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LONDON MARATHON MASS 2026

Jim Mattson

Bib: 48331•M

Masters
TCS London Marathon 2026 logo
0:00
0:00
/ mi
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Overall
#0 / 59786
Top 29%
Gender (Male)
#0 / 33594
Top 38%
Masters (Masters Men)
#0 / 16876
Top 34%
Age Group (M45-49)
#0 / 4167
Top 39%
Race Day Weather
56°/46°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
24:55
Rank: #14379
Start → 5K
24:55 | 8:02/mi
10K· 6.21 mi
50:06
Rank: #14299 (+80)
5K → 10K
25:11 | 8:07/mi
15K· 9.32 mi
1:15:52
Rank: #14244 (+55)
10K → 15K
25:46 | 8:18/mi
20K· 12.43 mi
1:41:01
Rank: #14138 (+106)
15K → 20K
25:09 | 8:06/mi
Half· 13.10 mi
1:46:36
Rank: #14118 (+20)
20K → Half
5:35 | 8:20/mi
25K· 15.53 mi
2:06:40
Rank: #13929 (+189)
Half → 25K
20:04 | 8:15/mi
30K· 18.64 mi
2:34:02
Rank: #14125 (-196)
25K → 30K
27:22 | 8:49/mi
35K· 21.75 mi
3:04:05
Rank: #14821 (-696)
30K → 35K
30:03 | 9:41/mi
40K· 24.85 mi
3:39:29
Rank: #17141 (-2320)
35K → 40K
35:24 | 11:24/mi
Finish· 26.22 mi
3:53:12
Rank: #17435 (-294)
40K → Finish
13:43 | 10:04/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:46:36
Pace8:09 /mi
2nd Half
Distance13.12 mi
Time2:06:36
Pace9:39 /mi
📊Positive Split: 18.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:16:5624:558:0224:55
8:02
-
10K
6.21 mi10:42:0750:068:0425:11
8:07
+0:05
15K
9.32 mi11:07:531:15:528:0925:46
8:18
+0:11
20K
12.43 mi11:33:021:41:018:0825:09
8:06
-0:12
Half
13.10 mi11:38:371:46:368:095:35
8:20
+0:14
25K
15.53 mi11:58:412:06:408:1020:04
8:15
-0:05
30K
18.64 mi12:26:032:34:028:1627:22
8:49
+0:34
35K
21.75 mi12:56:063:04:058:2830:03
9:41
+0:52
40K
24.85 mi13:31:303:39:298:5035:24
11:24
+1:43
Finish
26.22 mi13:45:133:53:128:5513:43
10:04
-1:20

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:02 /mi

Average Pace

8:54 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:34:02

66% of race

Time at Slower Pace

1:19:10

34% of race

Average Pace: 8:54 /mi

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

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:16:5624:558:0224:55
8:02
#14379
10K
6.21 mi10:42:0750:068:0425:11
8:07
#14299
15K
9.32 mi11:07:531:15:528:0925:46
8:18
#14244
20K
12.43 mi11:33:021:41:018:0825:09
8:06
#14138
Half
13.10 mi11:38:371:46:368:095:35
8:20
#14118
25K
15.53 mi11:58:412:06:408:1020:04
8:15
#13929
30K
18.64 mi12:26:032:34:028:1627:22
8:49
#14125
35K
21.75 mi12:56:063:04:058:2830:03
9:41
#14821
40K
24.85 mi13:31:303:39:298:5035:24
11:24
#17141
Finish
26.22 mi13:45:133:53:128:5513:43
10:04
#17435
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi14379110221102214281(Top 24%)10983(Top 33%)10983(Top 264%)
10K6.21 mi3.10 mi14299+8010942+8010942+8014264(Top 24%)10922(Top 33%)10922(Top 262%)
15K9.32 mi3.11 mi14244+5510921+2110921+2114281(Top 24%)10983(Top 33%)10983(Top 264%)
20K12.43 mi3.11 mi14138+10610853+6810853+6814096(Top 24%)10849(Top 32%)10849(Top 260%)
Half13.10 mi0.67 mi14118+2010836+1710836+1713976(Top 23%)10737(Top 32%)10737(Top 258%)
25K15.53 mi2.43 mi13929+18910695+14110695+14113561(Top 23%)10382(Top 31%)10382(Top 249%)
30K18.64 mi3.11 mi14125-19610777-8210777-8215687(Top 26%)11608(Top 35%)11608(Top 279%)
35K21.75 mi3.11 mi14821-69611117-34011117-34019584(Top 33%)13634(Top 41%)13634(Top 327%)
40K24.85 mi3.10 mi17141-232012505-138812505-138830876(Top 52%)19447(Top 58%)19447(Top 467%)
Finish26.22 mi1.37 mi17435-29412643-13812643-13823485(Top 39%)15399(Top 46%)15399(Top 370%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×10stories
+49ft-125ft

Overall

14281

Males

10983

M45-49

10983

5K→10K

3.1 - 6.2 mi

Top 24%
×4stories
+50ft-81ft

Overall

14264

Males

10922

M45-49

10922

10K→15K

6.2 - 9.3 mi

Top 24%
×1story
+44ft-51ft

Overall

14281

Males

10983

M45-49

10983

15K→20K

9.3 - 12.4 mi

Top 24%
×3stories
+67ft-40ft

Overall

14096

Males

10849

M45-49

10849

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+8ft-27ft

Overall

13976

Males

10737

M45-49

10737

Half→25K

13.1 - 15.5 mi

Top 23%
×2stories
+50ft-63ft

Overall

13561

Males

10382

M45-49

10382

25K→30K

15.5 - 18.6 mi

Top 26%
×2stories
+69ft-46ft

Overall

15687

Males

11608

M45-49

11608

30K→35K

18.6 - 21.8 mi

Top 33%
×2stories
+87ft-88ft

Overall

19584

Males

13634

M45-49

13634

35K→40K

21.8 - 24.9 mi

Top 52%
×3stories
+58ft-75ft

Overall

30876

Males

19447

M45-49

19447

40K→Finish

24.9 - 26.2 mi

Top 39%
×1story
+14ft-18ft

Overall

23485

Males

15399

M45-49

15399

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1774*
Passed By
1574
Net Change
-3056
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14379
5K → 10K280*200+80#14379#14299
10K → 15K255*200+55#14299#14244
15K → 20K288*182+106#14244#14138
20K → Half7555+20#14138#14118
Half → 25K326*137+189#14118#13929
25K → 30K200200-196#13929#14125
30K → 35K200200-696#14125#14821
35K → 40K60200-2320#14821#17141
40K → Finish90200-294#17141#17435
TOTALS1774*1574-3056

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

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

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