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BOSTON MARATHON 2025

Samantha Morse

Bib: 26291•F

VA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:43/mi
27:06
↑ 97↓ 3451.5%
10K· 6.21 mi
8:53/mi
54:41
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:22:37
↑ 67↓ 78
20K· 12.43 mi
8:59/mi
1:50:33
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
1:56:29
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:18:00
↑ 66↓ 880.2%
30K· 18.64 mi
9:12/mi
2:46:36
↑ 181↓ 1480.2%
20M
9:10/mi
2:59:03
↑ 64↓ 500.2%
21M
9:22/mi
3:08:25
↑ 106↓ 241.6%
35K· 21.75 mi
9:08/mi
3:15:15
↑ 17↓ 861.7%
23M
8:50/mi
3:26:19
↑ 23↓ 630.6%
24M
8:43/mi
3:35:02
↓ 821.3%
40K· 24.85 mi
9:26/mi
3:43:06
↓ 200.3%
25.2M
9:37/mi
3:46:25
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:54:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:29
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time1:58:28
Pace9:02 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:1727:068:4327:06
8:43
-
10K
6.21 mi12:09:5254:418:4827:35
8:53
+0:10
15K
9.32 mi12:37:481:22:378:5227:56
8:59
+0:06
20K
12.43 mi13:05:441:50:338:5427:56
8:59
0:00
Half
13.11 mi13:11:401:56:298:535:56
8:42
-0:17
25K
15.53 mi13:33:112:18:008:5321:31
8:52
+0:10
30K
18.64 mi14:01:472:46:368:5628:36
9:12
+0:20
20M
20.00 mi14:14:142:59:038:5712:27
9:10
-0:02
21M
21.00 mi14:23:363:08:258:589:22
9:22
+0:12
35K
21.75 mi14:30:263:15:158:596:50
9:08
-0:14
23M
23.00 mi14:41:303:26:198:5811:04
8:50
-0:18
24M
24.00 mi14:50:133:35:028:588:43
8:43
-0:07
40K
24.85 mi14:58:173:43:068:598:04
9:26
+0:43
25.2M
25.20 mi15:01:363:46:258:593:19
9:37
+0:11
Finish
26.22 mi15:10:083:54:578:588:32
8:22
-1:15

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

8:22 /mi

Average Pace

8:58 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:12

91% of race

Time at Steady Pace

20:45

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:58 /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 mi11:42:1727:068:4327:06
8:43
#21116
10K
6.21 mi12:09:5254:418:4827:35
8:53
#21452
15K
9.32 mi12:37:481:22:378:5227:56
8:59
#21616
20K
12.43 mi13:05:441:50:338:5427:56
8:59
#21427
Half
13.11 mi13:11:401:56:298:535:56
8:42
#21361
25K
15.53 mi13:33:112:18:008:5321:31
8:52
#21015
30K
18.64 mi14:01:472:46:368:5628:36
9:12
#20558
20M
20.00 mi14:14:142:59:038:5712:27
9:10
#20339
21M
21.00 mi14:23:363:08:258:589:22
9:22
#20045
35K
21.75 mi14:30:263:15:158:596:50
9:08
#20006
23M
23.00 mi14:41:303:26:198:5811:04
8:50
#19758
24M
24.00 mi14:50:133:35:028:588:43
8:43
#19598
40K
24.85 mi14:58:173:43:068:598:04
9:26
#19548
25.2M
25.20 mi15:01:363:46:258:593:19
9:37
#19472
Finish
26.22 mi15:10:083:54:578:588:32
8:22
#19328
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi211168143814321991(Top 77%)8542(Top 70%)8542(Top 156%)
10K6.21 mi3.10 mi21452-3368308-1658308-16521803(Top 77%)8479(Top 69%)8479(Top 155%)
15K9.32 mi3.11 mi21616-1648373-658373-6521991(Top 77%)8542(Top 70%)8542(Top 156%)
20K12.43 mi3.11 mi21427+1898278+958278+9520919(Top 74%)8004(Top 65%)8004(Top 146%)
Half13.11 mi0.68 mi21361+668237+418237+4120375(Top 72%)7676(Top 63%)7676(Top 140%)
25K15.53 mi2.42 mi21015+3468043+1948043+19419317(Top 68%)7154(Top 59%)7154(Top 131%)
30K18.64 mi3.11 mi20558+4577843+2007843+20018667(Top 66%)6933(Top 57%)6933(Top 127%)
20M20.00 mi1.36 mi20339+2197744+997744+9917618(Top 62%)6482(Top 53%)6482(Top 119%)
21M21.00 mi1.00 mi20045+2947599+1457599+14515510(Top 55%)5468(Top 45%)5468(Top 100%)
35K21.75 mi0.75 mi20006+397596+37596+318908(Top 67%)7405(Top 61%)7405(Top 135%)
23M23.00 mi1.25 mi19758+2487487+1097487+10915362(Top 54%)5536(Top 45%)5536(Top 101%)
24M24.00 mi1.00 mi19598+1607424+637424+6315888(Top 56%)5878(Top 48%)5878(Top 107%)
40K24.85 mi0.85 mi19548+507404+207404+2018454(Top 65%)7362(Top 60%)7362(Top 135%)
25.2M25.20 mi0.35 mi19472+767369+357369+3515296(Top 54%)5737(Top 47%)5737(Top 105%)
Finish26.22 mi1.02 mi19328+1447313+567313+5615445(Top 54%)5734(Top 47%)5734(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21991

Females

8542

F18-39

8542

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21803

Females

8479

F18-39

8479

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21991

Females

8542

F18-39

8542

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

20919

Females

8004

F18-39

8004

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20375

Females

7676

F18-39

7676

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19317

Females

7154

F18-39

7154

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18667

Females

6933

F18-39

6933

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17618

Females

6482

F18-39

6482

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

15510

Females

5468

F18-39

5468

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

18908

Females

7405

F18-39

7405

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15362

Females

5536

F18-39

5536

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15888

Females

5878

F18-39

5878

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18454

Females

7362

F18-39

7362

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15296

Females

5737

F18-39

5737

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15445

Females

5734

F18-39

5734

Passing Analysis

Category:
Athletes Passed
2865
Passed By
1077
Net Change
+1788
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21116
5K → 10K164500-336#21116#21452
10K → 15K156320-164#21452#21616
15K → 20K300111+189#21616#21427
20K → Half7711+66#21427#21361
Half → 25K35711+346#21361#21015
25K → 30K49134+457#21015#20558
30K → 20M2267+219#20558#20339
20M → 21M2962+294#20339#20045
21M → 35K7334+39#20045#20006
35K → 23M2491+248#20006#19758
23M → 24M1677+160#19758#19598
24M → 40K8030+50#19598#19548
40K → 25.2M771+76#19548#19472
25.2M → Finish1528+144#19472#19328
TOTALS28651077+1788
📊

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

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing