29 percent
of finishes in an average year had a sustained slowdown
Edition by edition, between 20% (2026) and 38% (2017).
Every median finish fell between 3:54 and 3:58.
The biggest climb is 0–5K: 147 ft.
- Whole route
- Climbs 635 ft, descends 597 ft
Fewer early drifters here: 6%, against 14% elsewhere.
Oslo’s 29%: lower than 14 of 22 other courses with three or more editions.
Of Oslo finishes on 4:00 pace through 20K, 19% made 4:00, against 14% elsewhere.
All numbers5 tables
| Finishes | 22,334 |
|---|---|
| Editions | 8 |
| Median finish, average edition | 3:56:12 |
| Sustained slowdown, average edition | 28.6% |
| Second 20K more than 10% slower | 36.2% |
| Median time given back after 20K | +9:22 |
| Climb, whole route | 635 ft |
| Year | Race date | Finishes | Median finish | Sustained slowdown | At the start | Dew point | Humidity | Wind | Start time |
|---|---|---|---|---|---|---|---|---|---|
| 2016 | Sep 17 | 2,384 | 3:56:28 | 29.5% | 59°F | 52°F | 78% | 5.0 mph | 10:00 |
| 2017 | Sep 16 | 1,975 | 3:54:06 | 38.1% | 54°F | 45°F | 72% | 3.2 mph | 10:00 |
| 2018 | Sep 15 | 2,204 | 3:56:34 | 33.9% | 52°F | 41°F | 66% | 6.2 mph | 10:00 |
| 2022 | Sep 17 | 1,788 | 3:55:48 | 28.9% | 55°F | 41°F | 59% | 6.4 mph | 10:00 |
| 2023 | Sep 16 | 2,490 | 3:57:16 | 29.7% | 58°F | 54°F | 86% | 10.0 mph | 10:00 |
| 2024 | Sep 21 | 3,958 | 3:54:49 | 22.9% | 54°F | 53°F | 97% | 3.7 mph | 10:00 |
| 2025 | Sep 20 | 4,112 | 3:57:48 | 26.5% | 58°F | 56°F | 91% | 6.0 mph | 10:00 |
| 2026 | Sep 12 | 3,423 | 3:56:46 | 19.7% | 53°F | 53°F | 100% | 1.9 mph | 09:00 |
| Section | Climb | Descent | Net | Pace vs. avg. |
|---|---|---|---|---|
| 0–5K | 147 ft | 14 ft | +129 ft | −2.0% |
| 5–10K | 13 ft | 182 ft | −170 ft | −6.4% |
| 10–15K | 73 ft | 19 ft | +53 ft | −4.0% |
| 15–20K | 87 ft | 66 ft | +20 ft | −2.8% |
| 20–25K | 73 ft | 39 ft | +30 ft | −1.7% |
| 25–30K | 79 ft | 157 ft | −82 ft | −0.1% |
| 30–35K | 35 ft | 43 ft | −18 ft | +3.3% |
| 35–40K | 129 ft | 18 ft | +119 ft | +9.0% |
| 40K–finish | 0 ft | 58 ft | −60 ft | +5.7% |
| Goal | Finishes | Made the goal | Sustained slowdown | Given back after 20K | Median finish | 10th–90th percentile |
|---|---|---|---|---|---|---|
| 3:00 | 1,040 | 19.0% | 22.8% | +6:27 | 3:06:34 | 2:59:09–3:18:09 |
| 3:30 | 2,230 | 17.3% | 28.4% | +8:38 | 3:38:44 | 3:28:50–3:54:42 |
| 4:00 | 2,482 | 18.6% | 33.9% | +11:18 | 4:11:36 | 3:57:55–4:33:31 |
| 4:30 | 1,196 | 15.9% | 34.4% | +15:16 | 4:44:54 | 4:27:39–5:09:20 |
| 5:00 | 379 | 12.7% | 35.8% | +21:04 | 5:18:50 | 4:57:19–5:41:22 |
| Pacing type | Oslo | Other courses |
|---|---|---|
| Metronome | 32% | 28% |
| Gentle fader | 35% | 30% |
| Late fader | 19% | 16% |
| Early drifter | 6% | 14% |
| Cliff | 3% | 4% |
| Fast-start fader | 5% | 8% |