Welcome to the most precise UMA Affinity Calculator available online. Whether you are aiming for the A+ rank or pushing for UG and beyond, managing your support card bond levels is the difference between a failed run and a legendary champion. Use the tool below to calculate exactly how many turns you need to trigger Friendship Training.
Projected Bond Growth (Next 15 Training Sessions)
What is the UMA Affinity Calculator?
The UMA Affinity Calculator is a strategic utility designed for players of "Uma Musume: Pretty Derby." In the game, your success depends on building "Bond" (Affinity) with your Support Cards. Once a card reaches 80 bond points, it unlocks Friendship Training (Rainbow Training), which provides significantly higher stat gains.
This tool allows you to input your card's current status and bonuses to predict when you will hit that critical 80-point threshold, allowing for better resource management during the Junior and Classic years of your training scenario.
The Formula and Logic
The calculation for bond gain isn't just a simple addition. It involves base values, multipliers from support card passives, and random event triggers. Our calculator uses the following standard model:
- Base Training Gain: Typically 7 points when you select a training where the card is present.
- Bond Bonus: A unique stat found on many SSR and SR cards (e.g., +20% Bond Gain).
- Hint/Event Avg: Random events usually grant +5 or +10. We factor in a frequency estimate to provide a realistic timeline.
Practical Examples
Example 1: The High-Tier SSR
Imagine you are using an SSR card with a 20% Bond Gain Bonus. You start at 0 bond. Base gain (7) * 1.2 = 8.4 per training. To reach 80, you would need approximately 10 training sessions. If you trigger two hint events (+5 each), you reach Friendship Training in just 8 sessions.
Example 2: The Budget SR
An SR card with 0% Bond Gain Bonus. Base gain is 7. To reach 80, you need 12 sessions. Without the bonus, you are effectively 2-3 turns behind the SSR, which can be the difference between hitting your stat caps or falling short.
How to Use the Calculator Step-by-Step
- Check Card Stats: Open your Support Card details in-game and look for "Bond Gain Bonus."
- Input Current Bond: Look at the bond bar (the smiley face icon) during training and estimate the current value.
- Select Rarity: SSR/SR cards have higher base affinity weights than R cards.
- Adjust Hint Frequency: If the card has a high "Hint Occurrence" rate, increase this value to 3 or 4.
- Analyze Results: Review the "Turns to Friendship" to decide if you should prioritize this card over others.
Key Factors Influencing Affinity
| Factor | Impact Level | Description |
|---|---|---|
| Starting Bond Bonus | Critical | Some cards start with 20-35 bond, skipping early turns. |
| Bond Gain Bonus | High | Multiplies every point earned during training. |
| Hint Occurrence | Medium | Increases the chance of getting +5 bond and a skill hint. |
| Scenario Events | Variable | Specific scenarios (like URA or Grand Masters) have unique bond mechanics. |
Frequently Asked Questions (FAQ)
1. Why is 80 bond the magic number?
At 80 bond points, the bond gauge turns orange/yellow, and if the card appears on its specialized training type, it triggers the "Friendship" bonus (Rainbow Training).
2. Does training level affect bond gain?
No, training level (1-5) affects stat gain, but the bond gain remains constant based on the card's presence.
3. Do multiple cards on one training stack bond?
Yes, you gain bond for every card present on the training button you click.
4. What is the maximum bond level?
The maximum is 100. Points beyond 100 do not provide additional training benefits, though they may impact specific event outcomes.
5. How do "Hints" (exclamation marks) affect this?
Hints usually provide a flat +5 bond bonus in addition to the standard training gain.
6. Does the "Motivation" of the Uma Musume affect bond?
Motivation affects stat gains and race performance, but it does not directly multiply bond gain points.
7. Can I lose bond/affinity?
No, unlike some dating sims, bond in UMA only goes up or stays the same; it never decreases.
8. Is the calculator 100% accurate?
It provides a mathematical projection. Since card appearances are RNG-based, the "Turns" result assumes you click the card every time it appears.