Iona Williamson

Bib: 64218 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

11:14/mi

34:52

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

11:27/mi

1:10:26

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:55/mi

1:47:25

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

11:48/mi

2:24:02

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

12:11/mi

2:32:12

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

12:08/mi

3:01:44

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

12:24/mi

3:40:13

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

12:39/mi

4:19:31

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:47/mi

4:59:12

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

12:32/mi

5:16:17

↑ 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

2:32:1211:38 /mi⚡ faster

2nd Half

2:44:0512:31 /mi+7.8%

Positive split — 7.8% slower in the second half

AI Race Performance Report

Iona'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	34:52	11:14	3.11 mi	34:52	11:14	-
10K	1:10:26	11:21	3.10 mi	35:34	11:27	+0:13
15K	1:47:25	11:32	3.11 mi	36:59	11:55	+0:28
20K	2:24:02	11:36	3.11 mi	36:37	11:48	-0:07
Half(13.10 mi)	2:32:12	11:38	0.67 mi	8:10	12:11	+0:23
25K	3:01:44	11:42	2.43 mi	29:32	12:08	-0:03
30K	3:40:13	11:49	3.11 mi	38:29	12:24	+0:16
35K	4:19:31	11:56	3.11 mi	39:18	12:39	+0:15
40K	4:59:12	12:03	3.10 mi	39:41	12:47	+0:08
Finish(26.22 mi)	5:16:17	12:05	1.37 mi	17:05	12:32	-0:15

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

11:14 /mi

Average Pace

12:04 /mi

Slowest Pace

12:47 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:01:44

57% of race

Time at Steady Pace

2:14:33

43% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:04 /mi

Loading chart...

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	50020	19258	19258	47979	18125	18125
10K	3.10 mi	49360+660	18860+398	18860+398	48846	18565	18565
15K	3.11 mi	48763+597	18511+349	18511+349	47979	18125	18125
20K	3.11 mi	48136+627	18226+285	18226+285	46693	17590	17590
Half(13.10 mi)	0.67 mi	48027+109	18192+34	18192+34	46665	17871	17871
25K	2.43 mi	47085+942	17721+471	17721+471	43620	16256	16256
30K	3.11 mi	45927+1158	17182+539	17182+539	41181	15383	15383
35K	3.11 mi	44824+1103	16725+457	16725+457	38825	14770	14770
40K	3.10 mi	44319+505	16591+134	16591+134	40899	16160	16160
Finish(26.22 mi)	1.37 mi	44245+74	16606-15	16606-15	43554	17374	17374

17374

Passing Analysis

Category:

▲Net Change

0 passed by0 passed

Segment	Movement	Rank
Start → 5K	-	#50020
5K → 10K	4121072+660	#50020 → #49360
10K → 15K	317914+597	#49360 → #48763
15K → 20K	217844+627	#48763 → #48136
20K → Half	63172+109	#48136 → #48027
Half → 25K	771019+942	#48027 → #47085
25K → 30K	881246+1158	#47085 → #45927
30K → 35K	791182+1103	#45927 → #44824
35K → 40K	157662+505	#44824 → #44319
40K → Finish	116190+74	#44319 → #44245
TOTALS	15267301+5775	#50020 → #44245

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