- “Your social class will not give you an advantage in this world. Victory is the only measure by which you are judged!”
- ―Symboli Rudolf
Symboli Rudolf (シンボリルドルフ, Shinbori Rudorufu)  is one of the supporting characters in Uma Musume: Pretty Derby.
Symboli Rudolf possesses a calm demeanor and speaks with wisdom. She judges with fairness and cares heavily for the school's image. Despite her strict and resolute stance, she worries a lot for the newly enrolled students and has a strong desire to protect them.
A horse girl full of charm whom admired by many. She has light brown hair that reaches her waist, her hair is darker on the front. A long streak of white hair is swept to the left along with the bangs. She wears an silver earring with a thin jade on her right ear. Her eyes are magenta that always fixed with a soft glare.
- SEVEN (Solo song)
- Daisuki No Takarabako
- Make Debut!
- Grow Up Shine!
- Special Record!
- GIRLS' LEGEND U
- Ring Ring Diary
- NEXT FRONTIER
- Never Looking Back
- winning the soul
- BLOW my GALE
- We are DREAMERS!!
- Umapyoi Densetsu
- Symboli Rudolf is a Japanese Triple Crown Horse Girl after winning the Satsuki Shō, Japanese Derby, and Kikuka Shō. She shares this accomplishment with Mr. C.B. and Narita Brian.
- She loves gags but is horrible at telling jokes, the only thing that Teio doesn't like about her. The only horse girl who seems to enjoy her jokes is Nice Nature.
- “In 1985, Japan Cup.
A man said, "There are no absolutes in horseracing, but 'that horse' has it."
The horse that people want to talk about only three defeats, rather than victories.
Symboli Rudolf, the everlasting emperor.
In that autumn, Japan had reached the world.”
- ―2013 Japan Cup commercial, by JRA
Symboli Rudolf is a racehorse in the 1980s. He became the fourth Triple Crown winner, with no defeat at first ever. He won seven G1s, breaking Shinzan's record. and called the Seven Crown.
- The record of winning turf seven G1/Jpn1s were tied by five horses, T.M. Opera O, Deep Impact, Vodka, Gentildonna and Kitasan Black. Almond Eye broke his record at 2020 Tenno Sho Autumn.
- His "only three defeats" are all dramatic, enough to be still told.
- At 1984 Japan Cup, He fought against Mr. C.B. at the first time. he finished earlier than C,B,. though, Katsuragi Ace finished at first. Rudolf is the second horse that won Japan Cup as a Japanese-trained horse.
- At 1985 Tenno Sho Autumn, "What a surprise" Gallop Dyna overtook Rudolf just in front of the winning post.
- He flew to the US in 1986 and ran San Luis Rey Stakes. He tripped of a crossing dirt course and lost in sixth. He retired afterward.