ST JUDE MEMPHIS MARATHON HALF MARATHON 2025

Justin Irving

Chesterfield, MO

Bib: 10309 M

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 6843

Top 4%

Gender (Male)

#0 / 2969

Top 7%

Masters (Masters Men)

#0 / 1204

Top 3%

Division (M45-49)

#0 / 253

Top 8%

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

7:25/mi

23:01

↑ 118 ft↓ 72 ft0.3% grade

304 ft elev

10K· 6.21 mi

7:27/mi

46:11

↑ 105 ft↓ 119 ft

290 ft elev

6:00/mi

56:55

↑ 35 ft↓ 76 ft0.4% grade

245 ft elev

10M

7:53/mi

1:12:40

↑ 45 ft↓ 35 ft

254 ft elev

11M

7:59/mi

1:20:39

↑ 29 ft↓ 24 ft

260 ft elev

Finish· 13.11 mi

8:48/mi

1:39:12

↑ 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

46:117:26 /mi⚡ faster

2nd Half

53:007:41 /mi+14.8%

Positive split — 14.8% 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	23:01	7:25	3.11 mi	23:01	7:25	-
10K	46:11	7:26	3.10 mi	23:10	7:27	+0:02
8M	56:55	7:07	1.79 mi	10:44	6:00	-1:27
10M	1:12:40	7:16	2.00 mi	15:45	7:53	+1:53
11M	1:20:39	7:20	1.00 mi	7:59	7:59	+0:06
Finish(13.11 mi)	1:39:12	7:34	2.11 mi	18:33	8:48	+0:49

Trend:

Faster pace

Steady pace

Slower pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

6:00 /mi

Average Pace

7:34 /mi

Slowest Pace

8:48 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

56:55

57% of race

Time at Steady Pace

23:44

24% of race

Time at Slower Pace

18:33

19% of race

Average Pace: 7:34 /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	M45-49	Seg. Overall	Seg. Males	Seg. M45-49
5K	3.11 mi	221	179	179	221	179	179
10K	3.10 mi	223-2	180-1	180-1	238	194	194
8M	1.79 mi	220+3	178+2	178+2	241	197	197
10M	2.00 mi	228-8	183-5	183-5	288	232	232
11M	1.00 mi	232-4	187-4	187-4	325	259	259
Finish(13.11 mi)	2.11 mi	249-17	200-13	200-13	392	307	307

307

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