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BOSTON MARATHON 2026

Lauren Nelson

Bib: 31548•F

FL

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F40-44)
#0 / 1737
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
37:19
3.11 mi
Rank: #28803
Start → 5K
37:19 | 12:01/mi
10K
1:16:15
6.21 mi
Rank: #28835 (-32)
5K → 10K
38:56 | 12:32/mi
15K
1:55:23
9.32 mi
Rank: #28816 (+19)
10K → 15K
39:08 | 12:36/mi
20K
2:36:45
12.43 mi
Rank: #28812 (+4)
15K → 20K
41:22 | 13:19/mi
HALF
2:45:27
13.11 mi
Rank: #28810 (+2)
20K → HALF
8:42 | 12:46/mi
25K
3:17:23
15.53 mi
Rank: #28766 (+44)
HALF → 25K
31:56 | 13:11/mi
30K
4:00:28
18.64 mi
Rank: #28711 (+55)
25K → 30K
43:05 | 13:53/mi
20M
4:20:00
20.00 mi
Rank: #28696 (+15)
30K → 20M
19:32 | 14:23/mi
21M
4:34:44
21.00 mi
Rank: #28673 (+23)
20M → 21M
14:44 | 14:44/mi
35K
4:45:15
21.75 mi
Rank: #28673
21M → 35K
10:31 | 14:04/mi
23M
5:03:10
23.00 mi
Rank: #28670 (+3)
35K → 23M
17:55 | 14:20/mi
24M
5:15:57
24.00 mi
Rank: #28644 (+26)
23M → 24M
12:47 | 12:47/mi
40K
5:27:34
24.85 mi
Rank: #28627 (+17)
24M → 40K
11:37 | 13:36/mi
25.2M
5:32:58
25.20 mi
Rank: #28629 (-2)
40K → 25.2M
5:24 | 15:40/mi
FINISH
5:46:59
26.22 mi
Rank: #28636 (-7)
25.2M → FINISH
14:01 | 13:46/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:45:27
Pace12:38 /mi
2nd Half
Distance13.11 mi
Time3:01:32
Pace13:51 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:05:2137:1912:0137:19
12:01
-
10K
6.21 mi12:44:171:16:1512:1738:56
12:32
+0:31
15K
9.32 mi13:23:251:55:2312:2339:08
12:36
+0:04
20K
12.43 mi14:04:472:36:4512:3741:22
13:19
+0:43
HALF
13.11 mi14:13:292:45:2712:388:42
12:46
-0:33
25K
15.53 mi14:45:253:17:2312:4331:56
13:11
+0:25
30K
18.64 mi15:28:304:00:2812:5443:05
13:53
+0:42
20M
20.00 mi15:48:024:20:0013:0119:32
14:23
+0:30
21M
21.00 mi16:02:464:34:4413:0514:44
14:44
+0:21
35K
21.75 mi16:13:174:45:1513:0710:31
14:04
-0:40
23M
23.00 mi16:31:125:03:1013:1117:55
14:20
+0:16
24M
24.00 mi16:43:595:15:5713:1012:47
12:47
-1:33
40K
24.85 mi16:55:365:27:3413:1111:37
13:36
+0:49
25.2M
25.20 mi17:01:005:32:5813:135:24
15:40
+2:04
FINISH
26.22 mi17:15:015:46:5913:1514:01
13:46
-1:54

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

12:01 /mi

Average Pace

13:15 /mi

Slowest Pace

15:40 /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

2:16:52

39% of race

Time at Steady Pace

2:32:32

44% of race

Time at Slower Pace

57:35

17% of race

Average Pace: 13:14 /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 mi12:05:2137:1912:0137:19
12:01
#28803
10K
6.21 mi12:44:171:16:1512:1738:56
12:32
#28835
15K
9.32 mi13:23:251:55:2312:2339:08
12:36
#28816
20K
12.43 mi14:04:472:36:4512:3741:22
13:19
#28812
HALF
13.11 mi14:13:292:45:2712:388:42
12:46
#28810
25K
15.53 mi14:45:253:17:2312:4331:56
13:11
#28766
30K
18.64 mi15:28:304:00:2812:5443:05
13:53
#28711
20M
20.00 mi15:48:024:20:0013:0119:32
14:23
#28696
21M
21.00 mi16:02:464:34:4413:0514:44
14:44
#28673
35K
21.75 mi16:13:174:45:1513:0710:31
14:04
#28673
23M
23.00 mi16:31:125:03:1013:1117:55
14:20
#28670
24M
24.00 mi16:43:595:15:5713:1012:47
12:47
#28644
40K
24.85 mi16:55:365:27:3413:1111:37
13:36
#28627
25.2M
25.20 mi17:01:005:32:5813:135:24
15:40
#28629
FINISH
26.22 mi17:15:015:46:5913:1514:01
13:46
#28636
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi28803124291242928687(Top 99%)12355(Top 98%)12355(Top 711%)
10K6.21 mi3.10 mi28835-3212451-2212451-2228836(Top 99%)12454(Top 99%)12454(Top 717%)
15K9.32 mi3.11 mi28816+1912435+1612435+1628687(Top 99%)12355(Top 98%)12355(Top 711%)
20K12.43 mi3.11 mi28812+412436-112436-128731(Top 99%)12400(Top 99%)12400(Top 714%)
HALF13.11 mi0.68 mi28810+212439-312439-328642(Top 99%)12361(Top 98%)12361(Top 712%)
25K15.53 mi2.42 mi28766+4412406+3312406+3328325(Top 98%)12150(Top 97%)12150(Top 699%)
30K18.64 mi3.11 mi28711+5512374+3212374+3228291(Top 97%)12184(Top 97%)12184(Top 701%)
20M20.00 mi1.36 mi28696+1512365+912365+928339(Top 98%)12223(Top 97%)12223(Top 704%)
21M21.00 mi1.00 mi28673+2312353+1212353+1227899(Top 96%)12011(Top 95%)12011(Top 691%)
35K21.75 mi0.75 mi2867312359-612359-628379(Top 98%)12289(Top 98%)12289(Top 707%)
23M23.00 mi1.25 mi28670+312358+112358+128340(Top 98%)12266(Top 98%)12266(Top 706%)
24M24.00 mi1.00 mi28644+2612343+1512343+1527461(Top 95%)11846(Top 94%)11846(Top 682%)
40K24.85 mi0.85 mi28627+1712338+512338+527578(Top 95%)11904(Top 95%)11904(Top 685%)
25.2M25.20 mi0.35 mi28629-212337+112337+128285(Top 97%)12281(Top 98%)12281(Top 707%)
FINISH26.22 mi1.02 mi28636-712349-1212349-1228605(Top 99%)12413(Top 99%)12413(Top 715%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21
+97ft-345ft

Overall

28687

Females

12355

F40-44

12355

5K→10K

3.1 - 6.2 mi

Top 99%
×5
+79ft-138ft

Overall

28836

Females

12454

F40-44

12454

10K→15K

6.2 - 9.3 mi

Top 99%
×3
+67ft-78ft

Overall

28687

Females

12355

F40-44

12355

15K→20K

9.3 - 12.4 mi

Top 99%
×5
+106ft-86ft

Overall

28731

Females

12400

F40-44

12400

20K→HALF

12.4 - 13.1 mi

Top 99%
×2
+19ft-37ft

Overall

28642

Females

12361

F40-44

12361

HALF→25K

13.1 - 15.5 mi

Top 98%
×4
+66ft-88ft

Overall

28325

Females

12150

F40-44

12150

25K→30K

15.5 - 18.6 mi

Top 97%
×9
+181ft-148ft

Overall

28291

Females

12184

F40-44

12184

30K→20M

18.6 - 20.0 mi

Top 98%
×5
+64ft-50ft

Overall

28339

Females

12223

F40-44

12223

20M→21M

20.0 - 21.0 mi

Top 96%
×8
+106ft-24ft

Overall

27899

Females

12011

F40-44

12011

21M→35K

21.0 - 21.8 mi

Top 98%
×7
+17ft-86ft

Overall

28379

Females

12289

F40-44

12289

35K→23M

21.8 - 23.0 mi

Top 98%
×5
+23ft-63ft

Overall

28340

Females

12266

F40-44

12266

23M→24M

23.0 - 24.0 mi

Top 95%
×6
+12ft-82ft

Overall

27461

Females

11846

F40-44

11846

24M→40K

24.0 - 24.9 mi

Top 95%
×1
+6ft-20ft

Overall

27578

Females

11904

F40-44

11904

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1
+13ft-16ft

Overall

28285

Females

12281

F40-44

12281

25.2M→FINISH

25.2 - 26.2 mi

Top 99%
×2
+22ft-21ft

Overall

28605

Females

12413

F40-44

12413

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
359
Passed By
192
Net Change
+167
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28803
5K → 10K2355-32#28803#28835
10K → 15K3920+19#28835#28816
15K → 20K3531+4#28816#28812
20K → HALF97+2#28812#28810
HALF → 25K484+44#28810#28766
25K → 30K6510+55#28766#28711
30K → 20M2611+15#28711#28696
20M → 21M307+23#28696#28673
21M → 35K11110#28673#28673
35K → 23M1310+3#28673#28670
23M → 24M271+26#28670#28644
24M → 40K192+17#28644#28627
40K → 25.2M46-2#28627#28629
25.2M → FINISH1017-7#28629#28636
TOTALS359192+167
📊

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