5:05 Marathon Splits Calculator (KM)
Change the finish time or distance to generate pace + checkpoint splits. For a marathon goal of 5:05, the “Key Splits” section below shows the most useful checkpoints.
5:05 Marathon Pace Band (7:14/km)
Key checkpoints for an even-paced 5:05:00 marathon. (Also ≈ 11:38/mi.)
| Distance | Cumulative time |
|---|---|
| 5 km | 0:36:09 |
| 10 km | 1:12:17 |
| 15 km | 1:48:26 |
| 20 km | 2:24:34 |
| Half (21.1) | 2:32:30 |
| 25 km | 3:00:43 |
| 30 km | 3:36:51 |
| 35 km | 4:13:00 |
| 40 km | 4:49:08 |
| Finish (42.195) | 5:05:00 |
Cue: calm early → consistent fueling → protect pace 30–40 km → keep moving late.
Key Split Times for a 5:05 Marathon
These are the checkpoints most runners actually look at on race day.
0:36:09
1:12:17
2:32:30
3:36:51
4:49:08
5:05:00
Show full 1K cumulative splits (1–42km + finish)
Times are cumulative. Small second-by-second rounding is normal; your official time is what matters.
| Distance | Cumulative time |
|---|---|
| 1 km | 0:07:14 |
| 2 km | 0:14:27 |
| 3 km | 0:21:41 |
| 4 km | 0:28:55 |
| 5 km | 0:36:09 |
| 6 km | 0:43:22 |
| 7 km | 0:50:36 |
| 8 km | 0:57:50 |
| 9 km | 1:05:03 |
| 10 km | 1:12:17 |
| 11 km | 1:19:31 |
| 12 km | 1:26:44 |
| 13 km | 1:33:58 |
| 14 km | 1:41:12 |
| 15 km | 1:48:26 |
| 16 km | 1:55:39 |
| 17 km | 2:02:53 |
| 18 km | 2:10:07 |
| 19 km | 2:17:20 |
| 20 km | 2:24:34 |
| 21 km | 2:31:48 |
| 22 km | 2:39:01 |
| 23 km | 2:46:15 |
| 24 km | 2:53:29 |
| 25 km | 3:00:43 |
| 26 km | 3:07:56 |
| 27 km | 3:15:10 |
| 28 km | 3:22:24 |
| 29 km | 3:29:37 |
| 30 km | 3:36:51 |
| 31 km | 3:44:05 |
| 32 km | 3:51:18 |
| 33 km | 3:58:32 |
| 34 km | 4:05:46 |
| 35 km | 4:13:00 |
| 36 km | 4:20:13 |
| 37 km | 4:27:27 |
| 38 km | 4:34:41 |
| 39 km | 4:41:54 |
| 40 km | 4:49:08 |
| 41 km | 4:56:22 |
| 42 km | 5:03:35 |
| Finish (42.195) | 5:05:00 |
Who 5:05 pace suits
- Runners aiming for a steady finish where consistency beats speed swings.
- Anyone using a planned run/walk approach (when practised, it’s very effective here).
- Runners who want simple checkpoints (10k / half / 30k / 40k) and a clear fueling rhythm.
Common mistakes at 5:05 pace
- Banking time early: it usually turns into long walk breaks after 30 km.
- Skipping fuel because it feels easy: the bill comes due late.
- Full stops at aid stations: repeated stops add minutes and break rhythm.
- Overreacting to a bad km: fix it gradually over the next 2 km.
Pace conversions for 5:05
Quick reference for track sessions and race-day math.
Note: GPS and course factors can add noise. Use this as a guide, not a guarantee.
Aid station + fueling plan for 5:05
Small, consistent inputs beat big stops. Plan ahead so stations don’t wreck your rhythm.
- Before the station: decide what you’re taking and move early.
- At the station: sip while moving (short walk is fine), then resume smoothly.
- Make it repeatable: do the same thing every time so it’s automatic.
- Fuel timing: Gel every ~30–35 minutes with water if possible.
A 15s pause at 8 stations is ~2 minutes—plus the cost of re-accelerating. Keep it intentional.
Pacing Plan + Printable Pace Band
Think of this as your “simple race plan” for 5:05. If conditions are hot/windy/hilly, don’t force the pace early.
Even pacing targets (use whichever you prefer)
2:53
5:47
7:14
11:38
Mini-plan by race phase
- 0–5 km: Relax. Don’t “win” the early kilometres.
- 5–30 km: Lock into 7:14/km. Fuel early and keep stops short.
- 30–40 km: Steady effort: shorten stride slightly, keep cadence ticking.
- 40–42.2 km: If you can run, run—even small jogs save big time.
Fueling + Hydration (simple 5:05 template)
For 5:05, you’ll be on course long enough that steady fueling + manageable breaks can beat a “run hard then fade” approach.
- Carbs: target ~35–55 g/hour (choose what your gut tolerates).
- Simple schedule: start at ~45 minutes, then every 45 minutes (≈ 4–5 gels), or swap 1–2 gels for sports drink.
- Run/walk: if you plan to walk stations, do it consistently (10–20 sec), not randomly.
- Fluids: drink early in heat; thirst can lag by 30–60 minutes.
Big win: avoid long stops—short, planned breaks keep your overall time on target.
Training tie-in (what supports a 5:05:00 marathon)
These are general training patterns that often support a 5:05:00 goal. Use effort and recovery as the primary guide.
Typical weekly structure
- Volume: 35–70 km/week (typical) (individual needs vary)
- Long run: 2:00–2:45 (avoid turning every long run into a very long grind)
- 1 quality session: threshold or hills (keep it controlled)
- 1 marathon-specific session: marathon-pace / steady segments
- Easy runs: often around 8:19–9:14/km (roughly +65–120 sec/km slower than goal pace)
Example key workout
One marathon-specific option: 2 × 20 min steady (around goal pace to +20 sec/km), with 8–10 min easy between. Keep the first rep smooth, and stop early if form breaks.
Simple pacing anchors
7:14/km
11:38/mi
7:34–7:54/km
8:19–9:14/km
Race Week Checklist (quick)
- Keep running, just reduce volume. Short easy runs help you feel fresh.
- Practice your race-day breakfast at least once before the event.
- Lay out shoes/socks/gels the night before. Don’t change anything last minute.
- Write down 3 cues for 32–40 km (e.g., “tall posture”, “quick feet”, “small steps”).
Pace chart (quick reference)
A small table of common distances at 7:14/km.
| Distance | Time |
|---|---|
| 1 km | 0:07:14 |
| 2 km | 0:14:27 |
| 3 km | 0:21:41 |
| 5 km | 0:36:09 |
| 10 km | 1:12:17 |
| Half (21.1) | 2:32:30 |
| 30 km | 3:36:51 |
| 40 km | 4:49:08 |
5:05 Marathon Pacing FAQ
What pace per km is a 5:05 marathon?
A 5:05:00 marathon averages about 7:14 per km.
Is walking aid stations 'allowed'?
Absolutely. A short, planned walk (10–20 seconds) can improve drinking and keep you more consistent overall.
What’s the biggest mistake at 5:05?
Treating early effort as “free” and skipping fueling. The final 12 km is where consistent carbs pay off.
How should I pace the first 10 km?
Conservative. Settle into rhythm, then protect that rhythm—avoid surges that feel fine now but cost later.
How do I keep morale up late?
Break the last 12 km into 3 x 4 km chunks and focus on one simple cue (relax shoulders, quick steps, next station).