ST JUDE MEMPHIS MARATHON HALF MARATHON 2025

Katie Irby

Rogers, AR

Bib: 16513 F

0:00

0:00

/ mi

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Overall

#0 / 6843

Top 28%

Gender (Female)

#0 / 3868

Top 19%

Division (F20-24)

#0 / 737

Top 22%

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

9:45/mi

30:18

↑ 118 ft↓ 72 ft0.3% grade

304 ft elev

10K· 6.21 mi

9:41/mi

1:00:24

↑ 105 ft↓ 119 ft

290 ft elev

7:24/mi

1:13:38

↑ 35 ft↓ 76 ft0.4% grade

245 ft elev

10M

9:40/mi

1:32:57

↑ 45 ft↓ 35 ft

254 ft elev

11M

9:49/mi

1:42:46

↑ 29 ft↓ 24 ft

260 ft elev

Finish· 13.11 mi

10:25/mi

2:04:44

↑ 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

1:00:249:43 /mi⚡ faster

2nd Half

1:04:209:20 /mi+6.5%

Positive split — 6.5% slower in the second half

AI Race Performance Report

Katie's race, broken down like a coach

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	30:18	9:45	3.11 mi	30:18	9:45	-
10K	1:00:24	9:43	3.10 mi	30:06	9:41	-0:04
8M	1:13:38	9:12	1.79 mi	13:14	7:24	-2:17
10M	1:32:57	9:18	2.00 mi	19:19	9:40	+2:16
11M	1:42:46	9:21	1.00 mi	9:49	9:49	+0:09
Finish(13.11 mi)	2:04:44	9:31	2.11 mi	21:58	10:25	+0:36

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Checkpoints & Pacing

Pace Line

Fastest Pace

7:24 /mi

Average Pace

9:31 /mi

Slowest Pace

10:25 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

13:14

11% of race

Time at Steady Pace

1:29:32

72% of race

Time at Slower Pace

21:58

18% of race

Average Pace: 9:31 /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	Females	F20-24	Seg. Overall	Seg. Females	Seg. F20-24
5K	3.11 mi	2490	1002	1002	2490	1002	1002
10K	3.10 mi	2348+142	919+83	919+83	2298	896	896
8M	1.79 mi	2203+145	852+67	852+67	1755	626	626
10M	2.00 mi	2076+127	793+59	793+59	1767	651	651
11M	1.00 mi	2015+61	765+28	765+28	1700	640	640
Finish(13.11 mi)	2.11 mi	1898+117	725+40	725+40	1551	590	590

590

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