Demi Chase

Bib: 18122 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Top 49%

Division (F18-39)

#0 / 14744

Race Day Weather

56°/46°F

overcast clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

131 ft elev

5K· 3.11 mi

9:33/mi

29:39

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

9:28/mi

59:02

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

10:00/mi

1:30:06

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:32/mi

2:02:48

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

11:14/mi

2:10:20

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

11:08/mi

2:37:27

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

12:25/mi

3:16:00

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

12:39/mi

3:55:17

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:12/mi

4:33:09

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

12:11/mi

4:49:45

↑ 14 ft↓ 18 ft

19 ft elev

Course Elevation

503ft

Total climb

166ft

Range

6 to 172 ft

613ft

Total descent

About the height of the Statue of Liberty

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The Course

Half Splits

1st Half· via Half

2:10:209:58 /mi⚡ faster

2nd Half

2:39:2512:10 /mi+22.3%

Positive split — 22.3% slower in the second half

AI Race Performance Report

Demi's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	29:39	9:33	3.11 mi	29:39	9:33	-
10K	59:02	9:31	3.10 mi	29:23	9:28	-0:05
15K	1:30:06	9:41	3.11 mi	31:04	10:00	+0:32
20K	2:02:48	9:53	3.11 mi	32:42	10:32	+0:32
Half(13.10 mi)	2:10:20	9:58	0.67 mi	7:32	11:14	+0:42
25K	2:37:27	10:09	2.43 mi	27:07	11:08	-0:06
30K	3:16:00	10:31	3.11 mi	38:33	12:25	+1:17
35K	3:55:17	10:50	3.11 mi	39:17	12:39	+0:14
40K	4:33:09	11:00	3.10 mi	37:52	12:12	-0:27
Finish(26.22 mi)	4:49:45	11:04	1.37 mi	16:36	12:11	-0:01

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

9:28 /mi

Average Pace

11:04 /mi

Slowest Pace

12:39 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:02:48

42% of race

Time at Steady Pace

34:39

12% of race

Time at Slower Pace

2:12:18

46% of race

Average Pace: 11:03 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Females	F18-39	Seg. Overall	Seg. Females	Seg. F18-39
5K	3.11 mi	33836	10404	10404	32799	9998	9998
10K	3.10 mi	32361+1475	9781+623	9781+623	31013	9263	9263
15K	3.11 mi	32448-87	9819-38	9819-38	32799	9998	9998
20K	3.11 mi	33927-1479	10536-717	10536-717	38076	12832	12832
Half(13.10 mi)	0.67 mi	34258-331	10711-175	10711-175	40726	14444	14444
25K	2.43 mi	34784-526	11064-353	11064-353	37865	13168	13168
30K	3.11 mi	36345-1561	12038-974	12038-974	41295	15434	15434
35K	3.11 mi	36773-428	12464-426	12464-426	38794	14754	14754
40K	3.10 mi	36693+80	12648-184	12648-184	36858	14240	14240
Finish(26.22 mi)	1.37 mi	36886-193	12809-161	12809-161	41042	16135	16135

16135

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

London Marathon Events

Race timed by

Mika Timing