Kammala wannan jumla: Dan wasan Formula One na farko na Thai shi ne Prince Bira wanda ya halarci tseren Gasar Duniya 19 tsakanin da kuma. Ya zira kwallaye 8 kuma yana da matsayi mafi girma na karshe na matsayi na hudu wanda ya samu sau biyu: a 1950 Swiss Grand Prix da kuma
1954 Gasar Faransa. Matsayinsa mafi girma a ƙarshen kakar wasa shine 8th a ciki.