Race Information
Race Name: TCS Amsterdam Marathon
Date: 18-10-26
Distance: Marathon
Location: Amsterdam
Finish Time: 03:05:0X
Hi everyone, today I ran my second marathon. I found reading other race reports really helpful during my marathon training block, so I thought it was only fair to post one myself. I’ve kept it fairly straight to the point, but I’m happy to answer any questions if you’d like to know more or if I’ve left out any important details.
Goals
Goal Description Completed?
A Sub 3 No
B Sub 3:10 Yes
C Steady pace Yes
Splits
4:24 flat for the entire race!
Pre training block stats
25, male, 190cm, 80kg
17:15 for 5K, 37:14 for 10K, 1:01:12 for 10miles; 1:22 for the half marathon, 3:24 (first and only marathon, in 2024).
Average weekly mileage 35km (consistent for years)
Training
As you can see from the mileage progression in the screenshot, I was pretty naive and made a few mistakes in how I built up my mileage.
Since I PR’d on the 10k and 10miles, I wanted to give sub-3 a shot. I still had 8 weeks left so I increased my weekly mileage as quickly as possible. I therefore increased it aggressively in an attempt to reach the appropriate peak weeks. As you can probably guess, this resulted in injuries: shin splints and cuboid syndrome.
I then reduced my mileage again to recover, with my highest priority being to make it to the start line pain-free and still getting some 30k+ runs in. That worked, and my total marathon block average ended up being 47 km per week.
Training stats:
Peak: 85km; Average: 47km; Longest run 35km with last 5km sub-3 MP
+- 3x 30+ runs.
Crosstraining: Gym 2x (final 8 weeks no legs) ; cycling 2 hours/week
Pre-Race
+-3400 calories / day during the block (190cm, 80kg, male) went from 80kg to 78,5kg during training block.
I did a 2 week taper (35k and 15k) and carb-loaded for 3 days
The conditions were (course record) good: 14°C, minimal rain, and a flat fast course.
No injuries, legs felt fresh and sharp
Race plan
Figured the amount of mileage would not have been enough for sub-3, so my new goal was 3:07. (Still a big PR). The plan was to run at a steady 4.25/km pace.
Race
It was pretty rainy, and I forgot to bring a poncho (a tip for anyone running on a rainy day!). But my legs felt good, and we started in the beautiful Olympic Stadium. I started a couple of rows behind the sub-3 pacers.
The first 30K felt completely effortless. My average heart rate for the entire race was 160 bpm, and it stayed steady at 155 bpm until 30K. Over the final 12K, my legs started to hurt a bit, but I managed to maintain consistent splits, and I wasn’t even close to cramping. As the finish line approached, I couldn’t resist giving it everything I had over the final kilometer.
For nutrition, I took a 30g Decathlon gel every 5K (which I had also practiced during training) and grabbed a cup of water at every aid station. On top of that, family and friends were waiting for me at three different spots with electrolyte drinks.
The race went exactly according to plan. For roughly the first three-quarters of the race, I was mostly being overtaken by other runners. Luckily, I stayed patient, because I was able to make up a massive amount of ground in the final quarter. I was surprised by how many people slowed down towards the end.
Post-Race
I’m very happy with the result, and because my legs felt good, I think there may be even more in the tank (not today tho). If I run another marathon, I’ll obviously build up my mileage more gradually next time. I think I’d use an app such as Runna or Ren to follow a structured plan. But for now, I’m going to focus on getting stronger in the gym again and keep my running at maintenance during the winter.