TCS London Marathon 2026 logo
LONDON MARATHON MASS 2026

Alexandra Buchan

Bib: 20368 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
5K· 3.11 mi
10:47/mi
33:30
↑ 49↓ 125
10K· 6.21 mi
10:49/mi
1:07:05
↑ 50↓ 81
15K· 9.32 mi
11:00/mi
1:41:15
↑ 44↓ 51
20K· 12.43 mi
10:50/mi
2:14:52
↑ 67↓ 40
Half· 13.10 mi
11:16/mi
2:22:25
↓ 27
25K· 15.53 mi
11:20/mi
2:50:00
↑ 50↓ 63
30K· 18.64 mi
12:32/mi
3:28:54
↑ 69↓ 46
35K· 21.75 mi
13:27/mi
4:10:41
↑ 87↓ 88
40K· 24.85 mi
12:21/mi
4:49:01
↑ 58↓ 75
Finish· 26.22 mi
11:48/mi
5:05:06
↑ 14↓ 18
Course Elevation
503ft
Total climb
166ft
Range
6 to 172 ft
×14
613ft
Total descent

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The Course

Half Splits

1st Half· via Half
2:22:2510:53 /mi⚡ faster
2nd Half
2:42:4112:24 /mi+14.2%
Positive split — 14.2% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
33:3010:473.11 mi33:30
10:47
-
10K
1:07:0510:483.10 mi33:35
10:49
+0:02
15K
1:41:1510:523.11 mi34:10
11:00
+0:11
20K
2:14:5210:523.11 mi33:37
10:50
-0:10
Half(13.10 mi)
2:22:2510:530.67 mi7:33
11:16
+0:26
25K
2:50:0010:572.43 mi27:35
11:20
+0:04
30K
3:28:5411:133.11 mi38:54
12:32
+1:12
35K
4:10:4111:323.11 mi41:47
13:27
+0:55
40K
4:49:0111:383.10 mi38:20
12:21
-1:06
Finish(26.22 mi)
5:05:0611:391.37 mi16:05
11:48
-0:33
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:47 /mi

Average Pace

11:39 /mi

Slowest Pace

13:27 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:40:42

33% of race

Time at Steady Pace

1:09:18

23% of race

Time at Slower Pace

2:15:06

44% of race

Average Pace: 11:38 /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 mi464751708817088416341442914429
10K3.10 mi45108+136716311+77716311+777441021574115741
15K3.11 mi43739+136915519+79215519+792416341442914429
20K3.11 mi42682+105715004+51515004+515403961402214022
Half(13.10 mi)0.67 mi42545+13714960+4414960+44409451458414584
25K2.43 mi41692+85314596+36414596+364391511381913819
30K3.11 mi41705-1314817-22114817-221419471575515755
35K3.11 mi42058-35315224-40715224-407432481704617046
40K3.10 mi41621+43715162+6215162+62378671472014720
Finish(26.22 mi)1.37 mi41432+18915122+4015122+40381921479514795

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×10
+49ft-125ft

Overall

41634

Females

14429

F18-39

14429

5K→10K

3.1 - 6.2 mi

Top 74%
×4
+50ft-81ft

Overall

44102

Females

15741

F18-39

15741

10K→15K

6.2 - 9.3 mi

Top 70%
+44ft-51ft

Overall

41634

Females

14429

F18-39

14429

15K→20K

9.3 - 12.4 mi

Top 68%
×3
+67ft-40ft

Overall

40396

Females

14022

F18-39

14022

20K→Half

12.4 - 13.1 mi

Top 68%
×2
+8ft-27ft

Overall

40945

Females

14584

F18-39

14584

Half→25K

13.1 - 15.5 mi

Top 65%
×2
+50ft-63ft

Overall

39151

Females

13819

F18-39

13819

25K→30K

15.5 - 18.6 mi

Top 70%
×2
+69ft-46ft

Overall

41947

Females

15755

F18-39

15755

30K→35K

18.6 - 21.8 mi

Top 72%
×2
+87ft-88ft

Overall

43248

Females

17046

F18-39

17046

35K→40K

21.8 - 24.9 mi

Top 63%
×3
+58ft-75ft

Overall

37867

Females

14720

F18-39

14720

40K→Finish

24.9 - 26.2 mi

Top 64%
+14ft-18ft

Overall

38192

Females

14795

F18-39

14795

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#46475
5K → 10K
2521619+1367
#46475 → #45108
10K → 15K
1021471+1369
#45108 → #43739
15K → 20K
981155+1057
#43739 → #42682
20K → Half
64201+137
#42682 → #42545
Half → 25K
112965+853
#42545 → #41692
25K → 30K
596583-13
#41692 → #41705
30K → 35K
778425-353
#41705 → #42058
35K → 40K
202639+437
#42058 → #41621
40K → Finish
80269+189
#41621 → #41432
TOTALS
22847327+5043
#46475 → #41432

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