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BOSTON MARATHON 2025

Michal Marek

Bib: 6811•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:44/mi
20:56
↑ 97↓ 3451.5%
10K· 6.21 mi
6:40/mi
41:40
↑ 79↓ 1380.4%
15K· 9.32 mi
6:43/mi
1:02:33
↑ 67↓ 78
20K· 12.43 mi
6:50/mi
1:23:48
↑ 106↓ 860.1%
Half· 13.11 mi
6:49/mi
1:28:27
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:46:26
↑ 66↓ 880.2%
30K· 18.64 mi
7:45/mi
2:10:31
↑ 181↓ 1480.2%
20M
7:46/mi
2:21:04
↑ 64↓ 500.2%
21M
8:43/mi
2:29:47
↑ 106↓ 241.6%
35K· 21.75 mi
7:37/mi
2:35:29
↑ 17↓ 861.7%
23M
7:35/mi
2:44:59
↑ 23↓ 630.6%
24M
7:15/mi
2:52:14
↓ 821.3%
40K· 24.85 mi
7:10/mi
2:58:22
↓ 200.3%
25.2M
8:07/mi
3:01:10
↑ 13↓ 160.2%
Finish· 26.22 mi
6:58/mi
3:08:16
↑ 22↓ 21

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
Time1:39:49
Pace7:37 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:0120:566:4420:56
6:44
-
10K
6.21 mi10:47:4541:406:4220:44
6:40
-0:04
15K
9.32 mi11:08:381:02:336:4320:53
6:43
+0:03
20K
12.43 mi11:29:531:23:486:4521:15
6:50
+0:07
Half
13.11 mi11:34:321:28:276:454:39
6:49
-0:01
25K
15.53 mi11:52:311:46:266:5117:59
7:25
+0:36
30K
18.64 mi12:16:362:10:317:0024:05
7:45
+0:20
20M
20.00 mi12:27:092:21:047:0310:33
7:46
+0:01
21M
21.00 mi12:35:522:29:477:088:43
8:43
+0:57
35K
21.75 mi12:41:342:35:297:095:42
7:37
-1:06
23M
23.00 mi12:51:042:44:597:109:30
7:35
-0:02
24M
24.00 mi12:58:192:52:147:117:15
7:15
-0:20
40K
24.85 mi13:04:272:58:227:116:08
7:10
-0:05
25.2M
25.20 mi13:07:153:01:107:112:48
8:07
+0:57
Finish
26.22 mi13:14:213:08:167:117:06
6:58
-1:09

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

6:40 /mi

Average Pace

7:11 /mi

Slowest Pace

8:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:27

47% of race

Time at Steady Pace

38:28

20% of race

Time at Slower Pace

1:01:21

33% of race

Average Pace: 7:11 /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 mi10:27:0120:566:4420:56
6:44
#5790
10K
6.21 mi10:47:4541:406:4220:44
6:40
#5426
15K
9.32 mi11:08:381:02:336:4320:53
6:43
#5358
20K
12.43 mi11:29:531:23:486:4521:15
6:50
#5415
Half
13.11 mi11:34:321:28:276:454:39
6:49
#5458
25K
15.53 mi11:52:311:46:266:5117:59
7:25
#6174
30K
18.64 mi12:16:362:10:317:0024:05
7:45
#6682
20M
20.00 mi12:27:092:21:047:0310:33
7:46
#6728
21M
21.00 mi12:35:522:29:477:088:43
8:43
#6931
35K
21.75 mi12:41:342:35:297:095:42
7:37
#6999
23M
23.00 mi12:51:042:44:597:109:30
7:35
#6944
24M
24.00 mi12:58:192:52:147:117:15
7:15
#6827
40K
24.85 mi13:04:272:58:227:116:08
7:10
#6679
25.2M
25.20 mi13:07:153:01:107:112:48
8:07
#6667
Finish
26.22 mi13:14:213:08:167:117:06
6:58
#6559
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5790534253425297(Top 19%)4896(Top 30%)4896(Top 87%)
10K6.21 mi3.10 mi5426+3645025+3175025+3175107(Top 18%)4759(Top 30%)4759(Top 84%)
15K9.32 mi3.11 mi5358+684967+584967+585297(Top 19%)4896(Top 30%)4896(Top 87%)
20K12.43 mi3.11 mi5415-575004-375004-375699(Top 20%)5197(Top 32%)5197(Top 92%)
Half13.11 mi0.68 mi5458-435038-345038-346300(Top 22%)5685(Top 35%)5685(Top 101%)
25K15.53 mi2.42 mi6174-7165595-5575595-5579270(Top 33%)7480(Top 46%)7480(Top 133%)
30K18.64 mi3.11 mi6682-5085967-3725967-3729549(Top 34%)7449(Top 46%)7449(Top 132%)
20M20.00 mi1.36 mi6728-465981-145981-148771(Top 31%)6875(Top 43%)6875(Top 122%)
21M21.00 mi1.00 mi6931-2036111-1306111-13011735(Top 41%)8227(Top 51%)8227(Top 146%)
35K21.75 mi0.75 mi6999-686139-286139-289414(Top 33%)7057(Top 44%)7057(Top 125%)
23M23.00 mi1.25 mi6944+556064+756064+757149(Top 25%)5664(Top 35%)5664(Top 100%)
24M24.00 mi1.00 mi6827+1175951+1135951+1136119(Top 22%)4996(Top 31%)4996(Top 89%)
40K24.85 mi0.85 mi6679+1485819+1325819+1324920(Top 17%)4164(Top 26%)4164(Top 74%)
25.2M25.20 mi0.35 mi6667+125798+215798+216571(Top 23%)5100(Top 32%)5100(Top 90%)
Finish26.22 mi1.02 mi6559+1085696+1025696+1025517(Top 19%)4441(Top 28%)4441(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21story building
+97ft-345ft

Overall

5297

Males

4896

M18-39

4896

5K→10K

3.1 - 6.2 mi

Top 18%
×5story building
+79ft-138ft

Overall

5107

Males

4759

M18-39

4759

10K→15K

6.2 - 9.3 mi

Top 19%
×3story building
+67ft-78ft

Overall

5297

Males

4896

M18-39

4896

15K→20K

9.3 - 12.4 mi

Top 20%
×5story building
+106ft-86ft

Overall

5699

Males

5197

M18-39

5197

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

6300

Males

5685

M18-39

5685

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

9270

Males

7480

M18-39

7480

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9549

Males

7449

M18-39

7449

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8771

Males

6875

M18-39

6875

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11735

Males

8227

M18-39

8227

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

9414

Males

7057

M18-39

7057

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

7149

Males

5664

M18-39

5664

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6119

Males

4996

M18-39

4996

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4920

Males

4164

M18-39

4164

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6571

Males

5100

M18-39

5100

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2story building
+22ft-21ft

Overall

5517

Males

4441

M18-39

4441

Passing Analysis

Category:
Athletes Passed
1511
Passed By
2280
Net Change
-769
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5790
5K → 10K42561+364#5790#5426
10K → 15K15688+68#5426#5358
15K → 20K102159-57#5358#5415
20K → Half1962-43#5415#5458
Half → 25K27743-716#5458#6174
25K → 30K68576-508#6174#6682
30K → 20M72118-46#6682#6728
20M → 21M36239-203#6728#6931
21M → 35K34102-68#6931#6999
35K → 23M11560+55#6999#6944
23M → 24M13417+117#6944#6827
24M → 40K16113+148#6827#6679
40K → 25.2M2816+12#6679#6667
25.2M → Finish13426+108#6667#6559
TOTALS15112280-769
📊

Passing Visuals

Category:
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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