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BOSTON MARATHON 2025

Alex Stainthorpe

Bib: 9477•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:41
Rank: #5102
Start → 5K
20:41 | 6:39/mi
10K· 6.21 mi
41:11
Rank: #4730 (+372)
5K → 10K
20:30 | 6:36/mi
15K· 9.32 mi
1:01:45
Rank: #4591 (+139)
10K → 15K
20:34 | 6:37/mi
20K· 12.43 mi
1:22:35
Rank: #4521 (+70)
15K → 20K
20:50 | 6:42/mi
Half· 13.11 mi
1:27:07
Rank: #4530 (-9)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:43:26
Rank: #4448 (+82)
Half → 25K
16:19 | 6:44/mi
30K· 18.64 mi
2:05:13
Rank: #4457 (-9)
25K → 30K
21:47 | 7:01/mi
20M
2:15:21
Rank: #4676 (-219)
30K → 20M
10:08 | 7:27/mi
21M
2:23:31
Rank: #4888 (-212)
20M → 21M
8:10 | 8:10/mi
35K· 21.75 mi
2:28:51
Rank: #4926 (-38)
21M → 35K
5:20 | 7:08/mi
23M
2:38:12
Rank: #5043 (-117)
35K → 23M
9:21 | 7:28/mi
24M
2:45:25
Rank: #5070 (-27)
23M → 24M
7:13 | 7:13/mi
40K· 24.85 mi
2:51:47
Rank: #5080 (-10)
24M → 40K
6:22 | 7:27/mi
25.2M
2:54:46
Rank: #5128 (-48)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:03:01
Rank: #5323 (-195)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:07
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:35:54
Pace7:19 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0520:416:3920:41
6:39
-
10K
6.21 mi11:06:3541:116:3820:30
6:36
-0:03
15K
9.32 mi11:27:091:01:456:3820:34
6:37
+0:01
20K
12.43 mi11:47:591:22:356:3920:50
6:42
+0:05
Half
13.11 mi11:52:311:27:076:394:32
6:39
-0:03
25K
15.53 mi12:08:501:43:266:4016:19
6:44
+0:05
30K
18.64 mi12:30:372:05:136:4321:47
7:01
+0:17
20M
20.00 mi12:40:452:15:216:4610:08
7:27
+0:26
21M
21.00 mi12:48:552:23:316:508:10
8:10
+0:43
35K
21.75 mi12:54:152:28:516:515:20
7:08
-1:02
23M
23.00 mi13:03:362:38:126:539:21
7:28
+0:20
24M
24.00 mi13:10:492:45:256:547:13
7:13
-0:15
40K
24.85 mi13:17:112:51:476:556:22
7:27
+0:14
25.2M
25.20 mi13:20:102:54:466:562:59
8:39
+1:12
Finish
26.22 mi13:28:253:03:016:598:15
8:06
-0:33

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

6:36 /mi

Average Pace

6:59 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:26

57% of race

Time at Steady Pace

34:20

19% of race

Time at Slower Pace

45:15

25% of race

Average Pace: 6:59 /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 mi10:46:0520:416:3920:41
6:39
#5102
10K
6.21 mi11:06:3541:116:3820:30
6:36
#4730
15K
9.32 mi11:27:091:01:456:3820:34
6:37
#4591
20K
12.43 mi11:47:591:22:356:3920:50
6:42
#4521
Half
13.11 mi11:52:311:27:076:394:32
6:39
#4530
25K
15.53 mi12:08:501:43:266:4016:19
6:44
#4448
30K
18.64 mi12:30:372:05:136:4321:47
7:01
#4457
20M
20.00 mi12:40:452:15:216:4610:08
7:27
#4676
21M
21.00 mi12:48:552:23:316:508:10
8:10
#4888
35K
21.75 mi12:54:152:28:516:515:20
7:08
#4926
23M
23.00 mi13:03:362:38:126:539:21
7:28
#5043
24M
24.00 mi13:10:492:45:256:547:13
7:13
#5070
40K
24.85 mi13:17:112:51:476:556:22
7:27
#5080
25.2M
25.20 mi13:20:102:54:466:562:59
8:39
#5128
Finish
26.22 mi13:28:253:03:016:598:15
8:06
#5323
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi51023333334419(Top 16%)268(Top 2%)268(Top 5%)
10K6.21 mi3.10 mi4730+372292+41292+414477(Top 16%)274(Top 2%)274(Top 5%)
15K9.32 mi3.11 mi4591+139279+13279+134419(Top 16%)268(Top 2%)268(Top 5%)
20K12.43 mi3.11 mi4521+70276+3276+34499(Top 16%)300(Top 2%)300(Top 5%)
Half13.11 mi0.68 mi4530-9277-1277-14903(Top 17%)351(Top 3%)351(Top 6%)
25K15.53 mi2.42 mi4448+82275+2275+24365(Top 15%)310(Top 3%)310(Top 6%)
30K18.64 mi3.11 mi4457-9287-12287-124772(Top 17%)412(Top 3%)412(Top 8%)
20M20.00 mi1.36 mi4676-219331-44331-446745(Top 24%)1044(Top 9%)1044(Top 19%)
21M21.00 mi1.00 mi4888-212368-37368-378384(Top 30%)1880(Top 15%)1880(Top 34%)
35K21.75 mi0.75 mi4926-38384-16384-166177(Top 22%)967(Top 8%)967(Top 18%)
23M23.00 mi1.25 mi5043-117411-27411-276466(Top 23%)1174(Top 10%)1174(Top 21%)
24M24.00 mi1.00 mi5070-27429-18429-185937(Top 21%)1038(Top 8%)1038(Top 19%)
40K24.85 mi0.85 mi5080-10437-8437-86499(Top 23%)1327(Top 11%)1327(Top 24%)
25.2M25.20 mi0.35 mi5128-48453-16453-169726(Top 34%)2852(Top 23%)2852(Top 52%)
Finish26.22 mi1.02 mi5323-195504-51504-5113562(Top 48%)4720(Top 39%)4720(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4419

Females

268

F18-39

268

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4477

Females

274

F18-39

274

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4419

Females

268

F18-39

268

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4499

Females

300

F18-39

300

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4903

Females

351

F18-39

351

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4365

Females

310

F18-39

310

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4772

Females

412

F18-39

412

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6745

Females

1044

F18-39

1044

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8384

Females

1880

F18-39

1880

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6177

Females

967

F18-39

967

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6466

Females

1174

F18-39

1174

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5937

Females

1038

F18-39

1038

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6499

Females

1327

F18-39

1327

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9726

Females

2852

F18-39

2852

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13562

Females

4720

F18-39

4720

Passing Analysis

Category:
Athletes Passed
1313
Passed By
1534
Net Change
-221
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5102
5K → 10K41038+372#5102#4730
10K → 15K18849+139#4730#4591
15K → 20K14777+70#4591#4521
20K → Half1322-9#4521#4530
Half → 25K14260+82#4530#4448
25K → 30K143152-9#4448#4457
30K → 20M26245-219#4457#4676
20M → 21M24236-212#4676#4888
21M → 35K4987-38#4888#4926
35K → 23M51168-117#4926#5043
23M → 24M5279-27#5043#5070
24M → 40K4757-10#5070#5080
40K → 25.2M957-48#5080#5128
25.2M → Finish12207-195#5128#5323
TOTALS13131534-221
📊

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