Kathryn Chalmers

Bib: 17578 F GB

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Masters (Masters Women)

#0 / 11371

Division (F45-49)

#0 / 2995

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

9:36/mi

29:47

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

10:18/mi

1:01:44

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:37/mi

1:37:47

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

11:45/mi

2:14:15

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

11:35/mi

2:22:01

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

11:46/mi

2:50:39

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

11:58/mi

3:27:48

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

14:09/mi

4:11:43

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:39/mi

4:51:00

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

12:11/mi

5:07:36

↑ 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

2:22:0110:51 /mi⚡ faster

2nd Half

2:45:3512:38 /mi+16.6%

Positive split — 16.6% slower in the second half

AI Race Performance Report

Kathryn'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	29:47	9:36	3.11 mi	29:47	9:36	-
10K	1:01:44	9:57	3.10 mi	31:57	10:18	+0:42
15K	1:37:47	10:30	3.11 mi	36:03	11:37	+1:19
20K	2:14:15	10:49	3.11 mi	36:28	11:45	+0:08
Half(13.10 mi)	2:22:01	10:51	0.67 mi	7:46	11:35	-0:10
25K	2:50:39	11:00	2.43 mi	28:38	11:46	+0:11
30K	3:27:48	11:09	3.11 mi	37:09	11:58	+0:12
35K	4:11:43	11:35	3.11 mi	43:55	14:09	+2:11
40K	4:51:00	11:43	3.10 mi	39:17	12:39	-1:30
Finish(26.22 mi)	5:07:36	11:45	1.37 mi	16:36	12:11	-0:28

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

9:36 /mi

Average Pace

11:44 /mi

Slowest Pace

14:09 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:01:44

20% of race

Time at Steady Pace

2:42:40

53% of race

Time at Slower Pace

1:23:12

27% of race

Average Pace: 11:44 /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	F45-49	Seg. Overall	Seg. Females	Seg. F45-49
5K	3.11 mi	34287	10599	10599	46066	16957	16957
10K	3.10 mi	36808-2521	11810-1211	11810-1211	39253	13072	13072
15K	3.11 mi	40443-3635	13679-1869	13679-1869	46066	16957	16957
20K	3.11 mi	42257-1814	14765-1086	14765-1086	46450	17440	17440
Half(13.10 mi)	0.67 mi	42272-15	14801-36	14801-36	43206	15869	15869
25K	2.43 mi	42023+249	14781+20	14781+20	41750	15227	15227
30K	3.11 mi	41255+768	14570+211	14570+211	38820	14139	14139
35K	3.11 mi	42388-1133	15400-830	15400-830	46777	18879	18879
40K	3.10 mi	42153+235	15434-34	15434-34	40026	15757	15757
Finish(26.22 mi)	1.37 mi	42062+91	15444-10	15444-10	41055	16148	16148

16148

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