Gareth Thomas

Bib: 45603 M GB

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 59786
Top 19%
Gender (Male)
#0 / 33594
Top 26%
Division (M18-39)
#0 / 16712
Top 29%
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
8:10/mi
25:20
49125
10K· 6.21 mi
8:03/mi
50:18
5081
15K· 9.32 mi
8:14/mi
1:15:52
4451
20K· 12.43 mi
8:04/mi
1:40:53
6740
Half· 13.10 mi
8:17/mi
1:46:26
27
25K· 15.53 mi
8:08/mi
2:06:14
5063
30K· 18.64 mi
8:14/mi
2:31:48
6946
35K· 21.75 mi
8:26/mi
2:58:00
8788
40K· 24.85 mi
8:27/mi
3:24:15
5875
Finish· 26.22 mi
8:09/mi
3:35:21
1418
Course Elevation
503ft
Total climb
166ft
Range
6 to 172 ft
613ft
Total descent
About the height of the Statue of Liberty

See every mile of your race

Claim this result to add your watch's GPX and unlock per-mile pace, heart rate, and grade — mile by mile on this timeline.

Works with Garmin, Apple Watch, Strava, COROS, Suunto & more.

The Course

Half Splits

1st Half· via Half
1:46:268:08 /mi⚡ faster
2nd Half
1:48:558:19 /mi+2.3%
Positive split — 2.3% slower in the second half
AI Race Performance Report

Gareth's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

Free account · no payment

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
25:208:103.11 mi25:20
8:10
-
10K
50:188:063.10 mi24:58
8:03
-0:07
15K
1:15:528:093.11 mi25:34
8:14
+0:11
20K
1:40:538:083.11 mi25:01
8:04
-0:10
Half(13.10 mi)
1:46:268:080.67 mi5:33
8:17
+0:13
25K
2:06:148:082.43 mi19:48
8:08
-0:09
30K
2:31:488:093.11 mi25:34
8:14
+0:06
35K
2:58:008:123.11 mi26:12
8:26
+0:12
40K
3:24:158:143.10 mi26:15
8:27
+0:01
Finish(26.22 mi)
3:35:218:141.37 mi11:06
8:09
-0:18
Trend:
Faster pace
Steady pace
Slower pace
More below

See the rest of Gareth's race

Checkpoint splits, rankings, passing analysis and qualifying. One free sign-in reveals them here — and on every race you look up.

Checkpoints & Pacing

Pace Line

Fastest Pace

8:03 /mi

Average Pace

8:13 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:35:21

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi158981203712037135471049610496
10K3.10 mi14662+123611182+85511182+855133541027810278
15K3.11 mi14241+42110918+26410918+264135471049610496
20K3.11 mi14018+22310768+15010768+150135981050010500
Half(13.10 mi)0.67 mi13960+5810730+3810730+38133711031210312
25K2.43 mi13606+35410468+26210468+2621253896959695
30K3.11 mi12913+6939943+5259943+5251100085568556
35K3.11 mi12243+6709408+5359408+5351038579137913
40K3.10 mi11646+5978898+5108898+510972272097209
Finish(26.22 mi)1.37 mi11357+2898663+2358663+235851163746374

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
131 ft55 ft
49ft125ft
117 ft

Overall

13547

Males

10496

M18-39

10496

5K→10K

3.1 - 6.2 mi

Top 22%
55 ft24 ft
50ft81ft
45 ft

Overall

13354

Males

10278

M18-39

10278

10K→15K

6.2 - 9.3 mi

Top 23%
24 ft18 ft
44ft51ft
17 ft

Overall

13547

Males

10496

M18-39

10496

15K→20K

9.3 - 12.4 mi

Top 23%
18 ft45 ft
67ft40ft
38 ft

Overall

13598

Males

10500

M18-39

10500

20K→Half

12.4 - 13.1 mi

Top 22%
45 ft26 ft
8ft27ft
20 ft

Overall

13371

Males

10312

M18-39

10312

Half→25K

13.1 - 15.5 mi

Top 21%
25 ft12 ft
50ft63ft
20 ft

Overall

12538

Males

9695

M18-39

9695

25K→30K

15.5 - 18.6 mi

Top 18%
12 ft35 ft
69ft46ft
28 ft

Overall

11000

Males

8556

M18-39

8556

30K→35K

18.6 - 21.8 mi

Top 17%
35 ft34 ft
87ft88ft
23 ft

Overall

10385

Males

7913

M18-39

7913

35K→40K

21.8 - 24.9 mi

Top 16%
34 ft17 ft
58ft75ft
31 ft

Overall

9722

Males

7209

M18-39

7209

40K→Finish

24.9 - 26.2 mi

Top 14%
17 ft13 ft
14ft18ft
13 ft

Overall

8511

Males

6374

M18-39

6374

Passing Analysis

No position changes recorded for this athlete.

Public Race Data

London Marathon Events

London Marathon Events

Mika Timing

Mika Timing