Kat Darby

Bib: 51441 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Top 26%

Gender (Female)

#0 / 26115

Top 16%

Division (F18-39)

#0 / 14744

Top 17%

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

7:46/mi

24:06

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

7:53/mi

48:35

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

8:07/mi

1:13:45

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

8:21/mi

1:39:41

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

8:45/mi

1:45:33

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

8:18/mi

2:05:46

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

8:50/mi

2:33:12

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

9:34/mi

3:02:55

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

10:23/mi

3:35:09

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

9:18/mi

3:47:49

↑ 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

1:45:338:04 /mi⚡ faster

2nd Half

2:02:169:20 /mi+15.8%

Positive split — 15.8% slower in the second half

AI Race Performance Report

Kat'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	24:06	7:46	3.11 mi	24:06	7:46	-
10K	48:35	7:50	3.10 mi	24:29	7:53	+0:07
15K	1:13:45	7:55	3.11 mi	25:10	8:07	+0:14
20K	1:39:41	8:02	3.11 mi	25:56	8:21	+0:14
Half(13.10 mi)	1:45:33	8:04	0.67 mi	5:52	8:45	+0:24
25K	2:05:46	8:06	2.43 mi	20:13	8:18	-0:27
30K	2:33:12	8:14	3.11 mi	27:26	8:50	+0:32
35K	3:02:55	8:25	3.11 mi	29:43	9:34	+0:44
40K	3:35:09	8:40	3.10 mi	32:14	10:23	+0:49
Finish(26.22 mi)	3:47:49	8:42	1.37 mi	12:40	9:18	-1:05

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

7:46 /mi

Average Pace

8:42 /mi

Slowest Pace

10:23 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:59:54

53% of race

Time at Steady Pace

33:18

15% of race

Time at Slower Pace

1:14:37

33% of race

Average Pace: 8:41 /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	11375	2372	2372	12045	2620	2620
10K	3.10 mi	11388-13	2394-22	2394-22	11597	2488	2488
15K	3.11 mi	11507-119	2434-40	2434-40	12045	2620	2620
20K	3.11 mi	12897-1390	2884-450	2884-450	16443	4041	4041
Half(13.10 mi)	0.67 mi	13213-316	2986-102	2986-102	18064	4590	4590
25K	2.43 mi	13279-66	3014-28	3014-28	14160	3393	3393
30K	3.11 mi	13674-395	3190-176	3190-176	15859	4132	4132
35K	3.11 mi	14323-649	3529-339	3529-339	18840	5613	5613
40K	3.10 mi	15501-1178	4069-540	4069-540	23494	8043	8043
Finish(26.22 mi)	1.37 mi	15501	4123-54	4123-54	17336	5551	5551

5551

Passing Analysis

Category:

▼Net Change

0 passed by0 passed

Segment	Movement	Rank
Start → 5K	-	#11375
5K → 10K	350337-13	#11375 → #11388
10K → 15K	303184-119	#11388 → #11507
15K → 20K	142737-1390	#11507 → #12897
20K → Half	32812-316	#12897 → #13213
Half → 25K	272206-66	#13213 → #13279
25K → 30K	653258-395	#13279 → #13674
30K → 35K	886237-649	#13674 → #14323
35K → 40K	1314136-1178	#14323 → #15501
40K → Finish	1711710	#15501 → #15501
TOTALS	57041578-4126	#11375 → #15501

Passing Visualized

Category:

Passing Circle

Position Flow

Race Lanes

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