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AI-assisted profile
Rulership
AI-assisted · Retrospective review queued
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Editorial status
Retrospective review queued
Race results
20
Gallery images
1
2/2 draft profiles
JP
This page uses the persisted profile copy. New research cannot alter its public text until an editor reviews and publishes the change.
Registered name
Rulership
Rulership — or Rūrāshippu (ルーラーシップ), with the nickname Ruler — has the kind of name that arrives with a little weight behind it. Even before you get into the details, there is an air of command to her profile: a Ritto Dorm resident, 160 cm tall, voiced by Mizutama Umino, and carrying herself with the notably blunt self-pronoun ore. That single choice says a lot. It gives her presence a sharper edge, hinting at confidence, force, and a refusal to be boxed into anything too dainty or predictable.
Physically, she cuts a memorable figure, with listed measurements of 90-57-86 and a compact height that only makes the impression stronger. Rulership feels like the sort of Uma Musume whose charisma comes less from ornament and more from bearing — the sense that she knows exactly how she wants to stand in a room, and expects that room to make space. “Ruler” is a fitting shorthand: brisk, bold, and hard to ignore.
Her web of connections places her among some striking company. Eishin Flash, Rose Kingdom, and Victoire Pisa all appear in her related circle, and those same names are also listed as her rivals. That overlap gives her profile a nice competitive charge: the horses closest to her story are also the ones sharpening it. Victoire Pisa is additionally named as a stablemate, suggesting a particularly close point of association within that group.
There is not a long official personality writeup attached here, so Rulership’s appeal comes through in fragments — and they are good fragments. The strong nickname, the use of ore, the cleanly commanding image, the cluster of major rivals: together they sketch a character who feels assertive and self-possessed rather than soft-spoken. She reads as someone with a firm center of gravity, the kind of Uma Musume who brings drama simply by showing up and meaning it.
A few quick profile notes:
- Birthday: May 15
- Dorm: Ritto Dorm
- Height: 160 cm
- Three sizes: 90-57-86
- Self-pronoun: ore
- Voice actor: Mizutama Umino
- Related Uma Musume: Eishin Flash, Rose Kingdom, Victoire Pisa
- Rivals: Eishin Flash, Rose Kingdom, Victoire Pisa
- Stablemate: Victoire Pisa
Sources
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Relationship radar
Rulership
The center icon is the current Uma. Every outer icon is one unique Uma, while the link totals can be higher because one Uma may belong to more than one relationship group.
Unique Umas
13
Unique nodes visible in this radar
Total Links
13
All relationship links across the radar
Mutual Links
0
Two-way links across this web
Read the radar
How to read the radar
Closer rings mean tighter links. Gold-glow paths mark mutual links, while softer lines show one-way connections. A Uma that belongs to multiple groups is shown once using sector priority: Stablemates first, then Rivals, then Same Races, then Related. Switch modes to rotate that category into the clearest reading position, then hover or lock a node to see every group it belongs to.
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RulershipTouch and smaller layouts use grouped connection cards instead of the live radar. Open any entry to follow the relationship directly.
13 unique
13 linked
0 mutual
2 groups
Same races
Same Races
12 shared rivals
Eishin Flash
JP
Latest: ARIMA KINEN (THE GRAND PRIX) · 2012-12-23
8 shared
W-L-D 4-4-0
Rose Kingdom
JP
Latest: ARIMA KINEN (THE GRAND PRIX) · 2012-12-23
7 shared
W-L-D 4-2-0
Tosen Jordan
JP
Latest: JAPAN CUP · 2012-11-25
5 shared
W-L-D 4-1-0
Orfevre
JP
Latest: JAPAN CUP · 2012-11-25
3 shared
W-L-D 0-3-0
Buena Vista
JP
Latest: ARIMA KINEN (THE GRAND PRIX) · 2011-12-25
3 shared
W-L-D 1-2-0
Victoire Pisa
JP
Latest: ARIMA KINEN (THE GRAND PRIX) · 2011-12-25
3 shared
W-L-D 1-2-0
Fenomeno
JP
Latest: JAPAN CUP · 2012-11-25
2 shared
W-L-D 1-1-0
Win Variation
JP
Latest: TAKARAZUKA KINEN · 2012-06-24
2 shared
W-L-D 1-1-0
Dream Journey
JP
Latest: TAKARAZUKA KINEN · 2011-06-26
2 shared
W-L-D 2-0-0
Gold Ship
JP
Latest: ARIMA KINEN (THE GRAND PRIX) · 2012-12-23
1 shared
W-L-D 0-1-0
Gentildonna
JP
Latest: JAPAN CUP · 2012-11-25
1 shared
W-L-D 0-1-0
Red Desire
JP
Latest: ARIMA KINEN (THE GRAND PRIX) · 2010-12-26
1 shared
W-L-D 1-0-0
Mentioned By Related Umas
1 profile
20 starts
8 wins
14 podiums
4 seasons
1st
2nd
3rd
2009
2010
2011
2012
Dec 27
2yo DBT
Finished 1st · Maiden · at Hanshin · over 2000m
Jan 23
WAKAGOMA STAKES OP
Finished 2nd · OP · at Kyoto · over 2000m
Mar 07
ARMERIA SHO ALW (1 Win)
Finished 1st · Pre-OP · at Hanshin · over 1800m
Mar 27
MAINICHI HAI
Finished 5th · G3 · at Hanshin · over 1800m
May 08
PRINCIPAL STAKES OP
Finished 1st · OP · at Tokyo · over 2000m
May 30
TOKYO YUSHUN (JAPANESE DERBY)
Finished 5th · G1 · at Tokyo · over 2400m
Dec 04
NARUO KINEN
Finished 1st · G3 · at Hanshin · over 1800m
Dec 26
ARIMA KINEN (THE GRAND PRIX)
Finished 6th · G1 · at Nakayama · over 2500m
Jan 16
NIKKEI SHINSHUN HAI
Finished 1st · G2 · at Kyoto · over 2400m
Mar 26
Dubai Sheema Classic
Finished 6th · G1 · at Uae · over 2410m
May 28
KINKO SHO
Finished 1st · G2 · at Kyoto · over 2000m
Jun 26
TAKARAZUKA KINEN
Finished 5th · G1 · at Hanshin · over 2200m
Dec 25
ARIMA KINEN (THE GRAND PRIX)
Finished 4th · G1 · at Nakayama · over 2500m
Jan 22
AMERICAN JOCKEY CLUB CUP
Finished 1st · G2 · at Nakayama · over 2200m
Mar 24
NIKKEI SHO
Finished 3rd · G2 · at Nakayama · over 2500m
Apr 29
Queen Elizabeth II Cup
Finished 1st · G1 · at Hong Kong · over 2000m
Jun 24
TAKARAZUKA KINEN
Finished 2nd · G1 · at Hanshin · over 2200m
Oct 28
TENNO SHO (AUTUMN)
Finished 3rd · G1 · at Tokyo · over 2000m
Nov 25
JAPAN CUP
Finished 3rd · G1 · at Tokyo · over 2400m
Dec 23
ARIMA KINEN (THE GRAND PRIX)
Finished 3rd · G1 · at Nakayama · over 2500m
Rulership was a bay Japanese racehorse and later stallion, foaled on 15 May 2007. Bred by Northern Farm, he raced in the colours of Sunday Racing Co. Ltd. and was trained by Katsuhiko Sumii.
Career at a glance
Track record
Featured races
Finished 1st · G1 · at Hong Kong · over 2000m · Hong Kong (JP)
Finished 1st · G3 · at Hanshin · over 1800m · Hanshin (JP)
Finished 1st · G2 · at Nakayama · over 2200m · Nakayama (JP)
At a glance
Registered nameRulership
His profile fits the classic middle-distance mould, and his career was substantial enough to produce JRA earnings of ¥549.76 million.
He was exceptionally well bred even by elite Japanese standards. Rulership was sired by King Kamehameha and out of Air Groove, with Tony Bin as his damsire. That made him part of a distinguished family that also included Admire Groove, winner of the Queen Elizabeth 2 Commemorative Cup, along with other black-type relatives such as Forgettable and Gullveig. In public terms, he was very much a horse whose pedigree invited attention long before his racing career was complete.
That background was matched by the scale of the operation behind him. Northern Farm bred him, Sunday Racing campaigned him, and Sumii handled his training from Ritto. The ownership details also reflect his commercial appeal: he was offered on a 40-share syndicate basis, at ¥4.50 million per share, underscoring the esteem in which his bloodlines and racing potential were held.
Rulership’s racing record, as reflected in the available archive data, marks him as a high-class and durable performer rather than just a blue-blooded prospect. His earnings place him among the more accomplished Japanese runners of his generation, and his identity in the record is firmly that of a successful homebred from one of the country’s most influential breeding and ownership networks.
After racing, Rulership retired to stud, continuing the role that his pedigree had long suggested for him. His significance rests in that combination of racecourse achievement, major commercial backing, and a family rich in top-level performers. He stands as a representative example of modern Japanese breeding strength: a Northern Farm product by King Kamehameha, from the celebrated Air Groove line, who carried those expectations through a lucrative racing career and on into stallion duty.
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| Date | Race | Grade | Course | Going | Dist | Pos | Draw | Jockey | Wgt | SP | Time |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2012-12-23 |
ARIMA KINEN (THE GRAND PRIX)
|
G1 | Nakayama (JP) | Good | 2500 m | 3 | 9 | C.Williams | 57.0 kg | 3.7 | 2:32.2 |
| 2012-11-25 | G1 | Tokyo (JP) | Good | 2400 m | 3 | 13 | C.Williams | 57.0 kg | 5.4 | 2:23.5 | |
| 2012-10-28 |
TENNO SHO (AUTUMN)
|
G1 | Tokyo (JP) | Good | 2000 m | 3 | 6 | I.Mendizabal | 58.0 kg | 4.5 | 1:57.6 |
| 2012-06-24 |
TAKARAZUKA KINEN
|
G1 | Hanshin (JP) | Good | 2200 m | 2 | 7 | C.Williams | 58.0 kg | 4.4 | 2:11.2 |
| 2012-04-29 |
Queen Elizabeth II Cup
|
G1 | Hong Kong (JP) | Good to Soft | 2000 m | 1 | 4 | U.Rispoli | 57.0 kg | 0.0 | 2:02.38 |
| 2012-03-24 |
NIKKEI SHO
|
G2 | Nakayama (JP) | Soft | 2500 m | 3 | 13 | Yuichi Fukunaga | 57.0 kg | 1.4 | 2:38.1 |
| 2012-01-22 |
AMERICAN JOCKEY CLUB CUP
|
G2 | Nakayama (JP) | Heavy | 2200 m | 1 | 3 | Yuichi Fukunaga | 57.0 kg | 1.4 | 2:17.3 |
| 2011-12-25 |
ARIMA KINEN (THE GRAND PRIX)
|
G1 | Nakayama (JP) | Good | 2500 m | 4 | 14 | I.Mendizabal | 57.0 kg | 52.9 | 2:36.2 |
| 2011-06-26 |
TAKARAZUKA KINEN
|
G1 | Hanshin (JP) | Good | 2200 m | 5 | 3 | Norihiro Yokoyama | 58.0 kg | 3.7 | 2:11.0 |
| 2011-05-28 |
KINKO SHO
|
G2 | Kyoto (JP) | Heavy | 2000 m | 1 | 13 | Yuichi Fukunaga | 58.0 kg | 2.8 | 2:02.4 |
| 2011-03-26 |
Dubai Sheema Classic
|
G1 | Uae (JP) | Good | 2410 m | 6 | 10 | - | 56.5 kg | 0.0 | - |
| 2011-01-16 |
NIKKEI SHINSHUN HAI
|
G2 | Kyoto (JP) | Good | 2400 m | 1 | 8 | U.Rispoli | 56.5 kg | 3.2 | 2:24.6 |
| 2010-12-26 |
ARIMA KINEN (THE GRAND PRIX)
|
G1 | Nakayama (JP) | Good | 2500 m | 6 | 5 | Christophe Lemaire | 55.0 kg | 17.6 | 2:33.0 |
| 2010-12-04 |
NARUO KINEN
|
G3 | Hanshin (JP) | Good | 1800 m | 1 | 11 | Yasunari Iwata | 55.0 kg | 3.9 | 1:44.9 |
| 2010-05-30 |
TOKYO YUSHUN (JAPANESE DERBY)
|
G1 | Tokyo (JP) | Good | 2400 m | 5 | 3 | H.Shii | 57.0 kg | 14.5 | 2:27.2 |
| 2010-05-08 |
PRINCIPAL STAKES OP
|
OP | Tokyo (JP) | Good | 2000 m | 1 | 5 | Norihiro Yokoyama | 56.0 kg | 1.9 | 1:59.1 |
| 2010-03-27 |
MAINICHI HAI
|
G3 | Hanshin (JP) | Good | 1800 m | 5 | 2 | Yasunari Iwata | 56.0 kg | 2.2 | 1:49.8 |
| 2010-03-07 |
ARMERIA SHO ALW (1 Win)
|
Pre-OP | Hanshin (JP) | Good to Soft | 1800 m | 1 | 14 | Yasunari Iwata | 56.0 kg | 1.4 | 1:51.2 |
| 2010-01-23 |
WAKAGOMA STAKES OP
|
OP | Kyoto (JP) | Good | 2000 m | 2 | 2 | Yasunari Iwata | 56.0 kg | 1.7 | 2:02.2 |
| 2009-12-27 |
2yo DBT
|
Maiden | Hanshin (JP) | Good | 2000 m | 1 | 1 | Yasunari Iwata | 55.0 kg | 1.5 | 2:04.7 |
ARIMA KINEN (THE GRAND PRIX)
2012-12-23 · Nakayama (JP)
3
Grade
G1
Going
Good
Distance
2500 m
Draw
9
Jockey
C.Williams
Weight
57.0 kg
SP
3.7
Time
2:32.2
Also in this race
JAPAN CUP
2012-11-25 · Tokyo (JP)
3
Grade
G1
Going
Good
Distance
2400 m
Draw
13
Jockey
C.Williams
Weight
57.0 kg
SP
5.4
Time
2:23.5
Also in this race
TENNO SHO (AUTUMN)
2012-10-28 · Tokyo (JP)
3
Grade
G1
Going
Good
Distance
2000 m
Draw
6
Jockey
I.Mendizabal
Weight
58.0 kg
SP
4.5
Time
1:57.6
Also in this race
TAKARAZUKA KINEN
2012-06-24 · Hanshin (JP)
2
Grade
G1
Going
Good
Distance
2200 m
Draw
7
Jockey
C.Williams
Weight
58.0 kg
SP
4.4
Time
2:11.2
Also in this race
Queen Elizabeth II Cup
2012-04-29 · Hong Kong (JP)
1
Grade
G1
Going
Good to Soft
Distance
2000 m
Draw
4
Jockey
U.Rispoli
Weight
57.0 kg
SP
0.0
Time
2:02.38
NIKKEI SHO
2012-03-24 · Nakayama (JP)
3
Grade
G2
Going
Soft
Distance
2500 m
Draw
13
Jockey
Yuichi Fukunaga
Weight
57.0 kg
SP
1.4
Time
2:38.1
Also in this race
AMERICAN JOCKEY CLUB CUP
2012-01-22 · Nakayama (JP)
1
Grade
G2
Going
Heavy
Distance
2200 m
Draw
3
Jockey
Yuichi Fukunaga
Weight
57.0 kg
SP
1.4
Time
2:17.3
ARIMA KINEN (THE GRAND PRIX)
2011-12-25 · Nakayama (JP)
4
Grade
G1
Going
Good
Distance
2500 m
Draw
14
Jockey
I.Mendizabal
Weight
57.0 kg
SP
52.9
Time
2:36.2
Also in this race
TAKARAZUKA KINEN
2011-06-26 · Hanshin (JP)
5
Grade
G1
Going
Good
Distance
2200 m
Draw
3
Jockey
Norihiro Yokoyama
Weight
58.0 kg
SP
3.7
Time
2:11.0
Also in this race
KINKO SHO
2011-05-28 · Kyoto (JP)
1
Grade
G2
Going
Heavy
Distance
2000 m
Draw
13
Jockey
Yuichi Fukunaga
Weight
58.0 kg
SP
2.8
Time
2:02.4
Dubai Sheema Classic
2011-03-26 · Uae (JP)
6
Grade
G1
Going
Good
Distance
2410 m
Draw
10
Jockey
-
Weight
56.5 kg
SP
0.0
Time
-
NIKKEI SHINSHUN HAI
2011-01-16 · Kyoto (JP)
1
Grade
G2
Going
Good
Distance
2400 m
Draw
8
Jockey
U.Rispoli
Weight
56.5 kg
SP
3.2
Time
2:24.6
Also in this race
ARIMA KINEN (THE GRAND PRIX)
2010-12-26 · Nakayama (JP)
6
Grade
G1
Going
Good
Distance
2500 m
Draw
5
Jockey
Christophe Lemaire
Weight
55.0 kg
SP
17.6
Time
2:33.0
NARUO KINEN
2010-12-04 · Hanshin (JP)
1
Grade
G3
Going
Good
Distance
1800 m
Draw
11
Jockey
Yasunari Iwata
Weight
55.0 kg
SP
3.9
Time
1:44.9
TOKYO YUSHUN (JAPANESE DERBY)
2010-05-30 · Tokyo (JP)
5
Grade
G1
Going
Good
Distance
2400 m
Draw
3
Jockey
H.Shii
Weight
57.0 kg
SP
14.5
Time
2:27.2
Also in this race
PRINCIPAL STAKES OP
2010-05-08 · Tokyo (JP)
1
Grade
OP
Going
Good
Distance
2000 m
Draw
5
Jockey
Norihiro Yokoyama
Weight
56.0 kg
SP
1.9
Time
1:59.1
MAINICHI HAI
2010-03-27 · Hanshin (JP)
5
Grade
G3
Going
Good
Distance
1800 m
Draw
2
Jockey
Yasunari Iwata
Weight
56.0 kg
SP
2.2
Time
1:49.8
ARMERIA SHO ALW (1 Win)
2010-03-07 · Hanshin (JP)
1
Grade
Pre-OP
Going
Good to Soft
Distance
1800 m
Draw
14
Jockey
Yasunari Iwata
Weight
56.0 kg
SP
1.4
Time
1:51.2
WAKAGOMA STAKES OP
2010-01-23 · Kyoto (JP)
2
Grade
OP
Going
Good
Distance
2000 m
Draw
2
Jockey
Yasunari Iwata
Weight
56.0 kg
SP
1.7
Time
2:02.2
2yo DBT
2009-12-27 · Hanshin (JP)
1
Grade
Maiden
Going
Good
Distance
2000 m
Draw
1
Jockey
Yasunari Iwata
Weight
55.0 kg
SP
1.5
Time
2:04.7
Citations
Race Result Sources
AI Race Import 2026-07-03 12:29 UTC
Imported and enriched race results from supported racing sources.
Created: 20
Updated: 0
Skipped: 0