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Weather
Climate Avg| Time | Temp | Dew Pt | Humidity | Wind | Conditions |
|---|---|---|---|---|---|
| Start | 41.5 – 46.2°F | 37° Crisp | 70 – 83% | 5 mph N | Clear sky |
| 8:00 AM | 41 – 46.2°F | 38° Crisp | 72 – 89% | 5 mph NW | Clear sky |
| 9:00 AM | 42.9 – 42.9°F | 42° Ideal | 96 – 96% | 2 mph NW | Clear sky |
| 10:00 AM | 42.3 – 54.1°F | 42° Ideal | 71 – 88% | 6 mph N | Clear sky |
| 11:00 AM | 45.4 – 59.1°F | 42° Ideal | 65 – 71% | 6 mph N | Clear sky |
| Finish | 48.6 – 60.6°F | 42° Ideal | 57 – 66% | 7 mph N | Clear sky |
Based on 3-year average for this date. Real forecast available in 225 days.
Elevation Profile
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Course Stats
Net Elevation
+0 ft
Distance
26.22 mi
Total Gain
+432 ft
Total Loss
-432 ft
Max Grade
5.7%
Altitude
33 ft
Mile Splits
| Mile | Grade |
|---|---|
| 1 | +0.1% |
| 2 | -0.2% |
| 3 | +0.2% |
| 4 | -0.1% |
| 5 | +0.0% |
| 6 | -0.2% |
| 7 | +0.0% |
| 8 | +0.3% |
| 9 | -0.1% |
| 10 | -0.1% |
| 11 | -0.1% |
| 12 | +0.2% |
| 13 | +0.3% |
| 14 | -0.2% |
| 15 | +0.1% |
| 16 | +0.0% |
| 17 | -0.2% |
| 18 | -0.1% |
| 19 | +0.1% |
| 20 | -0.1% |
| 21 | +0.0% |
Jacksonville Marathon Pace Calculator & Race Plan
Jacksonville is one of the flattest marathons in the country with only about 80 feet of total gain. The out-and-back course runs along San Jose Boulevard and the St. Johns River through the Mandarin neighborhood. December in northeast Florida usually provides cool, comfortable racing conditions.
On a course this flat, pacing is everything. Our model focuses on managing the natural positive drift over 26 miles and adjusting for the December weather conditions.