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BOSTON MARATHON 2025

Stephanie Cohen

Bib: 10398•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:35
Rank: #7422
Start → 5K
6:57/mi
21:35 split
10K· 6.21 mi
42:30
Rank: #6673 (+749)
5K → 10K
6:44/mi
20:55 split
15K· 9.32 mi
1:03:31
Rank: #6351 (+322)
10K → 15K
6:46/mi
21:01 split
20K· 12.43 mi
1:25:04
Rank: #6366 (-15)
15K → 20K
6:56/mi
21:33 split
Half· 13.11 mi
1:29:41
Rank: #6329 (+37)
20K → Half
6:46/mi
4:37 split
25K· 15.53 mi
1:46:38
Rank: #6297 (+32)
Half → 25K
6:59/mi
16:57 split
30K· 18.64 mi
2:08:56
Rank: #6084 (+213)
25K → 30K
7:11/mi
22:18 split
20M
2:18:38
Rank: #5956 (+128)
30K → 20M
7:08/mi
9:42 split
21M
2:26:15
Rank: #5837 (+119)
20M → 21M
7:37/mi
7:37 split
35K· 21.75 mi
2:31:13
Rank: #5719 (+118)
21M → 35K
6:38/mi
4:58 split
23M
2:39:55
Rank: #5520 (+199)
35K → 23M
6:57/mi
8:42 split
24M
2:46:29
Rank: #5338 (+182)
23M → 24M
6:34/mi
6:34 split
40K· 24.85 mi
2:52:20
Rank: #5209 (+129)
24M → 40K
6:51/mi
5:51 split
25.2M
2:55:01
Rank: #5182 (+27)
40K → 25.2M
7:47/mi
2:41 split
Finish· 26.22 mi
3:01:47
Rank: #5068 (+114)
25.2M → Finish
6:38/mi
6:46 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:41
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:32:06
Pace7:02 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4721:356:5721:35
6:57
-
10K
6.21 mi11:08:4242:306:5020:55
6:44
-0:13
15K
9.32 mi11:29:431:03:316:4921:01
6:46
+0:02
20K
12.43 mi11:51:161:25:046:5121:33
6:56
+0:10
Half
13.11 mi11:55:531:29:416:504:37
6:46
-0:10
25K
15.53 mi12:12:501:46:386:5216:57
6:59
+0:13
30K
18.64 mi12:35:082:08:566:5522:18
7:11
+0:12
20M
20.00 mi12:44:502:18:386:569:42
7:08
-0:03
21M
21.00 mi12:52:272:26:156:587:37
7:37
+0:29
35K
21.75 mi12:57:252:31:136:574:58
6:38
-0:59
23M
23.00 mi13:06:072:39:556:578:42
6:57
+0:19
24M
24.00 mi13:12:412:46:296:566:34
6:34
-0:23
40K
24.85 mi13:18:322:52:206:565:51
6:51
+0:17
25.2M
25.20 mi13:21:132:55:016:572:41
7:47
+0:56
Finish
26.22 mi13:27:593:01:476:566:46
6:38
-1:09

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

6:34 /mi

Average Pace

6:56 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:29

94% of race

Time at Steady Pace

7:37

4% of race

Time at Slower Pace

2:41

1% of race

Average Pace: 6:56 /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 mi10:47:4721:356:5721:35
6:57
#7422
10K
6.21 mi11:08:4242:306:5020:55
6:44
#6673
15K
9.32 mi11:29:431:03:316:4921:01
6:46
#6351
20K
12.43 mi11:51:161:25:046:5121:33
6:56
#6366
Half
13.11 mi11:55:531:29:416:504:37
6:46
#6329
25K
15.53 mi12:12:501:46:386:5216:57
6:59
#6297
30K
18.64 mi12:35:082:08:566:5522:18
7:11
#6084
20M
20.00 mi12:44:502:18:386:569:42
7:08
#5956
21M
21.00 mi12:52:272:26:156:587:37
7:37
#5837
35K
21.75 mi12:57:252:31:136:574:58
6:38
#5719
23M
23.00 mi13:06:072:39:556:578:42
6:57
#5520
24M
24.00 mi13:12:412:46:296:566:34
6:34
#5338
40K
24.85 mi13:18:322:52:206:565:51
6:51
#5209
25.2M
25.20 mi13:21:132:55:016:572:41
7:47
#5182
Finish
26.22 mi13:27:593:01:476:566:46
6:38
#5068
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi74227937935755(Top 20%)495(Top 4%)495(Top 9%)
10K6.21 mi3.10 mi6673+749616+177616+1775669(Top 20%)455(Top 4%)455(Top 8%)
15K9.32 mi3.11 mi6351+322551+65551+655755(Top 20%)495(Top 4%)495(Top 9%)
20K12.43 mi3.11 mi6366-15580-29580-296486(Top 23%)655(Top 5%)655(Top 12%)
Half13.11 mi0.68 mi6329+37575+5575+55923(Top 21%)521(Top 4%)521(Top 10%)
25K15.53 mi2.42 mi6297+32584-9584-96285(Top 22%)661(Top 5%)661(Top 12%)
30K18.64 mi3.11 mi6084+213576+8576+85785(Top 20%)616(Top 5%)616(Top 11%)
20M20.00 mi1.36 mi5956+128555+21555+214895(Top 17%)476(Top 4%)476(Top 9%)
21M21.00 mi1.00 mi5837+119541+14541+145235(Top 18%)667(Top 5%)667(Top 12%)
35K21.75 mi0.75 mi5719+118517+24517+243220(Top 11%)269(Top 2%)269(Top 5%)
23M23.00 mi1.25 mi5520+199497+20497+203498(Top 12%)317(Top 3%)317(Top 6%)
24M24.00 mi1.00 mi5338+182468+29468+292380(Top 8%)175(Top 1%)175(Top 3%)
40K24.85 mi0.85 mi5209+129459+9459+93102(Top 11%)309(Top 3%)309(Top 6%)
25.2M25.20 mi0.35 mi5182+27460-1460-14832(Top 17%)799(Top 7%)799(Top 15%)
Finish26.22 mi1.02 mi5068+114452+8452+83595(Top 13%)449(Top 4%)449(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5755

Females

495

F18-39

495

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5669

Females

455

F18-39

455

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5755

Females

495

F18-39

495

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

6486

Females

655

F18-39

655

20K→Half

12.4 - 13.1 mi

Top 21%
×2story building
+19ft-37ft

Overall

5923

Females

521

F18-39

521

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6285

Females

661

F18-39

661

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5785

Females

616

F18-39

616

30K→20M

18.6 - 20.0 mi

Top 17%
×5story building
+64ft-50ft

Overall

4895

Females

476

F18-39

476

20M→21M

20.0 - 21.0 mi

Top 18%
×8story building
+106ft-24ft

Overall

5235

Females

667

F18-39

667

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

3220

Females

269

F18-39

269

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3498

Females

317

F18-39

317

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2380

Females

175

F18-39

175

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3102

Females

309

F18-39

309

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4832

Females

799

F18-39

799

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3595

Females

449

F18-39

449

Passing Analysis

Category:
Athletes Passed
2780
Passed By
426
Net Change
+2354
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7422
5K → 10K76314+749#7422#6673
10K → 15K35230+322#6673#6351
15K → 20K136151-15#6351#6366
20K → Half4710+37#6366#6329
Half → 25K133101+32#6329#6297
25K → 30K27865+213#6297#6084
30K → 20M14517+128#6084#5956
20M → 21M13718+119#5956#5837
21M → 35K1224+118#5837#5719
35K → 23M2045+199#5719#5520
23M → 24M1831+182#5520#5338
24M → 40K1301+129#5338#5209
40K → 25.2M325+27#5209#5182
25.2M → Finish1184+114#5182#5068
TOTALS2780426+2354
📊

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