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BOSTON MARATHON 2025

Samantha Sheppard

Bib: 14069•F

AZ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 22%
Division (F18-39)
#0 / 5469
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:31
Rank: #7274
Start → 5K
6:56/mi
21:31 split
10K· 6.21 mi
43:36
Rank: #7990 (-716)
5K → 10K
7:06/mi
22:05 split
15K· 9.32 mi
1:06:03
Rank: #8387 (-397)
10K → 15K
7:14/mi
22:27 split
20K· 12.43 mi
1:29:19
Rank: #8874 (-487)
15K → 20K
7:29/mi
23:16 split
Half· 13.11 mi
1:34:25
Rank: #9011 (-137)
20K → Half
7:29/mi
5:06 split
25K· 15.53 mi
1:53:14
Rank: #9481 (-470)
Half → 25K
7:46/mi
18:49 split
30K· 18.64 mi
2:18:56
Rank: #10183 (-702)
25K → 30K
8:16/mi
25:42 split
20M
2:30:08
Rank: #10310 (-127)
30K → 20M
8:15/mi
11:12 split
21M
2:38:56
Rank: #10426 (-116)
20M → 21M
8:48/mi
8:48 split
35K· 21.75 mi
2:45:07
Rank: #10544 (-118)
21M → 35K
8:16/mi
6:11 split
23M
2:55:49
Rank: #10700 (-156)
35K → 23M
8:33/mi
10:42 split
24M
3:04:07
Rank: #10788 (-88)
23M → 24M
8:18/mi
8:18 split
40K· 24.85 mi
3:11:26
Rank: #10881 (-93)
24M → 40K
8:33/mi
7:19 split
25.2M
3:14:34
Rank: #10901 (-20)
40K → 25.2M
9:05/mi
3:08 split
Finish· 26.22 mi
3:22:37
Rank: #10923 (-22)
25.2M → Finish
7:54/mi
8:03 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:25
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:48:12
Pace8:15 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3521:316:5621:31
6:56
-
10K
6.21 mi11:13:4043:367:0122:05
7:06
+0:10
15K
9.32 mi11:36:071:06:037:0522:27
7:14
+0:08
20K
12.43 mi11:59:231:29:197:1123:16
7:29
+0:15
Half
13.11 mi12:04:291:34:257:125:06
7:29
0:00
25K
15.53 mi12:23:181:53:147:1718:49
7:46
+0:17
30K
18.64 mi12:49:002:18:567:2725:42
8:16
+0:30
20M
20.00 mi13:00:122:30:087:3011:12
8:15
-0:01
21M
21.00 mi13:09:002:38:567:348:48
8:48
+0:33
35K
21.75 mi13:15:112:45:077:366:11
8:16
-0:32
23M
23.00 mi13:25:532:55:497:3910:42
8:33
+0:17
24M
24.00 mi13:34:113:04:077:408:18
8:18
-0:15
40K
24.85 mi13:41:303:11:267:427:19
8:33
+0:15
25.2M
25.20 mi13:44:383:14:347:433:08
9:05
+0:32
Finish
26.22 mi13:52:413:22:377:448:03
7:54
-1:11

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

6:56 /mi

Average Pace

7:44 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:17

60% of race

Time at Steady Pace

1:09:24

34% of race

Time at Slower Pace

11:56

6% of race

Average Pace: 7:44 /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 mi10:51:3521:316:5621:31
6:56
#7274
10K
6.21 mi11:13:4043:367:0122:05
7:06
#7990
15K
9.32 mi11:36:071:06:037:0522:27
7:14
#8387
20K
12.43 mi11:59:231:29:197:1123:16
7:29
#8874
Half
13.11 mi12:04:291:34:257:125:06
7:29
#9011
25K
15.53 mi12:23:181:53:147:1718:49
7:46
#9481
30K
18.64 mi12:49:002:18:567:2725:42
8:16
#10183
20M
20.00 mi13:00:122:30:087:3011:12
8:15
#10310
21M
21.00 mi13:09:002:38:567:348:48
8:48
#10426
35K
21.75 mi13:15:112:45:077:366:11
8:16
#10544
23M
23.00 mi13:25:532:55:497:3910:42
8:33
#10700
24M
24.00 mi13:34:113:04:077:408:18
8:18
#10788
40K
24.85 mi13:41:303:11:267:427:19
8:33
#10881
25.2M
25.20 mi13:44:383:14:347:433:08
9:05
#10901
Finish
26.22 mi13:52:413:22:377:448:03
7:54
#10923
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi72747627629355(Top 33%)1590(Top 13%)1590(Top 29%)
10K6.21 mi3.10 mi7990-716993-231993-2318760(Top 31%)1291(Top 11%)1291(Top 24%)
15K9.32 mi3.11 mi8387-3971153-1601153-1609355(Top 33%)1590(Top 13%)1590(Top 29%)
20K12.43 mi3.11 mi8874-4871363-2101363-21010690(Top 38%)2313(Top 19%)2313(Top 42%)
Half13.11 mi0.68 mi9011-1371422-591422-5911551(Top 41%)2710(Top 22%)2710(Top 50%)
25K15.53 mi2.42 mi9481-4701674-2521674-25212039(Top 42%)3133(Top 26%)3133(Top 57%)
30K18.64 mi3.11 mi10183-7022051-3772051-37713310(Top 47%)4001(Top 33%)4001(Top 73%)
20M20.00 mi1.36 mi10310-1272152-1012152-10112081(Top 43%)3485(Top 29%)3485(Top 64%)
21M21.00 mi1.00 mi10426-1162257-1052257-10512301(Top 43%)3752(Top 31%)3752(Top 69%)
35K21.75 mi0.75 mi10544-1182327-702327-7014043(Top 49%)4679(Top 38%)4679(Top 86%)
23M23.00 mi1.25 mi10700-1562461-1342461-13413591(Top 48%)4575(Top 37%)4575(Top 84%)
24M24.00 mi1.00 mi10788-882546-852546-8513269(Top 47%)4444(Top 36%)4444(Top 81%)
40K24.85 mi0.85 mi10881-932628-822628-8213796(Top 49%)4844(Top 40%)4844(Top 89%)
25.2M25.20 mi0.35 mi10901-202659-312659-3112302(Top 43%)4101(Top 34%)4101(Top 75%)
Finish26.22 mi1.02 mi10923-222700-412700-4112178(Top 43%)4015(Top 33%)4015(Top 73%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9355

Females

1590

F18-39

1590

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8760

Females

1291

F18-39

1291

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9355

Females

1590

F18-39

1590

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10690

Females

2313

F18-39

2313

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11551

Females

2710

F18-39

2710

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

12039

Females

3133

F18-39

3133

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

13310

Females

4001

F18-39

4001

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

12081

Females

3485

F18-39

3485

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12301

Females

3752

F18-39

3752

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

14043

Females

4679

F18-39

4679

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

13591

Females

4575

F18-39

4575

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13269

Females

4444

F18-39

4444

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13796

Females

4844

F18-39

4844

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12302

Females

4101

F18-39

4101

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12178

Females

4015

F18-39

4015

Passing Analysis

Category:
Athletes Passed
745
Passed By
4392
Net Change
-3649
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7274
5K → 10K41757-716#7274#7990
10K → 15K52449-397#7990#8387
15K → 20K63550-487#8387#8874
20K → Half8145-137#8874#9011
Half → 25K64534-470#9011#9481
25K → 30K78778-702#9481#10183
30K → 20M84211-127#10183#10310
20M → 21M75191-116#10310#10426
21M → 35K26144-118#10426#10544
35K → 23M71227-156#10544#10700
23M → 24M51139-88#10700#10788
24M → 40K43136-93#10788#10881
40K → 25.2M3555-20#10881#10901
25.2M → Finish5476-22#10901#10923
TOTALS7454392-3649
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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