Top post. Good to see it around all the hot air lately. Nicely structured and formatted, should be the standard I think maybe for testimonials? Will add my thoughts for what it's worth. Full time dad, ran fast short stuff in my younger days, got into distance running on a corporate event a number of years ago now.
My Background:
Running since 2019, I hit a wall with Pfitzinger plans M plans. Not stuck, but plateaued, disillusioned, and fed up with running. Found Sirpoc’s NSM posts here and started the classic method in mid-2024. My 10K PB dropped from 39:18 to 36:16 in 8 months. When I saw Sirpoc building for his 2:24 London Marathon, I followed his marathon Special Block, about 7 weeks behind, trusting his track record, he doesn’t miss, right?
NSM and Special Block:
I followed classic NSM with three sub-threshold sessions (one extended: 3x16-17 mins, progressing to 4x, then 5x near the end, all below LT2), two other classic NSM workouts weekly, a gradually increasing long run (capped at 2:40, time-based), and the occasional midweek long run. Peaked at a 7-hour 49 week, all singles, per Sirpoc’s approach. Compared to Pfitz or Daniels 2Q, it felt shockingly easy—no burnout, just sustainable gains. The Special Block, started 3 weeks out, was tougher but manageable. The 10K and HM tune-ups were huge confidence boosters; the HM (1:18:33 PB, 3 weeks out) was a game-changer.
Marathon Result:
My previous marathons were rough, 3:05 PB, a brutal 3:16 on Pfitz where I barely finished. With NSM and the Special Block, I ran a 2:48 on a hot day, a massive PB. The super-short taper was a mental shift, but it worked. Felt strong, no fatigue, and executed well despite the heat keeping me from sub-2:45. With others struggling, it’s a big win. The whole thing is certainly unconventional, not just the taper was a little strange in comparison, not running virtually any marathon pace is really going to throw or put a lot of people off. But who cares if it gets the job done?
On “Missing Gear” and FT Runners:
As a fast-twitch former 200-400m runner, I get that “missing top-end” feeling. NSM’s aerobic focus feels flat for speed, but it’s a strength for FT runner, it builds our weak aerobic base while keeping enough zip for race day. I didn’t add speedwork, and my times still dropped. Don’t buy the “NSM isn’t for FT guys” talk. It’s more effective because it balances us out and actually focuses a lot on our weaknesses and stuff we try and avoid doing, because initially we suck at it.
Special Block Transition and Advice:
Your NSM base is perfect for the Special Block. Keep the classic structure (sub-threshold sessions, one extended, plus long run and occasional MLR) until the Special Block 3 weeks out. Stick to Sirpoc’s plan and don’t tweak it. The method’s finely balanced, and what you think you want doesn’t matter if you buy into it. Trust the tune ups and short taper: my 2:48 off a 1:18 HM shows it works, even in tough conditions. For me it was an absolutely huge shift to the next level up in my running.