On Osako in Boston – by Brett Larner – Japan Running News

U.S.-based for the last few years as part of the Nike Oregon Project, Suguru Osako makes his marathon debut at tomorrow's Boston Marathon.  

It's had the Japanese media and other critics clucking that the choice of Boston "goes against the conventional wisdom of Japanese long distance" and that Boston's one-way, net downhill course means that he's more likely to run a fast time but that it "won't count."  The idea that Boston is a waste of time for Japanese runners because it's not record-elligible is a relatively recent one.  

There's a pretty good argument to be made that the era of Japan's greatest strength as a marathon power lined up reasonably well with when the best Japanese marathoners were regularly in Boston and winning or placing, that once the powers that be decided Boston was off-limits to the best due to the risk of "wasting" a good one on a record-inelligible course Japanese marathoners stopped being competitive racers internationally as a whole.  Correlation, not causation, but it's hard to deny the history.

Osako being in the U.S. means he has other voices whispering in his ear, one of them a past Boston winner, so it's not that surprising to see him pick the United States' premier marathon for his debut.  He's got a solid cross country background, always a plus on the Boston course, going back all the way to his days at Saku Chosei H.S. under progressive head coach Hayashi Morozumi, and showed potential for longer distances with an Asian junior half marathon area record 1:01:47 win at the Ageo City Half Marathon his first year at Waseda University and some brilliant runs at the Hakone Ekiden in the next few years after that. A 1:01:13 PB at February's Marugame Half Marathon, his first half since his 2010 Ageo win, was encouraging.  

How could he do in Boston?  It's tempting to read his last pre-Boston race, a 1:04:12 win at an amateur-level half marathon mid-March, as a marathon pace run, but looking again toward history, this is how the top ten Japanese performances in Boston and top ten Japanese marathon debuts line up:

All-time Japanese Boston Marathon Top Ten

1. 2:09:27 – Toshihiko Seko, 1st, 1981
2. 2:10:13 – Toshihiko Seko, 2nd, 1979
3. 2:11:02 – Hiromi Taniguchi, 4th, 1993
4. 2:11:32 – Kenjiro Jitsui, 6th, 2006
5. 2:11:50 – Toshihiko Seko, 1st, 1987
6. 2:13:15 – Takayuki Inubushi, 10th, 1998
7. 2:13:40 – Tomoyuki Taniguchi, 5th, 1987
8. 2:13:49 – Yoshiaki Unetani, 1st, 1969
9. 2:13:55 – Akinori Kuramata, 11th, 1998
10. 2:14:10 – Futoshi Shinohara, 9th, 1990