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BOSTON MARATHON 2023

Jan Maly

Bib: 8404•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Male)
#0 / 15176
Top 39%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:57
Rank: #6652
Start → 5K
21:57 | 7:04/mi
10K· 6.21 mi
43:40
Rank: #6660 (-8)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:05:18
Rank: #6542 (+118)
10K → 15K
21:38 | 6:58/mi
20K· 12.43 mi
1:27:20
Rank: #6500 (+42)
15K → 20K
22:02 | 7:06/mi
Half· 13.11 mi
1:32:07
Rank: #6507 (-7)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:49:27
Rank: #6480 (+27)
Half → 25K
17:20 | 7:09/mi
30K· 18.64 mi
2:12:40
Rank: #6494 (-14)
25K → 30K
23:13 | 7:28/mi
20M
2:22:55
Rank: #6497 (-3)
30K → 20M
10:15 | 7:33/mi
21M
2:30:43
Rank: #6440 (+57)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:36:22
Rank: #6487 (-47)
21M → 35K
5:39 | 7:33/mi
23M
2:45:59
Rank: #6513 (-26)
35K → 23M
9:37 | 7:41/mi
24M
2:53:40
Rank: #6562 (-49)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
3:00:24
Rank: #6570 (-8)
24M → 40K
6:44 | 7:53/mi
25.2M
3:03:24
Rank: #6629 (-59)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:11:35
Rank: #6799 (-170)
25.2M → Finish
8:11 | 8:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:07
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:39:28
Pace7:35 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1221:577:0421:57
7:04
-
10K
6.21 mi11:08:5543:407:0221:43
6:59
-0:05
15K
9.32 mi11:30:331:05:187:0021:38
6:58
-0:01
20K
12.43 mi11:52:351:27:207:0222:02
7:06
+0:08
Half
13.11 mi11:57:221:32:077:024:47
7:01
-0:05
25K
15.53 mi12:14:421:49:277:0317:20
7:09
+0:08
30K
18.64 mi12:37:552:12:407:0723:13
7:28
+0:19
20M
20.00 mi12:48:102:22:557:0910:15
7:33
+0:05
21M
21.00 mi12:55:582:30:437:117:48
7:48
+0:15
35K
21.75 mi13:01:372:36:227:115:39
7:33
-0:15
23M
23.00 mi13:11:142:45:597:139:37
7:41
+0:08
24M
24.00 mi13:18:552:53:407:147:41
7:41
0:00
40K
24.85 mi13:25:393:00:247:156:44
7:53
+0:12
25.2M
25.20 mi13:28:393:03:247:173:00
8:42
+0:49
Finish
26.22 mi13:36:503:11:357:198:11
8:02
-0:40

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

6:58 /mi

Average Pace

7:19 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:27

57% of race

Time at Steady Pace

56:25

29% of race

Time at Slower Pace

25:43

13% of race

Average Pace: 7:18 /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 mi10:47:1221:577:0421:57
7:04
#6652
10K
6.21 mi11:08:5543:407:0221:43
6:59
#6660
15K
9.32 mi11:30:331:05:187:0021:38
6:58
#6542
20K
12.43 mi11:52:351:27:207:0222:02
7:06
#6500
Half
13.11 mi11:57:221:32:077:024:47
7:01
#6507
25K
15.53 mi12:14:421:49:277:0317:20
7:09
#6480
30K
18.64 mi12:37:552:12:407:0723:13
7:28
#6494
20M
20.00 mi12:48:102:22:557:0910:15
7:33
#6497
21M
21.00 mi12:55:582:30:437:117:48
7:48
#6440
35K
21.75 mi13:01:372:36:227:115:39
7:33
#6487
23M
23.00 mi13:11:142:45:597:139:37
7:41
#6513
24M
24.00 mi13:18:552:53:407:147:41
7:41
#6562
40K
24.85 mi13:25:393:00:247:156:44
7:53
#6570
25.2M
25.20 mi13:28:393:03:247:173:00
8:42
#6629
Finish
26.22 mi13:36:503:11:357:198:11
8:02
#6799
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6652600360036338(Top 24%)5726(Top 38%)5726(Top 108%)
10K6.21 mi3.10 mi6660-86002+16002+16749(Top 25%)6055(Top 40%)6055(Top 115%)
15K9.32 mi3.11 mi6542+1185904+985904+986338(Top 24%)5726(Top 38%)5726(Top 108%)
20K12.43 mi3.11 mi6500+425862+425862+426511(Top 24%)5848(Top 39%)5848(Top 111%)
Half13.11 mi0.68 mi6507-75866-45866-46592(Top 25%)5932(Top 39%)5932(Top 112%)
25K15.53 mi2.42 mi6480+275836+305836+306387(Top 24%)5714(Top 38%)5714(Top 108%)
30K18.64 mi3.11 mi6494-145837-15837-17029(Top 26%)6087(Top 40%)6087(Top 115%)
20M20.00 mi1.36 mi6497-35826+115826+117060(Top 27%)6012(Top 40%)6012(Top 114%)
21M21.00 mi1.00 mi6440+575768+585768+586172(Top 23%)5320(Top 35%)5320(Top 101%)
35K21.75 mi0.75 mi6487-475795-275795-278852(Top 33%)6976(Top 46%)6976(Top 132%)
23M23.00 mi1.25 mi6513-265802-75802-77605(Top 29%)6181(Top 41%)6181(Top 117%)
24M24.00 mi1.00 mi6562-495828-265828-268937(Top 34%)6851(Top 45%)6851(Top 130%)
40K24.85 mi0.85 mi6570-85813+155813+159129(Top 34%)6875(Top 45%)6875(Top 130%)
25.2M25.20 mi0.35 mi6629-595848-355848-3510647(Top 40%)7604(Top 50%)7604(Top 144%)
Finish26.22 mi1.02 mi6799-1705958-1105958-11012298(Top 46%)8412(Top 55%)8412(Top 159%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6338

Males

5726

M18-39

5726

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6749

Males

6055

M18-39

6055

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6338

Males

5726

M18-39

5726

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6511

Males

5848

M18-39

5848

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6592

Males

5932

M18-39

5932

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6387

Males

5714

M18-39

5714

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7029

Males

6087

M18-39

6087

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7060

Males

6012

M18-39

6012

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6172

Males

5320

M18-39

5320

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8852

Males

6976

M18-39

6976

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7605

Males

6181

M18-39

6181

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

8937

Males

6851

M18-39

6851

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9129

Males

6875

M18-39

6875

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10647

Males

7604

M18-39

7604

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12298

Males

8412

M18-39

8412

Passing Analysis

Category:
Athletes Passed
1051
Passed By
1198
Net Change
-147
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6652
5K → 10K188196-8#6652#6660
10K → 15K18264+118#6660#6542
15K → 20K12381+42#6542#6500
20K → Half1724-7#6500#6507
Half → 25K9164+27#6507#6480
25K → 30K110124-14#6480#6494
30K → 20M6265-3#6494#6497
20M → 21M8124+57#6497#6440
21M → 35K2673-47#6440#6487
35K → 23M5985-26#6487#6513
23M → 24M3483-49#6513#6562
24M → 40K5260-8#6562#6570
40K → 25.2M1170-59#6570#6629
25.2M → Finish15185-170#6629#6799
TOTALS10511198-147
📊

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