Isobel Boyd

Bib: 46443 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Top 49%

Gender (Female)

#0 / 26115

Top 36%

Division (F18-39)

#0 / 14744

Top 37%

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

26:54

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

8:56/mi

54:37

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

9:01/mi

1:22:36

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

8:53/mi

1:50:11

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

9:24/mi

1:56:29

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

9:50/mi

2:20:26

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

10:37/mi

2:53:23

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

12:06/mi

3:30:58

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:11/mi

4:08:48

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

12:57/mi

4:26:27

↑ 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

1:56:298:54 /mi⚡ faster

2nd Half

2:29:5811:26 /mi+28.7%

Positive split — 28.7% slower in the second half

AI Race Performance Report

Isobel'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	26:54	8:40	3.11 mi	26:54	8:40	-
10K	54:37	8:48	3.10 mi	27:43	8:56	+0:16
15K	1:22:36	8:52	3.11 mi	27:59	9:01	+0:05
20K	1:50:11	8:52	3.11 mi	27:35	8:53	-0:08
Half(13.10 mi)	1:56:29	8:54	0.67 mi	6:18	9:24	+0:31
25K	2:20:26	9:03	2.43 mi	23:57	9:50	+0:26
30K	2:53:23	9:19	3.11 mi	32:57	10:37	+0:47
35K	3:30:58	9:43	3.11 mi	37:35	12:06	+1:29
40K	4:08:48	10:01	3.10 mi	37:50	12:11	+0:05
Finish(26.22 mi)	4:26:27	10:11	1.37 mi	17:39	12:57	+0:46

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

8:40 /mi

Average Pace

10:10 /mi

Slowest Pace

12:57 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:50:11

41% of race

Time at Steady Pace

30:15

11% of race

Time at Slower Pace

2:06:01

47% of race

Average Pace: 10:10 /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	21894	5852	5852	21496	5684	5684
10K	3.10 mi	22622-728	6114-262	6114-262	23461	6438	6438
15K	3.11 mi	22120+502	5913+201	5913+201	21496	5684	5684
20K	3.11 mi	22011+109	5891+22	5891+22	22125	5951	5951
Half(13.10 mi)	0.67 mi	22134-123	5945-54	5945-54	25146	7108	7108
25K	2.43 mi	23309-1175	6377-432	6377-432	28117	8477	8477
30K	3.11 mi	25043-1734	7117-740	7117-740	29931	9748	9748
35K	3.11 mi	26865-1822	8080-963	8080-963	35444	13104	13104
40K	3.10 mi	28123-1258	8823-743	8823-743	36769	14195	14195
Finish(26.22 mi)	1.37 mi	29060-937	9285-462	9285-462	46134	18710	18710

18710

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