Memphis's Flattest December Morning Runs Through the Heart of St. Jude Country

From B.B. King Blvd. to AutoZone Park, the St. Jude Memphis 10K traces a point-to-point route through the St. Jude campus and historic Memphis neighborhoods — a flat, road 10K that drew more than 4,000 finishers in each of the last two editions. Median finishing times have held remarkably steady at 1:18:57 (2024) and 1:19:07 (2025), suggesting a course and field that reward consistent effort even in genuinely cold December conditions.

By the numbers

The race has seen a notable shift in field size between its two most recent editions: 4,693 finishers in 2024 fell to 4,116 in 2025, a drop of roughly 12%. Women made up the majority of the field both years — 3,033 in 2024 and 2,661 in 2025 — accounting for around 65% of finishers each time. The gender medians have been consistent across both editions: men cluster around 1:10:20–1:10:42 and women around 1:23:39–1:23:45, a spread of roughly 13 minutes that has barely moved year over year.

How the course runs

The course is flat — net descent of 45 feet over 6.2 miles, with no sustained climb or descent of consequence. GPS noise aside, runners can treat every mile as functionally the same terrain.

What the 2025 pace data reveals is a field that starts conservatively, fades through the middle miles, and then pulls back toward its opening effort over the final stretch.

The opening mile and a half comes in at 11:59/mi — brisk for a median field, likely reflecting early-race energy and the flat start on B.B. King Blvd. The segment ending at mile 2.5 slows sharply to 13:49/mi, a nearly two-minute-per-mile drop that suggests the cold and the reality of race pace set in quickly. The final stretch recovers to 12:46/mi, meaning the field does find a second gear over the back half of the course. For runners planning their effort, the lesson is clear: the opening mile tends to be fast, the next mile punishing if that pace isn't earned, and the finish more forgiving than the middle.

Pacing patterns

Back-half slowdown is the norm across mass-participation road races, and this field is no exception — though the recovery in the final segment indicates the slowdown isn't terminal. The cold in both 2024 and 2025 likely contributed to the pattern: starting cautiously in freezing temperatures is rational, and the middle miles are where that caution either pays off or compounds.

The weather question

Both prior editions were run in conditions most runners would call bracing. In 2024, temperatures ranged 23–33°F with light wind (~6 mph) and 63% humidity. In 2025, the range was 25–35°F with near-calm wind but mist and 93% humidity — conditions that can feel significantly colder than the thermometer suggests. December in Memphis reliably delivers cold start-line mornings, and the 8:00 a.m. start means runners should plan for temperatures in the low-to-mid 30s. The 2025 mist and high humidity didn't dramatically alter the median finish time compared to 2024's drier cold, which suggests the field adapts reasonably well across the range of conditions this date typically produces.

What it takes

Breaking 57 minutes puts a runner in the top 10% of the field; cracking 1:05 earns a top-25% finish. Both benchmarks have been nearly identical across the two editions, making them reliable targets for 2026.

What to watch

The field size question is the most interesting thread heading into 2026. After losing roughly 600 finishers between 2024 and 2025, whether the race returns toward its larger footprint — or stabilizes near 4,100 — will say something about the event's momentum as a fundraising vehicle for St. Jude. The consistency of winning times across both men's and women's divisions (men's winning times of 34:41 and 35:26; women's of 37:52 and 38:48) also sets a clear competitive benchmark: sub-35 for men and sub-39 for women represent the standard the course has shown it can support on a cold December morning.