Rosie Chalke

Bib: 32538 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

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

11:28/mi

35:37

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

11:47/mi

1:12:13

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

12:47/mi

1:51:54

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

12:47/mi

2:31:35

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

15:48/mi

2:42:11

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

13:11/mi

3:14:17

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

14:54/mi

4:00:33

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

14:13/mi

4:44:43

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:42/mi

5:24:09

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

12:42/mi

5:41:27

↑ 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

2:42:1112:23 /mi⚡ faster

2nd Half

2:59:1613:40 /mi+10.5%

Positive split — 10.5% slower in the second half

AI Race Performance Report

Rosie'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	35:37	11:28	3.11 mi	35:37	11:28	-
10K	1:12:13	11:38	3.10 mi	36:36	11:47	+0:19
15K	1:51:54	12:01	3.11 mi	39:41	12:47	+1:00
20K	2:31:35	12:12	3.11 mi	39:41	12:47	0:00
Half(13.10 mi)	2:42:11	12:23	0.67 mi	10:36	15:48	+3:01
25K	3:14:17	12:31	2.43 mi	32:06	13:11	-2:37
30K	4:00:33	12:55	3.11 mi	46:16	14:54	+1:43
35K	4:44:43	13:06	3.11 mi	44:10	14:13	-0:41
40K	5:24:09	13:03	3.10 mi	39:26	12:42	-1:31
Finish(26.22 mi)	5:41:27	13:02	1.37 mi	17:18	12:42	0:00

Trend:

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

11:28 /mi

Average Pace

13:02 /mi

Slowest Pace

15:48 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:12:13

21% of race

Time at Steady Pace

2:48:12

49% of race

Time at Slower Pace

1:41:02

30% of race

Average Pace: 13:01 /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	51522	20216	20216	51921	20655	20655
10K	3.10 mi	51105+417	19957+259	19957+259	50858	19868	19868
15K	3.11 mi	51478-373	20270-313	20270-313	51921	20655	20655
20K	3.11 mi	51373+105	20278-8	20278-8	51061	20297	20297
Half(13.10 mi)	0.67 mi	51867-494	20619-341	20619-341	57197	24439	24439
25K	2.43 mi	51179+688	20245+374	20245+374	48306	18938	18938
30K	3.11 mi	51468-289	20519-274	20519-274	52338	21557	21557
35K	3.11 mi	50903+565	20280+239	20280+239	47172	19074	19074
40K	3.10 mi	49927+976	19794+486	19794+486	40316	15887	15887
Finish(26.22 mi)	1.37 mi	49679+248	19687+107	19687+107	44613	17940	17940

17940

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

London Marathon Events

Race timed by

Mika Timing