Isabel Johnson

Bib: 7808 F GB

0:00
0:00
/ mi
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Overall
#0 / 59786
Top 16%
Gender (Female)
#0 / 26115
Top 8%
Division (F18-39)
#0 / 14744
Top 9%
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
7:26/mi
23:03
49125
10K· 6.21 mi
7:35/mi
46:34
5081
15K· 9.32 mi
7:53/mi
1:11:01
4451
20K· 12.43 mi
7:32/mi
1:34:25
6740
Half· 13.10 mi
7:47/mi
1:39:38
27
25K· 15.53 mi
7:46/mi
1:58:31
5063
30K· 18.64 mi
8:05/mi
2:23:35
6946
35K· 21.75 mi
8:29/mi
2:49:54
8788
40K· 24.85 mi
8:49/mi
3:17:16
5875
Finish· 26.22 mi
8:55/mi
3:29:25
1418
Course Elevation
503ft
Total climb
166ft
Range
6 to 172 ft
613ft
Total descent

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The Course

Half Splits

1st Half· via Half
1:39:387:37 /mi⚡ faster
2nd Half
1:49:478:23 /mi+10.2%
Positive split — 10.2% slower in the second half
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Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
23:037:263.11 mi23:03
7:26
-
10K
46:347:303.10 mi23:31
7:35
+0:09
15K
1:11:017:383.11 mi24:27
7:53
+0:18
20K
1:34:257:363.11 mi23:24
7:32
-0:21
Half(13.10 mi)
1:39:387:370.67 mi5:13
7:47
+0:15
25K
1:58:317:382.43 mi18:53
7:46
-0:01
30K
2:23:357:433.11 mi25:04
8:05
+0:19
35K
2:49:547:493.11 mi26:19
8:29
+0:24
40K
3:17:167:573.10 mi27:22
8:49
+0:20
Finish(26.22 mi)
3:29:258:001.37 mi12:09
8:55
+0:06
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:26 /mi

Average Pace

8:00 /mi

Slowest Pace

8:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:23:35

69% of race

Time at Steady Pace

26:19

13% of race

Time at Slower Pace

39:31

19% of race

Average Pace: 7:59 /mi

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

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi837014001400984418651865
10K3.10 mi8560-1901455-551455-55885815421542
15K3.11 mi8983-4231588-1331588-133984418651865
20K3.11 mi8851+1321546+421546+42868415061506
Half(13.10 mi)0.67 mi8848+31548-21548-2897216091609
25K2.43 mi8878-301569-211569-21919617391739
30K3.11 mi8893-151602-331602-33972620162016
35K3.11 mi9027-1341702-1001702-1001066025712571
40K3.10 mi9286-2591931-2291931-2291212934383438
Finish(26.22 mi)1.37 mi9562-2762041-1102041-1101417343394339

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×10
+49ft-125ft

Overall

9844

Females

1865

F18-39

1865

5K→10K

3.1 - 6.2 mi

Top 15%
+50ft-81ft

Overall

8858

Females

1542

F18-39

1542

10K→15K

6.2 - 9.3 mi

Top 16%
+44ft-51ft

Overall

9844

Females

1865

F18-39

1865

15K→20K

9.3 - 12.4 mi

Top 15%
+67ft-40ft

Overall

8684

Females

1506

F18-39

1506

20K→Half

12.4 - 13.1 mi

Top 15%
+8ft-27ft

Overall

8972

Females

1609

F18-39

1609

Half→25K

13.1 - 15.5 mi

Top 15%
+50ft-63ft

Overall

9196

Females

1739

F18-39

1739

25K→30K

15.5 - 18.6 mi

Top 16%
+69ft-46ft

Overall

9726

Females

2016

F18-39

2016

30K→35K

18.6 - 21.8 mi

Top 18%
+87ft-88ft

Overall

10660

Females

2571

F18-39

2571

35K→40K

21.8 - 24.9 mi

Top 20%
+58ft-75ft

Overall

12129

Females

3438

F18-39

3438

40K→Finish

24.9 - 26.2 mi

Top 24%
+14ft-18ft

Overall

14173

Females

4339

F18-39

4339

Passing Analysis

Category:
Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#8370
5K10K
200161-190
#8370 #8560
10K15K
20069-423
#8560 #8983
15K20K
77209*+132
#8983 #8851
20KHalf
3134+3
#8851 #8848
Half25K
164134-30
#8848 #8878
25K30K
240225-15
#8878 #8893
30K35K
200200-134
#8893 #9027
35K40K
200200-259
#9027 #9286
40KFinish
20056-276
#9286 #9562
TOTALS
15121288*-1192
#8370 #9562

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

London Marathon Events

London Marathon Events

Mika Timing

Mika Timing