Birth Chart and Horoscope of 250cc world championship riders
- Adrien Morillas
- Alan Shepherd
- Alessio Palumbo
- Alex Hofmann
- Andreas Mårtensson
- Angel Nieto
- Anthony West (motorcyclist)
- Arnaud Vincent
- August Auinger
- Balázs Németh
- Barrett Long
- Bastien Chesaux
- Benjamin Grau
- Bill Ivy
- Bob Brown (motorcyclist)
- Boet van Dulmen
- Bram Appelo
- Bubba Shobert
- Christian Estrosi
- Christian Sarron
- Cristiano Migliorati
- Cristiano Vieira
- César Barros (motorcyclist)
- Daniel Arcas
- Daryl Beattie
- David Checa
- Derek Minter
- Dickie Dale
- Dieter Braun
- Dominique Sarron
- Doni Tata Pradita
- Duilio Agostini
- Emilio Alzamora
- Eskil Suter
- Fabricio Perren
- Federico Sandi
- Frank Perris
- Franz Aschenbrenner
- Freddie Spencer
- Frederik Watz
- Gabriele Ferro
- Giuseppe Visenzi
- Gregg Hansford
- Hans Smees
- Haruchika Aoki
- Hiroshi Aoyama
- Ho Chi Fung
- Horst Fügner
- Huang Shizhao
- Iván Palazzese
- Jan Huberts
- Jan Roelofs
- Jason DiSalvo
- Jean-Michel Bayle
- Jean-Pierre Beltoise
- Jeff Sayle
- Jim Filice
- Jim Redman
- John Kocinski
- John McGuinness (motorcyclist)
- John Surtees
- Josh Waters
- Joshua Sommer
- José Luis Cardoso
- João Fernandes (motorcyclist)
- Jules Cluzel
- János Drapál
- Keith Campbell (motorcyclist)
- Kel Carruthers
- Ken Roberts
- Kouki Takahashi
- Kurtis Roberts
- Leslie Graham
- Lorenzo Lanzi
- Luca Morelli
- Luigi Taveri
- Luke Lawrence
- László Szabó (motorcyclist)
- Marco Melandri
- Marco Simoncelli
- Maurizio Massimiani
- Max Biaggi
- Max Sabbatani
- Michele Danese
- Michelle Duff
- Mike Hailwood
- Nicklas Cajback
- Noriyasu Numata
- Olivier Jacque
- Omar Menghi
- Osamu Miyazaki
- Pentti Korhonen
- Phil Read
- Pierfrancesco Chili
- Ralf Waldmann
- Ralph Bryans
- Randy Gevers
- Randy Mamola
- Randy de Puniet
- Raymond Roche
- Raymond Schouten
- Renzo Pasolini
- Roberto Colombo (motorcyclist)
- Roberto Gallina
- Roberto Locatelli
- Rodney Gould
- Ronald Beitler
- Russell Holland
- Ryuji Yokoe
- Régis Laconi
- Santiago Barragán
- Scott Smart
- Seijin Oikawa
- Shaun Geronimi
- Shoya Tomizawa
- Shuhei Aoyama
- Simone Corsi
- Simone Grotzkyj
- Stevie Bonsey
- Stéphane Mertens
- Su Rongzai
- Sébastien Gimbert
- Sérgio Batista
- Takumi Endoh
- Takumi Takahashi
- Taro Sekiguchi
- Tarquinio Provini
- Teuvo Länsivuori
- Thomas Walther
- Toby Markham
- Tom Lüthi
- Tomomi Manako
- Toni Wirsing
- Valentino Rossi
- Wayne Rainey
- Werner Haas
- Xiao Jin
- Yuki Hamamoto
- Yuuki Ito (motorcyclist)