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BOSTON MARATHON 2025

Hailey Janssen

Bib: 10713•F

IN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Female)
#0 / 12228
Top 9%
Division (F18-39)
#0 / 5469
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:27/mi
23:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:13/mi
45:32
↑ 79↓ 1380.4%
15K· 9.32 mi
7:12/mi
1:07:53
↑ 67↓ 78
20K· 12.43 mi
7:02/mi
1:29:44
↑ 106↓ 860.1%
Half· 13.11 mi
6:53/mi
1:34:26
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:51:19
↑ 66↓ 880.2%
30K· 18.64 mi
7:04/mi
2:13:16
↑ 181↓ 1480.2%
20M
7:01/mi
2:22:48
↑ 64↓ 500.2%
21M
7:28/mi
2:30:16
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:35:28
↑ 17↓ 861.7%
23M
7:34/mi
2:44:56
↑ 23↓ 630.6%
24M
7:49/mi
2:52:45
↓ 821.3%
40K· 24.85 mi
8:38/mi
3:00:08
↓ 200.3%
25.2M
8:30/mi
3:03:04
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:10:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:26
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:36:24
Pace7:21 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3123:087:2723:08
7:27
-
10K
6.21 mi11:11:5545:327:2022:24
7:13
-0:14
15K
9.32 mi11:34:161:07:537:1722:21
7:12
-0:01
20K
12.43 mi11:56:071:29:447:1321:51
7:02
-0:10
Half
13.11 mi12:00:491:34:267:124:42
6:53
-0:09
25K
15.53 mi12:17:421:51:197:1016:53
6:58
+0:05
30K
18.64 mi12:39:392:13:167:0921:57
7:04
+0:06
20M
20.00 mi12:49:112:22:487:089:32
7:01
-0:03
21M
21.00 mi12:56:392:30:167:097:28
7:28
+0:27
35K
21.75 mi13:01:512:35:287:095:12
6:57
-0:31
23M
23.00 mi13:11:192:44:567:109:28
7:34
+0:37
24M
24.00 mi13:19:082:52:457:127:49
7:49
+0:15
40K
24.85 mi13:26:313:00:087:157:23
8:38
+0:49
25.2M
25.20 mi13:29:273:03:047:162:56
8:30
-0:08
Finish
26.22 mi13:37:133:10:507:177:46
7:37
-0:53

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

6:53 /mi

Average Pace

7:17 /mi

Slowest Pace

8:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

9:54

5% of race

Time at Steady Pace

2:25:34

76% of race

Time at Slower Pace

35:22

19% of race

Average Pace: 7:17 /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 mi10:49:3123:087:2723:08
7:27
#11757
10K
6.21 mi11:11:5545:327:2022:24
7:13
#10570
15K
9.32 mi11:34:161:07:537:1722:21
7:12
#10069
20K
12.43 mi11:56:071:29:447:1321:51
7:02
#9173
Half
13.11 mi12:00:491:34:267:124:42
6:53
#9020
25K
15.53 mi12:17:421:51:197:1016:53
6:58
#8395
30K
18.64 mi12:39:392:13:167:0921:57
7:04
#7668
20M
20.00 mi12:49:112:22:487:089:32
7:01
#7336
21M
21.00 mi12:56:392:30:167:097:28
7:28
#7100
35K
21.75 mi13:01:512:35:287:095:12
6:57
#6993
23M
23.00 mi13:11:192:44:567:109:28
7:34
#6922
24M
24.00 mi13:19:082:52:457:127:49
7:49
#7000
40K
24.85 mi13:26:313:00:087:157:23
8:38
#7199
25.2M
25.20 mi13:29:273:03:047:162:56
8:30
#7217
Finish
26.22 mi13:37:133:10:507:177:46
7:37
#7285
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi11757265226529072(Top 32%)1453(Top 12%)1453(Top 27%)
10K6.21 mi3.10 mi10570+11872085+5672085+5679590(Top 34%)1635(Top 13%)1635(Top 30%)
15K9.32 mi3.11 mi10069+5011869+2161869+2169072(Top 32%)1453(Top 12%)1453(Top 27%)
20K12.43 mi3.11 mi9173+8961487+3821487+3827096(Top 25%)804(Top 7%)804(Top 15%)
Half13.11 mi0.68 mi9020+1531425+621425+626899(Top 24%)757(Top 6%)757(Top 14%)
25K15.53 mi2.42 mi8395+6251201+2241201+2246088(Top 21%)611(Top 5%)611(Top 11%)
30K18.64 mi3.11 mi7668+727981+220981+2205124(Top 18%)475(Top 4%)475(Top 9%)
20M20.00 mi1.36 mi7336+332900+81900+814230(Top 15%)363(Top 3%)363(Top 7%)
21M21.00 mi1.00 mi7100+236861+39861+394489(Top 16%)489(Top 4%)489(Top 9%)
35K21.75 mi0.75 mi6993+107843+18843+185112(Top 18%)644(Top 5%)644(Top 12%)
23M23.00 mi1.25 mi6922+71859-16859-167006(Top 25%)1398(Top 11%)1398(Top 26%)
24M24.00 mi1.00 mi7000-78921-62921-629937(Top 35%)2767(Top 23%)2767(Top 51%)
40K24.85 mi0.85 mi7199-1991013-921013-9214270(Top 50%)5099(Top 42%)5099(Top 93%)
25.2M25.20 mi0.35 mi7217-181029-161029-168844(Top 31%)2428(Top 20%)2428(Top 44%)
Finish26.22 mi1.02 mi7285-681083-541083-5410115(Top 36%)3035(Top 25%)3035(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

9072

Females

1453

F18-39

1453

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9590

Females

1635

F18-39

1635

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

9072

Females

1453

F18-39

1453

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

7096

Females

804

F18-39

804

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6899

Females

757

F18-39

757

Half→25K

13.1 - 15.5 mi

Top 21%
×4story building
+66ft-88ft

Overall

6088

Females

611

F18-39

611

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

5124

Females

475

F18-39

475

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4230

Females

363

F18-39

363

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4489

Females

489

F18-39

489

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

5112

Females

644

F18-39

644

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

7006

Females

1398

F18-39

1398

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9937

Females

2767

F18-39

2767

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14270

Females

5099

F18-39

5099

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8844

Females

2428

F18-39

2428

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10115

Females

3035

F18-39

3035

Passing Analysis

Category:
Athletes Passed
5063*
Passed By
591
Net Change
+4472
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11757
5K → 10K120720+1187#11757#10570
10K → 15K51413+501#10570#10069
15K → 20K897*1+896#10069#9173
20K → Half1552+153#9173#9020
Half → 25K6261+625#9020#8395
25K → 30K7281+727#8395#7668
30K → 20M3320+332#7668#7336
20M → 21M2404+236#7336#7100
21M → 35K1125+107#7100#6993
35K → 23M12655+71#6993#6922
23M → 24M46124-78#6922#7000
24M → 40K18217-199#7000#7199
40K → 25.2M2442-18#7199#7217
25.2M → Finish38106-68#7217#7285
TOTALS5063*591+4472

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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