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Umamusume Pretty Derby Mejiro Ardan Build Guide, Decks and Tips 2026

Ashi Prasadi
|2026-02-27

Did you start handling Team Trials or chasing URA Finale clears with Mejiro Ardan in Umamusume Pretty Derby? If not, this Umamusume Pretty Derby Mejiro Ardan build guide is all yours. We are going to deliver everything beginners need: optimal stats, support decks, inheritance setups, skill priorities, and training strategies tailored for her strengths as a Pace Chaser on Medium Turf races. So, get your Ardan shining on the track today and let’s start.

Umamusume Pretty Derby Mejiro Ardan Build Guide

Umamusume Pretty Derby Mejiro Ardan Overview: Strengths and Playstyle

Mejiro Ardan is built around calm positioning and a powerful late burst. Instead of rushing to the front early, she performs best when staying close behind the leaders, saving energy, and striking hard in the final straight.

Her growth bonuses clearly define how she should be trained:

  • Speed growth: 10%
  • Wit growth: 20%
  • Stamina, Power, and Guts growth: 0%

Strong Wit growth helps maintain stable positioning and improves skill activation. The Speed bonus supports her late surge, making her highly effective in a Pace Chaser role. Since she has no natural growth in Stamina, Power, or Guts, inheritance and support cards should be used to cover those weaknesses.

Umamusume Pretty Derby Mejiro Ardan

Base Stats and Growth Potential

Here is how her stats scale from Level 1 to 5 stars for an Umamusume Pretty Derby Mejiro Ardan build

Stat

Growth Rate

Base (Lv 1)

Max (5 star)

Speed

10%

~92

~113

Stamina

0%

~89

~109

Power

0%

~89

~109

Guts

0%

~80

~98

Wit

20%

~100

~121

Aptitudes (Crystalline Variant) 

Category

Sprint

Mile

Medium

Long

Stay

Turf

Dirt

Distance

-

B

A

D

-

A

F

Strategy

-

-

-

-

-

-

-

Leader

-

-

C

-

-

-

-

Pace Betweener/Chaser

-

-

A

-

-

-

-

Late Runner

-

-

D

-

-

-

-

End Closer

-

-

G

-

-

-

-

Note: The main focus should always be Mejiro’s A aptitude in Medium distance and Pace Chaser strategy on Turf. Upgrading Medium distance from A to S through inheritance is highly recommended, since reaching S grants a valuable Speed bonus during races.

Avoid forcing her into Long distance or End Closer roles, as those aptitudes are too low to perform consistently.

Unique Skill Explained

In an Umamusume Pretty Derby Mejiro Ardan build, her unique skill, A Lifelong Dream, A Moment's Flight, activates during the final straight when a rival is close behind.

When triggered:

  • A small amount of stamina is consumed
  • A large velocity boost is granted for several seconds

Unique Skill Explained

This skill defines her finishing power. To maximize its effectiveness, include recovery skills in her build. Extra stamina support ensures the stamina drain does not weaken her during the crucial final moments.

Recommended Race Setup for Umamusume Pretty Derby Mejiro Ardan Build

Setting up Mejiro Ardan correctly makes a huge difference in consistency for an Umamusume Pretty Derby Mejiro Ardan build. Her strengths clearly point toward a specific race role and distance. Building around that focus will give stable results in both career and competitive modes.

  • Primary Role: Pace Chaser (A aptitude) – Stays mid-pack, drafts efficiently, then surges.
  • Distance: Medium (A aptitude) – Balances her velocity skills without overtaxing low Stamina growth.
  • Surface: Turf only (A) – Avoid Dirt (F).
  • Key Scenarios: Unity Cup (Spirit Burst for extra stats/skills) or URA Finale (forgiving for beginners).
  • Target Modes: Team Trials Medium Pace Chaser teams; career clears via Tenno Sho (Autumn) win.

Recommended Race Setup for Umamusume Pretty Derby Mejiro Ardan Build

Inheritance Template: Maximize Stamina and Aptitudes

Inheritance is important to offset Umamusume Pretty Derby Mejiro Ardan build’s flat Stamina/Power growth. You can prioritize blue factors for raw stats and white/green for aptitudes.

Ideal Factors:

Color

Priority Sparks

Example Parents

Blue (Stats)

9 star Stamina, 9 star Power

Rice Shower, Manhattan Cafe (high Stamina parents); Mejiro family for synergy

White (Aptitudes)

3 star Pace Chaser, 3 star Medium, 1 star Mile

Oguri Cap alts, Agnes Tachyon (Pace/Medium specialists)

Green (Skills)

Recovery/velocity whites like Race Planner

Any with Pace Chaser hints

Pro Tip: Aim for A→S Medium aptitude upgrade (+Speed buff). Use GameTora's affinity calculator for Mejiro family chains (e.g., McQueen/Ryan parents).

Best Support Deck: Speed-Power or Speed-Wit Focus

Stack 3 Speed cards for Mejiro’s growth, bolster Power for late bursts, and we also recommend you to add Wit/Pal for skill procs.

Best Support Deck

And this is our recommended deck for Mejiro Ardan build:

Slot

Speed-Power Deck (Meta)

Speed-Wit Deck (Skill-Heavy)

Budget Alternatives

1 (Speed)

Kitasan Black SSR (S-tier, Curvature)

Kitasan Black SSR

SR Sweep Tosho (A-tier)

2 (Speed)

Sakura Bakushin O SSR

Fine Motion SSR (Wit hybrid)

R Speed cards

3 (Speed)

Nishino Flower SSR

Yukino Bijin SSR (S Wit)

Free event SRs

4 (Power)

El Condor Pasa SSR (S)

-

Daitaku Helios SR (S)

5 (Power/Stamina)

Rice Shower SSR (recovery)

Curren Chan SSR

Mejiro Ryan SR

6 (Friend/Pal)

Super Creek SSR (recovery)

Riko Kashimoto SR (Pal)

Any MLB Pal (borrow)

Essential Skills: Velocity, Recovery, and Positioning

Make sure to [prioritize 250-400 Wit for procs here and focus gold recovery + Pace Chaser whites.

Tier

Skill Name

Effect

Source

SS

Race Planner

Mid-race fatigue recovery (Pace Chaser)

Awakening Lv3, supports

SS

Pace Chaser Straightaways ◎

Velocity boost on straights

Gold hints (El Condor)

S

Pace Chaser Corners ◎

Corner velocity (essential for Turf)

Awakening Lv2

S

Swinging Maestro

Gold recovery alt

Super Creek SSR

A

Acceleration - Head On

Late acceleration

Career events

Unique

Triumphant Pulse (inherit)

Final burst

Mejiro parents

Training Tips and Career Guide

Building Mejiro Ardan the right way requires careful stat planning and smart race timing. Since her growth spread is not balanced, every training decision should support her Medium distance Pace Chaser role.

  • Scenario Priority: Unity Cup should be the main scenario choice. Spirit Burst phases provide bonus stats and extra skill hints, which help cover her weak natural growth in Stamina and Power. Taking advantage of high spirit periods leads to more efficient stat gains and smoother progression.
  • Stat Focus Order: Speed > Power/Stamina > Wit > Guts (dump stat). Speed is the core of her build and directly supports her final straight performance. Power and Stamina must be developed enough to maintain position and survive Medium races. Wit improves consistency and skill activation. Guts can be treated as a dump stat and should only increase naturally through support overlaps.
  • Glass Legs Debuff Management: Hits post-debut (-10 Energy, poor practice). Mitigate by spacing races; cure via Tenno Sho (Autumn) win. +5 Skill Pts in non-practice races.
  • Career Path:
    1. Junior Debut (Mile, auto).
    2. Aoba Sho (Medium G2, Top 5).
    3. Japanese Derby (Medium G1, Top 5).
    4. Post-Derby: Tenno Sho (Autumn) for win (cures debuff, hints like Ramp Up).
    5. Alt: Kikuka Sho (Long, risky—need Long sparks).
  • Training Loop: Focus on Rainbow and Friendship training sessions to gain balanced stats efficiently. Prioritize events that support the Pace Chaser strategy, especially those offering recovery or velocity skills. Unlock Potential Level 3 early. This allows access to Race Planner, which supports stamina management and improves overall race stability.
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People Also Ask

Is Mejiro Ardan worth pulling in global banners?

She's a solid Pace Chaser for Medium Turf but skips for top meta unless you need her Unique recovery-velocity combo. So, save for S-tier like Kitasan Black.

What's the difference between Mejiro Ardan variants?

Crystalline emphasizes Speed/Wit growth for modern builds; Original leans Stamina; Ballroom boosts Power/Guts for aggressive positioning.

How do I cure Glass Legs debuff fast?

Win Tenno Sho (Autumn) in Senior year. And prioritize Medium training post-Derby to hit the goal race strong.

Conclusion

And that is the end of our Umamusume Pretty Derby Mejiro Ardan build guide. This one rewards precise setups with explosive finishes, shining in Medium Pace Chaser slots. She's not S-tier efficiency like Oguri Cap, but will be viable for fun/meta hybrid teams. So, farm factors now for longevity with our guidance and make sure to claim Umamsume Pretty Derby codes on time too.

More from Umamsume Pretty Derby:

Ashi Prasadi
|
Senior Content Writer

I’ve spent over 6 years exploring MMO, RPG, and Simulation games, breaking down complex mechanics to create guides that make gaming easier and more fun. I am a 24 year old computer science student who love studying computer systems, design patterns, and numerical planning in games as those are my field. Beyond that, I enjoy photography and cinematography in general. For me, sharing knowledge is as rewarding as playing itself