Skip to main content

My Training for 1:00:44


Hi, I'm Ayumu Kobayashi. Today I'm going to write about this year's National Corporate Half Marathon and the training I did for it. I hope other runners will find it even a little bit helpful. At the Corporate Half on Feb. 13 I was 10th in 1:00:44. My goal had been to run 61 minutes, so I hit that target.

My Training Menu

In January I ran a total of 681 km. Key workouts:
  • Jan. 11: 1000 m x 5 at 2:50/km
  • Jan. 12: 22.5 km
  • Jan. 15: 9 km variable pace
  • Jan. 17: 25 km
  • Jan. 24: 1000 m x 8 at 2:52/km
  • Jan. 27: 1 km + 4 km + 2 km
  • Jan. 30: 16 km at 3:18/km avg.
In January I was tired from the New Year Ekiden and had some knee pain after it, so I just jogged for 10 days until I started doing workouts again on the 11th. That's why I only ran 681 km for the month. But even on the jog days I was aware that I had the Corporate Half coming up, so I was doing around 30 km. It's pretty meat and potatoes, but I think it was really important.

February (training for the 10 days before the race)
  • Feb. 2: 11.7 km jog in 52 min, plus 5000 m x 2 in 14:34 / 14:31
  • Feb. 3: 22 km jog in 98 min
  • Feb. 4: 14 km jog in 67 min, plus 13.2 km jog in 66 min
  • Feb. 5: 11 km jog in 51 min, plus 12000 m in 38:49, 3:14/km avg.
  • Feb. 6: 16 km jog in 73 min
  • Feb. 7: 14.1 km jog in 68 min, plus 14 km jog in 67 min
  • Feb. 8: 18 km jog in 82 min
  • Feb. 9: 10 km jog in 47 min, plus 5000 m in 14:26
  • Feb. 10: 14.3 km jog in 67 min
  • Feb. 11: 10.5 km jog in 50 min, plus 10 km jog in 45 min
  • Feb. 12: 10 km jog in 46 min
  • Feb. 13: 4.3 km jog in 20 min, plus National Corporate Half in 1:00:44
Starting in the second half of January, I incorporate long intervals into my training specifically to build speed endurance. The Feb. 2 workout with 5000 m x2 around 14:30 felt easy, so I felt like I could go around 1:01:00. The pace in the jogs was mostly around 4:30~4:40/km. The focus there was doing them comfortably while concentrating on my form. I didn't think about the pace at all.

I think the most important thing in the final lead-up to the race is staying fresh, so the training load in the week before it was fairly light. That's really the only point where I was thinking in terms of tapering. I think not doing enough is better than overdoing it, so please look at my training plan in those terms. Most of this training was planned and done by myself and has nothing to do with what the rest of the team was doing.

About the race

In the Corporate Half I went through 15 km in 43:15 feeling easy, but it suddenly got harder at 16 km. I hung on and held 2:53~54/km from there to finish. The other people up front still seemed to be running easily after 15 km, so I felt like there was a pretty big difference from how much I still had left in me. I'm good at hanging on when it gets hard, but I understood that if I want to be able to be more competitive in the future then I need to be able to increase my ability to maintain comfort at speed.

In short, that's what I have to say about my prep for this half. I hope you find it useful. Thanks for reading.

source article:
translated by Brett Larner

Buy Me A Coffee

Comments

MICHAEL RIMICANS said…
Interesting account of your training, all the best for your next race!
PSousa said…
I love this articles! This and the other "On making a National Record" are awesome! Thanks so much for your blog!
Regards from Portugal!

Paulo Sousa

Most-Read This Week

'CAS Clears Japan’s Olympic Silver Medallist Ikeda of Doping, Overturns Ban'

https://www.aljazeera.com/sports/2026/10/23/cas-clears-japans-olympic-silver-medallist-ikeda-of-doping-overturns-ban The AIU's missteps in this case cost Tokyo Olympics and Oregon World Championships 20 km race walk silver medalist Koki Ikeda , a Toyo University graduate who competes for the Asahi Kasei corporate team, the chance to represent Japan at a home soil World Championships last year. It is almost unheard of for an athlete to successfully fight a biological passport suspension as Ikeda did, making this a highly significant case. The CAS' press release about its decision stated: "The Panel stressed that the Athlete did not merely assert his position on the ABP abnormalities but adduced very extensive evidence in support of his explanations. In this highly complex case, the evidence brought during the CAS proceedings was far more abundant and specific than during the first instance proceedings with the WA Disciplinary Tribunal, implying the CAS Panel had further ...

Meijo Back With Morinomiyako Ekiden CR for National University Title

The last big dynasty school in Japanese women's distance running with 7-straight wins at October's Morinomiyako Ekiden from 2017 to 2023 and 6-straight titles at the season-ending Mt. Fuji Women's Ekiden from 2018 to 2023, Meijo University came back from a 3rd-place finish last year to win the 44th Morinomiyako Ekiden again, leading almost start-to-finish to set a 2:02:21 CR for the 6-stage, 38.0 km course in Sendai. 12 second back in 2nd after the opening leg, collegiate 3000 mSC champ Nozomi Kondo put Meijo out front with a 12:36 CR for the 4.0 km Second Stage, and the rest of the team never looked back. The biggest threat to a Meijo win was on the 9.2 m Fifth Stage, where this year's collegiate 10000 m winner Sarah Wanjiru from last year's runner-up Daito Bunka University started 50 seconds back from Meijo 1st-year Mao Kimura . In taking the 10000 m title Wanjiru had outrun Kimura by over a minute, but today Kimura was a revelation, strong and smooth out fr...

Waseda Leads Top 7 Teams Under Izumo Ekiden CR, Ivy League Best-Ever 3rd (updated)

3rd last year, Waseda University scored its first Izumo Ekiden win since 2010, taking almost 2 minutes off the CR and leading the top 7 teams under the old record of 2:07:51 for the complete 6-stage, 45.1 km course. Waseda was 16 seconds back in 7th after the First Stage, but its 2nd runner Ojiro Honda made that up easily and put them 6 seconds out front. A massive 22:56 CR for the 8.5 km Third Stage by Shadrack Kipkemei (Nihon Univ.) dropped Waseda back to 2nd even though its runner Ryuki Suzuki broke the old CR too, but back-to-back CR on the next 2 stages by 1st-year Haruki Niizuma and Shunpei Yamaguchi put anchor Shinsaku Kudo out of reach of the rest of the field. Kudo duly won the 10.2 km anchor stage in 29:00, bypassing a 2:06 time entirely for a new 2:05:56 CR, just under 2:48/km average pace for the complete course. Defending champ Koku Gakuin University struggled a bit in the first half of the race but came on strong in the longer second half with 4th and 5th runners...