ST JUDE MEMPHIS MARATHON HALF MARATHON 2025

Greg Jackson

Collierville, TN

Bib: 10648 M

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 6843

Gender (Male)

#0 / 2969

Masters (Masters Men)

#0 / 1204

Division (M50-54)

#0 / 231

Race Day Weather

35°/25°F

mist

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Mile 5 · 261 ft

Start

0:00

Race begins

258 ft elev

5K· 3.11 mi

10:54/mi

33:53

↑ 118 ft↓ 72 ft0.3% grade

304 ft elev

10K· 6.21 mi

11:20/mi

1:09:05

↑ 105 ft↓ 119 ft

290 ft elev

9:20/mi

1:25:45

↑ 35 ft↓ 76 ft0.4% grade

245 ft elev

10M

12:38/mi

1:51:01

↑ 45 ft↓ 35 ft

254 ft elev

11M

13:23/mi

2:04:24

↑ 29 ft↓ 24 ft

260 ft elev

Finish· 13.11 mi

15:40/mi

2:37:26

↑ 73 ft↓ 70 ft

262 ft elev

Course Elevation

407ft

Total climb

79ft

Range

237 to 316 ft

403ft

Total descent

About the height of a seven-story building

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The Course

Half Splits

1st Half· via 10K

1:09:0511:07 /mi⚡ faster

2nd Half

1:28:2012:49 /mi+27.9%

Positive split — 27.9% slower in the second half

AI Race Performance Report

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	33:53	10:54	3.11 mi	33:53	10:54	-
10K	1:09:05	11:07	3.10 mi	35:12	11:20	+0:26
8M	1:25:45	10:43	1.79 mi	16:40	9:20	-2:00
10M	1:51:01	11:06	2.00 mi	25:16	12:38	+3:18
11M	2:04:24	11:19	1.00 mi	13:23	13:23	+0:45
Finish(13.11 mi)	2:37:26	12:01	2.11 mi	33:02	15:40	+2:17

Trend:

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Checkpoints & Pacing

Pace Line

Fastest Pace

9:20 /mi

Average Pace

12:01 /mi

Slowest Pace

15:40 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:25:45

54% of race

Time at Steady Pace

38:39

25% of race

Time at Slower Pace

33:02

21% of race

Average Pace: 12:01 /mi

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Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi3.3mi6.6mi9.8mi13.1mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Males	M50-54	Seg. Overall	Seg. Males	Seg. M50-54
5K	3.11 mi	4149	2146	2146	4149	2146	2146
10K	3.10 mi	4161-12	2151-5	2151-5	4216	2167	2167
8M	1.79 mi	4184-23	2154-3	2154-3	4299	2158	2158
10M	2.00 mi	4248-64	2171-17	2171-17	4510	2215	2215
11M	1.00 mi	4270-22	2169+2	2169+2	4601	2237	2237
Finish(13.11 mi)	2.11 mi	4525-255	2228-59	2228-59	5241	2417	2417

2417

Passing Analysis

No position changes recorded for this athlete.

All Results

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Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

ALSAC / St. Jude Children's Research Hospital

Race timed by

Sportstats