Mayumi Iwao

Bib: 69909 F JP

0:00
0:00
/ mi
Masters
Be the first to cheer!
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
5K· 3.11 mi
11:12/mi
34:46
49125
10K· 6.21 mi
10:54/mi
1:08:35
5081
15K· 9.32 mi
11:56/mi
1:45:38
4451
20K· 12.43 mi
20:19/mi
2:48:43
6740
Half· 13.10 mi
10:55/mi
2:56:02
27
25K· 15.53 mi
16:59/mi
3:37:24
5063
30K· 18.64 mi
14:11/mi
4:21:25
6946
35K· 21.75 mi
12:45/mi
5:01:00
8788
40K· 24.85 mi
12:19/mi
5:39:15
5875
Finish· 26.22 mi
11:27/mi
5:54:51
1418
Course Elevation
503ft
Total climb
166ft
Range
6 to 172 ft
613ft
Total descent
About the height of the Statue of Liberty

See every mile of your race

Add your watch's GPX to unlock per-mile pace, heart rate, and grade — mile by mile on this timeline.

Works with Garmin, Apple Watch, Strava, COROS, Suunto & more.

The Course

Half Splits

1st Half· via Half
2:56:0213:27 /mi⚡ faster
2nd Half
2:58:4913:38 /mi+1.6%
Positive split — 1.6% slower in the second half
Is this your race?

Unlock your AI Race Performance Report

Your Race Story, performance analysis & focus areas — built from your data, free when you claim.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
34:4611:123.11 mi34:46
11:12
-
10K
1:08:3511:033.10 mi33:49
10:54
-0:18
15K
1:45:3811:213.11 mi37:03
11:56
+1:02
20K
2:48:4313:353.11 mi1:03:05
20:19
+8:23
Half(13.10 mi)
2:56:0213:270.67 mi7:19
10:55
-9:24
25K
3:37:2414:002.43 mi41:22
16:59
+6:04
30K
4:21:2514:023.11 mi44:01
14:11
-2:48
35K
5:01:0013:513.11 mi39:35
12:45
-1:26
40K
5:39:1513:393.10 mi38:15
12:19
-0:26
Finish(26.22 mi)
5:54:5113:331.37 mi15:36
11:27
-0:52
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:54 /mi

Average Pace

13:33 /mi

Slowest Pace

20:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:26:23

58% of race

Time at Slower Pace

2:28:28

42% of race

Average Pace: 13:32 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi498171912019120480961820618206
10K3.10 mi47138+267917511+160917511+1609447131611216112
15K3.11 mi47429-29117708-19717708-197480961820618206
20K3.11 mi55946-851723331-562323331-5623596262600026000
Half(13.10 mi)0.67 mi55426+52022985+34622985+346383751321213212
25K2.43 mi56024-59823428-44323428-443572202436024360
30K3.11 mi55230+79422913+51522913+515497582005120051
35K3.11 mi53757+147322060+85322060+853393681505115051
40K3.10 mi52524+123321351+70921351+709376891464214642
Finish(26.22 mi)1.37 mi51996+52821066+28521066+285354031351513515

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
131 ft55 ft
49ft125ft
117 ft

Overall

48096

Females

18206

F45-49

18206

5K→10K

3.1 - 6.2 mi

Top 75%
55 ft24 ft
50ft81ft
45 ft

Overall

44713

Females

16112

F45-49

16112

10K→15K

6.2 - 9.3 mi

Top 80%
24 ft18 ft
44ft51ft
17 ft

Overall

48096

Females

18206

F45-49

18206

15K→20K

9.3 - 12.4 mi

Top 100%
18 ft45 ft
67ft40ft
38 ft

Overall

59626

Females

26000

F45-49

26000

20K→Half

12.4 - 13.1 mi

Top 64%
45 ft26 ft
8ft27ft
20 ft

Overall

38375

Females

13212

F45-49

13212

Half→25K

13.1 - 15.5 mi

Top 96%
25 ft12 ft
50ft63ft
20 ft

Overall

57220

Females

24360

F45-49

24360

25K→30K

15.5 - 18.6 mi

Top 83%
12 ft35 ft
69ft46ft
28 ft

Overall

49758

Females

20051

F45-49

20051

30K→35K

18.6 - 21.8 mi

Top 66%
35 ft34 ft
87ft88ft
23 ft

Overall

39368

Females

15051

F45-49

15051

35K→40K

21.8 - 24.9 mi

Top 63%
34 ft17 ft
58ft75ft
31 ft

Overall

37689

Females

14642

F45-49

14642

40K→Finish

24.9 - 26.2 mi

Top 59%
17 ft13 ft
14ft18ft
13 ft

Overall

35403

Females

13515

F45-49

13515

Passing Analysis

Category:
Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#49817
5K10K
602739+2679
#49817 #47138
10K15K
808517-291
#47138 #47429
15K20K
85170-8517
#47429 #55946
20KHalf
0520+520
#55946 #55426
Half25K
726128-598
#55426 #56024
25K30K
22816+794
#56024 #55230
30K35K
01473+1473
#55230 #53757
35K40K
41237+1233
#53757 #52524
40KFinish
1529+528
#52524 #51996
TOTALS
101387959-2179
#49817 #51996

Passing Visualized

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Is this your race? Claim it to upload your GPX and export your data as yours.

Upload your GPX file

Add per-mile pace & heart rate — works with Garmin, Apple Watch, Strava & more.

Download your race track as a GPX or TCX file for Strava, Garmin Connect, or other apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

London Marathon Events

London Marathon Events

Mika Timing

Mika Timing