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BOSTON MARATHON 2025

Isabelle Jensen

Bib: 11869•F

UT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 34%
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
7:40/mi
23:49
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
47:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:50/mi
1:11:58
↑ 67↓ 78
20K· 12.43 mi
8:04/mi
1:37:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:42:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:02:32
↑ 66↓ 880.2%
30K· 18.64 mi
8:35/mi
2:29:11
↑ 181↓ 1480.2%
20M
8:28/mi
2:40:42
↑ 64↓ 500.2%
21M
8:50/mi
2:49:32
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:55:33
↑ 17↓ 861.7%
23M
8:07/mi
3:05:43
↑ 23↓ 630.6%
24M
7:59/mi
3:13:42
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:20:47
↓ 200.3%
25.2M
8:59/mi
3:23:53
↑ 13↓ 160.2%
Finish· 26.22 mi
7:49/mi
3:31:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:39
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:49:12
Pace8:20 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0123:497:4023:49
7:40
-
10K
6.21 mi11:40:5047:387:4023:49
7:40
0:00
15K
9.32 mi12:05:101:11:587:4324:20
7:50
+0:10
20K
12.43 mi12:30:131:37:017:4825:03
8:04
+0:14
Half
13.11 mi12:35:511:42:397:505:38
8:15
+0:11
25K
15.53 mi12:55:442:02:327:5319:53
8:12
-0:03
30K
18.64 mi13:22:232:29:118:0026:39
8:35
+0:23
20M
20.00 mi13:33:542:40:428:0211:31
8:28
-0:07
21M
21.00 mi13:42:442:49:328:048:50
8:50
+0:22
35K
21.75 mi13:48:452:55:338:046:01
8:03
-0:47
23M
23.00 mi13:58:553:05:438:0410:10
8:07
+0:04
24M
24.00 mi14:06:543:13:428:047:59
7:59
-0:08
40K
24.85 mi14:13:593:20:478:057:05
8:17
+0:18
25.2M
25.20 mi14:17:053:23:538:053:06
8:59
+0:42
Finish
26.22 mi14:25:033:31:518:057:58
7:49
-1:10

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

7:40 /mi

Average Pace

8:05 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:45

76% of race

Time at Steady Pace

50:06

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:05 /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 mi11:17:0123:497:4023:49
7:40
#13675
10K
6.21 mi11:40:5047:387:4023:49
7:40
#13649
15K
9.32 mi12:05:101:11:587:4324:20
7:50
#13939
20K
12.43 mi12:30:131:37:017:4825:03
8:04
#14306
Half
13.11 mi12:35:511:42:397:505:38
8:15
#14478
25K
15.53 mi12:55:442:02:327:5319:53
8:12
#14619
30K
18.64 mi13:22:232:29:118:0026:39
8:35
#14764
20M
20.00 mi13:33:542:40:428:0211:31
8:28
#14628
21M
21.00 mi13:42:442:49:328:048:50
8:50
#14451
35K
21.75 mi13:48:452:55:338:046:01
8:03
#14379
23M
23.00 mi13:58:553:05:438:0410:10
8:07
#14143
24M
24.00 mi14:06:543:13:428:047:59
7:59
#13981
40K
24.85 mi14:13:593:20:478:057:05
8:17
#13877
25.2M
25.20 mi14:17:053:23:538:053:06
8:59
#13816
Finish
26.22 mi14:25:033:31:518:057:58
7:49
#13704
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi136753695369514661(Top 52%)4392(Top 36%)4392(Top 80%)
10K6.21 mi3.10 mi13649+263735-403735-4013606(Top 48%)3728(Top 30%)3728(Top 68%)
15K9.32 mi3.11 mi13939-2903931-1963931-19614661(Top 52%)4392(Top 36%)4392(Top 80%)
20K12.43 mi3.11 mi14306-3674178-2474178-24715370(Top 54%)4841(Top 40%)4841(Top 89%)
Half13.11 mi0.68 mi14478-1724284-1064284-10617655(Top 62%)6109(Top 50%)6109(Top 112%)
25K15.53 mi2.42 mi14619-1414404-1204404-12015321(Top 54%)4906(Top 40%)4906(Top 90%)
30K18.64 mi3.11 mi14764-1454539-1354539-13515250(Top 54%)5043(Top 41%)5043(Top 92%)
20M20.00 mi1.36 mi14628+1364488+514488+5113642(Top 48%)4315(Top 35%)4315(Top 79%)
21M21.00 mi1.00 mi14451+1774408+804408+8012550(Top 44%)3897(Top 32%)3897(Top 71%)
35K21.75 mi0.75 mi14379+724384+244384+2412581(Top 44%)3944(Top 32%)3944(Top 72%)
23M23.00 mi1.25 mi14143+2364310+744310+7410901(Top 38%)3188(Top 26%)3188(Top 58%)
24M24.00 mi1.00 mi13981+1624253+574253+5711170(Top 39%)3402(Top 28%)3402(Top 62%)
40K24.85 mi0.85 mi13877+1044228+254228+2512089(Top 43%)3962(Top 32%)3962(Top 72%)
25.2M25.20 mi0.35 mi13816+614207+214207+2111812(Top 42%)3888(Top 32%)3888(Top 71%)
Finish26.22 mi1.02 mi13704+1124161+464161+4611602(Top 41%)3755(Top 31%)3755(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14661

Females

4392

F18-39

4392

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13606

Females

3728

F18-39

3728

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14661

Females

4392

F18-39

4392

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15370

Females

4841

F18-39

4841

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

17655

Females

6109

F18-39

6109

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

15321

Females

4906

F18-39

4906

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15250

Females

5043

F18-39

5043

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

13642

Females

4315

F18-39

4315

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12550

Females

3897

F18-39

3897

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12581

Females

3944

F18-39

3944

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10901

Females

3188

F18-39

3188

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

11170

Females

3402

F18-39

3402

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12089

Females

3962

F18-39

3962

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11812

Females

3888

F18-39

3888

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11602

Females

3755

F18-39

3755

Passing Analysis

Category:
Athletes Passed
2121
Passed By
2150
Net Change
-29
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13675
5K → 10K297271+26#13675#13649
10K → 15K100390-290#13649#13939
15K → 20K119486-367#13939#14306
20K → Half8180-172#14306#14478
Half → 25K134275-141#14478#14619
25K → 30K203348-145#14619#14764
30K → 20M19963+136#14764#14628
20M → 21M20629+177#14628#14451
21M → 35K9725+72#14451#14379
35K → 23M25115+236#14379#14143
23M → 24M17715+162#14143#13981
24M → 40K13430+104#13981#13877
40K → 25.2M687+61#13877#13816
25.2M → Finish12816+112#13816#13704
TOTALS21212150-29
📊

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