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BOSTON MARATHON 2025

Amy Jacobson

Bib: 23983•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:23
Rank: #17921
Start → 5K
25:23 | 8:10/mi
10K· 6.21 mi
51:30
Rank: #18541 (-620)
5K → 10K
26:07 | 8:24/mi
15K· 9.32 mi
1:18:16
Rank: #19018 (-477)
10K → 15K
26:46 | 8:37/mi
20K· 12.43 mi
1:46:25
Rank: #19674 (-656)
15K → 20K
28:09 | 9:04/mi
Half· 13.11 mi
1:52:22
Rank: #19719 (-45)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:15:38
Rank: #20262 (-543)
Half → 25K
23:16 | 9:36/mi
30K· 18.64 mi
2:46:49
Rank: #20623 (-361)
25K → 30K
31:11 | 10:02/mi
20M
3:02:14
Rank: #21086 (-463)
30K → 20M
15:25 | 11:21/mi
21M
3:15:52
Rank: #21644 (-558)
20M → 21M
13:38 | 13:38/mi
35K· 21.75 mi
3:23:42
Rank: #21710 (-66)
21M → 35K
7:50 | 10:28/mi
23M
3:38:35
Rank: #21966 (-256)
35K → 23M
14:53 | 11:53/mi
24M
3:50:05
Rank: #22145 (-179)
23M → 24M
11:30 | 11:30/mi
40K· 24.85 mi
4:01:32
Rank: #22426 (-281)
24M → 40K
11:27 | 13:24/mi
25.2M
4:06:37
Rank: #22571 (-145)
40K → 25.2M
5:05 | 14:44/mi
Finish· 26.22 mi
4:18:04
Rank: #22713 (-142)
25.2M → Finish
11:27 | 11:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:22
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time2:25:42
Pace11:07 /mi
📊Positive Split: 29.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2625:238:1025:23
8:10
-
10K
6.21 mi11:49:3351:308:1726:07
8:24
+0:14
15K
9.32 mi12:16:191:18:168:2426:46
8:37
+0:13
20K
12.43 mi12:44:281:46:258:3428:09
9:04
+0:27
Half
13.11 mi12:50:251:52:228:345:57
8:43
-0:21
25K
15.53 mi13:13:412:15:388:4423:16
9:36
+0:53
30K
18.64 mi13:44:522:46:498:5731:11
10:02
+0:26
20M
20.00 mi14:00:173:02:149:0715:25
11:21
+1:19
21M
21.00 mi14:13:553:15:529:2013:38
13:38
+2:17
35K
21.75 mi14:21:453:23:429:227:50
10:28
-3:10
23M
23.00 mi14:36:383:38:359:3014:53
11:53
+1:25
24M
24.00 mi14:48:083:50:059:3511:30
11:30
-0:23
40K
24.85 mi14:59:354:01:329:4311:27
13:24
+1:54
25.2M
25.20 mi15:04:404:06:379:475:05
14:44
+1:20
Finish
26.22 mi15:16:074:18:049:5111:27
11:14
-3:30

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

8:10 /mi

Average Pace

9:51 /mi

Slowest Pace

14:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:22

44% of race

Time at Steady Pace

1:29:09

35% of race

Time at Slower Pace

56:33

22% of race

Average Pace: 9:51 /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 mi11:23:2625:238:1025:23
8:10
#17921
10K
6.21 mi11:49:3351:308:1726:07
8:24
#18541
15K
9.32 mi12:16:191:18:168:2426:46
8:37
#19018
20K
12.43 mi12:44:281:46:258:3428:09
9:04
#19674
Half
13.11 mi12:50:251:52:228:345:57
8:43
#19719
25K
15.53 mi13:13:412:15:388:4423:16
9:36
#20262
30K
18.64 mi13:44:522:46:498:5731:11
10:02
#20623
20M
20.00 mi14:00:173:02:149:0715:25
11:21
#21086
21M
21.00 mi14:13:553:15:529:2013:38
13:38
#21644
35K
21.75 mi14:21:453:23:429:227:50
10:28
#21710
23M
23.00 mi14:36:383:38:359:3014:53
11:53
#21966
24M
24.00 mi14:48:083:50:059:3511:30
11:30
#22145
40K
24.85 mi14:59:354:01:329:4311:27
13:24
#22426
25.2M
25.20 mi15:04:404:06:379:475:05
14:44
#22571
Finish
26.22 mi15:16:074:18:049:5111:27
11:14
#22713
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi179216297629720025(Top 71%)7458(Top 61%)7458(Top 1195%)
10K6.21 mi3.10 mi18541-6206640-3436640-34319246(Top 68%)7029(Top 57%)7029(Top 1126%)
15K9.32 mi3.11 mi19018-4776924-2846924-28420025(Top 71%)7458(Top 61%)7458(Top 1195%)
20K12.43 mi3.11 mi19674-6567287-3637287-36321281(Top 75%)8194(Top 67%)8194(Top 1313%)
Half13.11 mi0.68 mi19719-457318-317318-3120560(Top 72%)7808(Top 64%)7808(Top 1251%)
25K15.53 mi2.42 mi20262-5437640-3227640-32222181(Top 78%)8754(Top 72%)8754(Top 1403%)
30K18.64 mi3.11 mi20623-3617885-2457885-24521707(Top 76%)8619(Top 70%)8619(Top 1381%)
20M20.00 mi1.36 mi21086-4638156-2718156-27124273(Top 85%)10095(Top 83%)10095(Top 1618%)
21M21.00 mi1.00 mi21644-5588470-3148470-31425812(Top 91%)10951(Top 90%)10951(Top 1755%)
35K21.75 mi0.75 mi21710-668514-448514-4423111(Top 81%)9607(Top 79%)9607(Top 1540%)
23M23.00 mi1.25 mi21966-2568696-1828696-18224948(Top 88%)10573(Top 86%)10573(Top 1694%)
24M24.00 mi1.00 mi22145-1798818-1228818-12224907(Top 88%)10582(Top 87%)10582(Top 1696%)
40K24.85 mi0.85 mi22426-2818993-1758993-17526679(Top 94%)11486(Top 94%)11486(Top 1841%)
25.2M25.20 mi0.35 mi22571-1459079-869079-8626952(Top 95%)11637(Top 95%)11637(Top 1865%)
Finish26.22 mi1.02 mi22713-1429172-939172-9325779(Top 91%)11030(Top 90%)11030(Top 1768%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20025

Females

7458

F60-64

7458

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

19246

Females

7029

F60-64

7029

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20025

Females

7458

F60-64

7458

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

21281

Females

8194

F60-64

8194

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

20560

Females

7808

F60-64

7808

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22181

Females

8754

F60-64

8754

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21707

Females

8619

F60-64

8619

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

24273

Females

10095

F60-64

10095

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

25812

Females

10951

F60-64

10951

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

23111

Females

9607

F60-64

9607

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

24948

Females

10573

F60-64

10573

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

24907

Females

10582

F60-64

10582

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

26679

Females

11486

F60-64

11486

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

26952

Females

11637

F60-64

11637

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

25779

Females

11030

F60-64

11030

Passing Analysis

Category:
Athletes Passed
553
Passed By
5345
Net Change
-4792
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17921
5K → 10K90710-620#17921#18541
10K → 15K76553-477#18541#19018
15K → 20K59715-656#19018#19674
20K → Half1863-45#19674#19719
Half → 25K45588-543#19719#20262
25K → 30K133494-361#20262#20623
30K → 20M26489-463#20623#21086
20M → 21M12570-558#21086#21644
21M → 35K2591-66#21644#21710
35K → 23M36292-256#21710#21966
23M → 24M13192-179#21966#22145
24M → 40K9290-281#22145#22426
40K → 25.2M0145-145#22426#22571
25.2M → Finish11153-142#22571#22713
TOTALS5535345-4792
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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