Niamh Costello

Bib: 36520 F IE

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

13:59/mi

43:24

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

20:07/mi

1:45:52

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

17:20/mi

2:39:43

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

19:10/mi

3:39:14

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

18:26/mi

3:51:36

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

19:38/mi

4:39:23

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

20:40/mi

5:43:33

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

19:20/mi

6:43:34

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

19:28/mi

7:44:02

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

17:10/mi

8:07:26

↑ 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

3:51:3617:41 /mi⚡ faster

2nd Half

4:15:5019:30 /mi+10.5%

Positive split — 10.5% slower in the second half

AI Race Performance Report

Niamh'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	43:24	13:59	3.11 mi	43:24	13:59	-
10K	1:45:52	17:03	3.10 mi	1:02:28	20:07	+6:08
15K	2:39:43	17:09	3.11 mi	53:51	17:20	-2:47
20K	3:39:14	17:39	3.11 mi	59:31	19:10	+1:50
Half(13.10 mi)	3:51:36	17:41	0.67 mi	12:22	18:26	-0:44
25K	4:39:23	18:00	2.43 mi	47:47	19:38	+1:12
30K	5:43:33	18:26	3.11 mi	1:04:10	20:40	+1:02
35K	6:43:34	18:34	3.11 mi	1:00:01	19:20	-1:20
40K	7:44:02	18:41	3.10 mi	1:00:28	19:28	+0:08
Finish(26.22 mi)	8:07:26	18:37	1.37 mi	23:24	17:10	-2:18

Trend:

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Checkpoints & Pacing

Pace Line

Fastest Pace

13:59 /mi

Average Pace

18:36 /mi

Slowest Pace

20:40 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:00:39

25% of race

Time at Steady Pace

5:02:37

62% of race

Time at Slower Pace

1:04:10

13% of race

Average Pace: 18:35 /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	58538	25177	25177	59286	25752	25752
10K	3.10 mi	59615-1077	25990-813	25990-813	59735	26077	26077
15K	3.11 mi	59553+62	25949+41	25949+41	59286	25752	25752
20K	3.11 mi	59584-31	25969-20	25969-20	59474	25889	25889
Half(13.10 mi)	0.67 mi	59582+2	25967+2	25967+2	59135	25692	25692
25K	2.43 mi	59560+22	25947+20	25947+20	59040	25596	25596
30K	3.11 mi	59579-19	25969-22	25969-22	59409	25871	25871
35K	3.11 mi	59542+37	25935+34	25935+34	58764	25515	25515
40K	3.10 mi	59522+20	25925+10	25925+10	59094	25692	25692
Finish(26.22 mi)	1.37 mi	59488+34	25901+24	25901+24	57845	25026	25026

25026

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