a balanced foundation.

Example 2: Balanced Inheritance with Lower Chance

A player is less concerned about maximizing one stat and wants a balanced approach, perhaps using partners with decent but not top-tier stats, and a lower inheritance chance setting (sometimes seen with specific events or mechanics).

• Parent 1: Speed (900), Stamina (850), Flex (750), Awakening 3.
• Parent 2: Speed (950), Stamina (800), Flex (700), Awakening 4.
• Inheritance Chance: 65%

Calculation Breakdown:

• Average Speed: (900 + 950) / 2 = 925
• Inherited Portion: 925 * (65 / 100) = 601.25
• Approximate Awakening Bonus: Let’s estimate +15 points for mid-level awakening.
• Final Inherited Speed: 601.25 + 15 = 616.25 (rounded to 616)

Calculator Output (Estimated):

• Primary Result: ~616 Speed
• Speed Inheritance: ~616
• Stamina Inheritance: ~575 (from avg stamina: (850+800)/2 = 825 * 0.65 + bonus)
• Flex Inheritance: ~517 (from avg flex: (750+700)/2 = 725 * 0.65 + bonus)

Interpretation: With a lower inheritance chance and less extreme parent stats, the successor starts with more moderate base stats. This might be acceptable if the parent partners offer valuable unique skills or traits that are prioritized over raw base stats.

How to Use This Uma Musume Inheritance Calculator

Using the Uma Musume Inheritance Calculator is straightforward. Follow these steps to predict your next generation’s potential:

1. Input Parent 1 Stats: Enter the base Speed, Stamina, and Flex stats for your first chosen parent Uma Musume.
2. Input Parent 2 Stats: Enter the base Speed, Stamina, and Flex stats for your second parent Uma Musume.
3. Select Parent Awakening Level: Choose the highest Awakening Level achieved for either parent (this calculator simplifies by using a single value representing the general bonus effect). Higher levels generally increase the probability of good inheritance.
4. Set Inheritance Chance: Input the percentage chance for base stat inheritance. For standard breeding, 70% is common. Adjust if specific game mechanics suggest otherwise.
5. Click ‘Calculate Inheritance’: The calculator will process your inputs using the underlying formula.

How to Read Results:

• Primary Result: This highlights the most influential inherited stat, often Speed, based on your inputs. It gives a quick snapshot of the successor’s potential focus.
• Intermediate Values: These show the calculated inherited base stats for Speed, Stamina, and Flex individually.
• Data Table: Provides a more detailed breakdown, including the average of the parent stats, the calculated inherited base, and estimated minimum/maximum possible values based on the inheritance chance.
• Chart: Visually compares the average parent stat, the calculated inherited base, and the awakening bonus for each stat, helping you see where the biggest gains or losses are.

Decision-Making Guidance:

• High Primary Result: If the primary result is significantly higher than expected, it indicates a strong potential for that stat. Prioritize training and skills related to it.
• Balanced Intermediate Values: If all three stats are reasonably high and balanced, you have a versatile successor capable of excelling in various race types.
• Low Results: If results are lower than desired, consider if the parent stats were too low, the inheritance chance was suboptimal, or if other factors (like skill inheritance) need more focus. You might need to choose different parent partners for future attempts.
• Use the min/max ranges in the table to understand the potential variability and whether the result is within expectations.

Key Factors That Affect Uma Musume Inheritance Results

While this calculator provides a solid estimate, several factors in the actual game mechanics can influence the final outcome of your Uma Musume’s inheritance:

1. Parent Base Stats: This is the most direct factor. Higher base stats in Speed, Stamina, Guts, or সম্ভাব্য (e.g., Flex for flexibility) on both parents will naturally lead to higher potential inheritance averages. This calculator directly uses these values.
2. Parent Awakening Level: As implemented in the calculator, higher awakening levels unlock more potential. In-game, this translates to small direct stat bonuses and, more importantly, a higher *probability* of inheriting better stats and more valuable skills. This calculator approximates the bonus and assumes higher awakening improves the overall chance.
3. Inheritance Chance Stat: Some race types or specific game mechanics might slightly alter the effective “Inheritance Chance” percentage. This calculator uses the player-input value but remember the game might have hidden modifiers.
4. Skill Inheritance Probability: While this calculator focuses on base stats, the skills possessed by the parent Uma Musume significantly influence which skills the successor might learn. High-rarity skills or skills from awakened parents have a better chance of passing down.
5. Unique Skill Inheritance: Unique skills are highly sought after. While influenced by parent unique skills, their inheritance is complex and often requires specific conditions or a high degree of luck. This calculator does not directly model unique skill inheritance.
6. Race Type Compatibility: Although not directly part of stat inheritance calculation, the intended race type (Sprint, Mile, Middle, Long, Dirt) for your successor influences which base stats (Speed, Stamina, Guts, potentially Flex) are most crucial. You’d prioritize parents strong in the stats needed for your target race.
7. Friend Partner Choice: When breeding, you choose one parent from your stable and one “Friend Partner” (often a high-rarity SSR support card Uma Musume). The stats and skills of this Friend Partner are crucial. This calculator assumes the “Parent 2” fields represent this choice.
8. Potential Cap Increases: Some events or items in the game might allow for temporary or permanent increases to a stat cap, which isn’t directly inherited but affects the overall potential ceiling of the successor.

Frequently Asked Questions (FAQ)

Q1: What is the ‘Flex’ stat in Uma Musume?

‘Flex’ (or sometimes referred to as ‘Power’ or ‘Technique’ depending on translation/context) is one of the base stats that can be inherited. It contributes to overall performance, particularly in areas like avoiding stumbling and potentially resisting certain negative race events. It’s often less prioritized than Speed or Stamina but still important for a well-rounded Uma Musume.

Q2: Can I inherit skills directly using this calculator?

No, this calculator primarily focuses on predicting the inheritance of base stats (Speed, Stamina, Flex). Skill inheritance is a separate, more complex mechanic influenced by the skills available on the parent Uma Musume and RNG.

Q3: What does “Awakening Level” mean for inheritance?

Awakening increases a parent Uma Musume’s potential. Higher awakening levels grant small base stat bonuses directly and, more significantly, improve the *probability* of passing down desirable stats and skills to the successor. This calculator incorporates a simplified bonus based on the selected level.

Q4: Is a 70% Inheritance Chance the best?

A 70% Inheritance Chance is generally considered standard for inheriting base stats from parents in Uma Musume. While higher might seem better, the effectiveness also depends on the quality of the parent stats. Sometimes, a slightly lower chance combined with exceptionally high parent stats can still yield great results.

Q5: What if my parent stats are lower than the typical range?

If your parent stats are lower, the calculated inherited stats will also be lower. The calculator works proportionally. You might need to focus on acquiring better parent partners or accepting a lower starting base for your successor.

Q6: How accurate are the min/max ranges in the table?

The min/max ranges are estimations based on the stated Inheritance Chance. The actual in-game RNG might produce results slightly outside these ranges, but they provide a good indication of the potential variability.

Q7: Should I prioritize Speed or Stamina for inheritance?

This depends heavily on the race type your successor will primarily compete in. Sprint and Mile races favor Speed, while Middle and Long Distance races require high Stamina. Guts also becomes important for longer races. Use the calculator to see potential outcomes and choose parents that align with your target race.

Q8: Does the *type* of parent Uma Musume matter (e.g., SSR vs R)?

While rarity (SSR, SR, R) often correlates with higher base stats and better skills, it’s the *actual* base stats and awakened skills/traits of the specific parent Uma Musume that determine inheritance potential. An SSR with low stats might pass less than an R with optimized stats for a specific purpose. Focus on the numbers and available abilities.

Related Tools and Internal Resources