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BOSTON MARATHON 2023

David Lademan

Bib: 2045•M

TX

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0:00
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
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
24:16
Rank: #12420
Start → 5K
24:16 | 7:49/mi
10K· 6.21 mi
46:32
Rank: #9904 (+2516)
5K → 10K
22:16 | 7:10/mi
15K· 9.32 mi
1:07:28
Rank: #8031 (+1873)
10K → 15K
20:56 | 6:44/mi
20K· 12.43 mi
1:28:49
Rank: #7205 (+826)
15K → 20K
21:21 | 6:52/mi
Half· 13.11 mi
1:33:28
Rank: #7110 (+95)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:50:33
Rank: #6868 (+242)
Half → 25K
17:05 | 7:03/mi
30K· 18.64 mi
2:14:12
Rank: #6989 (-121)
25K → 30K
23:39 | 7:37/mi
20M
2:24:37
Rank: #7005 (-16)
30K → 20M
10:25 | 7:40/mi
21M
2:32:38
Rank: #6970 (+35)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:38:36
Rank: #7122 (-152)
21M → 35K
5:58 | 7:59/mi
23M
2:49:10
Rank: #7378 (-256)
35K → 23M
10:34 | 8:26/mi
24M
2:57:26
Rank: #7577 (-199)
23M → 24M
8:16 | 8:16/mi
40K· 24.85 mi
3:04:26
Rank: #7706 (-129)
24M → 40K
7:00 | 8:11/mi
25.2M
3:07:23
Rank: #7734 (-28)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:15:09
Rank: #7774 (-40)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:28
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:41:41
Pace7:45 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0824:167:4924:16
7:49
-
10K
6.21 mi10:47:2446:327:2922:16
7:10
-0:39
15K
9.32 mi11:08:201:07:287:1420:56
6:44
-0:26
20K
12.43 mi11:29:411:28:497:0921:21
6:52
+0:08
Half
13.11 mi11:34:201:33:287:084:39
6:49
-0:03
25K
15.53 mi11:51:251:50:337:0717:05
7:03
+0:14
30K
18.64 mi12:15:042:14:127:1223:39
7:37
+0:34
20M
20.00 mi12:25:292:24:377:1410:25
7:40
+0:03
21M
21.00 mi12:33:302:32:387:168:01
8:01
+0:21
35K
21.75 mi12:39:282:38:367:185:58
7:59
-0:02
23M
23.00 mi12:50:022:49:107:2110:34
8:26
+0:27
24M
24.00 mi12:58:182:57:267:248:16
8:16
-0:10
40K
24.85 mi13:05:183:04:267:257:00
8:11
-0:05
25.2M
25.20 mi13:08:153:07:237:262:57
8:33
+0:22
Finish
26.22 mi13:16:013:15:097:277:46
7:37
-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

6:44 /mi

Average Pace

7:27 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:17

44% of race

Time at Steady Pace

1:06:06

34% of race

Time at Slower Pace

42:46

22% of race

Average Pace: 7:27 /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 mi10:25:0824:167:4924:16
7:49
#12420
10K
6.21 mi10:47:2446:327:2922:16
7:10
#9904
15K
9.32 mi11:08:201:07:287:1420:56
6:44
#8031
20K
12.43 mi11:29:411:28:497:0921:21
6:52
#7205
Half
13.11 mi11:34:201:33:287:084:39
6:49
#7110
25K
15.53 mi11:51:251:50:337:0717:05
7:03
#6868
30K
18.64 mi12:15:042:14:127:1223:39
7:37
#6989
20M
20.00 mi12:25:292:24:377:1410:25
7:40
#7005
21M
21.00 mi12:33:302:32:387:168:01
8:01
#6970
35K
21.75 mi12:39:282:38:367:185:58
7:59
#7122
23M
23.00 mi12:50:022:49:107:2110:34
8:26
#7378
24M
24.00 mi12:58:182:57:267:248:16
8:16
#7577
40K
24.85 mi13:05:183:04:267:257:00
8:11
#7706
25.2M
25.20 mi13:08:153:07:237:262:57
8:33
#7734
Finish
26.22 mi13:16:013:15:097:277:46
7:37
#7774
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi12420928492844509(Top 17%)4213(Top 28%)4213(Top 80%)
10K6.21 mi3.10 mi9904+25168092+11928092+11927869(Top 30%)6849(Top 45%)6849(Top 130%)
15K9.32 mi3.11 mi8031+18736973+11196973+11194509(Top 17%)4213(Top 28%)4213(Top 80%)
20K12.43 mi3.11 mi7205+8266396+5776396+5775141(Top 19%)4756(Top 31%)4756(Top 90%)
Half13.11 mi0.68 mi7110+956329+676329+675447(Top 20%)5030(Top 33%)5030(Top 95%)
25K15.53 mi2.42 mi6868+2426142+1876142+1875830(Top 22%)5317(Top 35%)5317(Top 101%)
30K18.64 mi3.11 mi6989-1216205-636205-638003(Top 30%)6687(Top 44%)6687(Top 127%)
20M20.00 mi1.36 mi7005-166211-66211-67900(Top 30%)6526(Top 43%)6526(Top 123%)
21M21.00 mi1.00 mi6970+356173+386173+387436(Top 28%)6140(Top 40%)6140(Top 116%)
35K21.75 mi0.75 mi7122-1526270-976270-9711877(Top 45%)8488(Top 56%)8488(Top 161%)
23M23.00 mi1.25 mi7378-2566400-1306400-13012806(Top 48%)8812(Top 58%)8812(Top 167%)
24M24.00 mi1.00 mi7577-1996519-1196519-11913008(Top 49%)8843(Top 58%)8843(Top 167%)
40K24.85 mi0.85 mi7706-1296582-636582-6311228(Top 42%)7933(Top 52%)7933(Top 150%)
25.2M25.20 mi0.35 mi7734-286592-106592-109784(Top 37%)7170(Top 47%)7170(Top 136%)
Finish26.22 mi1.02 mi7774-406596-46596-49381(Top 35%)6950(Top 46%)6950(Top 132%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4509

Males

4213

M18-39

4213

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

7869

Males

6849

M18-39

6849

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4509

Males

4213

M18-39

4213

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5141

Males

4756

M18-39

4756

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5447

Males

5030

M18-39

5030

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5830

Males

5317

M18-39

5317

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8003

Males

6687

M18-39

6687

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

7900

Males

6526

M18-39

6526

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7436

Males

6140

M18-39

6140

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

11877

Males

8488

M18-39

8488

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12806

Males

8812

M18-39

8812

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13008

Males

8843

M18-39

8843

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11228

Males

7933

M18-39

7933

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9784

Males

7170

M18-39

7170

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9381

Males

6950

M18-39

6950

Passing Analysis

Category:
Athletes Passed
5918*
Passed By
1272
Net Change
+4646
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12420
5K → 10K2522*6+2516#12420#9904
10K → 15K18730+1873#9904#8031
15K → 20K8260+826#8031#7205
20K → Half961+95#7205#7110
Half → 25K2486+242#7110#6868
25K → 30K75196-121#6868#6989
30K → 20M4662-16#6989#7005
20M → 21M7944+35#7005#6970
21M → 35K6158-152#6970#7122
35K → 23M33289-256#7122#7378
23M → 24M18217-199#7378#7577
24M → 40K31160-129#7577#7706
40K → 25.2M1846-28#7706#7734
25.2M → Finish4787-40#7734#7774
TOTALS5918*1272+4646

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

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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