ST JUDE MEMPHIS MARATHON HALF MARATHON 2025

Heather Kalchbrenner

Salt Lake City, UT

Bib: 12588 F

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 6843

Top 34%

Gender (Female)

#0 / 3868

Top 25%

Masters (Masters Women)

#0 / 1487

Top 19%

Division (F50-54)

#0 / 302

Top 17%

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

10:28/mi

32:32

↑ 118 ft↓ 72 ft0.3% grade

304 ft elev

10K· 6.21 mi

9:54/mi

1:03:18

↑ 105 ft↓ 119 ft

290 ft elev

7:35/mi

1:16:51

↑ 35 ft↓ 76 ft0.4% grade

245 ft elev

10M

10:04/mi

1:36:58

↑ 45 ft↓ 35 ft

254 ft elev

11M

10:11/mi

1:47:09

↑ 29 ft↓ 24 ft

260 ft elev

Finish· 13.11 mi

11:02/mi

2:10:26

↑ 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

1:03:1810:11 /mi⚡ faster

2nd Half

1:07:079:44 /mi+6.0%

Positive split — 6.0% 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	32:32	10:28	3.11 mi	32:32	10:28	-
10K	1:03:18	10:11	3.10 mi	30:46	9:54	-0:34
8M	1:16:51	9:36	1.79 mi	13:33	7:35	-2:19
10M	1:36:58	9:42	2.00 mi	20:07	10:04	+2:29
11M	1:47:09	9:44	1.00 mi	10:11	10:11	+0:07
Finish(13.11 mi)	2:10:26	9:57	2.11 mi	23:17	11:02	+0:51

Trend:

Faster pace

Steady pace

Slower pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

7:35 /mi

Average Pace

9:57 /mi

Slowest Pace

11:02 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

13:33

10% of race

Time at Steady Pace

1:33:36

72% of race

Time at Slower Pace

23:17

18% of race

Average Pace: 9:57 /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	F50-54	Seg. Overall	Seg. Females	Seg. F50-54
5K	3.11 mi	3521	1602	1602	3521	1602	1602
10K	3.10 mi	2976+545	1278+324	1278+324	2564	1038	1038
8M	1.79 mi	2737+239	1151+127	1151+127	1967	743	743
10M	2.00 mi	2551+186	1045+106	1045+106	2115	843	843
11M	1.00 mi	2467+84	1009+36	1009+36	2000	800	800
Finish(13.11 mi)	2.11 mi	2349+118	955+54	955+54	2066	858	858

858

Passing Analysis

No position changes recorded for this athlete.

All Results

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Public Race Data

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Race managed by

ALSAC / St. Jude Children's Research Hospital

Race timed by

Sportstats