Key takeaways
- Pick the target before you start training. One stat for blue, one aptitude for pink, one skill for green. Runs that chase everything produce parents that are good at nothing.
- Build the support deck around that single stat and let the others lag. Blue Spark quality follows the stat you actually pushed.
- Learn the skill you want a green Spark for during the career — Sparks only come from skills the Uma actually has at the end.
- Win the races whose white Sparks you want. Race Sparks are tied to specific wins, not to total race count.
- Finish the career. Sparks are attached to the Uma at the end of the run, and that Uma is now a permanent parent candidate.
What Sparks Actually Do in Umamusume: Pretty Derby
Sparks are the inheritance bonuses a finished Uma passes down to the next generation — blue Sparks convert into raw stat points at the start of a run, pink Sparks raise aptitude grades, green Sparks hand out skill hints, and white Sparks carry race, scenario, and unique-skill bonuses. Finish a training career with any Uma and it permanently keeps whatever Sparks it earned; that Uma can then be slotted in as a parent for your next trainee. Train, keep, breed forward — that loop is the entire long-term progression system outside of support cards.
The Four Spark Colors and What Each One Is For
Every Spark belongs to one of four colors, and each color is pulled from a different part of the career you just finished.
| Color | Rolls on | Effect in inheritance | Where it comes from |
|---|---|---|---|
| Blue | Speed, Stamina, Power, Guts, Wit | Raw stat points applied before your first turn | Finishing the run with that stat pushed high |
| Pink | Surface (Turf/Dirt), Distance (Sprint to Long), running style (Front Runner to End Closer) | Chance to raise one aptitude by a single grade, e.g. B to A | The Uma’s final aptitude profile |
| Green | One specific skill | Grants a hint for that skill, cutting its skill-point cost | Skills learned during the career |
| White | Individual race wins, scenario completion, unique skills | Small bonuses and extra hints | Winning the right races and clearing the scenario |
Blue is the workhorse. It’s the only color that shows up as flat stats on turn one, and it applies to every build regardless of distance or style. Pink is the gatekeeper. A single grade on the right aptitude is often worth more than a pile of blue stars, because it can unlock a distance or a running style a Uma had no business running. Green is the shortcut. A hint for a skill you were going to buy anyway is effectively free skill points. White is the tiebreaker — low value per star, but it’s what separates an above-average parent from one you’ll still be using a year later.
How Inheritance Rolls: Six Slots, Two Chances
When you start a career you pick two parents. Each parent drags its own two parents along automatically, so four grandparents ride in for free. That’s 2 parents plus 4 grandparents — six legacy Uma, each contributing its complete Spark set to one shared pool.
The game rolls against that pool twice per career: once at the start, and again partway through, early in the Classic year. This is the single most misunderstood part of the system. A parent pair that looks mediocre on turn one can still flip an aptitude grade at the second roll, and quitting a run the moment you see a weak first inheritance tells you almost nothing about what the run will actually hand you.
Every roll is a chance, not a guarantee. More stars in the pool means a higher probability of the roll landing, not a certainty that it will — which is why breeders stack stars in one category instead of spreading them thin across five.
Star Ratings and the 18-Star Ceiling
Each Spark carries a star rating of 1 to 3, fixed the moment the career ends. Star level tracks how well that particular thing went during the run: a stat that finished near the ceiling produces higher-star blue Sparks than one you left in the middle of the bar.
| Piece of the system | Number | Why it matters |
|---|---|---|
| Legacy Uma per run | 6 (2 parents + 4 grandparents) | Every slot rolls independently into the same pool |
| Maximum stars per Spark | 3 | A 3-star blue in your target stat is the realistic goal |
| Theoretical blue ceiling per stat | 18 stars (6 slots x 3 stars) | Nobody hits this; treat it as a direction, not a target |
| Inheritance rolls per career | 2 | One at career start, one early in the Classic year |
| Aptitude grade scale | G, F, E, D, C, B, A, S | One successful pink inheritance moves exactly one step |
| Stat ceiling in most scenarios | 1200 per stat | Stats above this are wasted, so cap your blue targets accordingly |
| Hint discount | Roughly 10% off the skill’s cost per hint level | Green Sparks stack with hints picked up from support cards |
How to Create Sparks: The Run Order That Works
- Pick the target before you start training. One stat for blue, one aptitude for pink, one skill for green. Runs that chase everything produce parents that are good at nothing.
- Build the support deck around that single stat and let the others lag. Blue Spark quality follows the stat you actually pushed.
- Learn the skill you want a green Spark for during the career — Sparks only come from skills the Uma actually has at the end.
- Win the races whose white Sparks you want. Race Sparks are tied to specific wins, not to total race count.
- Finish the career. Sparks are attached to the Uma at the end of the run, and that Uma is now a permanent parent candidate.
How “Rerolling” Sparks Really Works
There is no button that rerolls the Sparks on a finished Uma. What the community calls rerolling is factor hunting: running the career again and keeping only the results worth breeding from. Treat every run as one pull, and the strategy becomes about pull efficiency rather than luck.
- Use a rental parent. One of your two parent slots can be filled with another player’s trained Uma. A borrowed parent with a fat blue set immediately raises the quality of everything you produce, so never breed from an empty pool if you don’t have to.
- Hunt with cheap runs, save your good support cards for the runs where you’re chasing a specific 3-star.
- Judge a parent by its best Spark, not its star total. One 3-star blue in Speed beats five scattered 1-stars every time.
- Don’t discard a run just because the first inheritance whiffed. The second roll is still coming.
Which Stats and Skills Are Worth Breeding For
Speed is the default blue priority — it’s the stat every build wants and the one that converts most directly into finishing position. Stamina only earns its slot if you’re running medium or long distances. Power matters for acceleration out of the final corner, Guts for late-race positioning, and Wit for skill activation rate. If you’re only going to breed one thing well, breed Speed.
For green Sparks, chase hints for skills you’d buy anyway: a gold-tier recovery skill for a long-distance build, an acceleration skill for a late surger, or a distance-specific speed skill. A hint for a skill you’d never purchase is a wasted Spark slot.
Building a Stronger Parent: A Five-Point Checklist
- Aim for a single 3-star blue in your target stat before worrying about anything else.
- Stack pink stars in one exact category. Scattered pink stars across surface, distance, and style rarely flip anything.
- Breed a second generation. Use your first decent parent to produce a better one — grandparents contribute just as much as parents.
- Keep one utility parent with strong pink and green Sparks even if its blues are weak; aptitude and hint coverage solves problems blue stats can’t.
- Don’t breed from a run that finished badly. Weak final results mean weak Sparks, no matter how good the mid-run looked.
Match Your Situation to a Breeding Plan
| Your situation | Prioritize | Practical move |
|---|---|---|
| Brand-new account, no trained Uma worth using | Blue Sparks in Speed | Borrow a rental parent first; one solid rental beats weeks of solo farming |
| An aptitude is one grade short (B to A) | Pink Sparks in that exact category | Stack pink stars across all six legacy slots rather than splitting them |
| Chasing a specific skill for a build | Green Sparks plus the relevant race Sparks | Learn the skill in every hunting run and win the race that carries its Spark |
| Building for ranked PvP events | Balanced blue and pink | Accept a lower blue ceiling in exchange for the exact aptitude grades the event demands |
| Limited playtime, casual pace | Whatever the borrowed parent already has | Rent, run, and keep only the runs that produce one clearly useful Spark |
Quick Answers
Do Sparks affect the Uma they’re attached to?
No. Sparks on a trained Uma do nothing until that Uma is used as a parent or grandparent in someone else’s lineage.
Do Sparks change after a career ends?
No. Star ratings and colors are locked in when the run finishes, which is why the only real reroll is another career.
Can I use the same Uma in both parent slots?
No — the two parent slots must be different Uma. The four grandparent slots are inherited automatically from each parent’s own lineage, and you don’t choose them directly.
