Toshihiko Seko
Marathons

Year
Competition
Venue
Position
Event
Notes
1978
Fukuoka Marathon
Fukuoka, Japan
1st
Marathon
2:10:21
1979
Fukuoka Marathon
Fukuoka, Japan
1st
Marathon
2:10:35
1979
Boston Marathon
Boston, United States
2nd
Marathon
2:10:12
1980
Fukuoka Marathon
Fukuoka, Japan
1st
Marathon
2:09:45
1981
Boston Marathon
Boston, United States
1st
Marathon
2:09:26
1983
Tokyo Marathon
Tokyo, Japan
1st
Marathon
2:08:38
1983
Fukuoka Marathon
Fukuoka, Japan
1st
Marathon
2:08:52
1986
London Marathon
London, United Kingdom
1st
Marathon
2:10:02
1986
Chicago Marathon
Chicago, United States
1st
Marathon
2:08:27
1987
Boston Marathon
Boston, United States
1st
Marathon
2:11:50
1988
Lake Biwa Marathon
Ōtsu, Japan
1st
Marathon
2:12:41

Question: What are the marathon wins of Seko?
Answer: Seko's marathon wins include Fukuoka Marathon (1978–1980, 1983), Boston Marathon (1981, 1987), London Marathon (1986) and Chicago Marathon (1986).