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BOSTON MARATHON 2026

Sam Anderson

Bib: 16189•F

UT

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 32%
Gender (Female)
#0 / 12578
Top 15%
Age Group (F18-39)
#0 / 5716
Top 27%
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
21:01
3.11 mi
Rank: #6546
Start → 5K
21:01 | 6:46/mi
10K
42:45
6.21 mi
Rank: #7674 (-1128)
5K → 10K
21:44 | 7:00/mi
15K
1:04:49
9.32 mi
Rank: #8243 (-569)
10K → 15K
22:04 | 7:07/mi
20K
1:27:51
12.43 mi
Rank: #8856 (-613)
15K → 20K
23:02 | 7:25/mi
HALF
1:32:40
13.11 mi
Rank: #8872 (-16)
20K → HALF
4:49 | 7:04/mi
25K
1:50:52
15.53 mi
Rank: #9198 (-326)
HALF → 25K
18:12 | 7:31/mi
30K
2:14:04
18.64 mi
Rank: #9185 (+13)
25K → 30K
23:12 | 7:29/mi
20M
2:24:29
20.00 mi
Rank: #9227 (-42)
30K → 20M
10:25 | 7:41/mi
21M
2:32:43
21.00 mi
Rank: #9325 (-98)
20M → 21M
8:14 | 8:14/mi
35K
2:38:58
21.75 mi
Rank: #9576 (-251)
21M → 35K
6:15 | 8:22/mi
23M
2:48:04
23.00 mi
Rank: #9355 (+221)
35K → 23M
9:06 | 7:17/mi
24M
2:55:12
24.00 mi
Rank: #9238 (+117)
23M → 24M
7:08 | 7:08/mi
40K
3:01:55
24.85 mi
Rank: #9279 (-41)
24M → 40K
6:43 | 7:52/mi
25.2M
3:04:38
25.20 mi
Rank: #9241 (+38)
40K → 25.2M
2:43 | 7:53/mi
FINISH
3:11:52
26.22 mi
Rank: #9154 (+87)
25.2M → FINISH
7:14 | 7:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:32:40
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:39:12
Pace7:35 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:02:0821:016:4621:01
6:46
-
10K
6.21 mi11:23:5242:456:5321:44
7:00
+0:14
15K
9.32 mi11:45:561:04:496:5822:04
7:07
+0:07
20K
12.43 mi12:08:581:27:517:0523:02
7:25
+0:18
HALF
13.11 mi12:13:471:32:407:054:49
7:04
-0:21
25K
15.53 mi12:31:591:50:527:0918:12
7:31
+0:27
30K
18.64 mi12:55:112:14:047:1223:12
7:29
-0:02
20M
20.00 mi13:05:362:24:297:1410:25
7:41
+0:12
21M
21.00 mi13:13:502:32:437:178:14
8:14
+0:33
35K
21.75 mi13:20:052:38:587:196:15
8:22
+0:08
23M
23.00 mi13:29:112:48:047:199:06
7:17
-1:05
24M
24.00 mi13:36:192:55:127:197:08
7:08
-0:09
40K
24.85 mi13:43:023:01:557:206:43
7:52
+0:44
25.2M
25.20 mi13:45:453:04:387:202:43
7:53
+0:01
FINISH
26.22 mi13:52:593:11:527:207:14
7:06
-0:47

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

6:46 /mi

Average Pace

7:19 /mi

Slowest Pace

8:22 /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

1:24:00

44% of race

Time at Steady Pace

1:13:32

38% of race

Time at Slower Pace

34:20

18% of race

Average Pace: 7:19 /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 mi11:02:0821:016:4621:01
6:46
#6546
10K
6.21 mi11:23:5242:456:5321:44
7:00
#7674
15K
9.32 mi11:45:561:04:496:5822:04
7:07
#8243
20K
12.43 mi12:08:581:27:517:0523:02
7:25
#8856
HALF
13.11 mi12:13:471:32:407:054:49
7:04
#8872
25K
15.53 mi12:31:591:50:527:0918:12
7:31
#9198
30K
18.64 mi12:55:112:14:047:1223:12
7:29
#9185
20M
20.00 mi13:05:362:24:297:1410:25
7:41
#9227
21M
21.00 mi13:13:502:32:437:178:14
8:14
#9325
35K
21.75 mi13:20:052:38:587:196:15
8:22
#9576
23M
23.00 mi13:29:112:48:047:199:06
7:17
#9355
24M
24.00 mi13:36:192:55:127:197:08
7:08
#9238
40K
24.85 mi13:43:023:01:557:206:43
7:52
#9279
25.2M
25.20 mi13:45:453:04:387:202:43
7:53
#9241
FINISH
26.22 mi13:52:593:11:527:207:14
7:06
#9154
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 mi65466456459320(Top 32%)1624(Top 13%)1624(Top 28%)
10K6.21 mi3.10 mi7674-1128987-342987-3428652(Top 30%)1325(Top 11%)1325(Top 23%)
15K9.32 mi3.11 mi8243-5691190-2031190-2039320(Top 32%)1624(Top 13%)1624(Top 28%)
20K12.43 mi3.11 mi8856-6131422-2321422-23211244(Top 39%)2700(Top 21%)2700(Top 47%)
HALF13.11 mi0.68 mi8872-161431-91431-99244(Top 32%)1625(Top 13%)1625(Top 28%)
25K15.53 mi2.42 mi9198-3261592-1611592-16111460(Top 39%)2868(Top 23%)2868(Top 50%)
30K18.64 mi3.11 mi9185+131632-401632-409405(Top 32%)1995(Top 16%)1995(Top 35%)
20M20.00 mi1.36 mi9227-421697-651697-6510377(Top 36%)2574(Top 20%)2574(Top 45%)
21M21.00 mi1.00 mi9325-981758-611758-6111415(Top 39%)3195(Top 25%)3195(Top 56%)
35K21.75 mi0.75 mi9576-2511898-1401898-14016760(Top 58%)6171(Top 49%)6171(Top 108%)
23M23.00 mi1.25 mi9355+2211823+751823+757287(Top 25%)1338(Top 11%)1338(Top 23%)
24M24.00 mi1.00 mi9238+1171797+261797+267427(Top 26%)1479(Top 12%)1479(Top 26%)
40K24.85 mi0.85 mi9279-411839-421839-4211459(Top 39%)3482(Top 28%)3482(Top 61%)
25.2M25.20 mi0.35 mi9241+381831+81831+87668(Top 26%)1718(Top 14%)1718(Top 30%)
FINISH26.22 mi1.02 mi9154+871827+41827+48365(Top 29%)2079(Top 17%)2079(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21
+97ft-345ft

Overall

9320

Females

1624

F18-39

1624

5K→10K

3.1 - 6.2 mi

Top 30%
×5
+79ft-138ft

Overall

8652

Females

1325

F18-39

1325

10K→15K

6.2 - 9.3 mi

Top 32%
×3
+67ft-78ft

Overall

9320

Females

1624

F18-39

1624

15K→20K

9.3 - 12.4 mi

Top 39%
×5
+106ft-86ft

Overall

11244

Females

2700

F18-39

2700

20K→HALF

12.4 - 13.1 mi

Top 32%
×2
+19ft-37ft

Overall

9244

Females

1625

F18-39

1625

HALF→25K

13.1 - 15.5 mi

Top 39%
×4
+66ft-88ft

Overall

11460

Females

2868

F18-39

2868

25K→30K

15.5 - 18.6 mi

Top 32%
×9
+181ft-148ft

Overall

9405

Females

1995

F18-39

1995

30K→20M

18.6 - 20.0 mi

Top 36%
×5
+64ft-50ft

Overall

10377

Females

2574

F18-39

2574

20M→21M

20.0 - 21.0 mi

Top 39%
×8
+106ft-24ft

Overall

11415

Females

3195

F18-39

3195

21M→35K

21.0 - 21.8 mi

Top 58%
×7
+17ft-86ft

Overall

16760

Females

6171

F18-39

6171

35K→23M

21.8 - 23.0 mi

Top 25%
×5
+23ft-63ft

Overall

7287

Females

1338

F18-39

1338

23M→24M

23.0 - 24.0 mi

Top 26%
×6
+12ft-82ft

Overall

7427

Females

1479

F18-39

1479

24M→40K

24.0 - 24.9 mi

Top 39%
×1
+6ft-20ft

Overall

11459

Females

3482

F18-39

3482

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1
+13ft-16ft

Overall

7668

Females

1718

F18-39

1718

25.2M→FINISH

25.2 - 26.2 mi

Top 29%
×2
+22ft-21ft

Overall

8365

Females

2079

F18-39

2079

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1052
Passed By
3660
Net Change
-2608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6546
5K → 10K211149-1128#6546#7674
10K → 15K22591-569#7674#8243
15K → 20K28641-613#8243#8856
20K → HALF2137-16#8856#8872
HALF → 25K49375-326#8872#9198
25K → 30K172159+13#9198#9185
30K → 20M92134-42#9185#9227
20M → 21M48146-98#9227#9325
21M → 35K18269-251#9325#9576
35K → 23M23110+221#9576#9355
23M → 24M12811+117#9355#9238
24M → 40K4889-41#9238#9279
40K → 25.2M4911+38#9279#9241
25.2M → FINISH12538+87#9241#9154
TOTALS10523660-2608
📊

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