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BOSTON MARATHON 2025

Samantha Collett

Bib: 13286•F

GA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:14
Rank: #3944
Start → 5K
20:14 | 6:31/mi
10K· 6.21 mi
40:26
Rank: #3841 (+103)
5K → 10K
20:12 | 6:30/mi
15K· 9.32 mi
1:00:30
Rank: #3635 (+206)
10K → 15K
20:04 | 6:28/mi
20K· 12.43 mi
1:20:52
Rank: #3570 (+65)
15K → 20K
20:22 | 6:33/mi
Half· 13.11 mi
1:25:16
Rank: #3546 (+24)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:41:12
Rank: #3487 (+59)
Half → 25K
15:56 | 6:34/mi
30K· 18.64 mi
2:02:26
Rank: #3441 (+46)
25K → 30K
21:14 | 6:50/mi
20M
2:11:56
Rank: #3458 (-17)
30K → 20M
9:30 | 6:59/mi
21M
2:19:20
Rank: #3478 (-20)
20M → 21M
7:24 | 7:24/mi
35K· 21.75 mi
2:24:24
Rank: #3451 (+27)
21M → 35K
5:04 | 6:46/mi
23M
2:33:20
Rank: #3453 (-2)
35K → 23M
8:56 | 7:08/mi
24M
2:40:24
Rank: #3488 (-35)
23M → 24M
7:04 | 7:04/mi
40K· 24.85 mi
2:46:31
Rank: #3509 (-21)
24M → 40K
6:07 | 7:09/mi
25.2M
2:49:14
Rank: #3520 (-11)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
2:56:20
Rank: #3579 (-59)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:16
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:31:04
Pace6:57 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4920:146:3120:14
6:31
-
10K
6.21 mi11:09:0140:266:3020:12
6:30
-0:01
15K
9.32 mi11:29:051:00:306:2920:04
6:28
-0:02
20K
12.43 mi11:49:271:20:526:3020:22
6:33
+0:05
Half
13.11 mi11:53:511:25:166:304:24
6:27
-0:06
25K
15.53 mi12:09:471:41:126:3115:56
6:34
+0:07
30K
18.64 mi12:31:012:02:266:3421:14
6:50
+0:16
20M
20.00 mi12:40:312:11:566:369:30
6:59
+0:09
21M
21.00 mi12:47:552:19:206:387:24
7:24
+0:25
35K
21.75 mi12:52:592:24:246:385:04
6:46
-0:38
23M
23.00 mi13:01:552:33:206:408:56
7:08
+0:22
24M
24.00 mi13:08:592:40:246:417:04
7:04
-0:04
40K
24.85 mi13:15:062:46:316:426:07
7:09
+0:05
25.2M
25.20 mi13:17:492:49:146:432:43
7:53
+0:44
Finish
26.22 mi13:24:552:56:206:447:06
6:58
-0:55

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

6:27 /mi

Average Pace

6:44 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:12

57% of race

Time at Steady Pace

42:54

24% of race

Time at Slower Pace

32:14

18% of race

Average Pace: 6:44 /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 mi10:48:4920:146:3120:14
6:31
#3944
10K
6.21 mi11:09:0140:266:3020:12
6:30
#3841
15K
9.32 mi11:29:051:00:306:2920:04
6:28
#3635
20K
12.43 mi11:49:271:20:526:3020:22
6:33
#3570
Half
13.11 mi11:53:511:25:166:304:24
6:27
#3546
25K
15.53 mi12:09:471:41:126:3115:56
6:34
#3487
30K
18.64 mi12:31:012:02:266:3421:14
6:50
#3441
20M
20.00 mi12:40:312:11:566:369:30
6:59
#3458
21M
21.00 mi12:47:552:19:206:387:24
7:24
#3478
35K
21.75 mi12:52:592:24:246:385:04
6:46
#3451
23M
23.00 mi13:01:552:33:206:408:56
7:08
#3453
24M
24.00 mi13:08:592:40:246:417:04
7:04
#3488
40K
24.85 mi13:15:062:46:316:426:07
7:09
#3509
25.2M
25.20 mi13:17:492:49:146:432:43
7:53
#3520
Finish
26.22 mi13:24:552:56:206:447:06
6:58
#3579
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi39442042043312(Top 12%)163(Top 1%)163(Top 3%)
10K6.21 mi3.10 mi3841+103202+2202+23756(Top 13%)205(Top 2%)205(Top 4%)
15K9.32 mi3.11 mi3635+206189+13189+133312(Top 12%)163(Top 1%)163(Top 3%)
20K12.43 mi3.11 mi3570+65183+6183+63460(Top 12%)176(Top 1%)176(Top 3%)
Half13.11 mi0.68 mi3546+24180+3180+33439(Top 12%)174(Top 1%)174(Top 3%)
25K15.53 mi2.42 mi3487+59175+5175+53304(Top 12%)171(Top 1%)171(Top 3%)
30K18.64 mi3.11 mi3441+46178-3178-33671(Top 13%)261(Top 2%)261(Top 5%)
20M20.00 mi1.36 mi3458-17181-3181-34077(Top 14%)329(Top 3%)329(Top 6%)
21M21.00 mi1.00 mi3478-20187-6187-64137(Top 15%)396(Top 3%)396(Top 7%)
35K21.75 mi0.75 mi3451+27185+2185+23998(Top 14%)392(Top 3%)392(Top 7%)
23M23.00 mi1.25 mi3453-2194-9194-94532(Top 16%)538(Top 4%)538(Top 10%)
24M24.00 mi1.00 mi3488-35205-11205-115047(Top 18%)731(Top 6%)731(Top 13%)
40K24.85 mi0.85 mi3509-21213-8213-84816(Top 17%)712(Top 6%)712(Top 13%)
25.2M25.20 mi0.35 mi3520-11221-8221-85338(Top 19%)968(Top 8%)968(Top 18%)
Finish26.22 mi1.02 mi3579-59232-11232-115529(Top 19%)1058(Top 9%)1058(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3312

Females

163

F18-39

163

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3756

Females

205

F18-39

205

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3312

Females

163

F18-39

163

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3460

Females

176

F18-39

176

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3439

Females

174

F18-39

174

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3304

Females

171

F18-39

171

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3671

Females

261

F18-39

261

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

4077

Females

329

F18-39

329

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4137

Females

396

F18-39

396

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3998

Females

392

F18-39

392

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4532

Females

538

F18-39

538

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5047

Females

731

F18-39

731

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4816

Females

712

F18-39

712

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5338

Females

968

F18-39

968

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5529

Females

1058

F18-39

1058

Passing Analysis

Category:
Athletes Passed
1159
Passed By
794
Net Change
+365
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3944
5K → 10K19794+103#3944#3841
10K → 15K23327+206#3841#3635
15K → 20K12863+65#3635#3570
20K → Half3410+24#3570#3546
Half → 25K9536+59#3546#3487
25K → 30K12882+46#3487#3441
30K → 20M5875-17#3441#3458
20M → 21M4464-20#3458#3478
21M → 35K4821+27#3478#3451
35K → 23M6466-2#3451#3453
23M → 24M3772-35#3453#3488
24M → 40K3960-21#3488#3509
40K → 25.2M2233-11#3509#3520
25.2M → Finish3291-59#3520#3579
TOTALS1159794+365
📊

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