TCS London Marathon 2026 logo
LONDON MARATHON MASS 2026

Tassanai Kleebkaew

Bib: 17291 M TH

0:00
0:00
/ mi
Masters
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Overall
#0 / 59786
Gender (Male)
#0 / 33594
Masters (Masters Men)
#0 / 16876
Division (M50-54)
#0 / 3474
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
11:24/mi
35:23
↑ 49↓ 125
10K· 6.21 mi
11:34/mi
1:11:19
↑ 50↓ 81
15K· 9.32 mi
11:37/mi
1:47:23
↑ 44↓ 51
20K· 12.43 mi
11:14/mi
2:22:17
↑ 67↓ 40
Half· 13.10 mi
11:41/mi
2:30:07
↓ 27
25K· 15.53 mi
12:37/mi
3:00:49
↑ 50↓ 63
30K· 18.64 mi
13:29/mi
3:42:42
↑ 69↓ 46
35K· 21.75 mi
15:50/mi
4:31:52
↑ 87↓ 88
40K· 24.85 mi
15:43/mi
5:20:40
↑ 58↓ 75
Finish· 26.22 mi
15:33/mi
5:41:52
↑ 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
2:30:0711:28 /mi⚡ faster
2nd Half
3:11:4514:37 /mi+27.7%
Positive split — 27.7% 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
35:2311:243.11 mi35:23
11:24
-
10K
1:11:1911:293.10 mi35:56
11:34
+0:10
15K
1:47:2311:323.11 mi36:04
11:37
+0:03
20K
2:22:1711:273.11 mi34:54
11:14
-0:23
Half(13.10 mi)
2:30:0711:280.67 mi7:50
11:41
+0:27
25K
3:00:4911:392.43 mi30:42
12:37
+0:56
30K
3:42:4211:573.11 mi41:53
13:29
+0:52
35K
4:31:5212:313.11 mi49:10
15:50
+2:21
40K
5:20:4012:553.10 mi48:48
15:43
-0:07
Finish(26.22 mi)
5:41:5213:031.37 mi21:12
15:33
-0:10
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

11:14 /mi

Average Pace

13:03 /mi

Slowest Pace

15:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:30:07

44% of race

Time at Steady Pace

1:12:35

21% of race

Time at Slower Pace

1:59:10

35% of race

Average Pace: 13:02 /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. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi510723106831068460952906129061
10K3.10 mi50240+83230756+31230756+312496053047730477
15K3.11 mi48743+149730178+57830178+578460952906129061
20K3.11 mi47212+153129489+68929489+689434342765727657
Half(13.10 mi)0.67 mi46984+22829367+12229367+122438512758427584
25K2.43 mi46729+25529163+20429163+204458232828228282
30K3.11 mi46704+2529011+15229011+152467522833628336
35K3.11 mi48024-132029427-41629427-416533493083830838
40K3.10 mi49235-121129801-37429801-374546523136331363
Finish(26.22 mi)1.37 mi49740-50529957-15629957-156556053177631776

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×10
+49ft-125ft

Overall

46095

Males

29061

M50-54

29061

5K→10K

3.1 - 6.2 mi

Top 83%
×4
+50ft-81ft

Overall

49605

Males

30477

M50-54

30477

10K→15K

6.2 - 9.3 mi

Top 77%
+44ft-51ft

Overall

46095

Males

29061

M50-54

29061

15K→20K

9.3 - 12.4 mi

Top 73%
×3
+67ft-40ft

Overall

43434

Males

27657

M50-54

27657

20K→Half

12.4 - 13.1 mi

Top 73%
×2
+8ft-27ft

Overall

43851

Males

27584

M50-54

27584

Half→25K

13.1 - 15.5 mi

Top 77%
×2
+50ft-63ft

Overall

45823

Males

28282

M50-54

28282

25K→30K

15.5 - 18.6 mi

Top 78%
×2
+69ft-46ft

Overall

46752

Males

28336

M50-54

28336

30K→35K

18.6 - 21.8 mi

Top 89%
×2
+87ft-88ft

Overall

53349

Males

30838

M50-54

30838

35K→40K

21.8 - 24.9 mi

Top 91%
×3
+58ft-75ft

Overall

54652

Males

31363

M50-54

31363

40K→Finish

24.9 - 26.2 mi

Top 93%
+14ft-18ft

Overall

55605

Males

31776

M50-54

31776

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#51072
5K → 10K
3231155+832
#51072 → #50240
10K → 15K
921589+1497
#50240 → #48743
15K → 20K
351566+1531
#48743 → #47212
20K → Half
26254+228
#47212 → #46984
Half → 25K
377632+255
#46984 → #46729
25K → 30K
494519+25
#46729 → #46704
30K → 35K
1435115-1320
#46704 → #48024
35K → 40K
128675-1211
#48024 → #49235
40K → Finish
54944-505
#49235 → #49740
TOTALS
46175949+1332
#51072 → #49740

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

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Mika Timing