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BOSTON MARATHON 2025

Sam Starks

Bib: 15739•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 32%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:50
Rank: #13724
Start → 5K
23:50 | 7:40/mi
10K· 6.21 mi
47:33
Rank: #13531 (+193)
5K → 10K
23:43 | 7:38/mi
15K· 9.32 mi
1:11:10
Rank: #13193 (+338)
10K → 15K
23:37 | 7:36/mi
20K· 12.43 mi
1:34:57
Rank: #12844 (+349)
15K → 20K
23:47 | 7:39/mi
Half· 13.11 mi
1:40:09
Rank: #12836 (+8)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:59:23
Rank: #12912 (-76)
Half → 25K
19:14 | 7:56/mi
30K· 18.64 mi
2:25:41
Rank: #13228 (-316)
25K → 30K
26:18 | 8:28/mi
20M
2:37:29
Rank: #13331 (-103)
30K → 20M
11:48 | 8:41/mi
21M
2:46:29
Rank: #13302 (+29)
20M → 21M
9:00 | 9:00/mi
35K· 21.75 mi
2:52:43
Rank: #13347 (-45)
21M → 35K
6:14 | 8:20/mi
23M
3:03:29
Rank: #13352 (-5)
35K → 23M
10:46 | 8:36/mi
24M
3:11:55
Rank: #13378 (-26)
23M → 24M
8:26 | 8:26/mi
40K· 24.85 mi
3:19:16
Rank: #13385 (-7)
24M → 40K
7:21 | 8:36/mi
25.2M
3:22:27
Rank: #13376 (+9)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:30:35
Rank: #13364 (+12)
25.2M → Finish
8:08 | 7:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:09
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:50:26
Pace8:25 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:1223:507:4023:50
7:40
-
10K
6.21 mi11:20:5547:337:3923:43
7:38
-0:02
15K
9.32 mi11:44:321:11:107:3823:37
7:36
-0:02
20K
12.43 mi12:08:191:34:577:3823:47
7:39
+0:03
Half
13.11 mi12:13:311:40:097:385:12
7:37
-0:02
25K
15.53 mi12:32:451:59:237:4119:14
7:56
+0:19
30K
18.64 mi12:59:032:25:417:4926:18
8:28
+0:32
20M
20.00 mi13:10:512:37:297:5211:48
8:41
+0:13
21M
21.00 mi13:19:512:46:297:569:00
9:00
+0:19
35K
21.75 mi13:26:052:52:437:576:14
8:20
-0:40
23M
23.00 mi13:36:513:03:297:5910:46
8:36
+0:16
24M
24.00 mi13:45:173:11:558:008:26
8:26
-0:10
40K
24.85 mi13:52:383:19:168:017:21
8:36
+0:10
25.2M
25.20 mi13:55:493:22:278:023:11
9:14
+0:38
Finish
26.22 mi14:03:573:30:358:028:08
7:59
-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

7:36 /mi

Average Pace

8:02 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:31

61% of race

Time at Steady Pace

40:58

19% of race

Time at Slower Pace

42:06

20% of race

Average Pace: 8:02 /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 mi10:57:1223:507:4023:50
7:40
#13724
10K
6.21 mi11:20:5547:337:3923:43
7:38
#13531
15K
9.32 mi11:44:321:11:107:3823:37
7:36
#13193
20K
12.43 mi12:08:191:34:577:3823:47
7:39
#12844
Half
13.11 mi12:13:311:40:097:385:12
7:37
#12836
25K
15.53 mi12:32:451:59:237:4119:14
7:56
#12912
30K
18.64 mi12:59:032:25:417:4926:18
8:28
#13228
20M
20.00 mi13:10:512:37:297:5211:48
8:41
#13331
21M
21.00 mi13:19:512:46:297:569:00
9:00
#13302
35K
21.75 mi13:26:052:52:437:576:14
8:20
#13347
23M
23.00 mi13:36:513:03:297:5910:46
8:36
#13352
24M
24.00 mi13:45:173:11:558:008:26
8:26
#13378
40K
24.85 mi13:52:383:19:168:017:21
8:36
#13385
25.2M
25.20 mi13:55:493:22:278:023:11
9:14
#13376
Finish
26.22 mi14:03:573:30:358:028:08
7:59
#13364
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi137243724372412621(Top 44%)3233(Top 26%)3233(Top 59%)
10K6.21 mi3.10 mi13531+1933665+593665+5913323(Top 47%)3566(Top 29%)3566(Top 65%)
15K9.32 mi3.11 mi13193+3383510+1553510+15512621(Top 44%)3233(Top 26%)3233(Top 59%)
20K12.43 mi3.11 mi12844+3493353+1573353+15712012(Top 42%)3007(Top 25%)3007(Top 55%)
Half13.11 mi0.68 mi12836+83358-53358-512851(Top 45%)3430(Top 28%)3430(Top 63%)
25K15.53 mi2.42 mi12912-763426-683426-6813379(Top 47%)3868(Top 32%)3868(Top 71%)
30K18.64 mi3.11 mi13228-3163684-2583684-25814551(Top 51%)4651(Top 38%)4651(Top 85%)
20M20.00 mi1.36 mi13331-1033761-773761-7714949(Top 53%)5008(Top 41%)5008(Top 92%)
21M21.00 mi1.00 mi13302+293776-153776-1513525(Top 48%)4373(Top 36%)4373(Top 80%)
35K21.75 mi0.75 mi13347-453825-493825-4914494(Top 51%)4948(Top 40%)4948(Top 90%)
23M23.00 mi1.25 mi13352-53869-443869-4413928(Top 49%)4758(Top 39%)4758(Top 87%)
24M24.00 mi1.00 mi13378-263908-393908-3914110(Top 50%)4876(Top 40%)4876(Top 89%)
40K24.85 mi0.85 mi13385-73938-303938-3014053(Top 49%)4990(Top 41%)4990(Top 91%)
25.2M25.20 mi0.35 mi13376+93944-63944-613140(Top 46%)4559(Top 37%)4559(Top 83%)
Finish26.22 mi1.02 mi13364+123965-213965-2112775(Top 45%)4318(Top 35%)4318(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

12621

Females

3233

F18-39

3233

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

13323

Females

3566

F18-39

3566

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

12621

Females

3233

F18-39

3233

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

12012

Females

3007

F18-39

3007

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

12851

Females

3430

F18-39

3430

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

13379

Females

3868

F18-39

3868

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14551

Females

4651

F18-39

4651

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14949

Females

5008

F18-39

5008

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

13525

Females

4373

F18-39

4373

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14494

Females

4948

F18-39

4948

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

13928

Females

4758

F18-39

4758

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14110

Females

4876

F18-39

4876

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

14053

Females

4990

F18-39

4990

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13140

Females

4559

F18-39

4559

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12775

Females

4318

F18-39

4318

Passing Analysis

Category:
Athletes Passed
2134
Passed By
1774
Net Change
+360
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13724
5K → 10K392199+193#13724#13531
10K → 15K40062+338#13531#13193
15K → 20K40556+349#13193#12844
20K → Half4133+8#12844#12836
Half → 25K132208-76#12836#12912
25K → 30K161477-316#12912#13228
30K → 20M77180-103#13228#13331
20M → 21M11889+29#13331#13302
21M → 35K5398-45#13302#13347
35K → 23M103108-5#13347#13352
23M → 24M6793-26#13352#13378
24M → 40K7380-7#13378#13385
40K → 25.2M4435+9#13385#13376
25.2M → Finish6856+12#13376#13364
TOTALS21341774+360
📊

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