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BOSTON MARATHON 2025

Laura Heintz

Bib: 9042•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Female)
#0 / 12228
Top 5%
Masters (Masters Women)
#0 / 6759
Top 1%
Division (F45-49)
#0 / 1813
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:50
Rank: #5516
Start → 5K
20:50 | 6:42/mi
10K· 6.21 mi
41:38
Rank: #5376 (+140)
5K → 10K
20:48 | 6:42/mi
15K· 9.32 mi
1:02:33
Rank: #5364 (+12)
10K → 15K
20:55 | 6:44/mi
20K· 12.43 mi
1:23:48
Rank: #5419 (-55)
15K → 20K
21:15 | 6:50/mi
Half· 13.11 mi
1:28:27
Rank: #5462 (-43)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:45:25
Rank: #5594 (-132)
Half → 25K
16:58 | 7:00/mi
30K· 18.64 mi
2:07:54
Rank: #5684 (-90)
25K → 30K
22:29 | 7:14/mi
20M
2:18:00
Rank: #5742 (-58)
30K → 20M
10:06 | 7:26/mi
21M
2:25:55
Rank: #5743 (-1)
20M → 21M
7:55 | 7:55/mi
35K· 21.75 mi
2:31:08
Rank: #5700 (+43)
21M → 35K
5:13 | 6:58/mi
23M
2:40:31
Rank: #5672 (+28)
35K → 23M
9:23 | 7:30/mi
24M
2:47:52
Rank: #5664 (+8)
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
2:54:19
Rank: #5652 (+12)
24M → 40K
6:27 | 7:33/mi
25.2M
2:57:12
Rank: #5636 (+16)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:04:40
Rank: #5668 (-32)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:27
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:36:13
Pace7:20 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3720:506:4220:50
6:42
-
10K
6.21 mi11:08:2541:386:4220:48
6:42
0:00
15K
9.32 mi11:29:201:02:336:4320:55
6:44
+0:02
20K
12.43 mi11:50:351:23:486:4521:15
6:50
+0:06
Half
13.11 mi11:55:141:28:276:454:39
6:49
-0:01
25K
15.53 mi12:12:121:45:256:4716:58
7:00
+0:11
30K
18.64 mi12:34:412:07:546:5222:29
7:14
+0:14
20M
20.00 mi12:44:472:18:006:5410:06
7:26
+0:12
21M
21.00 mi12:52:422:25:556:577:55
7:55
+0:29
35K
21.75 mi12:57:552:31:086:575:13
6:58
-0:57
23M
23.00 mi13:07:182:40:316:599:23
7:30
+0:32
24M
24.00 mi13:14:392:47:527:007:21
7:21
-0:09
40K
24.85 mi13:21:062:54:197:016:27
7:33
+0:12
25.2M
25.20 mi13:23:592:57:127:022:53
8:22
+0:49
Finish
26.22 mi13:31:273:04:407:037:28
7:20
-1:02

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

6:42 /mi

Average Pace

7:03 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:38

60% of race

Time at Steady Pace

47:24

26% of race

Time at Slower Pace

26:38

14% of race

Average Pace: 7:03 /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 mi10:47:3720:506:4220:50
6:42
#5516
10K
6.21 mi11:08:2541:386:4220:48
6:42
#5376
15K
9.32 mi11:29:201:02:336:4320:55
6:44
#5364
20K
12.43 mi11:50:351:23:486:4521:15
6:50
#5419
Half
13.11 mi11:55:141:28:276:454:39
6:49
#5462
25K
15.53 mi12:12:121:45:256:4716:58
7:00
#5594
30K
18.64 mi12:34:412:07:546:5222:29
7:14
#5684
20M
20.00 mi12:44:472:18:006:5410:06
7:26
#5742
21M
21.00 mi12:52:422:25:556:577:55
7:55
#5743
35K
21.75 mi12:57:552:31:086:575:13
6:58
#5700
23M
23.00 mi13:07:182:40:316:599:23
7:30
#5672
24M
24.00 mi13:14:392:47:527:007:21
7:21
#5664
40K
24.85 mi13:21:062:54:197:016:27
7:33
#5652
25.2M
25.20 mi13:23:592:57:127:022:53
8:22
#5636
Finish
26.22 mi13:31:273:04:407:037:28
7:20
#5668
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi55163973975411(Top 19%)423(Top 3%)423(Top 23%)
10K6.21 mi3.10 mi5376+140384+13384+135324(Top 19%)386(Top 3%)386(Top 21%)
15K9.32 mi3.11 mi5364+12385-1385-15411(Top 19%)423(Top 3%)423(Top 23%)
20K12.43 mi3.11 mi5419-55403-18403-185713(Top 20%)493(Top 4%)493(Top 27%)
Half13.11 mi0.68 mi5462-43412-9412-96351(Top 22%)613(Top 5%)613(Top 34%)
25K15.53 mi2.42 mi5594-132442-30442-306334(Top 22%)672(Top 5%)672(Top 37%)
30K18.64 mi3.11 mi5684-90487-45487-456110(Top 22%)705(Top 6%)705(Top 39%)
20M20.00 mi1.36 mi5742-58506-19506-196589(Top 23%)997(Top 8%)997(Top 55%)
21M21.00 mi1.00 mi5743-1515-9515-96894(Top 24%)1252(Top 10%)1252(Top 69%)
35K21.75 mi0.75 mi5700+43512+3512+35212(Top 18%)669(Top 5%)669(Top 37%)
23M23.00 mi1.25 mi5672+28534-22534-226600(Top 23%)1221(Top 10%)1221(Top 67%)
24M24.00 mi1.00 mi5664+8546-12546-126732(Top 24%)1341(Top 11%)1341(Top 74%)
40K24.85 mi0.85 mi5652+12556-10556-107062(Top 25%)1564(Top 13%)1564(Top 86%)
25.2M25.20 mi0.35 mi5636+16564-8564-87980(Top 28%)2038(Top 17%)2038(Top 112%)
Finish26.22 mi1.02 mi5668-32583-19583-197967(Top 28%)2042(Top 17%)2042(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5411

Females

423

F45-49

423

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5324

Females

386

F45-49

386

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5411

Females

423

F45-49

423

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5713

Females

493

F45-49

493

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6351

Females

613

F45-49

613

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6334

Females

672

F45-49

672

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6110

Females

705

F45-49

705

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6589

Females

997

F45-49

997

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6894

Females

1252

F45-49

1252

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5212

Females

669

F45-49

669

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6600

Females

1221

F45-49

1221

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6732

Females

1341

F45-49

1341

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7062

Females

1564

F45-49

1564

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7980

Females

2038

F45-49

2038

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7967

Females

2042

F45-49

2042

Passing Analysis

Category:
Athletes Passed
1205
Passed By
1357
Net Change
-152
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5516
5K → 10K263123+140#5516#5376
10K → 15K129117+12#5376#5364
15K → 20K103158-55#5364#5419
20K → Half2063-43#5419#5462
Half → 25K79211-132#5462#5594
25K → 30K153243-90#5594#5684
30K → 20M49107-58#5684#5742
20M → 21M6465-1#5742#5743
21M → 35K6017+43#5743#5700
35K → 23M9365+28#5700#5672
23M → 24M5951+8#5672#5664
24M → 40K5846+12#5664#5652
40K → 25.2M3620+16#5652#5636
25.2M → Finish3971-32#5636#5668
TOTALS12051357-152
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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