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This is a build guide for Agnes Tachyon (Tach-nology) in Umamusume: Pretty Derby. Find out how to build Agnes Tachyon, her preferred tracks, distances, and style, as well as her basic character information, here!
| Agnes Tachyon Related Guides | |
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List of Contents
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(1★ to 2★) |
Moderately recover endurance when conserving energy on a corner in the second half of the race. |
|---|---|
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(3★+) |
Recover endurance when conserving energy on a corner in the second half of 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: |
| Training Tips |
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Agnes Tachyon performs best as a Pace Chaser, even if it's possible to turn her into a Late Surger. Take advantage of her +20% Speed growth to get the Speed you need, then focus on getting Power and Stamina to complement her running style.
As you have Innate Recovery skills, as well as a Recover Unique Skill, you can prioritize Speed skills when choosing which skills to learn. Skills like Homestretch Haste, Straightaway Acceleration, and the like are helpful skills for Agnes Tachyon.
Of course, you should still get Stamina Skills when able, as you are expected to compete in two Long races. Gourmand, for example, is a strong Pace Chaser Recovery skill.
Increasing Agnes Tachyon's Potential level gives you access to powerful skills such as Dominator and Race Planner.
If you do not have the Monies or materials to do so, reaching Potential Level 3 is enough to gain access to Dominator.
Agnes Tachyon has two Long races in her career: the Kikuka Sho in Classic Year Late October, and the Arima Kinen in Senior Year Late December. To help with these races, we recommend improving her Long aptitude to A.
To do this, look for Legacies that provide Long sparks.
| Jump to a Build! | |
|---|---|
| Champions Meeting | General Career |
| 1100+ | 1050+ | 600+ | 400+ | 400+ |
It is recommended to have these stats for Agnes Tachyon as she excels in the Pace Chaser running style. Having high speed while maintaining an equal or close amount of high Stamina and Power is what this running style needs to maintain their pace. Additionally, having 2 Gold Recovery Skills will help you survive debuffs during this race.
It's important to note that you will need to upgrade her Long aptitude to A to make using her in the Gemini Cup feasible. You can do this using Legacies and Sparks.
We recommend these skills for Agnes Tachyon because there are potentially many debuffers during this race, so it is important to have a lot of Stamina recovery skills such as Swinging Maestro and Gourmand.
Since Agnes Tachyon is also a great pace Chaser, it is important to maintain her pace so she can easily overtake at the last spurt so we recommend skills like Red Shift/LP1211-M, Straightaway Adept, and Professor of Curvature.
Gemini Cup Champions Meeting Guide
| Jump to a Build! | |
|---|---|
| Champions Meeting | General Career |
| 900 | 800 | 600 | 400 | 400 |
Agnes Tachyon is all about conserving strength as a Pace Chaser in Medium races. As such, having decent Stamina is a must. Partner this with high Speed and high Power, and you will be able to outrun your opponents.
It is important to note that if you cannot reach the stats recommended above, you can instead aim for a similar stat distribution. You can then compensate for the missing stats using skills. Additionally, if you are only planning on clearing a career run with Agnes Tachyon then you can aim for lower stat numbers, as the stats above are a baseline for Team Trials.
For Support cards, we recommend a 3 Speed, 2 Stamina, 1 Wit deck, although you can also choose to replace a Stamina card with a Power Card. This lets her perform well both in Medium and Long races (should she become proficient in them).
These cards will help in training Agnes Tachyon's preferred stats (especially with Rainbow/Friendship Training) and also provide her with the skills she needs such as Gourmand and Homestretch Haste.
| Alternate Cards | ||
|---|---|---|
Hishi Amazon (Reach to the Top!) Rarity: SR Type: Power Good for Pace Chasers and End Closers |
Marvelous Sunday (A Marvelous ☆ Plan) Rarity: SR Type: Wit General-purpose speed skills and debuffs |
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If you do not have the cards from the recommended deck, you can replace them with a similar stat card that provides skills that Agnes Tachyon needs. These can be SSR cards, or even SR cards. Above are some of the SR cards that you can use in place of SSR Support cards.
| Recommended | |
|---|---|
| 9★ Stamina 9★ Power |
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| 3★ Pace Chaser 3★ Late Surger 3★ Medium 3★ Long |
Agnes Tachyon will need Stamina and Power sparks for her Medium races, as well as the occasional Long Race. Additionally, try to get either Medium or Long sparks to increase her compatibility with her career races. Long Sparks are slightly more important, as although Agnes Tachyon's career races are mostly Medium length, her final race is the Arima Kinen, a Long race.
For running style sparks, you can either get a Pace Chaser spark to bring it up to S, or a Late Surger spark to bring it up to A and increase your options.
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.
| Great | |
|---|---|
| Good |
When picking Legacies, try to select compatible legacies, as they increase the chance of inheriting additional sparks during the Inheritance events. This is not required, but is highly recommended.
If you do not have access to fully compatible legacies, it is enough to ensure that you have at least good compatibility with your selected legacies.
| Recommended Skills | ||
|---|---|---|
Gourmand
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Swinging Maestro
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Pace Chaser Corners ◯
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Professor of Curvature
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Straightaway Acceleration
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Homestretch Haste
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Thakns to Agnes Tachyon's innate recovery skill, it is okay to focus more on speed skills. Skills like Pace Chaser Corners and Straightaway Acceleration helps her keep her position during the race, with Homestretch Haste speeding her up in the final stretch.
If you feel like you need a Stamina skill, try to get Gourmand, a strong recovery skill with an easy activation requirement. You can also get Gourmand if needed (especially for Long races), although Agnes will need to run as a Pace Chaser if you do.
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 Agnes Tachyon can activate said skills in a race.
| Choice | Outcome |
|---|---|
| Choice 1 | ・ 20 Stamina |
| Choice 2 | ・ 20 Speed |
| Choice | Outcome |
|---|---|
| Choice 1 | ・ 20 Wit |
| Choice 2 | ・ 20 Power |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ 10 Stamina ・ 10 Guts ・ Fast Learner (Random) |
| Choice 2 |
・ 20 Wit ・ Fast Learner (Random) |
| Choice | Outcome |
|---|---|
|
Choice 1
(What if you try thanking it?) |
・ 5 Speed ・ 5 Power |
|
Choice 2
(What if you try accepting the gift?) |
・ 10 Guts |
| Choice | Outcome |
|---|---|
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Choice 1
(Stop!) |
・ 5 Power ・ 5 Wit |
|
Choice 2
(Let me sit down in it first!) |
・ 10 Stamina |
| Choice | Outcome |
|---|---|
|
Choice 1
(Let's tell her there's been a misunderstanding.) |
・ 5 Power ・ 5 Guts |
|
Choice 2
(We should tell her to reconsider.) |
・ 5 Speed ・ 5 Wit |
| Choice | Outcome |
|---|---|
| Choice 1 | ・ 10 Guts |
| Choice 2 | ・ 10 Wit |
| Choice 3 | ・ 10 Power |
| Choice | Outcome |
|---|---|
| Choice 1 | ・ 10 Wit |
| Choice 2 | ・ 10 Speed |
| Choice | Outcome |
|---|---|
|
Choice 1
(Wait a sec, hang in there!) |
・ 10 Guts |
|
Choice 2
(I'll prepare something right away) |
・ 5 Speed ・ 5 Power |
| Choice | Outcome |
|---|---|
| Choice 1 | ・ 10 Stamina |
| Choice 2 | ・ 10 Speed |
| Choice | Outcome |
|---|---|
|
Choice 1
(We'll pass.) |
・ 10 Energy ・ 5 Skill Pts |
|
Choice 2
(Success)
(Can't let them go to waste, right?) |
・ 30 Energy ・ 10 Skill Pts |
|
Choice 2
(Fail)
(Can't let them go to waste, right?) |
・ 30 Energy ・ -5 Speed ・ 5 Power ・ 10 Skill Pts ・ Slow Metabolism |
| Choice | Outcome |
|---|---|
|
Choice 1
(Let your research results prove them wrong.) |
・ 10 Wit ・ 15 Skill Pts |
|
Choice 2
(Show them what makes you amazing.) |
・ Corner Adept ◯ Skill Hint |
| Choice | Outcome |
|---|---|
|
Choice 1
(After her!) |
・ -20 Energy ・ 15 Stamina ・ 10 Guts |
|
Choice 2
(Oh, looks like she's dropped her treasured Umamusume scrapbook!) |
・ 5 Energy ・ 5 Wit |
| Choice | Outcome |
|---|---|
|
Choice 1
(Strength training, please.) |
・ 10 Power |
|
Choice 2
(Beach running, please.) |
・ 10 Guts |
| Choice | Outcome |
|---|---|
|
Choice 1
(Let's think about our strategy for the races!) |
・ 10 Wit |
|
Choice 2
(Let's celebrate with some mochi!) |
・ 20 Energy |
|
Choice 3
(Let's pray at the shrine for good luck!) |
・ 20 Skill Pts |
| Choice | Outcome |
|---|---|
|
Choice 1
(Today's a holiday, we should take it easy.) |
・ 30 Energy |
|
Choice 2
(Let's get fortune slips!) |
・ 5 All Stats |
|
Choice 3
(Yeah, let's go back and train!) |
・ 35 Skill Pts |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ 10 Energy ・ -2 Mood ・ Last trained stat and two other random stat -10 ・ Practice Poor (random) |
| Choice 2 (Success) | ・ Practice Perfect ◯ |
| Choice 2 (Fail) |
・ -3 Mood ・ 3 Random stat -10 ・ Practice Poor |
| Choice | Outcome |
|---|---|
|
Choice 1
(Humor her a little, will you?) |
・ -5 Energy ・ Last trained stat +5 ・ 5 Friendship with Director |
|
Choice 2
(I'll go talk her out of it.) |
・ 5 Energy |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -1 Mood ・ Last trained stat -5 ・ Practice Poor (random) |
| Choice 2 (Success) | ・ Practice Perfect ◯ |
| Choice 2 (Fail) |
・ -1 Mood ・ Last trained stat -10 ・ Practice Poor (random) |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -25 Energy ・ 25 Skill Pts ・ Random Stat +4 |
| Choice 2 (Success) |
・ -15 Energy ・ 25 Skill Pts ・ Random Stat +4 |
| Choice 2 (Fail) |
・ -35 Energy ・ 25 Skill Pts ・ Random Stat +4 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -25 Energy ・ 20 Skill Pts ・ Random Stat +3 |
| Choice 2 (Success) |
・ -15 Energy ・ 20 Skill Pts ・ Random Stat +3 |
| Choice 2 (Fail) |
・ -35 Energy ・ 20 Skill Pts ・ Random Stat +3 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -25 Energy ・ 20 Skill Pts ・ Random Stat +3 |
| Choice 2 (Success) |
・ -15 Energy ・ 20 Skill Pts ・ Random Stat +3 |
| Choice 2 (Fail) |
・ -35 Energy ・ 20 Skill Pts ・ Random Stat +3 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -25 Energy ・ 10 Skill Pts |
| Choice 2 (Success) |
・ -15 Energy ・ 10 Skill Pts |
| Choice 2 (Fail) |
・ -35 Energy ・ 10 Skill Pts |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -20 Energy ・ 45 Skill Pts ・ Random Stat +8 |
| Choice 2 (Success) |
・ -10 Energy ・ 45 Skill Pts ・ Random Stat +8 |
| Choice 2 (Fail) |
・ -30 Energy ・ 45 Skill Pts ・ Random Stat +8 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -20 Energy ・ 35 Skill Pts ・ Random Stat +5 |
| Choice 2 (Success) |
・ -10 Energy ・ 35 Skill Pts ・ Random Stat +5 |
| Choice 2 (Fail) |
・ -30 Energy ・ 35 Skill Pts ・ Random Stat +5 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -20 Energy ・ 35 Skill Pts ・ Random Stat +5 |
| Choice 2 (Success) |
・ -10 Energy ・ 35 Skill Pts ・ Random Stat +5 |
| Choice 2 (Fail) |
・ -30 Energy ・ 35 Skill Pts ・ Random Stat +5 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -20 Energy ・ 30 Skill Pts ・ Random Stat +3 |
| Choice 2 (Success) |
・ -10 Energy ・ 30 Skill Pts ・ Random Stat +3 |
| Choice 2 (Fail) |
・ -30 Energy ・ 30 Skill Pts ・ Random Stat +3 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -15 Energy ・ 45 Skill Pts ・ Random Stat +10 |
| Choice 2 (Success) |
・ -5 Energy ・ 45 Skill Pts ・ Random Stat +10 |
| Choice 2 (Fail) |
・ -20 Energy ・ 45 Skill Pts ・ Random Stat +10 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -15 Energy ・ 35 Skill Pts ・ Random Stat +8 |
| Choice 2 (Success) |
・ -5 Energy ・ 35 Skill Pts ・ Random Stat +8 |
| Choice 2 (Fail) |
・ -20 Energy ・ 35 Skill Pts ・ Random Stat +8 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -15 Energy ・ 35 Skill Pts ・ Random Stat +8 |
| Choice 2 (Success) |
・ -5 Energy ・ 35 Skill Pts ・ Random Stat +8 |
| Choice 2 (Fail) |
・ -20 Energy ・ 35 Skill Pts ・ Random Stat +8 |
| Choice | Outcome |
|---|---|
| Choice 1 |
・ -15 Energy ・ 30 Skill Pts ・ Random Stat +5 |
| Choice 2 (Success) |
・ -5 Energy ・ 30 Skill Pts ・ Random Stat +5 |
| Choice 2 (Fail) |
・ -20 Energy ・ 30 Skill Pts ・ Random Stat +5 |
| Goal | Race/Goal |
|---|---|
| Run in Junior Make Debut | Junior Make Debut |
| Place top 5 in Yayoi Sho |
Yayoi Sho
(Medium - 2000m) Classic Year Early Mar |
| Place top 5 in Satsuki Sho |
Satsuki Sho
(Medium - 2000m) Classic Year Early Apr |
| Place top 5 in Japenese Derby |
Japanese Derby (Tokyo Yushun)
(Medium - 2400m) Classic Year Late May |
| Place top 3 in Kikuka Sho |
Kikuka Sho
(Long - 3000m) Classic Year Late Oct |
| 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 Tenno Sho (Autumn) |
Tenno Sho (Autumn)
(Medium - 2000m) Senior Year Late Oct |
| Place 1st in Arima Kinen |
Arima Kinen
(Long - 2500m) Senior Year Late Dec |
Agnes Tachyon"Life is an experiment, and we its guinea pigs. You, me, the other Umamusume—everyone!" | Voice Actress | Sumire Uesaka |
|---|---|---|
| Height | 159cm / 5'2" | |
| Weight | Refused measurement | |
| Birthday | Apr 13 | |
| Three Sizes | B 83 | W 55 | H 81 | |
| Equal parts researcher and runner, Agnes Tachyon pursues the limits of speed with the power of science. She will stop at nothing to quench her pure thirst for knowledge, performing all manner of experiments on living subjects—unauthorized, dangerous experiments, at that. Her extreme tunnel vision means that without someone to support her, day-to-day necessities quickly fall to the wayside. | ||
| Uniform | Racewear |
|---|---|
![]() |
Tach-nology |

| Height and Weight | Voice Actors | Three Sizes | List of Birthdays |
| 3-Star Characters | 2-Star Characters | 1-Star Characters |
Good call, I was just about to brick my run
Agnes Tachyon (Tach-nology) Build Guide and Character Info

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Just got ‘Obtain Data!’ For the first time and chose the bottom option (throw in the towel), which gave 20 Power. Currently looks like the site has the results of ‘Tachyon the Spoiled Child’ repeated instead.