Isabelle Kirby

Bib: 6583 F GB

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 59786
Top 16%
Gender (Female)
#0 / 26115
Top 8%
Division (F18-39)
#0 / 14744
Top 10%
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
7:49/mi
24:16
49125
10K· 6.21 mi
7:49/mi
48:31
5081
15K· 9.32 mi
7:59/mi
1:13:19
4451
20K· 12.43 mi
7:50/mi
1:37:39
6740
Half· 13.10 mi
8:00/mi
1:43:01
27
25K· 15.53 mi
7:51/mi
2:02:08
5063
30K· 18.64 mi
8:00/mi
2:26:58
6946
35K· 21.75 mi
8:15/mi
2:52:33
8788
40K· 24.85 mi
8:25/mi
3:18:39
5875
Finish· 26.22 mi
8:18/mi
3:29:58
1418
Course Elevation
6172 ft
×14story building
503 ft climb · 613 ft descent

The Course

Half Splits

1st Half· via Half
1:43:017:52 /mi⚡ faster
2nd Half
1:46:578:10 /mi+3.8%
Positive split — 3.8% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:167:493.11 mi24:16
7:49
-
10K
48:317:493.10 mi24:15
7:49
0:00
15K
1:13:197:523.11 mi24:48
7:59
+0:10
20K
1:37:397:523.11 mi24:20
7:50
-0:09
Half(13.10 mi)
1:43:017:520.67 mi5:22
8:00
+0:10
25K
2:02:087:522.43 mi19:07
7:51
-0:09
30K
2:26:587:543.11 mi24:50
8:00
+0:09
35K
2:52:337:573.11 mi25:35
8:15
+0:15
40K
3:18:398:003.10 mi26:06
8:25
+0:10
Finish(26.22 mi)
3:29:588:011.37 mi11:19
8:18
-0:07
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:49 /mi

Average Pace

8:01 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:26:58

70% of race

Time at Steady Pace

1:03:00

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /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. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi11937256425641079221942194
10K3.10 mi11272+6652356+2082356+2081083022012201
15K3.11 mi11064+2082285+712285+711079221942194
20K3.11 mi11029+352283+22283+21115023072307
Half(13.10 mi)0.67 mi10993+362276+72276+71078921972197
25K2.43 mi10731+2622210+662210+66994020072007
30K3.11 mi10292+4392105+1052105+105908218081808
35K3.11 mi9936+3562064+412064+41913320182018
40K3.10 mi9770+1662084-202084-20942523832383
Finish(26.22 mi)1.37 mi9755+152098-142098-14958825412541

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×10story building
+49ft-125ft

Overall

10792

Females

2194

F18-39

2194

5K→10K

3.1 - 6.2 mi

Top 18%
×4story building
+50ft-81ft

Overall

10830

Females

2201

F18-39

2201

10K→15K

6.2 - 9.3 mi

Top 18%
×1story
+44ft-51ft

Overall

10792

Females

2194

F18-39

2194

15K→20K

9.3 - 12.4 mi

Top 19%
×3story building
+67ft-40ft

Overall

11150

Females

2307

F18-39

2307

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+8ft-27ft

Overall

10789

Females

2197

F18-39

2197

Half→25K

13.1 - 15.5 mi

Top 17%
×2story building
+50ft-63ft

Overall

9940

Females

2007

F18-39

2007

25K→30K

15.5 - 18.6 mi

Top 15%
×2story building
+69ft-46ft

Overall

9082

Females

1808

F18-39

1808

30K→35K

18.6 - 21.8 mi

Top 15%
×2story building
+87ft-88ft

Overall

9133

Females

2018

F18-39

2018

35K→40K

21.8 - 24.9 mi

Top 16%
×3story building
+58ft-75ft

Overall

9425

Females

2383

F18-39

2383

40K→Finish

24.9 - 26.2 mi

Top 16%
×1story
+14ft-18ft

Overall

9588

Females

2541

F18-39

2541

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#11937
5K10K
121786*+665
#11937 #11272
10K15K
107315*+208
#11272 #11064
15K20K
170205*+35
#11064 #11029
20KHalf
2359+36
#11029 #10993
Half25K
52314*+262
#10993 #10731
25K30K
49488+439
#10731 #10292
30K35K
114470*+356
#10292 #9936
35K40K
200366*+166
#9936 #9770
40KFinish
109124+15
#9770 #9755
TOTALS
9453127*+2182
#11937 #9755

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

Passing Visualized

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness 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