Isabel Norrey

Bib: 43168 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Top 47%

Gender (Female)

#0 / 26115

Top 34%

Division (F18-39)

#0 / 14744

Top 35%

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

8:40/mi

26:55

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

9:44/mi

57:08

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

9:50/mi

1:27:39

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

9:04/mi

1:55:49

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

9:13/mi

2:02:00

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

10:41/mi

2:27:59

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

12:06/mi

3:05:32

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

11:34/mi

3:41:26

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

9:22/mi

4:10:30

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

8:59/mi

4:22:45

↑ 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

2:02:009:19 /mi⚡ faster

2nd Half

2:20:4510:44 /mi+15.4%

Positive split — 15.4% slower in the second half

AI Race Performance Report

Isabel'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	26:55	8:40	3.11 mi	26:55	8:40	-
10K	57:08	9:12	3.10 mi	30:13	9:44	+1:04
15K	1:27:39	9:25	3.11 mi	30:31	9:50	+0:06
20K	1:55:49	9:20	3.11 mi	28:10	9:04	-0:46
Half(13.10 mi)	2:02:00	9:19	0.67 mi	6:11	9:13	+0:09
25K	2:27:59	9:32	2.43 mi	25:59	10:41	+1:28
30K	3:05:32	9:58	3.11 mi	37:33	12:06	+1:25
35K	3:41:26	10:11	3.11 mi	35:54	11:34	-0:32
40K	4:10:30	10:05	3.10 mi	29:04	9:22	-2:12
Finish(26.22 mi)	4:22:45	10:02	1.37 mi	12:15	8:59	-0:23

Trend:

Faster pace

Steady pace

Slower pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

8:40 /mi

Average Pace

10:02 /mi

Slowest Pace

12:06 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:07:20

26% of race

Time at Steady Pace

1:35:59

37% of race

Time at Slower Pace

1:39:26

38% of race

Average Pace: 10:01 /mi

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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	21966	5886	5886	31160	9292	9292
10K	3.10 mi	28419-6453	8258-2372	8258-2372	33803	10442	10442
15K	3.11 mi	29558-1139	8651-393	8651-393	31160	9292	9292
20K	3.11 mi	28064+1494	8091+560	8091+560	24541	6790	6790
Half(13.10 mi)	0.67 mi	27693+371	7967+124	7967+124	23220	6436	6436
25K	2.43 mi	29082-1389	8599-632	8599-632	34603	11518	11518
30K	3.11 mi	31220-2138	9660-1061	9660-1061	39531	14503	14503
35K	3.11 mi	31105+115	9858-198	9858-198	31974	11440	11440
40K	3.10 mi	28704+2401	9054+804	9054+804	16308	5104	5104
Finish(26.22 mi)	1.37 mi	27811+893	8769+285	8769+285	14862	4615	4615

4615

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