Katy Birks

Bib: 30024 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

14:36/mi

45:20

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

15:12/mi

1:32:33

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

16:28/mi

2:23:42

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

16:55/mi

3:16:13

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

17:34/mi

3:28:00

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

18:23/mi

4:12:45

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

17:50/mi

5:08:08

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

18:32/mi

6:05:42

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

18:47/mi

7:04:01

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

18:28/mi

7:29:12

↑ 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

3:28:0015:53 /mi⚡ faster

2nd Half

4:01:1218:24 /mi+16.0%

Positive split — 16.0% slower in the second half

AI Race Performance Report

Katy'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	45:20	14:36	3.11 mi	45:20	14:36	-
10K	1:32:33	14:54	3.10 mi	47:13	15:12	+0:36
15K	2:23:42	15:26	3.11 mi	51:09	16:28	+1:16
20K	3:16:13	15:48	3.11 mi	52:31	16:55	+0:27
Half(13.10 mi)	3:28:00	15:53	0.67 mi	11:47	17:34	+0:39
25K	4:12:45	16:17	2.43 mi	44:45	18:23	+0:49
30K	5:08:08	16:32	3.11 mi	55:23	17:50	-0:33
35K	6:05:42	16:49	3.11 mi	57:34	18:32	+0:42
40K	7:04:01	17:04	3.10 mi	58:19	18:47	+0:15
Finish(26.22 mi)	7:29:12	17:09	1.37 mi	25:11	18:28	-0:19

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

14:36 /mi

Average Pace

17:09 /mi

Slowest Pace

18:47 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:16:13

44% of race

Time at Steady Pace

2:17:06

31% of race

Time at Slower Pace

1:55:53

26% of race

Average Pace: 17:08 /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	58987	25528	25528	58881	25447	25447
10K	3.10 mi	58918+69	25472+56	25472+56	58701	25306	25306
15K	3.11 mi	58976-58	25511-39	25511-39	58881	25447	25447
20K	3.11 mi	58941+35	25479+32	25479+32	58667	25322	25322
Half(13.10 mi)	0.67 mi	58959-18	25496-17	25496-17	58753	25444	25444
25K	2.43 mi	58949+10	25490+6	25490+6	58419	25150	25150
30K	3.11 mi	58909+40	25468+22	25468+22	57963	24927	24927
35K	3.11 mi	58896+13	25464+4	25464+4	58178	25156	25156
40K	3.10 mi	58939-43	25500-36	25500-36	58748	25482	25482
Finish(26.22 mi)	1.37 mi	58952-13	25514-14	25514-14	58794	25543	25543

25543

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