TCS London Marathon 2026 logo
LONDON MARATHON MASS 2026

Rebecca Southerland

Bib: 8279 F US

0:00
0:00
/ mi
Masters
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Overall
#0 / 59786
Top 22%
Gender (Female)
#0 / 26115
Top 13%
Masters (Masters Women)
#0 / 11371
Top 11%
Division (F40-44)
#0 / 3355
Top 15%
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
8:08/mi
25:15
↑ 49↓ 125
10K· 6.21 mi
8:13/mi
50:45
↑ 50↓ 81
15K· 9.32 mi
8:21/mi
1:16:41
↑ 44↓ 51
20K· 12.43 mi
8:05/mi
1:41:46
↑ 67↓ 40
Half· 13.10 mi
8:32/mi
1:47:29
↓ 27
25K· 15.53 mi
8:18/mi
2:07:40
↑ 50↓ 63
30K· 18.64 mi
8:44/mi
2:34:47
↑ 69↓ 46
35K· 21.75 mi
9:00/mi
3:02:42
↑ 87↓ 88
40K· 24.85 mi
8:51/mi
3:30:11
↑ 58↓ 75
Finish· 26.22 mi
8:18/mi
3:41:30
↑ 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
1:47:298:13 /mi⚡ faster
2nd Half
1:54:018:42 /mi+6.1%
Positive split — 6.1% 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
25:158:083.11 mi25:15
8:08
-
10K
50:458:113.10 mi25:30
8:13
+0:05
15K
1:16:418:143.11 mi25:56
8:21
+0:08
20K
1:41:468:123.11 mi25:05
8:05
-0:16
Half(13.10 mi)
1:47:298:130.67 mi5:43
8:32
+0:27
25K
2:07:408:142.43 mi20:11
8:18
-0:14
30K
2:34:478:193.11 mi27:07
8:44
+0:26
35K
3:02:428:253.11 mi27:55
9:00
+0:16
40K
3:30:118:283.10 mi27:29
8:51
-0:09
Finish(26.22 mi)
3:41:308:281.37 mi11:19
8:18
-0:33
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:05 /mi

Average Pace

8:27 /mi

Slowest Pace

9:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:13:35

87% of race

Time at Steady Pace

27:55

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:27 /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. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi15655375537551480834473447
10K3.10 mi15538+1173750+53750+51551237253725
15K3.11 mi15231+3073628+1223628+1221480834473447
20K3.11 mi14839+3923502+1263502+1261385731623162
Half(13.10 mi)0.67 mi14869-303521-193521-191586938673867
25K2.43 mi14627+2423458+633458+631400033223322
30K3.11 mi14505+1223461-33461-31502038163816
35K3.11 mi14235+2703499-383499-381425138923892
40K3.10 mi13692+5433458+413458+411236935243524
Finish(26.22 mi)1.37 mi13297+3953368+903368+90957625292529

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×10
+49ft-125ft

Overall

14808

Females

3447

F40-44

3447

5K→10K

3.1 - 6.2 mi

Top 26%
×4
+50ft-81ft

Overall

15512

Females

3725

F40-44

3725

10K→15K

6.2 - 9.3 mi

Top 25%
+44ft-51ft

Overall

14808

Females

3447

F40-44

3447

15K→20K

9.3 - 12.4 mi

Top 23%
×3
+67ft-40ft

Overall

13857

Females

3162

F40-44

3162

20K→Half

12.4 - 13.1 mi

Top 27%
×2
+8ft-27ft

Overall

15869

Females

3867

F40-44

3867

Half→25K

13.1 - 15.5 mi

Top 23%
×2
+50ft-63ft

Overall

14000

Females

3322

F40-44

3322

25K→30K

15.5 - 18.6 mi

Top 25%
×2
+69ft-46ft

Overall

15020

Females

3816

F40-44

3816

30K→35K

18.6 - 21.8 mi

Top 24%
×2
+87ft-88ft

Overall

14251

Females

3892

F40-44

3892

35K→40K

21.8 - 24.9 mi

Top 21%
×3
+58ft-75ft

Overall

12369

Females

3524

F40-44

3524

40K→Finish

24.9 - 26.2 mi

Top 16%
+14ft-18ft

Overall

9576

Females

2529

F40-44

2529

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#15655
5K → 10K
200317*+117
#15655 → #15538
10K → 15K
164471*+307
#15538 → #15231
15K → 20K
72464*+392
#15231 → #14839
20K → Half
8454-30
#14839 → #14869
Half → 25K
95337*+242
#14869 → #14627
25K → 30K
307429+122
#14627 → #14505
30K → 35K
200470*+270
#14505 → #14235
35K → 40K
135678*+543
#14235 → #13692
40K → Finish
16411*+395
#13692 → #13297
TOTALS
12733631*+2358
#15655 → #13297

* 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