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BOSTON MARATHON 2024

Jan Klasek

Bib: 27299•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 28%
Gender (Male)
#0 / 14578
Top 40%
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:55
Rank: #12285
Start → 5K
23:55 | 7:42/mi
10K· 6.21 mi
46:55
Rank: #10915 (+1370)
5K → 10K
23:00 | 7:24/mi
15K· 9.32 mi
1:10:11
Rank: #10414 (+501)
10K → 15K
23:16 | 7:29/mi
20K· 12.43 mi
1:33:44
Rank: #9958 (+456)
15K → 20K
23:33 | 7:35/mi
Half· 13.11 mi
1:38:50
Rank: #9884 (+74)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:57:06
Rank: #9343 (+541)
Half → 25K
18:16 | 7:32/mi
30K· 18.64 mi
2:21:19
Rank: #8710 (+633)
25K → 30K
24:13 | 7:48/mi
20M
2:31:55
Rank: #8382 (+328)
30K → 20M
10:36 | 7:48/mi
21M
2:40:06
Rank: #8057 (+325)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:45:49
Rank: #7920 (+137)
21M → 35K
5:43 | 7:38/mi
23M
2:55:37
Rank: #7612 (+308)
35K → 23M
9:48 | 7:50/mi
24M
3:03:16
Rank: #7405 (+207)
23M → 24M
7:39 | 7:39/mi
40K· 24.85 mi
3:09:58
Rank: #7235 (+170)
24M → 40K
6:42 | 7:50/mi
25.2M
3:13:05
Rank: #7192 (+43)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:21:10
Rank: #7165 (+27)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:50
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:42:20
Pace7:48 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:4223:557:4223:55
7:42
-
10K
6.21 mi12:04:4246:557:3323:00
7:24
-0:18
15K
9.32 mi12:27:581:10:117:3223:16
7:29
+0:05
20K
12.43 mi12:51:311:33:447:3323:33
7:35
+0:06
Half
13.11 mi12:56:371:38:507:325:06
7:29
-0:06
25K
15.53 mi13:14:531:57:067:3218:16
7:32
+0:03
30K
18.64 mi13:39:062:21:197:3524:13
7:48
+0:16
20M
20.00 mi13:49:422:31:557:3610:36
7:48
0:00
21M
21.00 mi13:57:532:40:067:378:11
8:11
+0:23
35K
21.75 mi14:03:362:45:497:375:43
7:38
-0:33
23M
23.00 mi14:13:242:55:377:389:48
7:50
+0:12
24M
24.00 mi14:21:033:03:167:387:39
7:39
-0:11
40K
24.85 mi14:27:453:09:587:396:42
7:50
+0:11
25.2M
25.20 mi14:30:523:13:057:403:07
9:02
+1:12
Finish
26.22 mi14:38:573:21:107:418:05
7:56
-1:06

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

7:24 /mi

Average Pace

7:41 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

51:22

26% of race

Time at Steady Pace

2:10:25

65% of race

Time at Slower Pace

19:23

10% of race

Average Pace: 7:40 /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 mi11:41:4223:557:4223:55
7:42
#12285
10K
6.21 mi12:04:4246:557:3323:00
7:24
#10915
15K
9.32 mi12:27:581:10:117:3223:16
7:29
#10414
20K
12.43 mi12:51:311:33:447:3323:33
7:35
#9958
Half
13.11 mi12:56:371:38:507:325:06
7:29
#9884
25K
15.53 mi13:14:531:57:067:3218:16
7:32
#9343
30K
18.64 mi13:39:062:21:197:3524:13
7:48
#8710
20M
20.00 mi13:49:422:31:557:3610:36
7:48
#8382
21M
21.00 mi13:57:532:40:067:378:11
8:11
#8057
35K
21.75 mi14:03:362:45:497:375:43
7:38
#7920
23M
23.00 mi14:13:242:55:377:389:48
7:50
#7612
24M
24.00 mi14:21:033:03:167:387:39
7:39
#7405
40K
24.85 mi14:27:453:09:587:396:42
7:50
#7235
25.2M
25.20 mi14:30:523:13:057:403:07
9:02
#7192
Finish
26.22 mi14:38:573:21:107:418:05
7:56
#7165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi12285895489549577(Top 37%)7586(Top 52%)7586(Top 156%)
10K6.21 mi3.10 mi10915+13708317+6378317+6379432(Top 37%)7563(Top 52%)7563(Top 156%)
15K9.32 mi3.11 mi10414+5018087+2308087+2309577(Top 37%)7586(Top 52%)7586(Top 156%)
20K12.43 mi3.11 mi9958+4567805+2827805+2828940(Top 35%)7133(Top 49%)7133(Top 147%)
Half13.11 mi0.68 mi9884+747766+397766+398855(Top 35%)7072(Top 49%)7072(Top 146%)
25K15.53 mi2.42 mi9343+5417449+3177449+3177181(Top 28%)5929(Top 41%)5929(Top 122%)
30K18.64 mi3.11 mi8710+6337016+4337016+4336681(Top 26%)5433(Top 37%)5433(Top 112%)
20M20.00 mi1.36 mi8382+3286760+2566760+2565711(Top 22%)4683(Top 32%)4683(Top 97%)
21M21.00 mi1.00 mi8057+3256523+2376523+2374857(Top 19%)4013(Top 28%)4013(Top 83%)
35K21.75 mi0.75 mi7920+1376422+1016422+1015785(Top 23%)4564(Top 31%)4564(Top 94%)
23M23.00 mi1.25 mi7612+3086183+2396183+2394931(Top 19%)3941(Top 27%)3941(Top 81%)
24M24.00 mi1.00 mi7405+2076019+1646019+1644785(Top 19%)3791(Top 26%)3791(Top 78%)
40K24.85 mi0.85 mi7235+1705875+1445875+1444956(Top 19%)3775(Top 26%)3775(Top 78%)
25.2M25.20 mi0.35 mi7192+435830+455830+456667(Top 26%)4638(Top 32%)4638(Top 96%)
Finish26.22 mi1.02 mi7165+275772+585772+588113(Top 32%)5451(Top 37%)5451(Top 112%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9577

Males

7586

M18-39

7586

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9432

Males

7563

M18-39

7563

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9577

Males

7586

M18-39

7586

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

8940

Males

7133

M18-39

7133

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

8855

Males

7072

M18-39

7072

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7181

Males

5929

M18-39

5929

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6681

Males

5433

M18-39

5433

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5711

Males

4683

M18-39

4683

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

4857

Males

4013

M18-39

4013

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

5785

Males

4564

M18-39

4564

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

4931

Males

3941

M18-39

3941

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

4785

Males

3791

M18-39

3791

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4956

Males

3775

M18-39

3775

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6667

Males

4638

M18-39

4638

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8113

Males

5451

M18-39

5451

Passing Analysis

Category:
Athletes Passed
5374*
Passed By
254
Net Change
+5120
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12285
5K → 10K138111+1370#12285#10915
10K → 15K52827+501#10915#10414
15K → 20K485*29+456#10414#9958
20K → Half839+74#9958#9884
Half → 25K5509+541#9884#9343
25K → 30K65421+633#9343#8710
30K → 20M34214+328#8710#8382
20M → 21M3305+325#8382#8057
21M → 35K14811+137#8057#7920
35K → 23M32618+308#7920#7612
23M → 24M21912+207#7612#7405
24M → 40K1799+170#7405#7235
40K → 25.2M6118+43#7235#7192
25.2M → Finish8861+27#7192#7165
TOTALS5374*254+5120

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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