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BOSTON MARATHON 2025

Jackie Smith

Bib: 21657•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:51
Rank: #16601
Start → 5K
8:00/mi
24:51 split
10K· 6.21 mi
51:04
Rank: #18106 (-1505)
5K → 10K
8:26/mi
26:13 split
15K· 9.32 mi
1:16:39
Rank: #17920 (+186)
10K → 15K
8:14/mi
25:35 split
20K· 12.43 mi
1:45:17
Rank: #19096 (-1176)
15K → 20K
9:13/mi
28:38 split
Half· 13.11 mi
1:51:10
Rank: #19130 (-34)
20K → Half
8:37/mi
5:53 split
25K· 15.53 mi
2:15:21
Rank: #20140 (-1010)
Half → 25K
9:58/mi
24:11 split
30K· 18.64 mi
2:47:02
Rank: #20687 (-547)
25K → 30K
10:12/mi
31:41 split
20M
2:59:37
Rank: #20471 (+216)
30K → 20M
9:16/mi
12:35 split
21M
3:09:24
Rank: #20291 (+180)
20M → 21M
9:47/mi
9:47 split
35K· 21.75 mi
3:16:22
Rank: #20257 (+34)
21M → 35K
9:19/mi
6:58 split
23M
3:30:06
Rank: #20528 (-271)
35K → 23M
10:58/mi
13:44 split
24M
3:39:21
Rank: #20471 (+57)
23M → 24M
9:15/mi
9:15 split
40K· 24.85 mi
3:47:31
Rank: #20421 (+50)
24M → 40K
9:33/mi
8:10 split
25.2M
3:50:53
Rank: #20367 (+54)
40K → 25.2M
9:46/mi
3:22 split
Finish· 26.22 mi
3:59:35
Rank: #20275 (+92)
25.2M → Finish
8:32/mi
8:42 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:10
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:08:25
Pace9:48 /mi
📊Positive Split: 15.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2624:518:0024:51
8:00
-
10K
6.21 mi11:45:3951:048:1326:13
8:26
+0:26
15K
9.32 mi12:11:141:16:398:1325:35
8:14
-0:12
20K
12.43 mi12:39:521:45:178:2828:38
9:13
+0:59
Half
13.11 mi12:45:451:51:108:295:53
8:37
-0:36
25K
15.53 mi13:09:562:15:218:4324:11
9:58
+1:21
30K
18.64 mi13:41:372:47:028:5831:41
10:12
+0:14
20M
20.00 mi13:54:122:59:378:5912:35
9:16
-0:56
21M
21.00 mi14:03:593:09:249:019:47
9:47
+0:31
35K
21.75 mi14:10:573:16:229:026:58
9:19
-0:28
23M
23.00 mi14:24:413:30:069:0813:44
10:58
+1:39
24M
24.00 mi14:33:563:39:219:089:15
9:15
-1:43
40K
24.85 mi14:42:063:47:319:098:10
9:33
+0:18
25.2M
25.20 mi14:45:283:50:539:103:22
9:46
+0:13
Finish
26.22 mi14:54:103:59:359:098:42
8:32
-1:14

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

8:00 /mi

Average Pace

9:09 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:14

38% of race

Time at Steady Pace

1:05:36

27% of race

Time at Slower Pace

1:22:45

35% of race

Average Pace: 9:08 /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 mi11:19:2624:518:0024:51
8:00
#16601
10K
6.21 mi11:45:3951:048:1326:13
8:26
#18106
15K
9.32 mi12:11:141:16:398:1325:35
8:14
#17920
20K
12.43 mi12:39:521:45:178:2828:38
9:13
#19096
Half
13.11 mi12:45:451:51:108:295:53
8:37
#19130
25K
15.53 mi13:09:562:15:218:4324:11
9:58
#20140
30K
18.64 mi13:41:372:47:028:5831:41
10:12
#20687
20M
20.00 mi13:54:122:59:378:5912:35
9:16
#20471
21M
21.00 mi14:03:593:09:249:019:47
9:47
#20291
35K
21.75 mi14:10:573:16:229:026:58
9:19
#20257
23M
23.00 mi14:24:413:30:069:0813:44
10:58
#20528
24M
24.00 mi14:33:563:39:219:089:15
9:15
#20471
40K
24.85 mi14:42:063:47:319:098:10
9:33
#20421
25.2M
25.20 mi14:45:283:50:539:103:22
9:46
#20367
Finish
26.22 mi14:54:103:59:359:098:42
8:32
#20275
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi166015519551917630(Top 62%)6102(Top 50%)6102(Top 337%)
10K6.21 mi3.10 mi18106-15056396-8776396-87719449(Top 68%)7140(Top 58%)7140(Top 394%)
15K9.32 mi3.11 mi17920+1866279+1176279+11717630(Top 62%)6102(Top 50%)6102(Top 337%)
20K12.43 mi3.11 mi19096-11766959-6806959-68021948(Top 77%)8551(Top 70%)8551(Top 472%)
Half13.11 mi0.68 mi19130-346980-216980-2119991(Top 70%)7479(Top 61%)7479(Top 413%)
25K15.53 mi2.42 mi20140-10107572-5927572-59223200(Top 82%)9302(Top 76%)9302(Top 513%)
30K18.64 mi3.11 mi20687-5477919-3477919-34722179(Top 78%)8862(Top 72%)8862(Top 489%)
20M20.00 mi1.36 mi20471+2167820+997820+9918122(Top 64%)6791(Top 56%)6791(Top 375%)
21M21.00 mi1.00 mi20291+1807744+767744+7617439(Top 61%)6509(Top 53%)6509(Top 359%)
35K21.75 mi0.75 mi20257+347737+77737+719648(Top 69%)7796(Top 64%)7796(Top 430%)
23M23.00 mi1.25 mi20528-2717903-1667903-16623153(Top 82%)9688(Top 79%)9688(Top 534%)
24M24.00 mi1.00 mi20471+577885+187885+1818610(Top 66%)7351(Top 60%)7351(Top 405%)
40K24.85 mi0.85 mi20421+507879+67879+618931(Top 67%)7601(Top 62%)7601(Top 419%)
25.2M25.20 mi0.35 mi20367+547857+227857+2216009(Top 56%)6114(Top 50%)6114(Top 337%)
Finish26.22 mi1.02 mi20275+927822+357822+3516512(Top 58%)6322(Top 52%)6322(Top 349%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17630

Females

6102

F45-49

6102

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19449

Females

7140

F45-49

7140

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17630

Females

6102

F45-49

6102

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

21948

Females

8551

F45-49

8551

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19991

Females

7479

F45-49

7479

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23200

Females

9302

F45-49

9302

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

22179

Females

8862

F45-49

8862

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18122

Females

6791

F45-49

6791

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17439

Females

6509

F45-49

6509

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19648

Females

7796

F45-49

7796

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23153

Females

9688

F45-49

9688

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18610

Females

7351

F45-49

7351

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18931

Females

7601

F45-49

7601

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

16009

Females

6114

F45-49

6114

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16512

Females

6322

F45-49

6322

Passing Analysis

Category:
Athletes Passed
1351
Passed By
5025
Net Change
-3674
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16601
5K → 10K271532-1505#16601#18106
10K → 15K28599+186#18106#17920
15K → 20K311207-1176#17920#19096
20K → Half2256-34#19096#19130
Half → 25K261036-1010#19130#20140
25K → 30K98645-547#20140#20687
30K → 20M22913+216#20687#20471
20M → 21M19515+180#20471#20291
21M → 35K6430+34#20291#20257
35K → 23M38309-271#20257#20528
23M → 24M8225+57#20528#20471
24M → 40K8131+50#20471#20421
40K → 25.2M606+54#20421#20367
25.2M → Finish11321+92#20367#20275
TOTALS13515025-3674
📊

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