Kosa 10 mile

Kosa JPN

Race Winners (25 runnings)

09 Dec 2007

45:24

John Kariuki (KEN)

10 Dec 2006

45:01

Martin Irungu-3

11 Dec 2005

45:10

Samuel Wanjiru (KEN)

12 Dec 2004

44:51

Martin Irungu-2

14 Dec 2003

45:30

Martin Irungu (KEN)

08 Dec 2002

45:20

Julius Maina (KEN)

09 Dec 2001

45:29

Simon Maina (KEN)

10 Dec 2000

46:44

Solomon Wachira (KEN)

12 Dec 1999

46:02

Tadayuki Ojima (JPN)

13 Dec 1998

46:22

Jeff Schiebler (CAN)

14 Dec 1997

45:55

Kenichi Takahashi (JPN)

08 Dec 1996

45:52

Shinji Kawashima (JPN)

10 Dec 1995

46:20

Nobuyuki Sato (JPN)

11 Dec 1994

46:50

Kenji Takao (JPN)

12 Dec 1993

46:17

Stephen Mayaka (KEN)

13 Dec 1992

46:34

Nozomi Saho (JPN)

08 Dec 1991

46:35

Shuichi Yoneshige (JPN)

09 Dec 1990

46:24

Thomas Osano (JPN)

10 Dec 1989

46:34

Koichi Morishita (JPN)

11 Dec 1988

46:51

Naoki Maeda (JPN)

13 Dec 1987

47:27

Tadayoshi Kametaka (JPN)

14 Dec 1986

48:11

Yoshikazu Yamabe (JPN)

08 Dec 1985

48:21

Shigeru Kubota-2

1984

---

n/a

11 Dec 1983

48:55

Shigeru Kubota (JPN)
Notes: 1983 is believed to have been the inaugural year. For 2005 to date, the international runners have been given a headstart of roughly one minute, essentially making this two races. The "winner" listed is the one with the fastest time which is generally from the international race.


Most Wins (1983/date)

Men

3

Martin Irungu (KEN) 2003-04,2006


Prize Money
Prize money cannot be awarded in Japanese road races due to legal restrictions.


Race Time Bias (sec/km)

Year     Men
2007    -3.1
2006    -2.8
2005    -3.3
2004    -2.9
2003    -2.5
2002    -3.0
2001    -4.6
2000    -1.7
1999    -4.9
1998    -2.9
1997    -4.1
1996    -5.0
1995    -4.3
1994    -3.6
1993    -2.3
1992    -2.9
1991    -2.6
1990    -3.6
Avg     -3.2

Note: The race time bias is for "domestic" race.


Competitive Level (1990-date)

Year     Men
2007     637
2006     653
2005     463
2004     735
2003     623
2002     671
2001     716
2000     513
1999     510
1998     507
1997     492

Note: The competitive level for 2005 reflects the "domestic" race which was started one minute following the "international" race.

Quality Performances

Men
<45:00       1
<45:20       3
<45:40       7
<46:00      16
<46:20      34
<46:40      74
<47:00     135
<47:20     227
<47:40     330
<48:00     446
<48:20     551
<48:40     601
<49:00     658
<49:20     689
<49:40     704

Last Updated on 10 Dec 2007

Contributor: Shigenobu Ota (50)