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BOSTON MARATHON 2025

Amy Apfelbaum

Bib: 27210•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 (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:12
Rank: #21284
Start → 5K
27:12 | 8:45/mi
10K· 6.21 mi
54:32
Rank: #21329 (-45)
5K → 10K
27:20 | 8:48/mi
15K· 9.32 mi
1:23:06
Rank: #21891 (-562)
10K → 15K
28:34 | 9:12/mi
20K· 12.43 mi
1:51:53
Rank: #21953 (-62)
15K → 20K
28:47 | 9:16/mi
Half· 13.11 mi
1:58:08
Rank: #21980 (-27)
20K → Half
6:15 | 9:10/mi
25K· 15.53 mi
2:21:23
Rank: #22005 (-25)
Half → 25K
23:15 | 9:35/mi
30K· 18.64 mi
2:52:59
Rank: #22092 (-87)
25K → 30K
31:36 | 10:10/mi
20M
3:06:53
Rank: #22053 (+39)
30K → 20M
13:54 | 10:14/mi
21M
3:18:22
Rank: #22065 (-12)
20M → 21M
11:29 | 11:29/mi
35K· 21.75 mi
3:26:03
Rank: #22085 (-20)
21M → 35K
7:41 | 10:16/mi
23M
3:39:20
Rank: #22086 (-1)
35K → 23M
13:17 | 10:37/mi
24M
3:49:35
Rank: #22082 (+4)
23M → 24M
10:15 | 10:15/mi
40K· 24.85 mi
3:58:31
Rank: #22061 (+21)
24M → 40K
8:56 | 10:27/mi
25.2M
4:02:24
Rank: #22042 (+19)
40K → 25.2M
3:53 | 11:16/mi
Finish· 26.22 mi
4:12:01
Rank: #21993 (+49)
25.2M → Finish
9:37 | 9:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:08
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:13:53
Pace10:13 /mi
📊Positive Split: 13.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0827:128:4527:12
8:45
-
10K
6.21 mi12:12:2854:328:4727:20
8:48
+0:03
15K
9.32 mi12:41:021:23:068:5528:34
9:12
+0:24
20K
12.43 mi13:09:491:51:539:0028:47
9:16
+0:04
Half
13.11 mi13:16:041:58:089:016:15
9:10
-0:06
25K
15.53 mi13:39:192:21:239:0623:15
9:35
+0:25
30K
18.64 mi14:10:552:52:599:1731:36
10:10
+0:35
20M
20.00 mi14:24:493:06:539:2113:54
10:14
+0:04
21M
21.00 mi14:36:183:18:229:2711:29
11:29
+1:15
35K
21.75 mi14:43:593:26:039:287:41
10:16
-1:13
23M
23.00 mi14:57:163:39:209:3213:17
10:37
+0:21
24M
24.00 mi15:07:313:49:359:3410:15
10:15
-0:22
40K
24.85 mi15:16:273:58:319:368:56
10:27
+0:12
25.2M
25.20 mi15:20:204:02:249:373:53
11:16
+0:49
Finish
26.22 mi15:29:574:12:019:379:37
9:26
-1:50

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

8:45 /mi

Average Pace

9:37 /mi

Slowest Pace

11:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:00

60% of race

Time at Steady Pace

1:12:22

29% of race

Time at Slower Pace

28:39

11% of race

Average Pace: 9:37 /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 mi11:45:0827:128:4527:12
8:45
#21284
10K
6.21 mi12:12:2854:328:4727:20
8:48
#21329
15K
9.32 mi12:41:021:23:068:5528:34
9:12
#21891
20K
12.43 mi13:09:491:51:539:0028:47
9:16
#21953
Half
13.11 mi13:16:041:58:089:016:15
9:10
#21980
25K
15.53 mi13:39:192:21:239:0623:15
9:35
#22005
30K
18.64 mi14:10:552:52:599:1731:36
10:10
#22092
20M
20.00 mi14:24:493:06:539:2113:54
10:14
#22053
21M
21.00 mi14:36:183:18:229:2711:29
11:29
#22065
35K
21.75 mi14:43:593:26:039:287:41
10:16
#22085
23M
23.00 mi14:57:163:39:209:3213:17
10:37
#22086
24M
24.00 mi15:07:313:49:359:3410:15
10:15
#22082
40K
24.85 mi15:16:273:58:319:368:56
10:27
#22061
25.2M
25.20 mi15:20:204:02:249:373:53
11:16
#22042
Finish
26.22 mi15:29:574:12:019:379:37
9:26
#21993
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi212848237823722854(Top 80%)9020(Top 74%)9020(Top 498%)
10K6.21 mi3.10 mi21329-458235+28235+221401(Top 75%)8254(Top 68%)8254(Top 455%)
15K9.32 mi3.11 mi21891-5628539-3048539-30422854(Top 80%)9020(Top 74%)9020(Top 498%)
20K12.43 mi3.11 mi21953-628578-398578-3922169(Top 78%)8679(Top 71%)8679(Top 479%)
Half13.11 mi0.68 mi21980-278585-78585-722478(Top 79%)8869(Top 73%)8869(Top 489%)
25K15.53 mi2.42 mi22005-258609-248609-2422159(Top 78%)8738(Top 71%)8738(Top 482%)
30K18.64 mi3.11 mi22092-878672-638672-6322116(Top 78%)8830(Top 72%)8830(Top 487%)
20M20.00 mi1.36 mi22053+398671+18671+121660(Top 76%)8715(Top 71%)8715(Top 481%)
21M21.00 mi1.00 mi22065-128702-318702-3122592(Top 80%)9293(Top 76%)9293(Top 513%)
35K21.75 mi0.75 mi22085-208723-218723-2122621(Top 80%)9344(Top 76%)9344(Top 515%)
23M23.00 mi1.25 mi22086-18768-458768-4522306(Top 79%)9229(Top 75%)9229(Top 509%)
24M24.00 mi1.00 mi22082+48782-148782-1422095(Top 78%)9183(Top 75%)9183(Top 507%)
40K24.85 mi0.85 mi22061+218791-98791-921788(Top 77%)9085(Top 74%)9085(Top 501%)
25.2M25.20 mi0.35 mi22042+198786+58786+521452(Top 76%)8885(Top 73%)8885(Top 490%)
Finish26.22 mi1.02 mi21993+498776+108776+1020977(Top 74%)8648(Top 71%)8648(Top 477%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

22854

Females

9020

F45-49

9020

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21401

Females

8254

F45-49

8254

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

22854

Females

9020

F45-49

9020

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

22169

Females

8679

F45-49

8679

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22478

Females

8869

F45-49

8869

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22159

Females

8738

F45-49

8738

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22116

Females

8830

F45-49

8830

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

21660

Females

8715

F45-49

8715

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22592

Females

9293

F45-49

9293

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

22621

Females

9344

F45-49

9344

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

22306

Females

9229

F45-49

9229

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22095

Females

9183

F45-49

9183

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21788

Females

9085

F45-49

9085

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21452

Females

8885

F45-49

8885

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

20977

Females

8648

F45-49

8648

Passing Analysis

Category:
Athletes Passed
1358
Passed By
2067
Net Change
-709
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21284
5K → 10K257302-45#21284#21329
10K → 15K77639-562#21329#21891
15K → 20K173235-62#21891#21953
20K → Half2855-27#21953#21980
Half → 25K138163-25#21980#22005
25K → 30K158245-87#22005#22092
30K → 20M10566+39#22092#22053
20M → 21M8395-12#22053#22065
21M → 35K3656-20#22065#22085
35K → 23M8182-1#22085#22086
23M → 24M4844+4#22086#22082
24M → 40K6039+21#22082#22061
40K → 25.2M3819+19#22061#22042
25.2M → Finish7627+49#22042#21993
TOTALS13582067-709
📊

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