Chelsea Mcfarlane

Bib: 20330 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Top 35%

Gender (Female)

#0 / 26115

Top 23%

Division (F18-39)

#0 / 14744

Top 25%

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

9:58/mi

30:55

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

9:35/mi

1:00:41

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

9:37/mi

1:30:32

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

9:19/mi

1:59:28

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

9:36/mi

2:05:54

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

9:24/mi

2:28:46

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

9:21/mi

2:57:46

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

8:45/mi

3:24:57

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

8:12/mi

3:50:24

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

7:54/mi

4:01:10

↑ 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

2:05:549:37 /mi+8.4%

2nd Half

1:55:168:48 /mi✓ faster

Negative split — 8.4% faster in the second half

AI Race Performance Report

Chelsea'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	30:55	9:58	3.11 mi	30:55	9:58	-
10K	1:00:41	9:46	3.10 mi	29:46	9:35	-0:23
15K	1:30:32	9:43	3.11 mi	29:51	9:37	+0:02
20K	1:59:28	9:37	3.11 mi	28:56	9:19	-0:18
Half(13.10 mi)	2:05:54	9:37	0.67 mi	6:26	9:36	+0:17
25K	2:28:46	9:35	2.43 mi	22:52	9:24	-0:12
30K	2:57:46	9:33	3.11 mi	29:00	9:21	-0:03
35K	3:24:57	9:26	3.11 mi	27:11	8:45	-0:36
40K	3:50:24	9:17	3.10 mi	25:27	8:12	-0:33
Finish(26.22 mi)	4:01:10	9:13	1.37 mi	10:46	7:54	-0:18

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

7:54 /mi

Average Pace

9:12 /mi

Slowest Pace

9:58 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:03:24

26% of race

Time at Steady Pace

2:26:51

61% of race

Time at Slower Pace

30:55

13% of race

Average Pace: 9:12 /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	38119	12445	12445	29101	8456	8456
10K	3.10 mi	35066+3053	10960+1485	10960+1485	32390	9812	9812
15K	3.11 mi	32905+2161	10008+952	10008+952	29101	8456	8456
20K	3.11 mi	31219+1686	9360+648	9360+648	27348	7834	7834
Half(13.10 mi)	0.67 mi	30926+293	9250+110	9250+110	26994	7802	7802
25K	2.43 mi	29549+1377	8773+477	8773+477	24591	7026	7026
30K	3.11 mi	27350+2199	8046+727	8046+727	20498	5799	5799
35K	3.11 mi	24348+3002	7084+962	7084+962	12554	3299	3299
40K	3.10 mi	21641+2707	6278+806	6278+806	8149	1908	1908
Finish(26.22 mi)	1.37 mi	20775+866	5999+279	5999+279	6937	1563	1563

1563

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