PR Long Run Treadmill Workout!!
>> Thursday, January 08, 2026
After Friday's treadmill 5K PR workout where I ran 17:04, I started a long run on the treadmill on Monday with high hopes. I posted about some faster treadmill workouts throughout December last week, with the best one having my 6 faster miles in the middle done in 35:43 (5:57.17 pace).
I had the same plan for those "pace miles" for this week's run, but I was planning on speeding up a bit sooner. I speed up 0.1 mph every half mile, but I want to be able to take my splits every half mile... so I usually speed up on the 0.4s and 0.9s instead of the 0.5s and the 1.0s so that I'm not trying to speed up and take a split on my Garmin at the same time. But this time I was going to speed up on the 0.3s and 0.8s. So that ends up being 1.2 miles done 0.1 mph faster than last week. That sounds like it could be a lot, but it's really only the difference of a few seconds over those 6 miles. I was going for a PR on this long run.
I warmed up for 2.5 miles, then started the "pace miles" at 9.4 mph, speeding up 0.1 mph every half mile (at mile 2.8, mile 3.3, mile 3.8, etc.). I also sped up an EXTRA 0.1 mph within the pace miles at 4 different spots: at miles 1, 3, 5, and 5.5 miles to end at 10.9 mph. Here were my splits:
3:11, 3:09, 3:04, 3:02, 3:01, 2:59, 2:55, 2:54, 2:52, 2:51, 2:47, 2:45
= 35:34.9 (5:55.82/mile!)
That was about 8 seconds faster than the week before (that's the tiny difference that going 0.1 mph faster for 1.2 miles creates, along with speeding up 1 extra time near the end), and about 3 seconds faster that my PR for this workout which came about 11 months ago!
Hopped off for 90 secs in my cooldown to make sure the boys were getting ready for school. :)

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