Daiwa Scarlet Build Guide | Uma Musume Pretty Derby

This Umamusume: Pretty Derby Daiwa Scarlet build focuses on getting her into 1st place early and holding it teh whole time. You don’t need maxed stats to win, but rather the right setup and support.

Here’s how to build her well (one of my favorites)!

Stat Priorities

Speed

Always your top stat. Red Ace only works if she's already in 1st, so Speed is everything.

Power

Helps her stay in front during turns. Aim for 500+.

Stamina

You’ll usually need 350+. That’s enough for most Medium courses if you’re not missing recovery skills.

Wit

Shoot for 400+. It helps her keep stamina and trigger her skills smoothly.

Guts

You can basically ignore this. It doesn’t help with her role or this build at all.

Best Support Cards for Daiwa Scarlet

Recommended Setup

This setup is built to boost Speed first, with just enough support to keep her stable and ahead.

4 Speed Cards*

You need at least four Speed cards. These will carry most of your stats and help her take the lead early. Kitasan Black, Silence Suzuka, and Biwa Hayahide are all great picks. Use any SSR or SR Speed card that gives good training boosts and front-runner skills.

1 Stamina Card

Super Creek is the best choice. She gives strong Stamina boosts and a reliable recovery skill that helps her stay calm in Medium races. One Stamina card is all you need.

1 Wit Card

Fine Motion is ideal. She gives early Speed support, helps with stamina control, and makes sure your skills actually trigger in races.

*If You Don’t Have 4 Speed Cards
You can run 3 Speed cards and add either a second Power card or a Wit card. Power gives more burst in races and helps with strength checks, while Wit improves energy and skill usage. Your overall Speed will drop slightly, but the trade-off can still work.

What to Avoid

NEVER run two Stamina cards. It takes focus away from Speed and won’t help much unless you're running Long races, which this build isn’t made for.

Training Strategy

Speed is the most important stat in this build. Your main goal is to raise it fast and keep it high.

Focus on Speed Training

Always pick Speed drills when they’re available. You want Speed training to reach Level 4 or 5 before the final stretch of the run.

When to Train Something Else

Only skip Speed if one of these things happens:

3 or more characters show up on another drill, especially Power or Wit
You see a useful skill hint, like Corner Adept or Straightaway Adept, on a non-Speed drill

Use Wit to Recover

Wit drills give a little stamina back and are often better than resting, especially if you get skill hints or friendship points too. Use them to keep your stamina stable between Speed sessions.

Build Friendship Early

In the first part of the run, focus on raising friendship with your support cards. Once they’re all glowing, you’ll start getting way more stats from each drill.

REMEMBER TO SKIP GUTS!!!

Guts doesn’t help this build. Only take it if it happens by accident or shows up during a good multi-support drill.

Best Skills for This Daiwa Scarlet Build

Red Ace

This is her absolutely most important skill. It boosts Speed during the second half only if she’s already leading. Everything else in this build supports that goal.

Corner Adept, Straightaway Adept

Both help with early speed boosts so she can grab the lead faster.

Firm Conditions

Safe choice for most races. It supports common track types.

Homestretch Haste

Optional. Helps keep the lead in the final stretch once Red Ace is going.

Swinging Maestro

Good if your Stamina is a little low and you need backup recovery.

Race Style Tips

Always set her to Front. She’s designed for it, with A compatibility for both Medium distance and Front position.

Use legacy characters that support Speed and Front style, like:

Maruzenski
Seiun Sky
Mejiro McQueen

Don’t go with legacy runners that focus on End or Late playstyles. They don’t help her hold a lead.

Final Blurb

This Uma Musume Pretty Derby Daiwa Scarlet build is all about early leads and smart support picks. You don’t need perfect stats, just Speed, the right legacy, and the confidence to push her to the front and never let go.

Keep it focused and she’ll surprise you, even when she’s listed as an underdog.

TL;DR

Focus on Speed first, then Power and Wit
Keep Stamina around 350+ for Medium races
Red Ace only works if she’s already in 1st, so build for Front style
Best support setup: 4 Speed, 1 Stamina (Super Creek), 1 Wit (Fine Motion). If no 4 speed cards read full section for another tip.
Only skip Speed training if there’s a skill hint or 3+ characters on another drill
Use Wit drills instead of resting to save time and stamina
Good legacy picks: Maruzenski, Seiun Sky, Mejiro McQueen
Avoid Guts and double Stamina setups
Scarlet can win even with low stats if she gets to the front early and holds it