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LONDON MARATHON MASS 2026

Chelsea Gregory

Bib: 57728•F

0:00
0:00
/ mi
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Overall
#0 / 59786
Gender (Female)
#0 / 26115
Top 39%
Division (F18-39)
#0 / 14744
Top 40%
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
9:30/mi
29:30
↑ 49↓ 1250.5%
10K· 6.21 mi
9:43/mi
59:41
↑ 50↓ 810.2%
15K· 9.32 mi
9:50/mi
1:30:12
↑ 44↓ 51
20K· 12.43 mi
9:45/mi
2:00:28
↑ 67↓ 400.2%
Half· 13.10 mi
10:17/mi
2:07:22
↓ 270.6%
25K· 15.53 mi
10:09/mi
2:32:05
↑ 50↓ 630.1%
30K· 18.64 mi
10:54/mi
3:05:54
↑ 69↓ 460.1%
35K· 21.75 mi
11:46/mi
3:42:25
↑ 87↓ 88
40K· 24.85 mi
11:18/mi
4:17:29
↑ 58↓ 750.1%
Finish· 26.22 mi
10:23/mi
4:31:38
↑ 14↓ 18

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time2:07:22
Pace9:44 /mi
2nd Half
Distance13.12 mi
Time2:24:16
Pace11:00 /mi
📊Positive Split: 13.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:0529:309:3029:30
9:30
-
10K
6.21 mi11:36:1659:419:3730:11
9:43
+0:13
15K
9.32 mi12:06:471:30:129:4130:31
9:50
+0:07
20K
12.43 mi12:37:032:00:289:4230:16
9:45
-0:05
Half
13.10 mi12:43:572:07:229:446:54
10:17
+0:32
25K
15.53 mi13:08:402:32:059:4824:43
10:09
-0:08
30K
18.64 mi13:42:293:05:549:5933:49
10:54
+0:45
35K
21.75 mi14:19:003:42:2510:1436:31
11:46
+0:52
40K
24.85 mi14:54:044:17:2910:2235:04
11:18
-0:28
Finish
26.22 mi15:08:134:31:3810:2314:09
10:23
-0:55

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

9:30 /mi

Average Pace

10:22 /mi

Slowest Pace

11:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:28

44% of race

Time at Steady Pace

45:46

17% of race

Time at Slower Pace

1:45:24

39% of race

Average Pace: 10:22 /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 mi11:06:0529:309:3029:30
9:30
#33301
10K
6.21 mi11:36:1659:419:3730:11
9:43
#33474
15K
9.32 mi12:06:471:30:129:4130:31
9:50
#32560
20K
12.43 mi12:37:032:00:289:4230:16
9:45
#32045
Half
13.10 mi12:43:572:07:229:446:54
10:17
#32043
25K
15.53 mi13:08:402:32:059:4824:43
10:09
#31604
30K
18.64 mi13:42:293:05:549:5933:49
10:54
#31397
35K
21.75 mi14:19:003:42:2510:1436:31
11:46
#31512
40K
24.85 mi14:54:044:17:2910:2235:04
11:18
#31235
Finish
26.22 mi15:08:134:31:3810:2314:09
10:23
#30897
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi33301101701017031169(Top 52%)9301(Top 36%)9301(Top 63%)
10K6.21 mi3.10 mi33474-17310245-7510245-7533712(Top 56%)10406(Top 40%)10406(Top 71%)
15K9.32 mi3.11 mi32560+9149862+3839862+38331169(Top 52%)9301(Top 36%)9301(Top 63%)
20K12.43 mi3.11 mi32045+5159719+1439719+14331227(Top 52%)9494(Top 36%)9494(Top 64%)
Half13.10 mi0.67 mi32043+29735-169735-1633061(Top 55%)10512(Top 40%)10512(Top 71%)
25K15.53 mi2.43 mi31604+4399655+809655+8030498(Top 51%)9549(Top 37%)9549(Top 65%)
30K18.64 mi3.11 mi31397+2079734-799734-7931911(Top 53%)10676(Top 41%)10676(Top 72%)
35K21.75 mi3.11 mi31512-11510047-31310047-31333246(Top 56%)12048(Top 46%)12048(Top 82%)
40K24.85 mi3.10 mi31235+27710161-11410161-11430074(Top 50%)11016(Top 42%)11016(Top 75%)
Finish26.22 mi1.37 mi30897+33810083+7810083+7826226(Top 44%)9251(Top 35%)9251(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×10story building
+49ft-125ft

Overall

31169

Females

9301

F18-39

9301

5K→10K

3.1 - 6.2 mi

Top 56%
×4story building
+50ft-81ft

Overall

33712

Females

10406

F18-39

10406

10K→15K

6.2 - 9.3 mi

Top 52%
×1story
+44ft-51ft

Overall

31169

Females

9301

F18-39

9301

15K→20K

9.3 - 12.4 mi

Top 52%
×3story building
+67ft-40ft

Overall

31227

Females

9494

F18-39

9494

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+8ft-27ft

Overall

33061

Females

10512

F18-39

10512

Half→25K

13.1 - 15.5 mi

Top 51%
×2story building
+50ft-63ft

Overall

30498

Females

9549

F18-39

9549

25K→30K

15.5 - 18.6 mi

Top 53%
×2story building
+69ft-46ft

Overall

31911

Females

10676

F18-39

10676

30K→35K

18.6 - 21.8 mi

Top 56%
×2story building
+87ft-88ft

Overall

33246

Females

12048

F18-39

12048

35K→40K

21.8 - 24.9 mi

Top 50%
×3story building
+58ft-75ft

Overall

30074

Females

11016

F18-39

11016

40K→Finish

24.9 - 26.2 mi

Top 44%
×1story
+14ft-18ft

Overall

26226

Females

9251

F18-39

9251

Passing Analysis

Category:
Athletes Passed
4490*
Passed By
1798
Net Change
+2404
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#33301
5K → 10K200200-173#33301#33474
10K → 15K1048*134+914#33474#32560
15K → 20K715*200+515#32560#32045
20K → Half108106+2#32045#32043
Half → 25K635*196+439#32043#31604
25K → 30K713506+207#31604#31397
30K → 35K200200-115#31397#31512
35K → 40K477*200+277#31512#31235
40K → Finish394*56+338#31235#30897
TOTALS4490*1798+2404

* 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