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BOSTON MARATHON 2025

Heather Henderlong

Bib: 22221•F

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:44
Rank: #22122
Start → 5K
27:44 | 8:56/mi
10K· 6.21 mi
54:54
Rank: #21642 (+480)
5K → 10K
27:10 | 8:45/mi
15K· 9.32 mi
1:22:29
Rank: #21538 (+104)
10K → 15K
27:35 | 8:53/mi
20K· 12.43 mi
1:50:48
Rank: #21539 (-1)
15K → 20K
28:19 | 9:07/mi
Half· 13.11 mi
1:56:51
Rank: #21508 (+31)
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:21:34
Rank: #22063 (-555)
Half → 25K
24:43 | 10:12/mi
30K· 18.64 mi
2:53:58
Rank: #22278 (-215)
25K → 30K
32:24 | 10:26/mi
20M
3:07:55
Rank: #22239 (+39)
30K → 20M
13:57 | 10:16/mi
21M
3:19:40
Rank: #22279 (-40)
20M → 21M
11:45 | 11:45/mi
35K· 21.75 mi
3:26:37
Rank: #22182 (+97)
21M → 35K
6:57 | 9:17/mi
23M
3:40:12
Rank: #22205 (-23)
35K → 23M
13:35 | 10:51/mi
24M
3:51:17
Rank: #22297 (-92)
23M → 24M
11:05 | 11:05/mi
40K· 24.85 mi
3:59:55
Rank: #22252 (+45)
24M → 40K
8:38 | 10:06/mi
25.2M
4:04:07
Rank: #22266 (-14)
40K → 25.2M
4:12 | 12:11/mi
Finish· 26.22 mi
4:13:21
Rank: #22154 (+112)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:51
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:16:30
Pace10:25 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3927:448:5627:44
8:56
-
10K
6.21 mi11:49:4954:548:5027:10
8:45
-0:11
15K
9.32 mi12:17:241:22:298:5127:35
8:53
+0:08
20K
12.43 mi12:45:431:50:488:5528:19
9:07
+0:14
Half
13.11 mi12:51:461:56:518:556:03
8:52
-0:15
25K
15.53 mi13:16:292:21:349:0724:43
10:12
+1:20
30K
18.64 mi13:48:532:53:589:2032:24
10:26
+0:14
20M
20.00 mi14:02:503:07:559:2413:57
10:16
-0:10
21M
21.00 mi14:14:353:19:409:3011:45
11:45
+1:29
35K
21.75 mi14:21:323:26:379:306:57
9:17
-2:28
23M
23.00 mi14:35:073:40:129:3413:35
10:51
+1:34
24M
24.00 mi14:46:123:51:179:3811:05
11:05
+0:14
40K
24.85 mi14:54:503:59:559:398:38
10:06
-0:59
25.2M
25.20 mi14:59:024:04:079:414:12
12:11
+2:05
Finish
26.22 mi15:08:164:13:219:409:14
9:04
-3:07

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

9:40 /mi

Slowest Pace

12:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:02

53% of race

Time at Steady Pace

1:19:42

31% of race

Time at Slower Pace

40:37

16% of race

Average Pace: 9:40 /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 mi11:22:3927:448:5627:44
8:56
#22122
10K
6.21 mi11:49:4954:548:5027:10
8:45
#21642
15K
9.32 mi12:17:241:22:298:5127:35
8:53
#21538
20K
12.43 mi12:45:431:50:488:5528:19
9:07
#21539
Half
13.11 mi12:51:461:56:518:556:03
8:52
#21508
25K
15.53 mi13:16:292:21:349:0724:43
10:12
#22063
30K
18.64 mi13:48:532:53:589:2032:24
10:26
#22278
20M
20.00 mi14:02:503:07:559:2413:57
10:16
#22239
21M
21.00 mi14:14:353:19:409:3011:45
11:45
#22279
35K
21.75 mi14:21:323:26:379:306:57
9:17
#22182
23M
23.00 mi14:35:073:40:129:3413:35
10:51
#22205
24M
24.00 mi14:46:123:51:179:3811:05
11:05
#22297
40K
24.85 mi14:54:503:59:559:398:38
10:06
#22252
25.2M
25.20 mi14:59:024:04:079:414:12
12:11
#22266
Finish
26.22 mi15:08:164:13:219:409:14
9:04
#22154
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi221228696869621467(Top 76%)8262(Top 68%)8262(Top 831%)
10K6.21 mi3.10 mi21642+4808411+2858411+28521137(Top 74%)8106(Top 66%)8106(Top 815%)
15K9.32 mi3.11 mi21538+1048329+828329+8221467(Top 76%)8262(Top 68%)8262(Top 831%)
20K12.43 mi3.11 mi21539-18337-88337-821526(Top 76%)8333(Top 68%)8333(Top 838%)
Half13.11 mi0.68 mi21508+318319+188319+1821293(Top 75%)8207(Top 67%)8207(Top 826%)
25K15.53 mi2.42 mi22063-5558639-3208639-32023714(Top 83%)9596(Top 78%)9596(Top 965%)
30K18.64 mi3.11 mi22278-2158783-1448783-14422773(Top 80%)9195(Top 75%)9195(Top 925%)
20M20.00 mi1.36 mi22239+398778+58778+521773(Top 77%)8777(Top 72%)8777(Top 883%)
21M21.00 mi1.00 mi22279-408821-438821-4323128(Top 81%)9555(Top 78%)9555(Top 961%)
35K21.75 mi0.75 mi22182+978781+408781+4019572(Top 69%)7764(Top 63%)7764(Top 781%)
23M23.00 mi1.25 mi22205-238831-508831-5022874(Top 81%)9535(Top 78%)9535(Top 959%)
24M24.00 mi1.00 mi22297-928905-748905-7424164(Top 85%)10201(Top 83%)10201(Top 1026%)
40K24.85 mi0.85 mi22252+458890+158890+1520789(Top 73%)8558(Top 70%)8558(Top 861%)
25.2M25.20 mi0.35 mi22266-148903-138903-1323583(Top 83%)9960(Top 81%)9960(Top 1002%)
Finish26.22 mi1.02 mi22154+1128867+368867+3619373(Top 68%)7805(Top 64%)7805(Top 785%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

21467

Females

8262

F55-59

8262

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21137

Females

8106

F55-59

8106

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

21467

Females

8262

F55-59

8262

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21526

Females

8333

F55-59

8333

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

21293

Females

8207

F55-59

8207

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

23714

Females

9596

F55-59

9596

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

22773

Females

9195

F55-59

9195

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

21773

Females

8777

F55-59

8777

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

23128

Females

9555

F55-59

9555

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19572

Females

7764

F55-59

7764

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

22874

Females

9535

F55-59

9535

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

24164

Females

10201

F55-59

10201

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20789

Females

8558

F55-59

8558

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23583

Females

9960

F55-59

9960

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19373

Females

7805

F55-59

7805

Passing Analysis

Category:
Athletes Passed
1809
Passed By
1841
Net Change
-32
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22122
5K → 10K57494+480#22122#21642
10K → 15K261157+104#21642#21538
15K → 20K198199-1#21538#21539
20K → Half4615+31#21539#21508
Half → 25K39594-555#21508#22063
25K → 30K125340-215#22063#22278
30K → 20M8647+39#22278#22239
20M → 21M68108-40#22239#22279
21M → 35K1047+97#22279#22182
35K → 23M7598-23#22182#22205
23M → 24M31123-92#22205#22297
24M → 40K7025+45#22297#22252
40K → 25.2M1226-14#22252#22266
25.2M → Finish1208+112#22266#22154
TOTALS18091841-32
📊

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