Uma Musume Affinity Calculator

by






Uma Musume Affinity Calculator – Optimize Inheritance Success


Uma Musume Affinity Calculator

Analyze inheritance compatibility and shared G1 race bonuses for optimal breeding.


Standard base points between the trainee and two parents (typically 0-100).
Please enter a valid base value.


Number of identical G1 races won by both parent 1 and parent 2.
G1 wins must be between 0 and 30.


Bonus points based on character connections and shared archetypes.


Bonus points inherited from the grandparents’ compatibility.
Value cannot be negative.

Current Affinity Score

150
Double Circle (◎)
Base Value: 75 points
G1 Win Contribution: 25 points
Relationship Impact: High


Affinity Composition Analysis

Visualizing how your choices impact the final inheritance rank.

Legend: Blue = Base, Green = G1 Wins, Orange = Relationship, Red = Grandparents

Affinity Threshold Rank Icon Trigger Chance Inheritance Quality
0 – 50 Points △ (Triangle) Low Poor Stat Gains
51 – 150 Points ○ (Circle) Moderate Average Stat Gains
151+ Points ◎ (Double Circle) High Excellent Stat Gains

Table 1: Standard affinity rank breakdown for Uma Musume Pretty Derby.

Complete Guide to the Uma Musume Affinity Calculator

What is an Uma Musume Affinity Calculator?

The uma musume affinity calculator is an essential tool for trainers looking to maximize the inheritance system in Uma Musume Pretty Derby. In this game, affinity (often called compatibility) determines how many blue, red, green, and white factors are passed down from parents to the trainee during the inheritance events at the start of a training run and during the April of years two and three.

Professional players use the uma musume affinity calculator to ensure they hit the coveted “Double Circle” (◎) rank, which significantly increases the probability of triggering rare factors and receiving high stat boosts. Whether you are aiming for a SSS rank or preparing for a Champions Meeting, understanding these hidden numbers is the key to success.

Common misconceptions suggest that affinity is only about character relationships. While lore matters, the uma musume affinity calculator proves that shared G1 race wins are often the most influential variable in modern “farming” strategies.

Uma Musume Affinity Formula and Mathematical Explanation

The calculation behind the uma musume affinity calculator involves a combination of fixed character traits and dynamic performance data. The core formula can be expressed as:

Total Affinity = (Base Compatibility) + (Shared G1 Wins × Multiplier) + Relationship Bonus + (Grandparent Factor / 2)

Each variable plays a distinct role in the final score:

Variable Meaning Unit Typical Range
Base Compatibility Fixed value between two specific girls Points 0 – 80
Shared G1 Wins Number of identical G1 trophies held by parents Count 0 – 28
Relationship Bonus Lore-based ties (Family, Rivalry) Points 0 – 50
Grandparent Factor Bonus from the previous generation Points 5 – 30

Practical Examples (Real-World Use Cases)

Example 1: The Mejiro Bloodline Optimization

If you are training Mejiro McQueen and using Mejiro Ryan as a parent, the base affinity is naturally high due to the family tag. Using the uma musume affinity calculator, if both parents have won the Tenno Sho (Spring) and Arima Kinen (2 shared wins), plus a high relationship tier, the score might reach 165 points, resulting in a Double Circle rank easily.

Example 2: Cross-Archetype Compatibility

When pairing Oguri Cap with Mihono Bourbon, the base affinity is lower because they have different strategies (Dirt/Grass vs. Escape). To reach a high rank, a trainer must maximize shared G1 wins. By winning 15 G1 races with both parents, the uma musume affinity calculator shows a massive boost that compensates for the lack of a natural relationship bonus.

How to Use This Uma Musume Affinity Calculator

  1. Enter Base Affinity: Look up your character’s base compatibility or estimate it based on their family/rivalry status.
  2. Count G1 Wins: Open your parent Uma Musume profiles and count how many G1 races they both won. Enter this into the uma musume affinity calculator.
  3. Select Relationship: Choose the tier that best describes their interaction in the lore (e.g., Team Spica members).
  4. Add Grandparent Stats: If the parents themselves had high affinity with their ancestors, add those points.
  5. Review the Rank: The uma musume affinity calculator will instantly show if you are at Circle or Double Circle status.

Key Factors That Affect Uma Musume Affinity Results

  • Shared G1 Race Victories: This is the most controllable factor. Winning the same Triple Crown races on both parents is vital.
  • Character Archetypes: Characters with the same “Distance” aptitudes often have higher natural compatibility in the uma musume affinity calculator.
  • Historical Rivalries: Uma Musume based on real-life rivals (like Tokai Teio and Mejiro McQueen) receive specialized hidden bonuses.
  • Bloodline Consistency: Using the same ancestors across multiple generations builds “Affinity Loops,” which our uma musume affinity calculator can help simulate.
  • The “Ura” Factor: Certain scenarios provide different multipliers for shared wins, impacting the total inheritance trigger probability.
  • Factor Farming: High affinity doesn’t just give stats; it makes the chance of passing down “3-star” factors significantly higher.

Frequently Asked Questions (FAQ)

Does affinity affect the quality of red factors?

Yes, the uma musume affinity calculator score directly impacts the likelihood that a red factor (Distance/Track preference) will trigger and potentially upgrade your aptitude level.

Is a Double Circle (◎) guaranteed at 150 points?

In most scenarios, 150 is the threshold. However, some specific training scenarios might have slightly adjusted hidden values. Generally, the uma musume affinity calculator is 99% accurate for standard builds.

Do G2 and G3 wins count towards affinity?

No, the game mechanics primarily focus on G1 race victories for the inheritance bonus points.

Can I still get good factors with a Single Circle?

Yes, but the success rate is lower. Using an uma musume affinity calculator helps you minimize RNG by pushing your probability as high as possible.

How do grandparents affect the trainee?

Grandparents provide a secondary layer of compatibility. If Parent A and its ancestors had high affinity, Parent A becomes a “better” donor for your trainee.

What happens if affinity is 0?

You will receive a Triangle rank. While inheritance still occurs, the stat gains will be minimal and unique factors rarely trigger.

Does the strategy (Escape/Guts) affect affinity?

Indirectly, yes. Characters with similar historical strategies often share higher base values in the uma musume affinity calculator logic.

Can I use the same character in the pedigree?

No, the game prevents you from using the same character as both a parent and a trainee, or as two parents simultaneously.

Related Tools and Internal Resources


Leave a Comment

Uma Musume Affinity Calculator

by






Uma Musume Affinity Calculator | Aishou Breeding Guide


Uma Musume Affinity Calculator

This Uma Musume affinity calculator helps you determine the breeding compatibility (Aishou/相性) between two parent characters to produce a specific offspring. A higher affinity score leads to better initial stats and more inheritance events. Use this tool to plan your best breeding pairs!





What is the Uma Musume Affinity Calculator?

An Uma Musume affinity calculator is a specialized tool designed for players of the popular game *Uma Musume: Pretty Derby*. In the game, “affinity” (known as 相性 or *aishou*) is a hidden value that determines the quality of a breeding session. When you breed two parent characters to create an offspring, their combined affinity score directly impacts the stat bonuses the new character receives at the start of their training scenario. A higher score, often represented by a double circle (◎), gives a significant advantage, making it a cornerstone of competitive play. This calculator demystifies the process, allowing you to find the optimal breeding pairs without guesswork.

This tool is essential for any serious player aiming to raise S-Rank or higher characters. By using an Uma Musume affinity calculator, you can strategically select parents based on their hidden compatibility values and shared race histories to maximize the potential of your offspring. It helps avoid wasting valuable resources on low-affinity pairings and provides a clear path to achieving powerful stat inheritance.

Uma Musume Affinity Formula and Mathematical Explanation

The exact affinity formula in *Uma Musume* is complex and proprietary, but the community has reverse-engineered a highly accurate model. Our Uma Musume affinity calculator uses this widely accepted model. The total score is a sum of several key components:

  1. Parent-Offspring Affinity: Each parent has a base affinity value with the potential offspring. This is often based on real-life horse racing history and relationships.
  2. Parent-Parent Affinity: The two parents also have a compatibility score with each other.
  3. Shared G1 Wins Bonus: This is a significant bonus awarded for each G1 race that both parents have won. The bonus also applies to G1 races won by the grandparents (the parents of your chosen parents), though our calculator simplifies this to direct parent wins for clarity.
  4. Special Bonuses: Certain specific character combinations (e.g., a “trio” with a strong historical connection) can yield extra points.

The simplified formula is:

Total Affinity = BaseAffinity(ParentA, Offspring) + BaseAffinity(ParentB, Offspring) + BaseAffinity(ParentA, ParentB) + G1_Bonus

The final score is then categorized into ranks:

  • ◎ (Double Circle): 151+ points (Excellent)
  • ○ (Single Circle): 121-150 points (Good)
  • △ (Triangle): 76-120 points (Average)
  • ✕ (Cross): 0-75 points (Poor)
Variable Explanations for the Uma Musume Affinity Calculator
Variable Meaning Unit Typical Range
Base Affinity The inherent compatibility score between two characters. Points 5 – 35
G1 Win Bonus Bonus points for each G1 race won by both parents. Points per race 2 – 4
Total Affinity The final calculated score determining the breeding rank. Points 20 – 200+

Practical Examples

Example 1: High Affinity Pairing

A classic high-affinity pairing is breeding for Maruzensky using Special Week and Silence Suzuka as parents. These characters have strong historical and in-game connections.

  • Parent A: Special Week
  • Parent B: Silence Suzuka
  • Offspring: Maruzensky

The Uma Musume affinity calculator would likely show:

  • Parent A → Offspring: ~25 points
  • Parent B → Offspring: ~20 points
  • Parent A ↔ Parent B: ~34 points (very high)
  • Shared G1 Wins (e.g., Takarazuka Kinen): +8 points
  • Total Affinity: ~87 points (△) – While the base is good, the lack of many shared G1s keeps it from reaching ○. To improve this, you’d need parents with more overlapping G1 wins. This shows how the calculator helps identify weaknesses.

Example 2: Finding a “Double Circle” (◎) Pairing

Let’s try to create a top-tier Symboli Rudolf. We need parents with extremely high compatibility and many shared G1 wins. A potential pairing could be Tokai Teio and Mejiro McQueen.

  • Parent A: Tokai Teio
  • Parent B: Mejiro McQueen
  • Offspring: Symboli Rudolf

Using the Uma Musume affinity calculator for this scenario:

  • Parent A → Offspring: ~31 points (Strong connection)
  • Parent B → Offspring: ~28 points (Strong connection)
  • Parent A ↔ Parent B: ~25 points (Rivals, good affinity)
  • Shared G1 Wins (e.g., Tenno Sho Spring, Japan Cup, Arima Kinen): +20 points
  • Total Affinity: ~104 points (△) – Still not enough for the highest ranks. This demonstrates the difficulty and importance of using a precise Uma Musume affinity calculator to find those rare combinations that push the score over 151, often involving specific grandparents. For more tips, see our Uma Musume breeding guide.

How to Use This Uma Musume Affinity Calculator

Using our calculator is straightforward. Follow these steps to find the best breeding combinations:

  1. Select Parent A: From the first dropdown menu, choose the first parent character you plan to use for breeding.
  2. Select Parent B: From the second dropdown, select the other parent character. Note that you cannot select the same character for both parents.
  3. Select Offspring: In the third dropdown, choose the character you are trying to breed.
  4. Review the Results: The calculator will instantly update. The “Total Affinity Score” is your main result. The symbol (◎, ○, △, ✕) tells you the quality of the match at a glance.
  5. Analyze the Breakdown: Look at the intermediate values and the chart to understand *why* the score is what it is. A low score might be due to poor parent-parent chemistry or a lack of shared G1 wins. This insight is crucial for improving your next attempt.
  6. Experiment: Try different parent combinations for your desired offspring to see how the score changes. Our Uma Musume affinity calculator makes this process fast and easy.

Key Factors That Affect Uma Musume Affinity Results

Several factors contribute to the final score. Understanding them is key to mastering the breeding system. For a deeper dive, check our guide on how to increase affinity in Uma Musume.

1. Character Relationships (Base Affinity)

This is the foundation of the score. Characters with positive relationships in the game’s story or in real-life horse racing history (e.g., parent-child, famous rivals, stablemates) will have a higher base affinity. This is a fixed value you can’t change, so choosing the right characters is paramount.

2. Shared G1 Wins

This is the most significant variable you can influence. When both parents have won the same G1 race, you get a bonus. The more shared wins, the higher the bonus. This encourages players to raise versatile parents who can win a wide range of high-stakes races listed in the Uma Musume race list.

3. Grandparent G1 Wins

The affinity calculation also looks at the parents of your parents (grandparents). Shared G1 wins between a parent and the *other* parent’s parents also grant bonus points. A powerful breeding strategy involves creating “blueprints” – parents with a rich G1 history from their own parents.

4. Specific Trio Bonuses

Certain combinations of three characters (Parent A, Parent B, and Offspring) that share a deep historical bond can trigger a large, flat bonus to the affinity score. These are rare but can be the key to reaching a ◎ rating.

5. Compatibility of Race Records

Beyond just G1 wins, having parents who competed in similar types of races (e.g., both are sprinters or both are long-distance runners) can contribute positively. This is part of the hidden base affinity calculation.

6. In-Game Character Nicknames

Achieving certain character-specific nicknames during training, which often require winning specific sets of races, can also contribute to affinity bonuses when that character is used as a parent. This is an advanced technique for dedicated players.

Frequently Asked Questions (FAQ)

1. What do the affinity symbols (◎, ○, △, ✕) mean?

They represent the quality of the breeding match. ◎ (Double Circle) is the best, providing the largest starting stat bonus. ○ (Single Circle) is good. △ (Triangle) is average and the most common result. ✕ (Cross) is poor and should generally be avoided.

2. How important is a high affinity score?

It’s very important for competitive play. A ◎ affinity provides a significant head start with +60 or more to all stats and a higher chance of inheriting top-tier skills and stats during training. It makes achieving a high-rank character much easier.

3. Can I get a good character with low affinity (△ or ✕)?

Yes, it’s possible, but much harder. You will be relying more on luck during the training scenario (good support card events, successful training) to make up for the weak start. Using an Uma Musume affinity calculator helps you avoid this handicap.

4. Why is my affinity score so low even with good characters?

The most common reason is a lack of shared G1 wins between the parents and grandparents. Another reason could be that despite being strong, the characters lack a specific historical or in-game connection. Check our best breeding pairs Uma Musume list for ideas.

5. Does the star level (rarity) of the parents affect affinity?

Star level does not directly affect the affinity *score*. However, higher-star parents provide better base stats for inheritance, which is a separate but equally important part of breeding. The affinity score determines the *bonus* stats on top of that inheritance.

6. How often is the data in this Uma Musume affinity calculator updated?

We strive to update our calculator’s database with new characters and any discovered changes to the affinity formula. Our goal is to keep it as accurate as possible for the current state of the game.

7. What is the difference between parent-offspring and parent-parent affinity?

Parent-offspring affinity relates one parent to the child being bred (e.g., Special Week’s connection to Maruzensky). Parent-parent affinity is the compatibility between the two parents themselves (e.g., Special Week’s connection to Silence Suzuka). Both are added to the total score.

8. Where can I learn more about Uma Musume inheritance?

Inheritance is the system where parents pass down their stats, aptitudes, and skills. Affinity is a key part of this. For a full breakdown, we recommend our guide on Uma Musume inheritance mechanics.

Related Tools and Internal Resources

  • Uma Musume Character Guide – A comprehensive list of all characters, their stats, and recommended training builds.
  • Support Card Tier List – Find the best support cards to use for training your newly bred Uma Musume.
  • G1 Race Calendar – A complete list of all G1 races, essential for planning your parents’ careers to maximize the shared win bonus.

© 2024 Uma Musume Tools. All rights reserved. This is a fan-made tool and is not affiliated with Cygames, Inc.


Leave a Comment