This is a build guide for Mejiro Dober in Umamusume: Pretty Derby. Find out how to build Mejiro Dober, her preferred tracks, distances, and style, as well as her basic character information, here!
| Mejiro Dober Related Guides | |
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List of Contents
| This is an upcoming character, and not all information or official translations have been released yet.
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| Mejiro Dober | |||||||||||||||||||
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| Overall | Ease | T.Trials | CM | ||||||||||||||||
| ー | ー | ー | ー | ||||||||||||||||
| Track Aptitude | |||||||||||||||||||
| Turf: A | Dirt: G | ||||||||||||||||||
| Distance Aptitude | |||||||||||||||||||
| Sprint: E | Mile: A | Med: A | Long: F | ||||||||||||||||
| Pace Aptitude | |||||||||||||||||||
| Front: C | Pace: B | Late: A | End: G | ||||||||||||||||
| Stat Growth | |||||||||||||||||||
| SPD: 10% | STA: 0% | POW: 0% | GUT: 0% | WIT: 20% | |||||||||||||||
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Having run the race calmly, increase acceleration with hardened determination when making a move mid-race, or on a crucial corner late-race whilst in midpack. |
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Mejiro Dober's Unique Skill can activate in one of two points during a race. The skill can activate in the late-race if Mejiro Dober is in a corner that is not the final corner. It can also activate in the mid-race, if she is in the final corner. This means that depending on the track, Meijro Dober's Unique Skill can either be a mid-race or a late-race skill.
Additionally, on top of the location conditions, the skill will only activate if Meijro Dober is in the middle of the pack (5th-6th place in Champions Meet races and 6th-8th place in Team Trial races), and if she did not get Rushed at any point throughout the race.
| All Innate Skills |
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| Skill Per Potential Level |
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Potential 2:
Potential 3:
Potential 4:
Potential 5:
Yodo Invicta Effect: Increase performance at Kyoto Racecourse, boosting Stamina and Wit. |
| All Career Event Skills |
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Meijro Dober's Unique Skill is a strong skill that is similar to Mejiro Ryan's Unique Skill Let's Pump Some Iron, and is a good skill for Late Surgers to inherit.
However, due to its strict conditions, as well as the lower duration when inherited, the effects of the skill varies from race to race. If you are planning to roll for Mejiro Dober as a Late Surger parent, make sure you know the layout of the racetrack to see if you can maximize her Unique Skill.
Outside of being a Legacy, Meijro Dober herself is great Late Surger, with a focus on Medium races. If you are looking for a new Late Surger to add to your roster, or if you like her as a character, then you can roll for her.
Mejiro Dober will be a featured character for the upcoming Spotlight Pretty Derby Scout Banner on December 28, 2025. Make sure to save up enough Carats if you want to pull for Mejiro Dober.
Upcoming Characters and Support Cards
| Training Tips |
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When training Mejiro Dober, use the brand new Unity Cup scenario to take advantage of the new Spirit Burst mechanic. This not only lets you gain more stats than normal, but can also provide useful Skill Hints.
Running Mejiro Dober as a Late Surger is the best choice, as she has access to Late Surger skills, as well as an A-rank aptitude for the running style. Additionally, her Unique Skill activates when she is in the second half of the pack, which she can easily achieve by running as a Late Surger.
Mejiro Dober will be part of your Medium team in Team Trials. As such, improving her Medium aptitude is a must, as this will help her perform better during Team Trial races.
Although she has a Long race in her career (the Arima Kinen), she does not need to win it, so you can keep her Long aptitude at F.
Meijro Dober has two good Secret Events that can provide a Mood increase, stats, and even Skill Hints. The first event requires her to win the Triple Tiara, while the other needs her to win 5 G1 races in her Senior Year (her three Senior Class G1 races and two other G1 races of your choosing).
Make sure to complete both Secret Events to maximize your stat gain and gain access to some useful skills.
| 1200 | 800 | 800 | 400 | 600 |
Mejiro Dober will be a part of your Medium team in Team Trials as a Late Surger. As such, focus on giving her as much Speed and Power as possible to help her overtake her opponents, while also providing enough Stamina to survive her races. Acquiring a Gold Recovery skill, such as Swinging Maestro, is recommended to aid her in Medium-length races.
As her Unique Skill requires her to stay calm throughout the race, try to get enough Wit to prevent Meijro Dober from getting Rushed. If you are only planning to clear a career run with Mejiro Dober, then you can aim for lower stat numbers, as the stats above are for Team Trials.
For Support cards, we recommend a 3 Speed, 2 Power, 1 Pal deck for Mejiro Dober. This will help her get the Speed and Power she needs, with the Stamina coming from Power training, Legacy Sparks, and Riko Kashimoto's Career events. Alternatively, you can also run a 2 Speed, 3 Wit, 1 Pal deck, which will help you maximize your training time.
Rice Shower (Happiness Just around the Bend) in particular is a great Power card, as it can give you the Gold recovery skill Swinging Maestro through her Career Events. Additionally, if you do not have Riko Kashimoto (Planned Perfection), you can use a max-uncapped Riko Kashimoto (Tracen Academy).
| Recommended Alternative Support Cards | |
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| Speed | |
| Power | |
| Wit |
These cards will help Meijro Dober level her needed Stats (especially with Rainbow/Friendship Training), as well as provide some needed skills.
These stats are enough to clear the URA Finale easily, as they provide enough Speed, Stamina, and Power for all of Meijro Dober's career races, especially when partnered with the correct skills.
As for the deck, you can either run a 4 Speed, 2 Stamina deck, or a 3 Speed, 3 Power deck if you can get Stamina sparks. Tazuna Hayakawa can also be used as an alternative card in exchange for a Power card.
| Recommended | |
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| 9★ Stamina 9★ Power |
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| 3★ Late Surger 3★ Medium |
Mejiro Dober will need Stamina and Power sparks to help her meet her stat requirements. If you find yourself having a hard time meeting the Stamina requirements, you can swap some Power sparks for Stamina sparks. Afterward, get Late Surger and Medium Sparks to improve her performance in the running style and distance.
You can use either your own Veterans, or borrow the ones from your friends. If you do not have Veterans with full sparks, you can go with whatever you have access to.
As a Late Surger, Mejiro Dober will primarily be coming in from the back of the pack. As such, acceleration skills are a must, as well as skills that activate when overtaking. Good acceleration and overtake skills include On Your Left!, Nimble Navigator, and It's On!.
Other than that, players should get speed skills to help Mejiro Dober keep her position, such as Professor of Curvature, Medium and Late Surger Corners, and Slipstream. Homestretch Haste is another good option, and can help Mejiro Dober close out the race. As for recovery skills, Swinging Maestro is a reliable option.
If you cannot get the recommended skills, you can replace them with similar skills that you have access to. You will just need to make sure that Meijro Dober can activate said skills in a race.
| Event Conditions | Event Effects |
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| Win the Hanshin Juvenile Fillies |
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Meijro Dober has a secret event that occurs if you manage to win the Hanshin Juvenile Fillies during Junior Year Early December.
As the reward is not that big, this secret event is not a priority.
| Event Conditions | Event Effects |
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| Win the Triple Tiara (Oka Sho, Japanese Oaks, and Shuka Sho) |
Unyielding Spirit Hint +2 |
This secret event can be achieved by earning the Triple Tiara, which requires winning the Oka Sho, Japanese Oaks, and Shuka Sho. Doing so will not only increase your mood and stats, but also provide hints for Unyielding Spirit.
| Event Conditions | Event Effects |
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| Win at least 5 G1 races during the Senior Year, including the Osaka Hai, Takarazuka Kinen, and Elizabeth II Cup. |
All I've Got Hint +2 |
Another one of Mejiro Dober's secret events requires her to win five G1 races during her Senior Year. To be specific, she needs her Senior Year G1 races (Osaka Hai, Takarazuka Kinen, and Elizabeth II Cup), as welll as two other Senior Year G1 races of your choosing.
Completing this secret event will reward Meijro Dober with additional Speed and Power, as well as Skill Hints for All I've Got.
| Goal | Race/Goal |
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| Run in Junior Make Debut | Junior Make Debut |
| Place top 5 in Hanshin J.F. |
Hanshin Juvenile Fillies
(Mile - 1600m) Junior Year Early Dec |
| Place top 5 in Oka Sho |
Oka Sho
(Mile - 1600m) Classic Year Early Apr |
| Place top 5 in Japanese Oaks |
Japanese Oaks
(Medium - 2400m) Classic Year Late May |
| Place top 3 in Shuka Sho |
Shuka Sho
(Medium - 2000m) Classic Year Late Oct |
| Run in Arima Kinen |
Arima Kinen
(Long - 2500m) Classic Year Late Dec |
| Place top 3 in Osaka Hai |
Osaka Hai
(Medium - 2000m) Senior Year Late Mar |
| Place top 3 in Takarazuka Kinen |
Takarazuka Kinen
(Medium - 2200m) Senior Year Late Jun |
| Place 1st in Fuchu Umamusume Stakes |
Fuchu Umamusume Stakes
(Mile - 1800m) Senior Year Early Oct |
| Place 1st in Queen Elizabeth II Cup |
Queen Elizabeth II Cup
(Medium - 2200m) Senior Year Early Nov |
Mejiro Dober"You don't need to worry about little old me... Besides, I'm not used to getting so much attention..." | Voice Actress | Hikari Kubota |
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| Height | 157cm / 5'1" | |
| Weight | No change | |
| Birthday | May 6 | |
| Three Sizes | B 83 | W 57 | H 81 | |
| While cool and reticent, she remains tense in many social situations, especially if men are present. Though she was raised in the prestigious Mejiro household, where visitors are never rare, she has nonetheless led a very sheltered life. Perhaps because of this, she can come off cold to strangers, but those who take the time to talk to her realize that she is not quite as uptight as she first seems. | ||
| Uniform | Racewear |
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Racewear |

| Height and Weight | Voice Actors | Three Sizes | List of Birthdays |
| 3-Star Characters | 2-Star Characters | 1-Star Characters |
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