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BOSTON MARATHON 2025

Jennifer Stewart

Bib: 16805•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F45-49)
#0 / 1813
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
7:43/mi
23:59
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
49:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:14:33
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:40:38
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:46:12
↑ 19↓ 370.5%
25K· 15.53 mi
8:37/mi
2:07:05
↑ 66↓ 880.2%
30K· 18.64 mi
9:20/mi
2:36:05
↑ 181↓ 1480.2%
20M
9:10/mi
2:48:33
↑ 64↓ 500.2%
21M
10:45/mi
2:59:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
3:05:43
↑ 17↓ 861.7%
23M
9:06/mi
3:17:07
↑ 23↓ 630.6%
24M
8:48/mi
3:25:55
↓ 821.3%
40K· 24.85 mi
9:11/mi
3:33:46
↓ 200.3%
25.2M
9:57/mi
3:37:12
↑ 13↓ 160.2%
Finish· 26.22 mi
9:05/mi
3:46:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:12
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time2:00:15
Pace9:10 /mi
📊Positive Split: 13.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:0723:597:4323:59
7:43
-
10K
6.21 mi11:23:0849:007:5325:01
8:03
+0:20
15K
9.32 mi11:48:411:14:338:0025:33
8:13
+0:10
20K
12.43 mi12:14:461:40:388:0626:05
8:24
+0:11
Half
13.11 mi12:20:201:46:128:065:34
8:10
-0:14
25K
15.53 mi12:41:132:07:058:1120:53
8:37
+0:27
30K
18.64 mi13:10:132:36:058:2229:00
9:20
+0:43
20M
20.00 mi13:22:412:48:338:2612:28
9:10
-0:10
21M
21.00 mi13:33:262:59:188:3210:45
10:45
+1:35
35K
21.75 mi13:39:513:05:438:326:25
8:35
-2:10
23M
23.00 mi13:51:153:17:078:3411:24
9:06
+0:31
24M
24.00 mi14:00:033:25:558:358:48
8:48
-0:18
40K
24.85 mi14:07:543:33:468:367:51
9:11
+0:23
25.2M
25.20 mi14:11:203:37:128:373:26
9:57
+0:46
Finish
26.22 mi14:20:353:46:278:399:15
9:05
-0:52

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

7:43 /mi

Average Pace

8:39 /mi

Slowest Pace

10:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:12

47% of race

Time at Steady Pace

1:09:13

31% of race

Time at Slower Pace

51:02

23% of race

Average Pace: 8:38 /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 mi10:58:0723:597:4323:59
7:43
#14154
10K
6.21 mi11:23:0849:007:5325:01
8:03
#15549
15K
9.32 mi11:48:411:14:338:0025:33
8:13
#16321
20K
12.43 mi12:14:461:40:388:0626:05
8:24
#16668
Half
13.11 mi12:20:201:46:128:065:34
8:10
#16683
25K
15.53 mi12:41:132:07:058:1120:53
8:37
#16845
30K
18.64 mi13:10:132:36:058:2229:00
9:20
#17292
20M
20.00 mi13:22:412:48:338:2612:28
9:10
#17316
21M
21.00 mi13:33:262:59:188:3210:45
10:45
#17607
35K
21.75 mi13:39:513:05:438:326:25
8:35
#17540
23M
23.00 mi13:51:153:17:078:3411:24
9:06
#17477
24M
24.00 mi14:00:033:25:558:358:48
8:48
#17418
40K
24.85 mi14:07:543:33:468:367:51
9:11
#17416
25.2M
25.20 mi14:11:203:37:128:373:26
9:57
#17412
Finish
26.22 mi14:20:353:46:278:399:15
9:05
#17480
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi141544010401017562(Top 62%)6054(Top 50%)6054(Top 334%)
10K6.21 mi3.10 mi15549-13954871-8614871-86116872(Top 59%)5631(Top 46%)5631(Top 311%)
15K9.32 mi3.11 mi16321-7725327-4565327-45617562(Top 62%)6054(Top 50%)6054(Top 334%)
20K12.43 mi3.11 mi16668-3475541-2145541-21417535(Top 62%)6071(Top 50%)6071(Top 335%)
Half13.11 mi0.68 mi16683-155551-105551-1017087(Top 60%)5825(Top 48%)5825(Top 321%)
25K15.53 mi2.42 mi16845-1625672-1215672-12117884(Top 63%)6362(Top 52%)6362(Top 351%)
30K18.64 mi3.11 mi17292-4475990-3185990-31819269(Top 68%)7265(Top 59%)7265(Top 401%)
20M20.00 mi1.36 mi17316-246036-466036-4617665(Top 62%)6509(Top 53%)6509(Top 359%)
21M21.00 mi1.00 mi17607-2916224-1886224-18820727(Top 73%)8302(Top 68%)8302(Top 458%)
35K21.75 mi0.75 mi17540+676208+166208+1615988(Top 56%)5779(Top 47%)5779(Top 319%)
23M23.00 mi1.25 mi17477+636212-46212-416857(Top 59%)6364(Top 52%)6364(Top 351%)
24M24.00 mi1.00 mi17418+596202+106202+1016348(Top 58%)6128(Top 50%)6128(Top 338%)
40K24.85 mi0.85 mi17416+26227-256227-2517278(Top 61%)6736(Top 55%)6736(Top 372%)
25.2M25.20 mi0.35 mi17412+46236-96236-916870(Top 59%)6524(Top 53%)6524(Top 360%)
Finish26.22 mi1.02 mi17480-686302-666302-6619420(Top 68%)7820(Top 64%)7820(Top 431%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17562

Females

6054

F45-49

6054

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16872

Females

5631

F45-49

5631

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17562

Females

6054

F45-49

6054

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17535

Females

6071

F45-49

6071

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

17087

Females

5825

F45-49

5825

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

17884

Females

6362

F45-49

6362

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19269

Females

7265

F45-49

7265

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17665

Females

6509

F45-49

6509

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20727

Females

8302

F45-49

8302

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15988

Females

5779

F45-49

5779

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16857

Females

6364

F45-49

6364

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16348

Females

6128

F45-49

6128

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17278

Females

6736

F45-49

6736

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16870

Females

6524

F45-49

6524

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19420

Females

7820

F45-49

7820

Passing Analysis

Category:
Athletes Passed
1098
Passed By
4424
Net Change
-3326
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14154
5K → 10K361431-1395#14154#15549
10K → 15K57829-772#15549#16321
15K → 20K107454-347#16321#16668
20K → Half3247-15#16668#16683
Half → 25K108270-162#16683#16845
25K → 30K116563-447#16845#17292
30K → 20M103127-24#17292#17316
20M → 21M46337-291#17316#17607
21M → 35K9629+67#17607#17540
35K → 23M14481+63#17540#17477
23M → 24M10546+59#17477#17418
24M → 40K7169+2#17418#17416
40K → 25.2M3430+4#17416#17412
25.2M → Finish43111-68#17412#17480
TOTALS10984424-3326
📊

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