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BOSTON MARATHON 2025

Molly Zaker

Bib: 28905•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:32
Rank: #26688
Start → 5K
32:32 | 10:28/mi
10K· 6.21 mi
1:03:05
Rank: #25774 (+914)
5K → 10K
30:33 | 9:50/mi
15K· 9.32 mi
1:34:28
Rank: #25594 (+180)
10K → 15K
31:23 | 10:06/mi
20K· 12.43 mi
2:06:56
Rank: #25461 (+133)
15K → 20K
32:28 | 10:27/mi
Half· 13.11 mi
2:13:47
Rank: #25420 (+41)
20K → Half
6:51 | 10:02/mi
25K· 15.53 mi
2:39:50
Rank: #25291 (+129)
Half → 25K
26:03 | 10:45/mi
30K· 18.64 mi
3:16:28
Rank: #25313 (-22)
25K → 30K
36:38 | 11:47/mi
20M
3:31:58
Rank: #25240 (+73)
30K → 20M
15:30 | 11:24/mi
21M
3:44:25
Rank: #25200 (+40)
20M → 21M
12:27 | 12:27/mi
35K· 21.75 mi
3:52:10
Rank: #25142 (+58)
21M → 35K
7:45 | 10:22/mi
23M
4:06:54
Rank: #25123 (+19)
35K → 23M
14:44 | 11:46/mi
24M
4:18:03
Rank: #25089 (+34)
23M → 24M
11:09 | 11:09/mi
40K· 24.85 mi
4:28:07
Rank: #25093 (-4)
24M → 40K
10:04 | 11:46/mi
25.2M
4:32:44
Rank: #25099 (-6)
40K → 25.2M
4:37 | 13:23/mi
Finish· 26.22 mi
4:43:58
Rank: #25112 (-13)
25.2M → Finish
11:14 | 11:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:47
Pace10:12 /mi
2nd Half
Distance13.11 mi
Time2:30:11
Pace11:27 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2332:3210:2832:32
10:28
-
10K
6.21 mi12:21:561:03:0510:0930:33
9:50
-0:38
15K
9.32 mi12:53:191:34:2810:0831:23
10:06
+0:16
20K
12.43 mi13:25:472:06:5610:1332:28
10:27
+0:21
Half
13.11 mi13:32:382:13:4710:126:51
10:02
-0:25
25K
15.53 mi13:58:412:39:5010:1726:03
10:45
+0:43
30K
18.64 mi14:35:193:16:2810:3236:38
11:47
+1:02
20M
20.00 mi14:50:493:31:5810:3615:30
11:24
-0:23
21M
21.00 mi15:03:163:44:2510:4112:27
12:27
+1:03
35K
21.75 mi15:11:013:52:1010:417:45
10:22
-2:05
23M
23.00 mi15:25:454:06:5410:4414:44
11:46
+1:24
24M
24.00 mi15:36:544:18:0310:4511:09
11:09
-0:37
40K
24.85 mi15:46:584:28:0710:4710:04
11:46
+0:37
25.2M
25.20 mi15:51:354:32:4410:494:37
13:23
+1:37
Finish
26.22 mi16:02:494:43:5810:5011:14
11:01
-2:22

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

9:50 /mi

Average Pace

10:50 /mi

Slowest Pace

13:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:32

50% of race

Time at Steady Pace

1:03:56

23% of race

Time at Slower Pace

1:18:30

28% of race

Average Pace: 10:50 /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 mi11:51:2332:3210:2832:32
10:28
#26688
10K
6.21 mi12:21:561:03:0510:0930:33
9:50
#25774
15K
9.32 mi12:53:191:34:2810:0831:23
10:06
#25594
20K
12.43 mi13:25:472:06:5610:1332:28
10:27
#25461
Half
13.11 mi13:32:382:13:4710:126:51
10:02
#25420
25K
15.53 mi13:58:412:39:5010:1726:03
10:45
#25291
30K
18.64 mi14:35:193:16:2810:3236:38
11:47
#25313
20M
20.00 mi14:50:493:31:5810:3615:30
11:24
#25240
21M
21.00 mi15:03:163:44:2510:4112:27
12:27
#25200
35K
21.75 mi15:11:013:52:1010:417:45
10:22
#25142
23M
23.00 mi15:25:454:06:5410:4414:44
11:46
#25123
24M
24.00 mi15:36:544:18:0310:4511:09
11:09
#25089
40K
24.85 mi15:46:584:28:0710:4710:04
11:46
#25093
25.2M
25.20 mi15:51:354:32:4410:494:37
13:23
#25099
Finish
26.22 mi16:02:494:43:5810:5011:14
11:01
#25112
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26688111491114925201(Top 89%)10339(Top 85%)10339(Top 189%)
10K6.21 mi3.10 mi25774+91410647+50210647+50224935(Top 88%)10201(Top 83%)10201(Top 187%)
15K9.32 mi3.11 mi25594+18010553+9410553+9425201(Top 89%)10339(Top 85%)10339(Top 189%)
20K12.43 mi3.11 mi25461+13310490+6310490+6325101(Top 88%)10316(Top 84%)10316(Top 189%)
Half13.11 mi0.68 mi25420+4110466+2410466+2424878(Top 88%)10211(Top 84%)10211(Top 187%)
25K15.53 mi2.42 mi25291+12910416+5010416+5024785(Top 87%)10175(Top 83%)10175(Top 186%)
30K18.64 mi3.11 mi25313-2210455-3910455-3925296(Top 89%)10555(Top 86%)10555(Top 193%)
20M20.00 mi1.36 mi25240+7310433+2210433+2224371(Top 86%)10154(Top 83%)10154(Top 186%)
21M21.00 mi1.00 mi25200+4010423+1010423+1024322(Top 86%)10197(Top 83%)10197(Top 186%)
35K21.75 mi0.75 mi25142+5810397+2610397+2622819(Top 80%)9455(Top 77%)9455(Top 173%)
23M23.00 mi1.25 mi25123+1910398-110398-124694(Top 87%)10445(Top 85%)10445(Top 191%)
24M24.00 mi1.00 mi25089+3410389+910389+924274(Top 85%)10259(Top 84%)10259(Top 188%)
40K24.85 mi0.85 mi25093-410396-710396-724575(Top 87%)10464(Top 86%)10464(Top 191%)
25.2M25.20 mi0.35 mi25099-610403-710403-725495(Top 90%)10942(Top 89%)10942(Top 200%)
Finish26.22 mi1.02 mi25112-1310420-1710420-1725393(Top 89%)10849(Top 89%)10849(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

25201

Females

10339

F18-39

10339

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

24935

Females

10201

F18-39

10201

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

25201

Females

10339

F18-39

10339

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

25101

Females

10316

F18-39

10316

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

24878

Females

10211

F18-39

10211

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

24785

Females

10175

F18-39

10175

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

25296

Females

10555

F18-39

10555

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

24371

Females

10154

F18-39

10154

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

24322

Females

10197

F18-39

10197

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

22819

Females

9455

F18-39

9455

35K→23M

21.8 - 23.0 mi

Top 87%
×5stories
+23ft-63ft

Overall

24694

Females

10445

F18-39

10445

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

24274

Females

10259

F18-39

10259

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24575

Females

10464

F18-39

10464

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25495

Females

10942

F18-39

10942

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2stories
+22ft-21ft

Overall

25393

Females

10849

F18-39

10849

Passing Analysis

Category:
Athletes Passed
2027
Passed By
451
Net Change
+1576
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26688
5K → 10K9151+914#26688#25774
10K → 15K23050+180#25774#25594
15K → 20K18653+133#25594#25461
20K → Half454+41#25461#25420
Half → 25K16334+129#25420#25291
25K → 30K112134-22#25291#25313
30K → 20M9724+73#25313#25240
20M → 21M6424+40#25240#25200
21M → 35K591+58#25200#25142
35K → 23M4627+19#25142#25123
23M → 24M4915+34#25123#25089
24M → 40K2933-4#25089#25093
40K → 25.2M814-6#25093#25099
25.2M → Finish2437-13#25099#25112
TOTALS2027451+1576
📊

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