User:One piece of stardust - Revision history

One piece of stardust at 08:28, 28 February 2026

2026-02-28T08:28:26Z

← Older revision		Revision as of 08:28, 28 February 2026
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	{\| class="wikitable"		{\| class="wikitable"
	\|-		\|-
	! Trainee !! Default !! ~~Number of~~ Races Needed		! Trainee !! Default (Career Goal Only) !! Optional Races Needed
	\|-		\|-
	\| {{Character round icon\|Gold Ship}}		\| {{Character round icon\|Gold Ship}}
	\|\| Medium \|\| Long: 1-2		\|\| Medium \|\| Long: 2
	\|-		\|-
	\| {{Character round icon\|Haru Urara}}		\| {{Character round icon\|Haru Urara}}
	\|\| Sprint \|\| Mile: 1-2		\|\| Sprint \|\| Mile: 2
	\|-		\|-
	\| {{Character round icon\|King Halo}}		\| {{Character round icon\|King Halo}}
	\|\| Medium \|\| Mile: 2-3<br>Sprint: 2-3		\|\| Medium \|\| Mile: 3<br>Sprint: 3
	\|-		\|-
	\| {{Character round icon\|Super Creek}}		\| {{Character round icon\|Super Creek}}
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	\|-		\|-
	\| {{Character round icon\|Oguri Cap}}		\| {{Character round icon\|Oguri Cap}}
	\|\| Mile \|\| Medium: 2-3<br>Long: 1-2		\|\| Mile \|\| Medium: 3<br>Long: 2
	\|-		\|-
	\| {{Character round icon\|Taiki Shuttle}}		\| {{Character round icon\|Taiki Shuttle}}
	\|\| Mile \|\| Sprint: 8-9		\|\| Mile \|\| Sprint: 9
	\|-		\|-
	\| {{Character round icon\|Mejiro McQueen}}		\| {{Character round icon\|Mejiro McQueen}}
	\|\| Medium \|\| Long: 2-3		\|\| Medium \|\| Long: 3
	\|-		\|-
	\| {{Character round icon\|Maruzensky}}		\| {{Character round icon\|Maruzensky}}
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	\|-		\|-
	\| {{Character round icon\|Narita Brian}}		\| {{Character round icon\|Narita Brian}}
	\|\| Long \|\| Mile: 3-4<br>Medium: 1-2		\|\| Long \|\| Mile: 4<br>Medium: 2
			\|-
			\| {{Character round icon\|Manhattan Cafe}}
			\|\| Medium \|\| Long: 3
			\|-
			\| {{Character round icon\|Seiun Sky}}
			\|\| Medium \|\| Long: 3
	\|}		\|}

One piece of stardust at 19:34, 3 October 2025

2025-10-03T19:34:31Z

← Older revision		Revision as of 19:34, 3 October 2025
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	=~~Forcing~~ URA Finale Distance=		=URA Finale Distance=
	{\| class="wikitable"		{\| class="wikitable"
	\|-		\|-
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	\|-		\|-
	\| {{Character round icon\|Super Creek}}		\| {{Character round icon\|Super Creek}}
	\|\| ~~Unknown <small>(tied medium~~/~~long)</small>~~ \|\| Medium: 1<br>Long: 1		\|\| Medium/Long \|\| Medium: 1<br>Long: 1
	\|-		\|-
	\| {{Character round icon\|Oguri Cap}}		\| {{Character round icon\|Oguri Cap}}
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	\|-		\|-
	\| {{Character round icon\|Maruzensky}}		\| {{Character round icon\|Maruzensky}}
	\|\| ~~Unknown <small>(tied mile~~/~~medium)</small>~~ \|\| Mile: 1<br>Medium: 1		\|\| Mile/Medium \|\| Mile: 1<br>Medium: 1
	\|-		\|-
	\| {{Character round icon\|Narita Brian}}		\| {{Character round icon\|Narita Brian}}

One piece of stardust at 19:34, 3 October 2025

2025-10-03T19:34:02Z

@@ Line 1: / Line 1: @@
 =Actual Skill Effects=
 <br>
@@ Line 176: / Line 209: @@
 * Stamina Eater (-0.5%, 1.5%)
 * Stamina Siphon (-2%, 5.5%)

One piece of stardust at 19:31, 3 October 2025

2025-10-03T19:31:56Z

@@ Line 181: / Line 181: @@
 |-
 ! Trainee !! Default !! Number of Races Needed
 |-
 | {{Character round icon|Maruzensky}}
-|| Unknown (tied between mile/medium || Mile: 1
+|| Unknown (tied mile/medium) || Mile: 1<br>Medium: 1
 |-
-| {{Character round icon|Gold Ship}}
+| {{Character round icon|Narita Brian}}
-|| Medium || Long: 2
+|| Long || Mile: 3-4<br>Medium: 1-2
 |}

One piece of stardust at 23:40, 2 October 2025

2025-10-02T23:40:08Z

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One piece of stardust at 19:22, 1 October 2025

2025-10-01T19:22:40Z

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One piece of stardust at 18:57, 1 October 2025

2025-10-01T18:57:46Z

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One piece of stardust at 17:44, 1 October 2025

2025-10-01T17:44:14Z

← Older revision		Revision as of 17:44, 1 October 2025
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	Order modifier is applied in the final leg and last spurt.		Order modifier is applied in the final leg and last spurt.<br>
	<math>OrderModifier=1+Order*0.01</math>		<math>OrderModifier=1+Order*0.01</math>

	Current speed changes towards target speed over time. This value is not directional. Acceleration is a constant. Current speed resets to 0 when the target lane is reached.		Current speed changes towards target speed over time. This value is not directional. Acceleration is a constant. Current speed resets to 0 when the target lane is reached.<br>
	<math>Accel=0.02*1.5</math>		<math>Accel=0.02*1.5</math>

	Actual speed accounts for skills, and is faster when moving inward.		Actual speed accounts for skills, and is faster when moving inward.<br>
	<math>ActualSpeed=clamp(CurrentSpeed+SkillModifier,0, 0.6)*DirectionModifier</math>		<math>ActualSpeed=clamp(CurrentSpeed+SkillModifier,0, 0.6)*DirectionModifier</math>

	Direction modifier is 1 when moving out. And affected by lane distance when moving in.		Direction modifier is 1 when moving out. And affected by lane distance when moving in.<br>
	<math>DirectionModifierOut=1</math>		<math>DirectionModifierOut=1</math>
	<math>DirectionModifierIn=-(1+LaneDistance)</math>		<math>DirectionModifierIn=-(1+LaneDistance)</math>

One piece of stardust: Replaced content with "Order modifier is applied in the final leg and last spurt. $OrderModifier=1+Order0.01$ Current speed changes towards target speed over time. This value is not directional. Acceleration is a constant. Current speed resets to 0 when the target lane is reached. $Accel=0.021.5$ Actual speed accounts for skills, and is faster when moving inward. $ActualSpeed=clamp(CurrentSpeed+SkillModifier,0, 0.6)*DirectionModifier$ Direction modifie..."

2025-10-01T17:43:49Z

Replaced content with "Order modifier is applied in the final leg and last spurt. <math>OrderModifier=1+Order*0.01</math> Current speed changes towards target speed over time. This value is not directional. Acceleration is a constant. Current speed resets to 0 when the target lane is reached. <math>Accel=0.02*1.5</math> Actual speed accounts for skills, and is faster when moving inward. <math>ActualSpeed=clamp(CurrentSpeed+SkillModifier,0, 0.6)*DirectionModifier</math> Direction modifie..."

Show changes

One piece of stardust at 03:30, 1 October 2025

2025-10-01T03:30:51Z

← Older revision		Revision as of 03:30, 1 October 2025
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			<div class="mw-collapsible mw-collapsed">
	This page lists various mechanics used in the [[Umamusume: Pretty Derby (mobile game)\|game]].		This page lists various mechanics used in the [[Umamusume: Pretty Derby (mobile game)\|game]].

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	<br>		<br>
	==Mood==		==Mood==
	Base stats are raw stats modified by ~~Mood~~. This number is used sometimes instead of the final stat, most notably by skill activation chance. Base stat is clamped between 1 and 2000.		Base stats are raw stats modified by mood. This number is used sometimes instead of the final stat, most notably by skill activation chance. Base stat is clamped between 1 and 2000.
	<pre>BaseStat=(RawStats+AoharuTeamRankBonus)*MoodCoef</pre>		<pre>BaseStat=(RawStats+AoharuTeamRankBonus)*MoodCoef</pre>

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	A trainee's lane is measured by distance from the inner fence. The unit used in calculation is course width. 1 course width = 11.25m. The game also uses the unit "horse lane" to measure relative distance, where 1 horse lane = 1/18 course width.		A trainee's lane is measured by distance from the inner fence. The unit used in calculation is course width. 1 course width = 11.25m. The game also uses the unit "horse lane" to measure relative distance, where 1 horse lane = 1/18 course width.

	The minimum lane distance is 0, while the maximum differs between ~~race courses~~. The widest ~~race course~~ is the turf course in Tokyo with 1.5 course width, and the narrowest being 3 dirt courses in Sapporo, Hakodate, Niigata with 1.1 course width.		The minimum lane distance is 0, while the maximum differs between [[Game:List of Racecourses\|racecourses]]. The widest racecourse is the turf course in Tokyo with 1.5 course width, and the narrowest being 3 dirt courses in Sapporo, Hakodate, Niigata with 1.1 course width.

	The maximum may change throughout the race, though the only instances of this are Nakayama 2000m and some distances of Hanshin racecourse. It is unclear how this affects a race, if at all.		The maximum may change throughout the race, though the only instances of this are Nakayama 2000m and some distances of Hanshin racecourse. It is unclear how this affects a race, if at all.
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	* End Closers have a 70% chance to become Front Runners, 20% chance to become Pace Chaser, 10% chance to become Late Surgers.		* End Closers have a 70% chance to become Front Runners, 20% chance to become Pace Chaser, 10% chance to become Late Surgers.

	Every 3 seconds in Rushed, the trainee has a 55% chance to snap out of it. Rushed ends if the trainee is still affected after 12 seconds. Rushed-related debuffs extend the Rushed timer by 5 seconds, and this effect can be applied multiple times.		Every 3 seconds in Rushed, the trainee has a 55% chance to snap out of it. Rushed ends if the trainee is still affected after 12 seconds. Rushed-related debuffs ("Frenzied" skills) extend the Rushed timer by 5 seconds, and this effect can be applied multiple times.

	==Vision==		==Vision==
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	===Base Stats===		===Base Stats===
	Base stats are raw stats modified by ~~Mood~~. This number is used sometimes instead of the final stat, most notably by skill activation chance. Base stat is clamped between 1 and 2000.		Base stats are raw stats modified by mood. This number is used sometimes instead of the final stat, most notably by skill activation chance. Base stat is clamped between 1 and 2000.
	<pre>BaseStat=(RawStats+AoharuTeamRankBonus)*MoodCoef</pre>		<pre>BaseStat=(RawStats+AoharuTeamRankBonus)*MoodCoef</pre>

	{\| class="wikitable" style= "border:2px solid #81c879;text-align:center;color:#804116;"		{\| class="wikitable" style= "border:2px solid #81c879;text-align:center;color:#804116;"
	\|+ style="font-family: UmaRodin;background-color:#5ec00c;color:white;padding:3px 20px;border-top-left-radius:25px;border-top-right-radius:25px;font-size:16px;font-weight: normal;"\|Mood Coefficients		\|+ style="font-family: UmaRodin;background-color:#5ec00c;color:white;padding:3px 20px;border-top-left-radius:25px;border-top-right-radius:25px;font-size:16px;font-weight: normal;"\| Mood Coefficients
	\|-		\|-
	! Awful !! Bad !! Normal !! Good !! Great		! Awful !! Bad !! Normal !! Good !! Great
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	====Base Speed====		====Base Speed====
	A race's base speed is determined by ~~race course~~ distance.		A race's base speed is determined by racecourse distance.
	<pre>BaseSpeed=20.0-(CourseDistance-2000m)/1000[m/s]</pre>		<pre>BaseSpeed=20.0-(CourseDistance-2000m)/1000[m/s]</pre>
	Examples:		Examples:
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	If HP is insufficient, a list of last spurt speed and distance candidates are calculated by lowering the target speed by 0.1m/s each step, till the last spurt speed reaches base target speed of the final leg. Then candidates are sorted by the time it would take to finish the race (sum of respective distance divided by speed, ignoring acceleration). Going from best to worst time, each candidate has a chance of 15+0.05*WitStat[%] chance to be accepted. If all candidates are exhausted without passing the wit check, the slowest candidate is chosen.		If HP is insufficient, a list of last spurt speed and distance candidates are calculated by lowering the target speed by 0.1m/s each step, till the last spurt speed reaches base target speed of the final leg. Then candidates are sorted by the time it would take to finish the race (sum of respective distance divided by speed, ignoring acceleration). Going from best to worst time, each candidate has a chance of 15+0.05*WitStat[%] chance to be accepted. If all candidates are exhausted without passing the wit check, the slowest candidate is chosen.

	Last spurt calculation estimates the stamina usage up to 60m before the goal line. The calculation does not take into account the time it takes to accelerate to target speed. If an HP recovery skill activates after entering the final leg, the last spurt speed and distance are re-calculated. Debuffs on the other hand do not trigger a re-calculation.		Last spurt calculation estimates the stamina usage up to 60m before the goal line. The calculation does not take into account the time it takes to accelerate to target speed. If an HP recovery skill activates after entering the final leg, the last spurt speed and distance are re-calculated. Debuffs, on the other hand, do not trigger a re-calculation.

	===Acceleration===		===Acceleration===
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	\|}		\|}

	====HP Recovery ~~SKills~~====		====HP Recovery Skills====
	HP ~~can be recovered by skills. All~~ skills ~~that restore HP~~ instantly restore a percentage of max HP. Any HP recovered that goes over the max is wasted. All skills ~~that restore HP functions~~ identically outside their trigger condition and amount.		HP recovery skills instantly restore a certain percentage of the trainee's max HP. Any HP recovered that goes over the max is wasted. All HP recovery skills function identically outside their trigger condition and amount.

	====Running out of HP====		====Running out of HP====
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	=====Stamina Limit Break=====		=====Stamina Limit Break=====
	If the trainee's base stamina + skills bonus is higher than 1200, she will gain an additional target speed buff upon reaching max spurt speed. The buff lasts till the end of the race.		If the trainee's base stamina + skills bonus is higher than 1200, she will gain an additional target speed buff upon reaching max spurt speed. The buff lasts till the end of the race.

	<pre>TargetSpeedBuff=sqrt(StaminaStat-1200)0.0085DistanceFactor*RandomFactor[m/s]</pre>		<pre>TargetSpeedBuff=sqrt(StaminaStat-1200)0.0085DistanceFactor*RandomFactor[m/s]</pre>

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	====MultiplySpeed====		====MultiplySpeed====
	Scales with the trainee's final speed stat. This includes raw stat, mood modifier, ground modifier, ~~race course~~ modifier, and skills.		Scales with the trainee's final speed stat. This includes raw stat, mood modifier, ground modifier, racecourse modifier, and skills.

	Type 1 (ID=22)		Type 1 (ID=22)
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	==Hidden Stat Requirements==		==Hidden Stat Requirements==
	Some ~~race courses~~ have 1-2 stats as threshold stats. Having base stat that exceeds threshold provides a bonus to adjusted speed.		Some racecourses have 1-2 stats as threshold stats. Having base stat that exceeds threshold provides a bonus to adjusted speed.
	* Stat <= 300, +0.05x		* Stat <= 300, +0.05x
	** 300 < Stat <= 600, +0.1x		** 300 < Stat <= 600, +0.1x
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	The final modifier is the average of modifiers for all threshold stats. Therefore, the maximum bonus achievable is +0.2x.		The final modifier is the average of modifiers for all threshold stats. Therefore, the maximum bonus achievable is +0.2x.

	~~=Credits=~~		</div>
	Credit to @KuromiAK on Discord who made the original mechanics document that much of this information was pulled from and @umamusu_reveng, @kak_eng and, @hoffe_3 who reverse engineered and discovered much of this information.

	~~{{DEFAULTSORT:Mechanics}}~~