Mesa Marathon 3:45 pace chart
A 3:45:00 finish at the Mesa Marathon averages 8:35 per mile (5:20 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 7:32/mi and the hardest around 9:50/mi — about 138 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 1:50:20 — a 4:21 positive split, which is what the terrain costs you rather than a pacing error. The hardest mile on the course sits near kilometre 8; at this goal time it should take 9:27/mi, and giving it that time is the difference between finishing Mesa on plan and unravelling in the last hour.
Mile-by-mile targets for 3:45:00
Grade-adjusted splits computed from the Mesa Marathon elevation profile with the Minetti gradient-cost model, scaled so the full course adds up to 3:45:00. Uphill sections get more time, downhills less, at one constant effort throughout.
| Mile | Target /mi | Target /km | Elev Δ | Elapsed |
|---|---|---|---|---|
| 1 | 7:40 | 4:46 | -139 ft (-42 m) | 7:40 |
| 2 | 8:05 | 5:01 | -92 ft (-28 m) | 15:45 |
| 3 | 7:59 | 4:57 | -102 ft (-31 m) | 23:43 |
| 4 | 8:01 | 4:59 | -96 ft (-29 m) | 31:44 |
| 5 | 9:50 | 6:07 | +103 ft (+31 m) | 41:34 |
| 6 | 9:27 | 5:52 | +56 ft (+17 m) | 51:01 |
| 7 | 7:32 | 4:41 | -157 ft (-48 m) | 58:33 |
| 8 | 8:28 | 5:16 | -44 ft (-14 m) | 1:07:02 |
| 9 | 8:19 | 5:10 | -62 ft (-19 m) | 1:15:20 |
| 10 | 8:18 | 5:10 | -64 ft (-19 m) | 1:23:39 |
| 11 | 8:46 | 5:27 | -10 ft (-3 m) | 1:32:25 |
| 12 | 8:20 | 5:11 | -59 ft (-18 m) | 1:40:45 |
| 13 | 8:38 | 5:22 | -24 ft (-7 m) | 1:49:23 |
| 14 | 8:38 | 5:22 | -25 ft (-8 m) | 1:58:01 |
| 15 | 8:43 | 5:25 | -15 ft (-5 m) | 2:06:44 |
| 16 | 8:42 | 5:24 | -18 ft (-5 m) | 2:15:25 |
| 17 | 8:42 | 5:24 | -17 ft (-5 m) | 2:24:08 |
| 18 | 8:42 | 5:25 | -16 ft (-5 m) | 2:32:50 |
| 19 | 8:43 | 5:25 | -16 ft (-5 m) | 2:41:33 |
| 20 | 8:50 | 5:29 | -3 ft (-1 m) | 2:50:22 |
| 21 | 8:47 | 5:27 | -8 ft (-3 m) | 2:59:09 |
| 22 | 8:52 | 5:30 | +1 ft (0 m) | 3:08:00 |
| 23 | 8:55 | 5:32 | +7 ft (+2 m) | 3:16:55 |
| 24 | 8:52 | 5:30 | +1 ft (0 m) | 3:25:47 |
| 25 | 8:46 | 5:27 | -10 ft (-3 m) | 3:34:33 |
| 26 | 8:32 | 5:18 | -38 ft (-12 m) | 3:43:05 |
| 26.2 | 8:47 | 5:28 | -2 ft (0 m) | 3:45:00 |
Frequently asked questions
What pace is a 3:45 marathon?
A 3:45:00 marathon is 8:35 per mile or 5:20 per kilometre held for the full 26.2 miles (42.195 km). On the Mesa 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 3:45 at the Mesa Marathon?
1:50:20. That is the grade-adjusted halfway target for this course, not simply half of 3:45:00 — 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 Mesa Marathon?
Even effort at a 3:45 goal produces splits between 7:32 and 9:50 per mile — about 138 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 Mesa 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 3:45:00. Uphill sections get more time and downhill sections less, at a constant effort throughout.
Is 3:45 a realistic marathon goal?
3:45 is a fast recreational time, roughly the top quintile of a big-city field. 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.