Masami Hirosaka (広坂正美 Hirosaka Masami?, born February 26, 1970, Kyoto, Japan) is a Japanese radio controlled car (RC) driver who is considered to be the world's most successful with a record fourteen IFMAR World Championships in 1/12 scale electric, 1/10 scale Pan, 1/10 scale 2WD off road and 1/10 scale 4WD, all electric. He was considered to be one of the highest paid drivers in RC racing, until he retired from the activity. His last IFMAR race was the 2008 world championship in Thailand. His retirement ceremony was on May 3, 2009.
Masami was first brought into RC car racing at the age of seven by his father Masaaki, Yokomo's research and development employee and radio controlled car racer, when he brought him a Tamiya Lamborghini Countach. They raced together for four years until upon realizing Masami was the better driver, Masaaki retired from racing to focus on becoming his mechanic.
In 1987, during a world championship round for the 4WD off-road at Romsey, England, Hirosaka arrived as a privateer with a Schumacher CAT, bar being provided power sources from HPI Japan. He had shown promise during practice and was brought into attention by Phil Booth, Schumacher's works driver who referred him to Cecil Schumacher, who provided him a longer wheelbase version called the CAT XL, then unavailable in Japan and was raced by a majority of racers. Despite being near-stock with much of the running gear added on from his old CAT, Hirosaka managed to win the title. After the win, he was given numerous offers from sponsors before he ultimately settled with Yokomo.
Hirosaka currently races for Yokomo and Associated Electrics where he helps develop and design new cars and tests the resulting prototypes. Of all his IFMAR championship wins, only his first title was won driving cars from neither of these manufacturers. He was driving a Schumacher CAT XL.
For once or twice a week, he practices for 100 runs, a majority of these is done on-road to improve his reflexes.
In a 1998 interview with Germany's KEIL DTM magazine, Hirosaka listed his other hobbies as computers and theater. His father who is now semi-retired, runs an RC car preparation service whilst doing contract work for Kyosho. In a 1999 interview with RCCA, he said that he has appeared several times on Japanese TV, and in a cartoon. He also says that he has several non-RC sponsors, such as Pioneer.
Throughout his career, Masami has always raced in the green over white with pink flames (similar style to those found typically in hot rods), but since the 1990s, the pink colour has become less dominant part of the colour as he added the orange and red to form part of his current colour scheme.
Throughout his competition career, Hirosaka has a total of 307 victories out of a total of 447 races, with 47 second place finishes and 27 third.
He has a total of 37 World Championship starts with 25 podium appearances including 14 championship titles and 35 A-main appearances.
Out of a total of 70 JMRCA All-Japan Championship appearances, he won 52 of those spanning 21 consecutive years (1986-2006), 67 of those are A-main appearances.
In 1998, he is the only driver to achieve a electric car clean sweep at the JMRCA All-Japan Championship with five out of five wins in classes available for him to compete, a feat no longer possible since 2005 when the 1:10 Racing class was discontinued.
An article by Radio Controlled Car Action list him on the top spot as the greatest driver of all time
|1986||16||1:12 EP Track||Las Vegas|
|1987||8||1:10 EP Off-Road 2WD||Romsey||Associated RC10||HPI||KO Propo|
|1987||1||1:10 EP Off-Road 4WD||Romsey||Schumacher CAT XL||HPI||KO Propo|
|1988||1||1:12 EP Track||Baarn||Yokomo||Associated RC12L||Reedy||Novak T1||KO Propo|
|1988||1||1:10 EP Off-road 2WD||St Ives||Yokomo||Associated RC10||Reedy||KO Propo|
|1988||1||1:10 EP Off-road 4WD||St Ives||Yokomo||Yokomo YZ-870C||Reedy||KO Propo|
|1990||2||1:12 EP Track||Singapore||Yokomo||Associated RC12L||Reedy||KO Propo|
|1991||1||1:10 EP Off-road 2WD||Michigan||Yokomo||Associated RC10L||Reedy||Novak 410-HPc||KO Propo|
|1992||3||1:12 EP Track||Michigan||Yokomo||Associated RC12LW||Reedy||KO Propo|
|1993||1||1:10 EP Off-road 4WD||Basildon||Yokomo||Yokomo YZ-10 Works '93||Reedy||Novak 410-HPc||KO Propo|
|1994||1||1:10 PRO 10||Paris||Yokomo||Yokomo||Reedy||KO Propo|
|1994||1||1:12 EP Track||Paris||Yokomo||Associated RC12LS||Reedy||KO Propo|
|1996||1||1:12 EP Track||California||Yokomo||Associated RC12LC||Reedy||KO Propo|
|1997||3||1:10 EP Off-road 2WD||Pomona||Associated RC10L||Yokomo||Reedy||KO Propo|
|1997||1||1:10 EP Off-road 2WD||Pomona||Yokomo||Yokomo||Reedy||KO Propo|
|1999||1||1:10 EP Off-road 2WD||Rauma||Yokomo||Associated RC10L||Reedy||KO Propo|
|1998||2||1:12 EP Track||Newcastle||Yokomo||Associated RC12L3||Reedy||KO Propo|
|2000||1||1:12 EP Track||Tsukuba||Yokomo||Associated RC12L3||Reedy||KO Propo|
|2000||1||1:10 PRO 10||Tsukuba||Yokomo||Yokomo||Reedy||KO Propo|
|2002||1||1:12 EP Track||Krugersdorp||Yokomo||Yokomo 12LY||Reedy||KO Propo|
|2004||1||1:12 EP Track||Florida||Yokomo||Associated RC12L4||Reedy||KO Propo|
JMRCA All-Japan Championship results
|1982||14||1:12 EP Racing|
|1983||3||1:12 EP Racing|
|1984||17||1:12 EP Racing|
|1985||2||1:12 EP Racing|
|1986||1||1:12 EP Racing||Komazawa Olympic Park|
|1987||1||1:12 EP Racing||Kawasaki Racecourse|
|1987||2[N 1]||1:10 EP Off-Road 2WD|
|1988||1:12 EP Racing|
|1989||1||1:12 EP Racing|
|1990||1||1:12 EP Racing||Yokota Hobby|
|1||1:12 EP Racing|
|1992||1||1:12 EP Racing||Yokota Hobby|
|1994||1||1:10 EP Off-Road 4WD||Yokomo||Yokomo||Nosram|
|2008||1||1:10 EP Off-Road 2WD||Yokomo||Yokomo||Nosram|
|2008||7||1:10 EP Off-Road 4WD||Yokomo||Yokomo||Nosram|
|2011||1||1:12 EP Racing||Yokomo||Yokomo||Nosram|
|2011||1||1:10 EP Touring Super Expert||Yokomo||Yokomo||Nosram|
|2011||1||1:10 EP Off-Road 2WD||Yokomo||Yokomo||Nosram|
|2011||1||1:10 EP Off-Road 4WD||Yokomo||Yokomo||Nosram|
|2012||1||1:10 EP Touring Super Expert||Yokomo||Yokomo||Yokomo|
|2012||1||1:10 EP Off-Road 2WD||Yokomo||Yokomo B-Max 2||Yokomo|
|2013||2||1:10 EP Off-Road 2WD||Yokomo||Yokomo B-Max 2 MR||Yokomo R-Series|
|2013||1||1:10 EP Off-Road 4WD||Yokomo||Yokomo||Yokomo|
|2014||1||1:10 EP Touring Super Expert||Yokomo||Yokomo||Yokomo|
|2014||1||1:10 EP Off-Road 2WD||Yokomo||Yokomo||Yokomo|
|1995||1||1:12 EP Racing|
|1996||1||1:12 EP Racing|
|1997||1||1:12 EP Racing|
|1998||1||1:12 EP Racing|
|1999||1||1:12 EP Racing|
|2004||1||1:12 EP Racing||Hakusan Arena|
|2005||1||1:12 EP Racing||Hakusan Arena||Yokomo||Yokomo|
|2006||3||1:10 EP Touring Open||Yokomo||Yokomo|
|2006||63||1:10 EP Off-Road 2WD||Yokomo||Yokomo|
|2006||11||1:10 EP Off-Road 4WD||Yokomo||Yokomo|
|2007||1||1:12 EP Racing||Yokomo||Associated||Nosram|
|2007||24||1:10 EP Touring Super Expert||Yokomo||Yokomo||Nosram|
|2007||5||1:10 EP Off-Road 2WD||Yokomo||Yokomo||Nosram|
|2007||1||1:10 EP Off-Road 4WD||Yokomo||Yokomo||Nosram|
|2008||1||1:12 EP Racing||Yokomo||Associated||Nosram|
|2008||1||1:10 EP Touring Super Expert||Yatabe Arena||Yokomo||Yokomo||Nosram|
- Won by invited driver Gil Losi, Jr. but awarded to Hirosaka per rules.
- informed from Masami Hirosaka himself, updated at July 24, 2011
- Bacon, Bill (April 1992), "Masami Hirosaka: The Master Speaks", Radio Controlled Car Action: 24–25
- Bacon, Bill (April 1992), "Masami Hirosaka: The Master Speaks", Radio Controlled Car Action: 26