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BOSTON MARATHON 2025

Jennifer Clark

Bib: 26393•F

NH

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:07/mi
28:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:57/mi
56:06
↑ 79↓ 1380.4%
15K· 9.32 mi
10:10/mi
1:27:40
↑ 67↓ 78
20K· 12.43 mi
9:29/mi
1:57:07
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
2:03:29
↑ 19↓ 370.5%
25K· 15.53 mi
10:58/mi
2:30:05
↑ 66↓ 880.2%
30K· 18.64 mi
10:51/mi
3:03:48
↑ 181↓ 1480.2%
20M
10:48/mi
3:18:29
↑ 64↓ 500.2%
21M
11:48/mi
3:30:17
↑ 106↓ 241.6%
35K· 21.75 mi
10:08/mi
3:37:52
↑ 17↓ 861.7%
23M
10:41/mi
3:51:15
↑ 23↓ 630.6%
24M
10:18/mi
4:01:33
↓ 821.3%
40K· 24.85 mi
10:02/mi
4:10:08
↓ 200.3%
25.2M
10:44/mi
4:13:50
↑ 13↓ 160.2%
Finish· 26.22 mi
9:43/mi
4:23:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:29
Pace9:25 /mi
2nd Half
Distance13.11 mi
Time2:20:15
Pace10:42 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:0328:199:0728:19
9:07
-
10K
6.21 mi12:11:5056:069:0227:47
8:57
-0:10
15K
9.32 mi12:43:241:27:409:2431:34
10:10
+1:13
20K
12.43 mi13:12:511:57:079:2529:27
9:29
-0:41
Half
13.11 mi13:19:132:03:299:256:22
9:20
-0:09
25K
15.53 mi13:45:492:30:059:4026:36
10:58
+1:38
30K
18.64 mi14:19:323:03:489:5233:43
10:51
-0:07
20M
20.00 mi14:34:133:18:299:5514:41
10:48
-0:03
21M
21.00 mi14:46:013:30:1710:0111:48
11:48
+1:00
35K
21.75 mi14:53:363:37:5210:017:35
10:08
-1:40
23M
23.00 mi15:06:593:51:1510:0313:23
10:41
+0:33
24M
24.00 mi15:17:174:01:3310:0410:18
10:18
-0:23
40K
24.85 mi15:25:524:10:0810:048:35
10:02
-0:16
25.2M
25.20 mi15:29:344:13:5010:043:42
10:44
+0:42
Finish
26.22 mi15:39:284:23:4410:049:54
9:43
-1:01

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

8:57 /mi

Average Pace

10:04 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:49

39% of race

Time at Steady Pace

58:02

22% of race

Time at Slower Pace

1:43:53

39% of race

Average Pace: 10:04 /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 mi11:44:0328:199:0728:19
9:07
#22902
10K
6.21 mi12:11:5056:069:0227:47
8:57
#22540
15K
9.32 mi12:43:241:27:409:2431:34
10:10
#23772
20K
12.43 mi13:12:511:57:079:2529:27
9:29
#23554
Half
13.11 mi13:19:132:03:299:256:22
9:20
#23520
25K
15.53 mi13:45:492:30:059:4026:36
10:58
#23877
30K
18.64 mi14:19:323:03:489:5233:43
10:51
#23846
20M
20.00 mi14:34:133:18:299:5514:41
10:48
#23802
21M
21.00 mi14:46:013:30:1710:0111:48
11:48
#23768
35K
21.75 mi14:53:363:37:5210:017:35
10:08
#23712
23M
23.00 mi15:06:593:51:1510:0313:23
10:41
#23627
24M
24.00 mi15:17:174:01:3310:0410:18
10:18
#23565
40K
24.85 mi15:25:524:10:0810:048:35
10:02
#23456
25.2M
25.20 mi15:29:344:13:5010:043:42
10:44
#23388
Finish
26.22 mi15:39:284:23:4410:049:54
9:43
#23356
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi229029122912225336(Top 89%)10422(Top 85%)10422(Top 191%)
10K6.21 mi3.10 mi22540+3628912+2108912+21022134(Top 78%)8676(Top 71%)8676(Top 159%)
15K9.32 mi3.11 mi23772-12329557-6459557-64525336(Top 89%)10422(Top 85%)10422(Top 191%)
20K12.43 mi3.11 mi23554+2189434+1239434+12322842(Top 80%)9060(Top 74%)9060(Top 166%)
Half13.11 mi0.68 mi23520+349413+219413+2123098(Top 81%)9211(Top 75%)9211(Top 168%)
25K15.53 mi2.42 mi23877-3579630-2179630-21725168(Top 89%)10385(Top 85%)10385(Top 190%)
30K18.64 mi3.11 mi23846+319649-199649-1923720(Top 84%)9713(Top 79%)9713(Top 178%)
20M20.00 mi1.36 mi23802+449643+69643+623191(Top 82%)9520(Top 78%)9520(Top 174%)
21M21.00 mi1.00 mi23768+349642+19642+123220(Top 82%)9613(Top 79%)9613(Top 176%)
35K21.75 mi0.75 mi23712+569618+249618+2422287(Top 78%)9186(Top 75%)9186(Top 168%)
23M23.00 mi1.25 mi23627+859593+259593+2522506(Top 79%)9346(Top 76%)9346(Top 171%)
24M24.00 mi1.00 mi23565+629582+119582+1122263(Top 78%)9270(Top 76%)9270(Top 170%)
40K24.85 mi0.85 mi23456+1099531+519531+5120595(Top 73%)8463(Top 69%)8463(Top 155%)
25.2M25.20 mi0.35 mi23388+689508+239508+2319888(Top 70%)8116(Top 66%)8116(Top 148%)
Finish26.22 mi1.02 mi23356+329503+59503+521993(Top 77%)9155(Top 75%)9155(Top 167%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

25336

Females

10422

F18-39

10422

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22134

Females

8676

F18-39

8676

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

25336

Females

10422

F18-39

10422

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22842

Females

9060

F18-39

9060

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

23098

Females

9211

F18-39

9211

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

25168

Females

10385

F18-39

10385

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23720

Females

9713

F18-39

9713

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23191

Females

9520

F18-39

9520

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23220

Females

9613

F18-39

9613

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22287

Females

9186

F18-39

9186

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22506

Females

9346

F18-39

9346

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22263

Females

9270

F18-39

9270

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20595

Females

8463

F18-39

8463

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19888

Females

8116

F18-39

8116

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21993

Females

9155

F18-39

9155

Passing Analysis

Category:
Athletes Passed
1678
Passed By
2132
Net Change
-454
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22902
5K → 10K462100+362#22902#22540
10K → 15K211253-1232#22540#23772
15K → 20K26042+218#23772#23554
20K → Half428+34#23554#23520
Half → 25K40397-357#23520#23877
25K → 30K172141+31#23877#23846
30K → 20M9349+44#23846#23802
20M → 21M9561+34#23802#23768
21M → 35K626+56#23768#23712
35K → 23M10823+85#23712#23627
23M → 24M8119+62#23627#23565
24M → 40K1145+109#23565#23456
40K → 25.2M724+68#23456#23388
25.2M → Finish5624+32#23388#23356
TOTALS16782132-454
📊

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