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BOSTON MARATHON 2023

Lukas Chmatal

Bib: 4240•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 22%
Division (M18-39)
#0 / 5285
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:55
Rank: #3946
Start → 5K
20:55 | 6:44/mi
10K· 6.21 mi
41:29
Rank: #3748 (+198)
5K → 10K
20:34 | 6:37/mi
15K· 9.32 mi
1:01:52
Rank: #3464 (+284)
10K → 15K
20:23 | 6:34/mi
20K· 12.43 mi
1:22:43
Rank: #3501 (-37)
15K → 20K
20:51 | 6:43/mi
Half· 13.11 mi
1:27:13
Rank: #3483 (+18)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:43:55
Rank: #3682 (-199)
Half → 25K
16:42 | 6:53/mi
30K· 18.64 mi
2:05:52
Rank: #3871 (-189)
25K → 30K
21:57 | 7:04/mi
20M
2:15:27
Rank: #3893 (-22)
30K → 20M
9:35 | 7:03/mi
21M
2:22:47
Rank: #3857 (+36)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:27:54
Rank: #3883 (-26)
21M → 35K
5:07 | 6:50/mi
23M
2:36:47
Rank: #3900 (-17)
35K → 23M
8:53 | 7:06/mi
24M
2:43:36
Rank: #3878 (+22)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:49:23
Rank: #3792 (+86)
24M → 40K
5:47 | 6:46/mi
25.2M
2:51:55
Rank: #3771 (+21)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:58:26
Rank: #3626 (+145)
25.2M → Finish
6:31 | 6:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:13
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:31:13
Pace6:57 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4820:556:4420:55
6:44
-
10K
6.21 mi10:43:2241:296:4120:34
6:37
-0:07
15K
9.32 mi11:03:451:01:526:3820:23
6:34
-0:03
20K
12.43 mi11:24:361:22:436:3920:51
6:43
+0:09
Half
13.11 mi11:29:061:27:136:394:30
6:36
-0:07
25K
15.53 mi11:45:481:43:556:4116:42
6:53
+0:17
30K
18.64 mi12:07:452:05:526:4521:57
7:04
+0:11
20M
20.00 mi12:17:202:15:276:469:35
7:03
-0:01
21M
21.00 mi12:24:402:22:476:487:20
7:20
+0:17
35K
21.75 mi12:29:472:27:546:485:07
6:50
-0:30
23M
23.00 mi12:38:402:36:476:498:53
7:06
+0:16
24M
24.00 mi12:45:292:43:366:496:49
6:49
-0:17
40K
24.85 mi12:51:162:49:236:495:47
6:46
-0:03
25.2M
25.20 mi12:53:482:51:556:492:32
7:21
+0:35
Finish
26.22 mi13:00:192:58:266:496:31
6:24
-0:57

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

6:24 /mi

Average Pace

6:49 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:09

72% of race

Time at Steady Pace

50:17

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /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 mi10:22:4820:556:4420:55
6:44
#3946
10K
6.21 mi10:43:2241:296:4120:34
6:37
#3748
15K
9.32 mi11:03:451:01:526:3820:23
6:34
#3464
20K
12.43 mi11:24:361:22:436:3920:51
6:43
#3501
Half
13.11 mi11:29:061:27:136:394:30
6:36
#3483
25K
15.53 mi11:45:481:43:556:4116:42
6:53
#3682
30K
18.64 mi12:07:452:05:526:4521:57
7:04
#3871
20M
20.00 mi12:17:202:15:276:469:35
7:03
#3893
21M
21.00 mi12:24:402:22:476:487:20
7:20
#3857
35K
21.75 mi12:29:472:27:546:485:07
6:50
#3883
23M
23.00 mi12:38:402:36:476:498:53
7:06
#3900
24M
24.00 mi12:45:292:43:366:496:49
6:49
#3878
40K
24.85 mi12:51:162:49:236:495:47
6:46
#3792
25.2M
25.20 mi12:53:482:51:556:492:32
7:21
#3771
Finish
26.22 mi13:00:192:58:266:496:31
6:24
#3626
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3946370337033003(Top 11%)2867(Top 19%)2867(Top 54%)
10K6.21 mi3.10 mi3748+1983533+1703533+1703637(Top 14%)3434(Top 23%)3434(Top 65%)
15K9.32 mi3.11 mi3464+2843282+2513282+2513003(Top 11%)2867(Top 19%)2867(Top 54%)
20K12.43 mi3.11 mi3501-373318-363318-363661(Top 14%)3465(Top 23%)3465(Top 66%)
Half13.11 mi0.68 mi3483+183299+193299+193405(Top 13%)3236(Top 21%)3236(Top 61%)
25K15.53 mi2.42 mi3682-1993479-1803479-1804850(Top 18%)4489(Top 30%)4489(Top 85%)
30K18.64 mi3.11 mi3871-1893649-1703649-1704735(Top 18%)4369(Top 29%)4369(Top 83%)
20M20.00 mi1.36 mi3893-223668-193668-194313(Top 16%)3973(Top 26%)3973(Top 75%)
21M21.00 mi1.00 mi3857+363633+353633+353773(Top 14%)3496(Top 23%)3496(Top 66%)
35K21.75 mi0.75 mi3883-263651-183651-184400(Top 17%)4018(Top 26%)4018(Top 76%)
23M23.00 mi1.25 mi3900-173667-163667-164269(Top 16%)3896(Top 26%)3896(Top 74%)
24M24.00 mi1.00 mi3878+223640+273640+273733(Top 14%)3419(Top 23%)3419(Top 65%)
40K24.85 mi0.85 mi3792+863563+773563+772663(Top 10%)2462(Top 16%)2462(Top 47%)
25.2M25.20 mi0.35 mi3771+213544+193544+193153(Top 12%)2876(Top 19%)2876(Top 54%)
Finish26.22 mi1.02 mi3626+1453412+1323412+1322010(Top 8%)1875(Top 12%)1875(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

3003

Males

2867

M18-39

2867

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3637

Males

3434

M18-39

3434

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

3003

Males

2867

M18-39

2867

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3661

Males

3465

M18-39

3465

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3405

Males

3236

M18-39

3236

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

4850

Males

4489

M18-39

4489

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4735

Males

4369

M18-39

4369

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4313

Males

3973

M18-39

3973

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3773

Males

3496

M18-39

3496

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4400

Males

4018

M18-39

4018

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4269

Males

3896

M18-39

3896

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3733

Males

3419

M18-39

3419

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2663

Males

2462

M18-39

2462

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3153

Males

2876

M18-39

2876

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2010

Males

1875

M18-39

1875

Passing Analysis

Category:
Athletes Passed
1375
Passed By
1055
Net Change
+320
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3946
5K → 10K336138+198#3946#3748
10K → 15K30117+284#3748#3464
15K → 20K67104-37#3464#3501
20K → Half3113+18#3501#3483
Half → 25K34233-199#3483#3682
25K → 30K53242-189#3682#3871
30K → 20M5476-22#3871#3893
20M → 21M8448+36#3893#3857
21M → 35K2248-26#3857#3883
35K → 23M4764-17#3883#3900
23M → 24M6139+22#3900#3878
24M → 40K9913+86#3878#3792
40K → 25.2M3413+21#3792#3771
25.2M → Finish1527+145#3771#3626
TOTALS13751055+320
📊

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