Boston Marathon logo
BOSTON MARATHON 2025

Margaret Darling

Bib: 29576•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
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
34:05
Rank: #27534
Start → 5K
34:05 | 10:58/mi
10K· 6.21 mi
1:09:07
Rank: #27446 (+88)
5K → 10K
35:02 | 11:17/mi
15K· 9.32 mi
1:45:21
Rank: #27447 (-1)
10K → 15K
36:14 | 11:40/mi
20K· 12.43 mi
2:26:18
Rank: #27647 (-200)
15K → 20K
40:57 | 13:11/mi
Half· 13.11 mi
2:34:21
Rank: #27628 (+19)
20K → Half
8:03 | 11:48/mi
25K· 15.53 mi
3:06:18
Rank: #27593 (+35)
Half → 25K
31:57 | 13:11/mi
30K· 18.64 mi
3:42:59
Rank: #27257 (+336)
25K → 30K
36:41 | 11:48/mi
20M
3:58:45
Rank: #27126 (+131)
30K → 20M
15:46 | 11:36/mi
21M
4:11:41
Rank: #27052 (+74)
20M → 21M
12:56 | 12:56/mi
35K· 21.75 mi
4:19:40
Rank: #26995 (+57)
21M → 35K
7:59 | 10:40/mi
23M
4:34:14
Rank: #26893 (+102)
35K → 23M
14:34 | 11:38/mi
24M
4:45:38
Rank: #26810 (+83)
23M → 24M
11:24 | 11:24/mi
40K· 24.85 mi
4:55:31
Rank: #26751 (+59)
24M → 40K
9:53 | 11:34/mi
25.2M
4:59:51
Rank: #26722 (+29)
40K → 25.2M
4:20 | 12:34/mi
Finish· 26.22 mi
5:11:43
Rank: #26722
25.2M → Finish
11:52 | 11:39/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:34:21
Pace11:46 /mi
2nd Half
Distance13.11 mi
Time2:37:22
Pace12:00 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1634:0510:5834:05
10:58
-
10K
6.21 mi12:28:181:09:0711:0735:02
11:17
+0:19
15K
9.32 mi13:04:321:45:2111:1836:14
11:40
+0:23
20K
12.43 mi13:45:292:26:1811:4640:57
13:11
+1:31
Half
13.11 mi13:53:322:34:2111:468:03
11:48
-1:23
25K
15.53 mi14:25:293:06:1812:0031:57
13:11
+1:23
30K
18.64 mi15:02:103:42:5911:5836:41
11:48
-1:23
20M
20.00 mi15:17:563:58:4511:5615:46
11:36
-0:12
21M
21.00 mi15:30:524:11:4111:5912:56
12:56
+1:20
35K
21.75 mi15:38:514:19:4011:567:59
10:40
-2:16
23M
23.00 mi15:53:254:34:1411:5514:34
11:38
+0:58
24M
24.00 mi16:04:494:45:3811:5411:24
11:24
-0:14
40K
24.85 mi16:14:424:55:3111:539:53
11:34
+0:10
25.2M
25.20 mi16:19:024:59:5111:544:20
12:34
+1:00
Finish
26.22 mi16:30:545:11:4311:5411:52
11:39
-0:55

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

10:40 /mi

Average Pace

11:54 /mi

Slowest Pace

13:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:04

13% of race

Time at Steady Pace

2:59:29

58% of race

Time at Slower Pace

1:30:10

29% of race

Average Pace: 11:53 /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 mi11:53:1634:0510:5834:05
10:58
#27534
10K
6.21 mi12:28:181:09:0711:0735:02
11:17
#27446
15K
9.32 mi13:04:321:45:2111:1836:14
11:40
#27447
20K
12.43 mi13:45:292:26:1811:4640:57
13:11
#27647
Half
13.11 mi13:53:322:34:2111:468:03
11:48
#27628
25K
15.53 mi14:25:293:06:1812:0031:57
13:11
#27593
30K
18.64 mi15:02:103:42:5911:5836:41
11:48
#27257
20M
20.00 mi15:17:563:58:4511:5615:46
11:36
#27126
21M
21.00 mi15:30:524:11:4111:5912:56
12:56
#27052
35K
21.75 mi15:38:514:19:4011:567:59
10:40
#26995
23M
23.00 mi15:53:254:34:1411:5514:34
11:38
#26893
24M
24.00 mi16:04:494:45:3811:5411:24
11:24
#26810
40K
24.85 mi16:14:424:55:3111:539:53
11:34
#26751
25.2M
25.20 mi16:19:024:59:5111:544:20
12:34
#26722
Finish
26.22 mi16:30:545:11:4311:5411:52
11:39
#26722
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi27534116681166827378(Top 96%)11608(Top 95%)11608(Top 1860%)
10K6.21 mi3.10 mi27446+8811613+5511613+5527355(Top 96%)11580(Top 95%)11580(Top 1856%)
15K9.32 mi3.11 mi27447-111625-1211625-1227378(Top 96%)11608(Top 95%)11608(Top 1860%)
20K12.43 mi3.11 mi27647-20011762-13711762-13727918(Top 98%)11943(Top 98%)11943(Top 1914%)
Half13.11 mi0.68 mi27628+1911751+1111751+1127287(Top 96%)11583(Top 95%)11583(Top 1856%)
25K15.53 mi2.42 mi27593+3511730+2111730+2127414(Top 97%)11662(Top 95%)11662(Top 1869%)
30K18.64 mi3.11 mi27257+33611555+17511555+17525327(Top 89%)10573(Top 86%)10573(Top 1694%)
20M20.00 mi1.36 mi27126+13111481+7411481+7424711(Top 87%)10326(Top 84%)10326(Top 1655%)
21M21.00 mi1.00 mi27052+7411445+3611445+3624959(Top 88%)10551(Top 86%)10551(Top 1691%)
35K21.75 mi0.75 mi26995+5711411+3411411+3423503(Top 83%)9812(Top 80%)9812(Top 1572%)
23M23.00 mi1.25 mi26893+10211357+5411357+5424465(Top 86%)10334(Top 85%)10334(Top 1656%)
24M24.00 mi1.00 mi26810+8311328+2911328+2924715(Top 87%)10501(Top 86%)10501(Top 1683%)
40K24.85 mi0.85 mi26751+5911304+2411304+2424226(Top 85%)10286(Top 84%)10286(Top 1648%)
25.2M25.20 mi0.35 mi26722+2911292+1211292+1224291(Top 86%)10319(Top 84%)10319(Top 1654%)
Finish26.22 mi1.02 mi2672211300-811300-826335(Top 93%)11311(Top 93%)11311(Top 1813%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21stories
+97ft-345ft

Overall

27378

Females

11608

F60-64

11608

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

27355

Females

11580

F60-64

11580

10K→15K

6.2 - 9.3 mi

Top 96%
×3stories
+67ft-78ft

Overall

27378

Females

11608

F60-64

11608

15K→20K

9.3 - 12.4 mi

Top 98%
×5stories
+106ft-86ft

Overall

27918

Females

11943

F60-64

11943

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

27287

Females

11583

F60-64

11583

Half→25K

13.1 - 15.5 mi

Top 97%
×4stories
+66ft-88ft

Overall

27414

Females

11662

F60-64

11662

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

25327

Females

10573

F60-64

10573

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

24711

Females

10326

F60-64

10326

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

24959

Females

10551

F60-64

10551

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

23503

Females

9812

F60-64

9812

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

24465

Females

10334

F60-64

10334

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

24715

Females

10501

F60-64

10501

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24226

Females

10286

F60-64

10286

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24291

Females

10319

F60-64

10319

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

26335

Females

11311

F60-64

11311

Passing Analysis

Category:
Athletes Passed
1270
Passed By
458
Net Change
+812
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27534
5K → 10K15466+88#27534#27446
10K → 15K8990-1#27446#27447
15K → 20K22222-200#27447#27647
20K → Half2910+19#27647#27628
Half → 25K7843+35#27628#27593
25K → 30K3393+336#27593#27257
30K → 20M1321+131#27257#27126
20M → 21M751+74#27126#27052
21M → 35K570+57#27052#26995
35K → 23M1031+102#26995#26893
23M → 24M874+83#26893#26810
24M → 40K601+59#26810#26751
40K → 25.2M312+29#26751#26722
25.2M → Finish14140#26722#26722
TOTALS1270458+812
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing