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BOSTON MARATHON 2026

Samantha Marshall

Bib: 12320•F

MN

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 21%
Gender (Female)
#0 / 12578
Top 5%
Age Group (F18-39)
#0 / 5716
Top 10%
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
20:52
3.11 mi
Rank: #6065
Start → 5K
20:52 | 6:43/mi
10K
41:49
6.21 mi
Rank: #6210 (-145)
5K → 10K
20:57 | 6:45/mi
15K
1:02:40
9.32 mi
Rank: #6074 (+136)
10K → 15K
20:51 | 6:43/mi
20K
1:23:49
12.43 mi
Rank: #6061 (+13)
15K → 20K
21:09 | 6:49/mi
HALF
1:28:24
13.11 mi
Rank: #6071 (-10)
20K → HALF
4:35 | 6:44/mi
25K
1:45:05
15.53 mi
Rank: #6137 (-66)
HALF → 25K
16:41 | 6:53/mi
30K
2:07:01
18.64 mi
Rank: #6161 (-24)
25K → 30K
21:56 | 7:04/mi
20M
2:16:35
20.00 mi
Rank: #6124 (+37)
30K → 20M
9:34 | 7:03/mi
21M
2:23:57
21.00 mi
Rank: #6087 (+37)
20M → 21M
7:22 | 7:22/mi
35K
2:29:11
21.75 mi
Rank: #6127 (-40)
21M → 35K
5:14 | 7:00/mi
23M
2:38:00
23.00 mi
Rank: #6071 (+56)
35K → 23M
8:49 | 7:03/mi
24M
2:44:59
24.00 mi
Rank: #6079 (-8)
23M → 24M
6:59 | 6:59/mi
40K
2:51:07
24.85 mi
Rank: #6089 (-10)
24M → 40K
6:08 | 7:11/mi
25.2M
2:53:41
25.20 mi
Rank: #6044 (+45)
40K → 25.2M
2:34 | 7:27/mi
FINISH
3:00:24
26.22 mi
Rank: #5960 (+84)
25.2M → FINISH
6:43 | 6:36/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:28:24
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:32:00
Pace7:02 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0120:526:4320:52
6:43
-
10K
6.21 mi11:09:5841:496:4420:57
6:45
+0:02
15K
9.32 mi11:30:491:02:406:4420:51
6:43
-0:02
20K
12.43 mi11:51:581:23:496:4521:09
6:49
+0:06
HALF
13.11 mi11:56:331:28:246:454:35
6:44
-0:05
25K
15.53 mi12:13:141:45:056:4616:41
6:53
+0:09
30K
18.64 mi12:35:102:07:016:4921:56
7:04
+0:11
20M
20.00 mi12:44:442:16:356:509:34
7:03
-0:01
21M
21.00 mi12:52:062:23:576:527:22
7:22
+0:19
35K
21.75 mi12:57:202:29:116:525:14
7:00
-0:22
23M
23.00 mi13:06:092:38:006:538:49
7:03
+0:03
24M
24.00 mi13:13:082:44:596:536:59
6:59
-0:04
40K
24.85 mi13:19:162:51:076:546:08
7:11
+0:12
25.2M
25.20 mi13:21:502:53:416:542:34
7:27
+0:16
FINISH
26.22 mi13:28:333:00:246:546:43
6:36
-0:51

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

6:36 /mi

Average Pace

6:53 /mi

Slowest Pace

7:27 /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

2:50:28

94% of race

Time at Steady Pace

9:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /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 mi10:49:0120:526:4320:52
6:43
#6065
10K
6.21 mi11:09:5841:496:4420:57
6:45
#6210
15K
9.32 mi11:30:491:02:406:4420:51
6:43
#6074
20K
12.43 mi11:51:581:23:496:4521:09
6:49
#6061
HALF
13.11 mi11:56:331:28:246:454:35
6:44
#6071
25K
15.53 mi12:13:141:45:056:4616:41
6:53
#6137
30K
18.64 mi12:35:102:07:016:4921:56
7:04
#6161
20M
20.00 mi12:44:442:16:356:509:34
7:03
#6124
21M
21.00 mi12:52:062:23:576:527:22
7:22
#6087
35K
21.75 mi12:57:202:29:116:525:14
7:00
#6127
23M
23.00 mi13:06:092:38:006:538:49
7:03
#6071
24M
24.00 mi13:13:082:44:596:536:59
6:59
#6079
40K
24.85 mi13:19:162:51:076:546:08
7:11
#6089
25.2M
25.20 mi13:21:502:53:416:542:34
7:27
#6044
FINISH
26.22 mi13:28:333:00:246:546:43
6:36
#5960
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 mi60655345345966(Top 21%)553(Top 4%)553(Top 10%)
10K6.21 mi3.10 mi6210-145564-30564-306419(Top 22%)630(Top 5%)630(Top 11%)
15K9.32 mi3.11 mi6074+136534+30534+305966(Top 21%)553(Top 4%)553(Top 10%)
20K12.43 mi3.11 mi6061+13547-13547-136299(Top 22%)650(Top 5%)650(Top 11%)
HALF13.11 mi0.68 mi6071-10551-4551-46478(Top 22%)670(Top 5%)670(Top 12%)
25K15.53 mi2.42 mi6137-66577-26577-266515(Top 22%)749(Top 6%)749(Top 13%)
30K18.64 mi3.11 mi6161-24619-42619-426382(Top 22%)791(Top 6%)791(Top 14%)
20M20.00 mi1.36 mi6124+37621-2621-25894(Top 20%)713(Top 6%)713(Top 12%)
21M21.00 mi1.00 mi6087+37623-2623-25691(Top 20%)763(Top 6%)763(Top 13%)
35K21.75 mi0.75 mi6127-40638-15638-157099(Top 24%)1183(Top 9%)1183(Top 21%)
23M23.00 mi1.25 mi6071+56634+4634+45773(Top 20%)808(Top 6%)808(Top 14%)
24M24.00 mi1.00 mi6079-8641-7641-76382(Top 22%)1070(Top 9%)1070(Top 19%)
40K24.85 mi0.85 mi6089-10649-8649-86594(Top 23%)1192(Top 9%)1192(Top 21%)
25.2M25.20 mi0.35 mi6044+45643+6643+64982(Top 17%)750(Top 6%)750(Top 13%)
FINISH26.22 mi1.02 mi5960+84634+9634+94742(Top 16%)719(Top 6%)719(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21
+97ft-345ft

Overall

5966

Females

553

F18-39

553

5K→10K

3.1 - 6.2 mi

Top 22%
×5
+79ft-138ft

Overall

6419

Females

630

F18-39

630

10K→15K

6.2 - 9.3 mi

Top 21%
×3
+67ft-78ft

Overall

5966

Females

553

F18-39

553

15K→20K

9.3 - 12.4 mi

Top 22%
×5
+106ft-86ft

Overall

6299

Females

650

F18-39

650

20K→HALF

12.4 - 13.1 mi

Top 22%
×2
+19ft-37ft

Overall

6478

Females

670

F18-39

670

HALF→25K

13.1 - 15.5 mi

Top 22%
×4
+66ft-88ft

Overall

6515

Females

749

F18-39

749

25K→30K

15.5 - 18.6 mi

Top 22%
×9
+181ft-148ft

Overall

6382

Females

791

F18-39

791

30K→20M

18.6 - 20.0 mi

Top 20%
×5
+64ft-50ft

Overall

5894

Females

713

F18-39

713

20M→21M

20.0 - 21.0 mi

Top 20%
×8
+106ft-24ft

Overall

5691

Females

763

F18-39

763

21M→35K

21.0 - 21.8 mi

Top 24%
×7
+17ft-86ft

Overall

7099

Females

1183

F18-39

1183

35K→23M

21.8 - 23.0 mi

Top 20%
×5
+23ft-63ft

Overall

5773

Females

808

F18-39

808

23M→24M

23.0 - 24.0 mi

Top 22%
×6
+12ft-82ft

Overall

6382

Females

1070

F18-39

1070

24M→40K

24.0 - 24.9 mi

Top 23%
×1
+6ft-20ft

Overall

6594

Females

1192

F18-39

1192

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1
+13ft-16ft

Overall

4982

Females

750

F18-39

750

25.2M→FINISH

25.2 - 26.2 mi

Top 16%
×2
+22ft-21ft

Overall

4742

Females

719

F18-39

719

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1317
Passed By
1212
Net Change
+105
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6065
5K → 10K138283-145#6065#6210
10K → 15K21276+136#6210#6074
15K → 20K147134+13#6074#6061
20K → HALF1828-10#6061#6071
HALF → 25K80146-66#6071#6137
25K → 30K137161-24#6137#6161
30K → 20M8851+37#6161#6124
20M → 21M8447+37#6124#6087
21M → 35K3575-40#6087#6127
35K → 23M10044+56#6127#6071
23M → 24M5462-8#6071#6079
24M → 40K6575-10#6079#6089
40K → 25.2M527+45#6089#6044
25.2M → FINISH10723+84#6044#5960
TOTALS13171212+105
📊

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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing