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BOSTON MARATHON 2025

David Nejdl

Bib: 5898•M

CT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 30%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:41
Rank: #5089
Start → 5K
20:41 | 6:39/mi
10K· 6.21 mi
41:48
Rank: #5643 (-554)
5K → 10K
21:07 | 6:48/mi
15K· 9.32 mi
1:02:15
Rank: #5054 (+589)
10K → 15K
20:27 | 6:35/mi
20K· 12.43 mi
1:23:14
Rank: #4972 (+82)
15K → 20K
20:59 | 6:45/mi
Half· 13.11 mi
1:27:48
Rank: #4977 (-5)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:45:28
Rank: #5623 (-646)
Half → 25K
17:40 | 7:17/mi
30K· 18.64 mi
2:07:36
Rank: #5561 (+62)
25K → 30K
22:08 | 7:07/mi
20M
2:17:19
Rank: #5503 (+58)
30K → 20M
9:43 | 7:09/mi
21M
2:25:01
Rank: #5482 (+21)
20M → 21M
7:42 | 7:42/mi
35K· 21.75 mi
2:30:23
Rank: #5490 (-8)
21M → 35K
5:22 | 7:10/mi
23M
2:39:45
Rank: #5474 (+16)
35K → 23M
9:22 | 7:29/mi
24M
2:47:06
Rank: #5474
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
2:53:31
Rank: #5467 (+7)
24M → 40K
6:25 | 7:30/mi
25.2M
2:56:19
Rank: #5441 (+26)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:03:38
Rank: #5440 (+1)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:48
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:35:50
Pace7:19 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0020:416:3920:41
6:39
-
10K
6.21 mi10:46:0741:486:4421:07
6:48
+0:09
15K
9.32 mi11:06:341:02:156:4120:27
6:35
-0:13
20K
12.43 mi11:27:331:23:146:4220:59
6:45
+0:10
Half
13.11 mi11:32:071:27:486:424:34
6:42
-0:03
25K
15.53 mi11:49:471:45:286:4717:40
7:17
+0:35
30K
18.64 mi12:11:552:07:366:5122:08
7:07
-0:10
20M
20.00 mi12:21:382:17:196:529:43
7:09
+0:02
21M
21.00 mi12:29:202:25:016:547:42
7:42
+0:33
35K
21.75 mi12:34:422:30:236:555:22
7:10
-0:32
23M
23.00 mi12:44:042:39:456:579:22
7:29
+0:19
24M
24.00 mi12:51:252:47:066:587:21
7:21
-0:08
40K
24.85 mi12:57:502:53:316:596:25
7:30
+0:09
25.2M
25.20 mi13:00:382:56:197:002:48
8:07
+0:37
Finish
26.22 mi13:07:573:03:387:017:19
7:11
-0:56

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

6:35 /mi

Average Pace

7:01 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:48

48% of race

Time at Steady Pace

1:09:33

38% of race

Time at Slower Pace

26:17

14% of race

Average Pace: 7:00 /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 mi10:25:0020:416:3920:41
6:39
#5089
10K
6.21 mi10:46:0741:486:4421:07
6:48
#5643
15K
9.32 mi11:06:341:02:156:4120:27
6:35
#5054
20K
12.43 mi11:27:331:23:146:4220:59
6:45
#4972
Half
13.11 mi11:32:071:27:486:424:34
6:42
#4977
25K
15.53 mi11:49:471:45:286:4717:40
7:17
#5623
30K
18.64 mi12:11:552:07:366:5122:08
7:07
#5561
20M
20.00 mi12:21:382:17:196:529:43
7:09
#5503
21M
21.00 mi12:29:202:25:016:547:42
7:42
#5482
35K
21.75 mi12:34:422:30:236:555:22
7:10
#5490
23M
23.00 mi12:44:042:39:456:579:22
7:29
#5474
24M
24.00 mi12:51:252:47:066:587:21
7:21
#5474
40K
24.85 mi12:57:502:53:316:596:25
7:30
#5467
25.2M
25.20 mi13:00:382:56:197:002:48
8:07
#5441
Finish
26.22 mi13:07:573:03:387:017:19
7:11
#5440
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5089475147514098(Top 14%)3857(Top 24%)3857(Top 68%)
10K6.21 mi3.10 mi5643-5545215-4645215-4646356(Top 22%)5765(Top 36%)5765(Top 102%)
15K9.32 mi3.11 mi5054+5894707+5084707+5084098(Top 14%)3857(Top 24%)3857(Top 68%)
20K12.43 mi3.11 mi4972+824628+794628+794882(Top 17%)4519(Top 28%)4519(Top 80%)
Half13.11 mi0.68 mi4977-54631-34631-35252(Top 18%)4847(Top 30%)4847(Top 86%)
25K15.53 mi2.42 mi5623-6465163-5325163-5328246(Top 29%)6907(Top 43%)6907(Top 122%)
30K18.64 mi3.11 mi5561+625088+755088+755454(Top 19%)4901(Top 30%)4901(Top 87%)
20M20.00 mi1.36 mi5503+585032+565032+564940(Top 17%)4443(Top 28%)4443(Top 79%)
21M21.00 mi1.00 mi5482+215007+255007+255635(Top 20%)4828(Top 30%)4828(Top 86%)
35K21.75 mi0.75 mi5490-85002+55002+56429(Top 23%)5343(Top 33%)5343(Top 95%)
23M23.00 mi1.25 mi5474+164975+274975+276516(Top 23%)5301(Top 33%)5301(Top 94%)
24M24.00 mi1.00 mi54744962+134962+136701(Top 24%)5348(Top 33%)5348(Top 95%)
40K24.85 mi0.85 mi5467+74942+204942+206817(Top 24%)5322(Top 33%)5322(Top 94%)
25.2M25.20 mi0.35 mi5441+264914+284914+286559(Top 23%)5088(Top 32%)5088(Top 90%)
Finish26.22 mi1.02 mi5440+14898+164898+166909(Top 24%)5275(Top 33%)5275(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

4098

Males

3857

M18-39

3857

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6356

Males

5765

M18-39

5765

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

4098

Males

3857

M18-39

3857

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4882

Males

4519

M18-39

4519

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5252

Males

4847

M18-39

4847

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

8246

Males

6907

M18-39

6907

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5454

Males

4901

M18-39

4901

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4940

Males

4443

M18-39

4443

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5635

Males

4828

M18-39

4828

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6429

Males

5343

M18-39

5343

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6516

Males

5301

M18-39

5301

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6701

Males

5348

M18-39

5348

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6817

Males

5322

M18-39

5322

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6559

Males

5088

M18-39

5088

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6909

Males

5275

M18-39

5275

Passing Analysis

Category:
Athletes Passed
1544
Passed By
1895
Net Change
-351
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5089
5K → 10K39593-554#5089#5643
10K → 15K5934+589#5643#5054
15K → 20K16684+82#5054#4972
20K → Half1722-5#4972#4977
Half → 25K20666-646#4977#5623
25K → 30K209147+62#5623#5561
30K → 20M9840+58#5561#5503
20M → 21M7554+21#5503#5482
21M → 35K4654-8#5482#5490
35K → 23M9074+16#5490#5474
23M → 24M51510#5474#5474
24M → 40K5144+7#5474#5467
40K → 25.2M3913+26#5467#5441
25.2M → Finish5049+1#5441#5440
TOTALS15441895-351
📊

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