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Uma Musume Inheritance Calculator
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Advanced Breeding Strategies

For trainers aiming for S+ and UG ranks, basic inheritance isn't enough. You need specific loops.

The Infinite Loop

Certain groups of Uma Musume have naturally high affinity with each other in a circle. By cycling these, you can maintain ◎ Compatibility indefinitely without checking calculators every time.

Oguri Cap
➡️
Maruzensky
Taiki Shuttle
⬅️
Symboli Rudolf

Grandparent Stacking

Don't just look at the parents. The grandparents (Parent's parents) contribute significantly to the compatibility score. If Parent A and Parent B share the same grandparents (inbreeding), the affinity score might drop, but if they share compatible grandparents, it rises.

Warning: Inbreeding (same character in family tree) resets the compatibility bonus to 0 for that character match!

Factor Farming

Spend "dead weeks" (between events) training parents specifically to generate 3★ factors.

  • Pick a race strategy that guarantees SS rank in your desired stat.
  • Participate in G1 races to collect "White Factors" (Race Bonus).
  • Ignore building a winning runner; focus on the result sheet stats.