Detroit Free Press Marathon 3:30 pace chart
A 3:30:00 finish at the Detroit Free Press Marathon averages 8:01 per mile (4:59 per kilometre) — a fast recreational time, roughly the top quintile of a big-city field. Run at even effort rather than even pace, the easiest mile comes in around 7:24/mi and the hardest around 12:56/mi — about 332 seconds between the two extremes. Holding an identical number on every mile of a course with this profile means running the climbs too hard and the descents too easy. Held at even effort, halfway comes up at 1:48:58 — a 7:56 negative split, because the harder half comes first. The hardest mile on the course sits near kilometre 12; at this goal time it should take 9:16/mi, and giving it that time is the difference between finishing Detroit on plan and unravelling in the last hour.
Mile-by-mile targets for 3:30:00
Grade-adjusted splits computed from the Detroit Free Press Marathon elevation profile with the Minetti gradient-cost model, scaled so the full course adds up to 3:30:00. Uphill sections get more time, downhills less, at one constant effort throughout.
| Mile | Target /mi | Target /km | Elev Δ | Elapsed |
|---|---|---|---|---|
| 1 | 7:37 | 4:44 | -12 ft (-4 m) | 7:37 |
| 2 | 7:44 | 4:48 | +2 ft (+1 m) | 15:21 |
| 3 | 7:40 | 4:46 | -7 ft (-2 m) | 23:01 |
| 4 | 8:45 | 5:26 | -585 ft (-178 m) | 31:46 |
| 5 | 7:43 | 4:48 | 0 ft (0 m) | 39:29 |
| 6 | 7:43 | 4:48 | 0 ft (0 m) | 47:12 |
| 7 | 7:43 | 4:48 | 0 ft (0 m) | 54:54 |
| 8 | 9:16 | 5:45 | +89 ft (+27 m) | 1:04:10 |
| 9 | 12:56 | 8:02 | +506 ft (+154 m) | 1:17:06 |
| 10 | 7:49 | 4:51 | +11 ft (+3 m) | 1:24:55 |
| 11 | 7:47 | 4:50 | +8 ft (+3 m) | 1:32:42 |
| 12 | 7:46 | 4:49 | +6 ft (+2 m) | 1:40:27 |
| 13 | 7:39 | 4:45 | -7 ft (-2 m) | 1:48:07 |
| 14 | 7:47 | 4:50 | +10 ft (+3 m) | 1:55:54 |
| 15 | 7:41 | 4:47 | -4 ft (-1 m) | 2:03:35 |
| 16 | 7:39 | 4:45 | -7 ft (-2 m) | 2:11:15 |
| 17 | 7:48 | 4:51 | +10 ft (+3 m) | 2:19:03 |
| 18 | 7:45 | 4:49 | +5 ft (+2 m) | 2:26:48 |
| 19 | 7:24 | 4:36 | -41 ft (-13 m) | 2:34:12 |
| 20 | 7:49 | 4:51 | +12 ft (+4 m) | 2:42:01 |
| 21 | 7:43 | 4:48 | +1 ft (0 m) | 2:49:44 |
| 22 | 7:45 | 4:49 | +5 ft (+1 m) | 2:57:29 |
| 23 | 7:42 | 4:47 | -3 ft (-1 m) | 3:05:11 |
| 24 | 7:42 | 4:47 | -2 ft (-1 m) | 3:12:52 |
| 25 | 7:43 | 4:48 | +1 ft (0 m) | 3:20:36 |
| 26 | 7:41 | 4:47 | -3 ft (-1 m) | 3:28:17 |
| 26.2 | 7:49 | 4:52 | +3 ft (+1 m) | 3:30:00 |
Frequently asked questions
What pace is a 3:30 marathon?
A 3:30:00 marathon is 8:01 per mile or 4:59 per kilometre held for the full 26.2 miles (42.195 km). On the Detroit Free Press Marathon specifically, the elevation profile means even effort produces uneven splits — the table on this page gives the target for every mile.
What should my halfway split be for a 3:30 at the Detroit Free Press Marathon?
1:48:58. That is the grade-adjusted halfway target for this course, not simply half of 3:30:00 — it accounts for where the climbing sits. Reaching the half meaningfully faster than this on this course usually means you have spent the effort you need for the closing miles.
Should I run even splits at the Detroit Free Press Marathon?
Even effort at a 3:30 goal produces splits between 7:24 and 12:56 per mile — about 332 seconds between the easiest and hardest one. Grade-adjusted pacing gives back time on the descents and spends it on the climbs, which is what running an even physiological effort actually looks like on a course with this profile.
How are these Detroit Free Press Marathon splits calculated?
Each mile is weighted by its gradient using the Minetti et al. (2002) cost-of-running polynomial, which measures the metabolic cost of running at grades from −45% to +45%. The total is then scaled so the whole course adds up to 3:30:00. Uphill sections get more time and downhill sections less, at a constant effort throughout.
Is 3:30 a realistic marathon goal?
3:30 is a fast recreational time, roughly the top quintile of a big-city field. This is also a common Boston-qualifying range, though the exact standard depends on your age group and sex. Whether it is realistic for you depends on your recent race results and weekly volume rather than on the number itself — the race-time predictor on this site will convert a recent 5K, 10K or half-marathon result into a marathon estimate using the Riegel power-law model.