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BOSTON MARATHON 2025

Samantha Crawford

Bib: 15653•F

AL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 23%
Division (F18-39)
#0 / 5469
Top 39%
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
7:28/mi
23:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
46:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:09:17
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:32:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:37:50
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:56:26
↑ 66↓ 880.2%
30K· 18.64 mi
7:54/mi
2:21:00
↑ 181↓ 1480.2%
20M
8:06/mi
2:32:00
↑ 64↓ 500.2%
21M
8:40/mi
2:40:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:46:35
↑ 17↓ 861.7%
23M
8:14/mi
2:56:53
↑ 23↓ 630.6%
24M
8:11/mi
3:05:04
↓ 821.3%
40K· 24.85 mi
8:14/mi
3:12:06
↓ 200.3%
25.2M
8:54/mi
3:15:10
↑ 13↓ 160.2%
Finish· 26.22 mi
8:02/mi
3:23:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:50
Pace7:28 /mi
2nd Half
Distance13.11 mi
Time1:45:31
Pace8:03 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1423:137:2823:13
7:28
-
10K
6.21 mi11:18:1846:177:2723:04
7:25
-0:03
15K
9.32 mi11:41:181:09:177:2623:00
7:24
-0:01
20K
12.43 mi12:04:451:32:447:2823:27
7:33
+0:09
Half
13.11 mi12:09:511:37:507:285:06
7:29
-0:04
25K
15.53 mi12:28:271:56:267:3018:36
7:40
+0:11
30K
18.64 mi12:53:012:21:007:3424:34
7:54
+0:14
20M
20.00 mi13:04:012:32:007:3611:00
8:06
+0:12
21M
21.00 mi13:12:412:40:407:398:40
8:40
+0:34
35K
21.75 mi13:18:362:46:357:405:55
7:55
-0:45
23M
23.00 mi13:28:542:56:537:4110:18
8:14
+0:19
24M
24.00 mi13:37:053:05:047:438:11
8:11
-0:03
40K
24.85 mi13:44:073:12:067:447:02
8:14
+0:03
25.2M
25.20 mi13:47:113:15:107:453:04
8:54
+0:40
Finish
26.22 mi13:55:223:23:217:468:11
8:02
-0:52

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

7:24 /mi

Average Pace

7:46 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:26

57% of race

Time at Steady Pace

49:40

24% of race

Time at Slower Pace

37:15

18% of race

Average Pace: 7:45 /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 mi10:55:1423:137:2823:13
7:28
#12028
10K
6.21 mi11:18:1846:177:2723:04
7:25
#11689
15K
9.32 mi11:41:181:09:177:2623:00
7:24
#11395
20K
12.43 mi12:04:451:32:447:2823:27
7:33
#11333
Half
13.11 mi12:09:511:37:507:285:06
7:29
#11343
25K
15.53 mi12:28:271:56:267:3018:36
7:40
#11293
30K
18.64 mi12:53:012:21:007:3424:34
7:54
#11151
20M
20.00 mi13:04:012:32:007:3611:00
8:06
#11087
21M
21.00 mi13:12:412:40:407:398:40
8:40
#11080
35K
21.75 mi13:18:362:46:357:405:55
7:55
#11082
23M
23.00 mi13:28:542:56:537:4110:18
8:14
#11058
24M
24.00 mi13:37:053:05:047:438:11
8:11
#11094
40K
24.85 mi13:44:073:12:067:447:02
8:14
#11095
25.2M
25.20 mi13:47:113:15:107:453:04
8:54
#11079
Finish
26.22 mi13:55:223:23:217:468:11
8:02
#11135
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi120282816281610932(Top 38%)2341(Top 19%)2341(Top 43%)
10K6.21 mi3.10 mi11689+3392644+1722644+17211423(Top 40%)2524(Top 21%)2524(Top 46%)
15K9.32 mi3.11 mi11395+2942526+1182526+11810932(Top 38%)2341(Top 19%)2341(Top 43%)
20K12.43 mi3.11 mi11333+622515+112515+1111167(Top 39%)2568(Top 21%)2568(Top 47%)
Half13.11 mi0.68 mi11343-102523-82523-811560(Top 41%)2719(Top 22%)2719(Top 50%)
25K15.53 mi2.42 mi11293+502535-122535-1211334(Top 40%)2762(Top 23%)2762(Top 51%)
30K18.64 mi3.11 mi11151+1422546-112546-1110707(Top 38%)2649(Top 22%)2649(Top 48%)
20M20.00 mi1.36 mi11087+642550-42550-411088(Top 39%)2985(Top 24%)2985(Top 55%)
21M21.00 mi1.00 mi11080+72586-362586-3611488(Top 40%)3343(Top 27%)3343(Top 61%)
35K21.75 mi0.75 mi11082-22613-272613-2711649(Top 41%)3451(Top 28%)3451(Top 63%)
23M23.00 mi1.25 mi11058+242645-322645-3211544(Top 41%)3499(Top 29%)3499(Top 64%)
24M24.00 mi1.00 mi11094-362708-632708-6312467(Top 44%)4021(Top 33%)4021(Top 74%)
40K24.85 mi0.85 mi11095-12739-312739-3111727(Top 41%)3762(Top 31%)3762(Top 69%)
25.2M25.20 mi0.35 mi11079+162749-102749-1011231(Top 40%)3605(Top 29%)3605(Top 66%)
Finish26.22 mi1.02 mi11135-562814-652814-6513084(Top 46%)4472(Top 37%)4472(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10932

Females

2341

F18-39

2341

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11423

Females

2524

F18-39

2524

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10932

Females

2341

F18-39

2341

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11167

Females

2568

F18-39

2568

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11560

Females

2719

F18-39

2719

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11334

Females

2762

F18-39

2762

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10707

Females

2649

F18-39

2649

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11088

Females

2985

F18-39

2985

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11488

Females

3343

F18-39

3343

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

11649

Females

3451

F18-39

3451

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11544

Females

3499

F18-39

3499

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12467

Females

4021

F18-39

4021

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11727

Females

3762

F18-39

3762

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11231

Females

3605

F18-39

3605

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13084

Females

4472

F18-39

4472

Passing Analysis

Category:
Athletes Passed
2207
Passed By
1314
Net Change
+893
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12028
5K → 10K464125+339#12028#11689
10K → 15K35157+294#11689#11395
15K → 20K208146+62#11395#11333
20K → Half2636-10#11333#11343
Half → 25K185135+50#11343#11293
25K → 30K300158+142#11293#11151
30K → 20M14379+64#11151#11087
20M → 21M10295+7#11087#11080
21M → 35K5961-2#11080#11082
35K → 23M11894+24#11082#11058
23M → 24M78114-36#11058#11094
24M → 40K7576-1#11094#11095
40K → 25.2M4327+16#11095#11079
25.2M → Finish55111-56#11079#11135
TOTALS22071314+893
📊

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