Japan's Kazuhiro Koshi reacts after his final heat in the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia February 19, 2010. REUTERS/Jim Young (CANADA) 

Japan's Kazuhiro Koshi starts his third heat in the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 19, 2010. REUTERS/Jim Young (CANADA) 

Japan's Kazuhiro Koshi finishes his third heat in the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 19, 2010. REUTERS/Tony Gentile (CANADA) 

Japan's Kazuhiro Koshi starts his first heat in the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia February 18, 2010. REUTERS/Tony Gentile (CANADA) 

Japan's Kazuhiro Koshi starts his first heat in the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia February 18, 2010. REUTERS/Tony Gentile (CANADA) 

Japan's Kazuhiro Koshi waits to start his first heat in the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia February 18, 2010. REUTERS/Tony Gentile (CANADA) 

Japan's Kazuhiro Koshi starts during a practice run in the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia February 17, 2010. REUTERS/Jim Young (CANADA) 

Japan's Kazuhiro Koshi speeds down the track during a training heat for the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 15, 2010. REUTERS/Tony Gentile (CANADA) 

Japan's Kazuhiro Koshi starts a training heat for the men's skeleton event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 15, 2010. REUTERS/Tony Gentile (CANADA) 

Kazuhiro Koshi of Japan starts on the natural ice track during the Bobsleigh and Skeleton World Cup tournament in the Swiss mountain resort of St. Moritz January 15, 2010. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT SKELETON HEADSHOT) 

Kazuhiro Koshi of Japan starts on the natural ice track during the Bobsleigh and Skeleton World Cup tournament in the Swiss mountain resort of St. Moritz January 15, 2010. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT SKELETON) 

Japan's Kazuhiro Koshi competes in the men's skeleton race during the FIBT Bobsleigh and Skeleton World Cup competition at the Olympic track in Cesana Pariol, northern Italy, December 4, 2009. REUTERS/Giampiero Sposito (ITALY SPORT SKIING) 

Japan's Kazuhiro Koshi competes in the men's skeleton race during the FIBT Bobsleigh and Skeleton World Cup competition at the Olympic track in Cesana Pariol, northern Italy, December 4, 2009. REUTERS/Giampiero Sposito (ITALY SPORT SKIING) 

Kazuhiro Koshi of Japan competes in the second heat of the men's race at the FIBT World Skeleton Championships in Lake Placid, New York, February 27, 2009. REUTERS/Shaun Best (UNITED STATES) 

Kazuhiro Koshi of Japan starts during training at men's Skeleton World Cup tournament in St Moritz January 22, 2008. REUTERS/Arnd Wiegmann (SWITZERLAND) 

Japan's Kazuhiro Koshi competes in the men's skeleton world cup tour at the Olympic track in Cesana Pariol, northern Italy, January 17, 2008. REUTERS/Max Rossi (ITALY) 

RNPS IMAGES OF THE YEAR 2007 - Japan's Kazuhiro Koshi crosses the finish line during the men's skeleton world cup tour at the Olympic track in Cesana Pariol, northern Italy, February 9, 2007. REUTERS/Max Rossi (ITALY) 

Japan's Kazuhiro Koshi crosses the finish line during the men skeleton world cup tour at the Olympic track in Cesana Pariol, northern Italy, February 9, 2007. REUTERS/Max Rossi (ITALY) BEST QUALITY AVAILABLE 

Japan's Kazuhiro Koshi crosses the finish line during the men skeleton world cup tour at the Olympic track in Cesana Pariol, northern Italy, February 9, 2007. REUTERS/Max Rossi (ITALY)
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Sixth placed Kazuhiro Koshi of Japan speeds down the track during his first run at the FIBT Skeleton World Cup competition at the Olympia Bob Run in Sankt Moritz, Switzerland, January 19, 2006. Jeff Pain of Canada won the competition in a total time of two minutes 18.01 seconds ahead of Switzerland's Gregor Staehli and third placed Frank Rommel of Germany. REUTERS/Pascal Lauener 

Kazuhiro Koshi of Japan practices for the men's skeleton event during
official training at the Salt Lake 2002 Winter Olympic Games in Park
City February 19, 2002. REUTERS/Dan Chung

KM/CRB