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BOSTON MARATHON 2026

Grace Layton

Bib: 11584•F

MA

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°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
33:26
3.11 mi
Rank: #27652
Start → 5K
33:26 | 10:46/mi
10K
1:07:56
6.21 mi
Rank: #27766 (-114)
5K → 10K
34:30 | 11:07/mi
15K
1:41:37
9.32 mi
Rank: #27568 (+198)
10K → 15K
33:41 | 10:51/mi
20K
2:16:06
12.43 mi
Rank: #27469 (+99)
15K → 20K
34:29 | 11:06/mi
HALF
2:23:41
13.11 mi
Rank: #27456 (+13)
20K → HALF
7:35 | 11:08/mi
25K
2:50:50
15.53 mi
Rank: #27315 (+141)
HALF → 25K
27:09 | 11:12/mi
30K
3:28:02
18.64 mi
Rank: #27220 (+95)
25K → 30K
37:12 | 11:59/mi
20M
3:45:00
20.00 mi
Rank: #27207 (+13)
30K → 20M
16:58 | 12:30/mi
21M
3:56:51
21.00 mi
Rank: #27118 (+89)
20M → 21M
11:51 | 11:51/mi
35K
4:05:43
21.75 mi
Rank: #27101 (+17)
21M → 35K
8:52 | 11:52/mi
23M
4:20:18
23.00 mi
Rank: #27038 (+63)
35K → 23M
14:35 | 11:40/mi
24M
4:31:32
24.00 mi
Rank: #26999 (+39)
23M → 24M
11:14 | 11:14/mi
40K
4:41:01
24.85 mi
Rank: #26921 (+78)
24M → 40K
9:29 | 11:06/mi
25.2M
4:45:11
25.20 mi
Rank: #26902 (+19)
40K → 25.2M
4:10 | 12:05/mi
FINISH
4:55:42
26.22 mi
Rank: #26853 (+49)
25.2M → FINISH
10:31 | 10:20/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:23:41
Pace10:58 /mi
2nd Half
Distance13.11 mi
Time2:32:01
Pace11:36 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0433:2610:4633:26
10:46
-
10K
6.21 mi11:28:341:07:5610:5634:30
11:07
+0:21
15K
9.32 mi12:02:151:41:3710:5533:41
10:51
-0:16
20K
12.43 mi12:36:442:16:0610:5834:29
11:06
+0:15
HALF
13.11 mi12:44:192:23:4110:587:35
11:08
+0:02
25K
15.53 mi13:11:282:50:5011:0027:09
11:12
+0:04
30K
18.64 mi13:48:403:28:0211:1037:12
11:59
+0:47
20M
20.00 mi14:05:383:45:0011:1616:58
12:30
+0:31
21M
21.00 mi14:17:293:56:5111:1711:51
11:51
-0:39
35K
21.75 mi14:26:214:05:4311:188:52
11:52
+0:01
23M
23.00 mi14:40:564:20:1811:2014:35
11:40
-0:12
24M
24.00 mi14:52:104:31:3211:1911:14
11:14
-0:26
40K
24.85 mi15:01:394:41:0111:199:29
11:06
-0:08
25.2M
25.20 mi15:05:494:45:1111:204:10
12:05
+0:59
FINISH
26.22 mi15:16:204:55:4211:1810:31
10:20
-1:45

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

10:20 /mi

Average Pace

11:17 /mi

Slowest Pace

12:30 /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

1:17:38

26% of race

Time at Steady Pace

2:04:26

42% of race

Time at Slower Pace

1:33:38

32% of race

Average Pace: 11:17 /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 mi10:54:0433:2610:4633:26
10:46
#27652
10K
6.21 mi11:28:341:07:5610:5634:30
11:07
#27766
15K
9.32 mi12:02:151:41:3710:5533:41
10:51
#27568
20K
12.43 mi12:36:442:16:0610:5834:29
11:06
#27469
HALF
13.11 mi12:44:192:23:4110:587:35
11:08
#27456
25K
15.53 mi13:11:282:50:5011:0027:09
11:12
#27315
30K
18.64 mi13:48:403:28:0211:1037:12
11:59
#27220
20M
20.00 mi14:05:383:45:0011:1616:58
12:30
#27207
21M
21.00 mi14:17:293:56:5111:1711:51
11:51
#27118
35K
21.75 mi14:26:214:05:4311:188:52
11:52
#27101
23M
23.00 mi14:40:564:20:1811:2014:35
11:40
#27038
24M
24.00 mi14:52:104:31:3211:1911:14
11:14
#26999
40K
24.85 mi15:01:394:41:0111:199:29
11:06
#26921
25.2M
25.20 mi15:05:494:45:1111:204:10
12:05
#26902
FINISH
26.22 mi15:16:204:55:4211:1810:31
10:20
#26853
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27652116521165227226(Top 94%)11442(Top 91%)11442(Top 200%)
10K6.21 mi3.10 mi27766-11411737-8511737-8527809(Top 96%)11792(Top 94%)11792(Top 206%)
15K9.32 mi3.11 mi27568+19811634+10311634+10327226(Top 94%)11442(Top 91%)11442(Top 200%)
20K12.43 mi3.11 mi27469+9911576+5811576+5827085(Top 93%)11354(Top 90%)11354(Top 199%)
HALF13.11 mi0.68 mi27456+1311571+511571+527510(Top 95%)11652(Top 93%)11652(Top 204%)
25K15.53 mi2.42 mi27315+14111494+7711494+7726619(Top 92%)11162(Top 89%)11162(Top 195%)
30K18.64 mi3.11 mi27220+9511462+3211462+3226747(Top 92%)11317(Top 90%)11317(Top 198%)
20M20.00 mi1.36 mi27207+13114621146226947(Top 93%)11484(Top 91%)11484(Top 201%)
21M21.00 mi1.00 mi27118+8911424+3811424+3824830(Top 86%)10411(Top 83%)10411(Top 182%)
35K21.75 mi0.75 mi27101+1711418+611418+626575(Top 92%)11343(Top 90%)11343(Top 198%)
23M23.00 mi1.25 mi27038+6311392+2611392+2625659(Top 88%)10897(Top 87%)10897(Top 191%)
24M24.00 mi1.00 mi26999+3911375+1711375+1725515(Top 88%)10863(Top 86%)10863(Top 190%)
40K24.85 mi0.85 mi26921+7811337+3811337+3824448(Top 84%)10371(Top 82%)10371(Top 181%)
25.2M25.20 mi0.35 mi26902+1911328+911328+924640(Top 85%)10473(Top 83%)10473(Top 183%)
FINISH26.22 mi1.02 mi26853+4911316+1211316+1224653(Top 85%)10452(Top 83%)10452(Top 183%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21
+97ft-345ft

Overall

27226

Females

11442

F18-39

11442

5K→10K

3.1 - 6.2 mi

Top 96%
×5
+79ft-138ft

Overall

27809

Females

11792

F18-39

11792

10K→15K

6.2 - 9.3 mi

Top 94%
×3
+67ft-78ft

Overall

27226

Females

11442

F18-39

11442

15K→20K

9.3 - 12.4 mi

Top 93%
×5
+106ft-86ft

Overall

27085

Females

11354

F18-39

11354

20K→HALF

12.4 - 13.1 mi

Top 95%
×2
+19ft-37ft

Overall

27510

Females

11652

F18-39

11652

HALF→25K

13.1 - 15.5 mi

Top 92%
×4
+66ft-88ft

Overall

26619

Females

11162

F18-39

11162

25K→30K

15.5 - 18.6 mi

Top 92%
×9
+181ft-148ft

Overall

26747

Females

11317

F18-39

11317

30K→20M

18.6 - 20.0 mi

Top 93%
×5
+64ft-50ft

Overall

26947

Females

11484

F18-39

11484

20M→21M

20.0 - 21.0 mi

Top 86%
×8
+106ft-24ft

Overall

24830

Females

10411

F18-39

10411

21M→35K

21.0 - 21.8 mi

Top 92%
×7
+17ft-86ft

Overall

26575

Females

11343

F18-39

11343

35K→23M

21.8 - 23.0 mi

Top 88%
×5
+23ft-63ft

Overall

25659

Females

10897

F18-39

10897

23M→24M

23.0 - 24.0 mi

Top 88%
×6
+12ft-82ft

Overall

25515

Females

10863

F18-39

10863

24M→40K

24.0 - 24.9 mi

Top 84%
×1
+6ft-20ft

Overall

24448

Females

10371

F18-39

10371

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1
+13ft-16ft

Overall

24640

Females

10473

F18-39

10473

25.2M→FINISH

25.2 - 26.2 mi

Top 85%
×2
+22ft-21ft

Overall

24653

Females

10452

F18-39

10452

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1286
Passed By
487
Net Change
+799
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27652
5K → 10K107221-114#27652#27766
10K → 15K24143+198#27766#27568
15K → 20K15051+99#27568#27469
20K → HALF2916+13#27469#27456
HALF → 25K15615+141#27456#27315
25K → 30K13439+95#27315#27220
30K → 20M4431+13#27220#27207
20M → 21M978+89#27207#27118
21M → 35K3619+17#27118#27101
35K → 23M8017+63#27101#27038
23M → 24M5112+39#27038#26999
24M → 40K813+78#26999#26921
40K → 25.2M234+19#26921#26902
25.2M → FINISH578+49#26902#26853
TOTALS1286487+799
📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing