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LONDON MARATHON MASS 2026

Isabel Curtis Barnes

Bib: 33503•F

0:00
0:00
/ mi
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Overall
#0 / 59786
Gender (Female)
#0 / 26115
Division (F18-39)
#0 / 14744
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
10:01/mi
31:05
↑ 49↓ 1250.5%
10K· 6.21 mi
10:46/mi
1:04:32
↑ 50↓ 810.2%
15K· 9.32 mi
10:19/mi
1:36:35
↑ 44↓ 51
20K· 12.43 mi
10:13/mi
2:08:19
↑ 67↓ 400.2%
Half· 13.10 mi
10:46/mi
2:15:32
↓ 270.6%
25K· 15.53 mi
12:56/mi
2:47:02
↑ 50↓ 630.1%
30K· 18.64 mi
11:20/mi
3:22:14
↑ 69↓ 460.1%
35K· 21.75 mi
13:46/mi
4:04:59
↑ 87↓ 88
40K· 24.85 mi
13:18/mi
4:46:17
↑ 58↓ 750.1%
Finish· 26.22 mi
12:13/mi
5:02:56
↑ 14↓ 18

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time2:15:32
Pace10:21 /mi
2nd Half
Distance13.12 mi
Time2:47:24
Pace12:46 /mi
📊Positive Split: 23.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:1331:0510:0131:05
10:01
-
10K
6.21 mi11:59:401:04:3210:2433:27
10:46
+0:45
15K
9.32 mi12:31:431:36:3510:2232:03
10:19
-0:27
20K
12.43 mi13:03:272:08:1910:2031:44
10:13
-0:06
Half
13.10 mi13:10:402:15:3210:217:13
10:46
+0:33
25K
15.53 mi13:42:102:47:0210:4631:30
12:56
+2:10
30K
18.64 mi14:17:223:22:1410:5135:12
11:20
-1:36
35K
21.75 mi15:00:074:04:5911:1642:45
13:46
+2:26
40K
24.85 mi15:41:254:46:1711:3241:18
13:18
-0:28
Finish
26.22 mi15:58:045:02:5611:3416:39
12:13
-1:05

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

10:01 /mi

Average Pace

11:34 /mi

Slowest Pace

13:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:52

31% of race

Time at Steady Pace

1:15:52

25% of race

Time at Slower Pace

2:12:12

44% of race

Average Pace: 11:33 /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 mi11:26:1331:0510:0131:05
10:01
#38727
10K
6.21 mi11:59:401:04:3210:2433:27
10:46
#41366
15K
9.32 mi12:31:431:36:3510:2232:03
10:19
#39203
20K
12.43 mi13:03:272:08:1910:2031:44
10:13
#38083
Half
13.10 mi13:10:402:15:3210:217:13
10:46
#37989
25K
15.53 mi13:42:102:47:0210:4631:30
12:56
#40195
30K
18.64 mi14:17:223:22:1410:5135:12
11:20
#39010
35K
21.75 mi15:00:074:04:5911:1642:45
13:46
#40158
40K
24.85 mi15:41:254:46:1711:3241:18
13:18
#40832
Finish
26.22 mi15:58:045:02:5611:3416:39
12:13
#40911
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi38727127631276335706(Top 60%)11372(Top 44%)11372(Top 77%)
10K6.21 mi3.10 mi41366-263914140-137714140-137743704(Top 73%)15493(Top 59%)15493(Top 105%)
15K9.32 mi3.11 mi39203+216313042+109813042+109835706(Top 60%)11372(Top 44%)11372(Top 77%)
20K12.43 mi3.11 mi38083+112012555+48712555+48735510(Top 59%)11540(Top 44%)11540(Top 78%)
Half13.10 mi0.67 mi37989+9412542+1312542+1337119(Top 62%)12541(Top 48%)12541(Top 85%)
25K15.53 mi2.43 mi40195-220613815-127313815-127347255(Top 79%)18330(Top 70%)18330(Top 124%)
30K18.64 mi3.11 mi39010+118513373+44213373+44234894(Top 58%)12138(Top 46%)12138(Top 82%)
35K21.75 mi3.11 mi40158-114814213-84014213-84044950(Top 75%)17887(Top 68%)17887(Top 121%)
40K24.85 mi3.10 mi40832-67414753-54014753-54044163(Top 74%)17755(Top 68%)17755(Top 120%)
Finish26.22 mi1.37 mi40911-7914844-9114844-9141329(Top 69%)16263(Top 62%)16263(Top 110%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×10story building
+49ft-125ft

Overall

35706

Females

11372

F18-39

11372

5K→10K

3.1 - 6.2 mi

Top 73%
×4story building
+50ft-81ft

Overall

43704

Females

15493

F18-39

15493

10K→15K

6.2 - 9.3 mi

Top 60%
×1story
+44ft-51ft

Overall

35706

Females

11372

F18-39

11372

15K→20K

9.3 - 12.4 mi

Top 59%
×3story building
+67ft-40ft

Overall

35510

Females

11540

F18-39

11540

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+8ft-27ft

Overall

37119

Females

12541

F18-39

12541

Half→25K

13.1 - 15.5 mi

Top 79%
×2story building
+50ft-63ft

Overall

47255

Females

18330

F18-39

18330

25K→30K

15.5 - 18.6 mi

Top 58%
×2story building
+69ft-46ft

Overall

34894

Females

12138

F18-39

12138

30K→35K

18.6 - 21.8 mi

Top 75%
×2story building
+87ft-88ft

Overall

44950

Females

17887

F18-39

17887

35K→40K

21.8 - 24.9 mi

Top 74%
×3story building
+58ft-75ft

Overall

44163

Females

17755

F18-39

17755

40K→Finish

24.9 - 26.2 mi

Top 69%
×1story
+14ft-18ft

Overall

41329

Females

16263

F18-39

16263

Passing Analysis

Category:
Athletes Passed
5637*
Passed By
1257
Net Change
-2184
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#38727
5K → 10K200200-2639#38727#41366
10K → 15K2183*20+2163#41366#39203
15K → 20K1174*54+1120#39203#38083
20K → Half16672+94#38083#37989
Half → 25K81200-2206#37989#40195
25K → 30K1296111+1185#40195#39010
30K → 35K200200-1148#39010#40158
35K → 40K200200-674#40158#40832
40K → Finish137200-79#40832#40911
TOTALS5637*1257-2184

* 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