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LONDON MARATHON MASS 2026

April Irwin

Bib: 51172•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 59786
Top 26%
Gender (Female)
#0 / 26115
Top 16%
Masters (Masters Women)
#0 / 11371
Top 14%
Division (F45-49)
#0 / 2995
Top 16%
Race Day Weather
56°/46°F
overcast clouds

⏱️ Race Timeline

Course Elevation
6–172 ft
≈
×14story building
•▲ 503 ft climb · ▼ 613 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:23/mi
26:00
↑ 49↓ 1250.5%
10K· 6.21 mi
9:05/mi
54:13
↑ 50↓ 810.2%
15K· 9.32 mi
8:46/mi
1:21:26
↑ 44↓ 51
20K· 12.43 mi
8:26/mi
1:47:37
↑ 67↓ 400.2%
Half· 13.10 mi
8:29/mi
1:53:18
↓ 270.6%
25K· 15.53 mi
8:21/mi
2:13:38
↑ 50↓ 630.1%
30K· 18.64 mi
8:37/mi
2:40:24
↑ 69↓ 460.1%
35K· 21.75 mi
8:49/mi
3:07:47
↑ 87↓ 88
40K· 24.85 mi
9:04/mi
3:35:57
↑ 58↓ 750.1%
Finish· 26.22 mi
9:07/mi
3:48:22
↑ 14↓ 18

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time1:53:18
Pace8:39 /mi
2nd Half
Distance13.12 mi
Time1:55:04
Pace8:47 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:33:2126:008:2326:00
8:23
-
10K
6.21 mi11:01:3454:138:4428:13
9:05
+0:42
15K
9.32 mi11:28:471:21:268:4527:13
8:46
-0:19
20K
12.43 mi11:54:581:47:378:4026:11
8:26
-0:20
Half
13.10 mi12:00:391:53:188:395:41
8:29
+0:03
25K
15.53 mi12:20:592:13:388:3720:20
8:21
-0:08
30K
18.64 mi12:47:452:40:248:3726:46
8:37
+0:16
35K
21.75 mi13:15:083:07:478:3927:23
8:49
+0:12
40K
24.85 mi13:43:183:35:578:4228:10
9:04
+0:15
Finish
26.22 mi13:55:433:48:228:4312:25
9:07
+0:03

Checkpoints & Pacing

📈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

8:21 /mi

Average Pace

8:43 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12:11

58% of race

Time at Steady Pace

1:36:11

42% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:43 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:33:2126:008:2326:00
8:23
#18312
10K
6.21 mi11:01:3454:138:4428:13
9:05
#21791
15K
9.32 mi11:28:471:21:268:4527:13
8:46
#20591
20K
12.43 mi11:54:581:47:378:4026:11
8:26
#19568
Half
13.10 mi12:00:391:53:188:395:41
8:29
#19307
25K
15.53 mi12:20:592:13:388:3720:20
8:21
#18355
30K
18.64 mi12:47:452:40:248:3726:46
8:37
#17395
35K
21.75 mi13:15:083:07:478:3927:23
8:49
#16399
40K
24.85 mi13:43:183:35:578:4228:10
9:04
#15791
Finish
26.22 mi13:55:433:48:228:4312:25
9:07
#15692
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi183124608460818748(Top 31%)4748(Top 18%)4748(Top 159%)
10K6.21 mi3.10 mi21791-34795807-11995807-119925730(Top 43%)7240(Top 28%)7240(Top 242%)
15K9.32 mi3.11 mi20591+12005390+4175390+41718748(Top 31%)4748(Top 18%)4748(Top 159%)
20K12.43 mi3.11 mi19568+10235055+3355055+33517299(Top 29%)4328(Top 17%)4328(Top 145%)
Half13.10 mi0.67 mi19307+2614988+674988+6715472(Top 26%)3766(Top 14%)3766(Top 126%)
25K15.53 mi2.43 mi18355+9524705+2834705+28314554(Top 24%)3516(Top 13%)3516(Top 117%)
30K18.64 mi3.11 mi17395+9604453+2524453+25214135(Top 24%)3518(Top 13%)3518(Top 117%)
35K21.75 mi3.11 mi16399+9964245+2084245+20813023(Top 22%)3468(Top 13%)3468(Top 116%)
40K24.85 mi3.10 mi15791+6084169+764169+7614041(Top 23%)4208(Top 16%)4208(Top 141%)
Finish26.22 mi1.37 mi15692+994189-204189-2015871(Top 27%)4998(Top 19%)4998(Top 167%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×10story building
+49ft-125ft

Overall

18748

Females

4748

F45-49

4748

5K→10K

3.1 - 6.2 mi

Top 43%
×4story building
+50ft-81ft

Overall

25730

Females

7240

F45-49

7240

10K→15K

6.2 - 9.3 mi

Top 31%
×1story
+44ft-51ft

Overall

18748

Females

4748

F45-49

4748

15K→20K

9.3 - 12.4 mi

Top 29%
×3story building
+67ft-40ft

Overall

17299

Females

4328

F45-49

4328

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+8ft-27ft

Overall

15472

Females

3766

F45-49

3766

Half→25K

13.1 - 15.5 mi

Top 24%
×2story building
+50ft-63ft

Overall

14554

Females

3516

F45-49

3516

25K→30K

15.5 - 18.6 mi

Top 24%
×2story building
+69ft-46ft

Overall

14135

Females

3518

F45-49

3518

30K→35K

18.6 - 21.8 mi

Top 22%
×2story building
+87ft-88ft

Overall

13023

Females

3468

F45-49

3468

35K→40K

21.8 - 24.9 mi

Top 23%
×3story building
+58ft-75ft

Overall

14041

Females

4208

F45-49

4208

40K→Finish

24.9 - 26.2 mi

Top 27%
×1story
+14ft-18ft

Overall

15871

Females

4998

F45-49

4998

Passing Analysis

Category:
Athletes Passed
6532*
Passed By
591
Net Change
+2620
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18312
5K → 10K42200-3479#18312#21791
10K → 15K1240*40+1200#21791#20591
15K → 20K1036*13+1023#20591#19568
20K → Half263*2+261#19568#19307
Half → 25K958*6+952#19307#18355
25K → 30K98121+960#18355#17395
30K → 35K1042*46+996#17395#16399
35K → 40K759*151+608#16399#15791
40K → Finish211*112+99#15791#15692
TOTALS6532*591+2620

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

📊

Passing Visuals

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