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BOSTON MARATHON 2023

Nicholas Blei

Bib: 6519•M

NH

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 33%
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
21:05
Rank: #4557
Start → 5K
21:05 | 6:47/mi
10K· 6.21 mi
42:13
Rank: #4921 (-364)
5K → 10K
21:08 | 6:48/mi
15K· 9.32 mi
1:03:21
Rank: #4976 (-55)
10K → 15K
21:08 | 6:48/mi
20K· 12.43 mi
1:24:42
Rank: #4982 (-6)
15K → 20K
21:21 | 6:52/mi
Half· 13.11 mi
1:29:24
Rank: #5050 (-68)
20K → Half
4:42 | 6:53/mi
25K· 15.53 mi
1:46:12
Rank: #5061 (-11)
Half → 25K
16:48 | 6:56/mi
30K· 18.64 mi
2:08:37
Rank: #5177 (-116)
25K → 30K
22:25 | 7:13/mi
20M
2:18:37
Rank: #5236 (-59)
30K → 20M
10:00 | 7:22/mi
21M
2:26:31
Rank: #5266 (-30)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:32:00
Rank: #5319 (-53)
21M → 35K
5:29 | 7:20/mi
23M
2:41:37
Rank: #5381 (-62)
35K → 23M
9:37 | 7:41/mi
24M
2:49:07
Rank: #5430 (-49)
23M → 24M
7:30 | 7:30/mi
40K· 24.85 mi
2:55:46
Rank: #5483 (-53)
24M → 40K
6:39 | 7:47/mi
25.2M
2:58:37
Rank: #5490 (-7)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:06:08
Rank: #5512 (-22)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:24
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:36:44
Pace7:23 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1421:056:4721:05
6:47
-
10K
6.21 mi10:45:2242:136:4821:08
6:48
+0:01
15K
9.32 mi11:06:301:03:216:4821:08
6:48
0:00
20K
12.43 mi11:27:511:24:426:4921:21
6:52
+0:04
Half
13.11 mi11:32:331:29:246:494:42
6:53
+0:01
25K
15.53 mi11:49:211:46:126:5016:48
6:56
+0:03
30K
18.64 mi12:11:462:08:376:5422:25
7:13
+0:17
20M
20.00 mi12:21:462:18:376:5610:00
7:22
+0:09
21M
21.00 mi12:29:402:26:316:597:54
7:54
+0:32
35K
21.75 mi12:35:092:32:006:595:29
7:20
-0:34
23M
23.00 mi12:44:462:41:377:029:37
7:41
+0:21
24M
24.00 mi12:52:162:49:077:037:30
7:30
-0:11
40K
24.85 mi12:58:552:55:467:046:39
7:47
+0:17
25.2M
25.20 mi13:01:462:58:377:052:51
8:16
+0:29
Finish
26.22 mi13:09:173:06:087:067:31
7:23
-0:53

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

6:47 /mi

Average Pace

7:06 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:12

57% of race

Time at Steady Pace

52:55

28% of race

Time at Slower Pace

27:01

15% of race

Average Pace: 7:06 /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 mi10:24:1421:056:4721:05
6:47
#4557
10K
6.21 mi10:45:2242:136:4821:08
6:48
#4921
15K
9.32 mi11:06:301:03:216:4821:08
6:48
#4976
20K
12.43 mi11:27:511:24:426:4921:21
6:52
#4982
Half
13.11 mi11:32:331:29:246:494:42
6:53
#5050
25K
15.53 mi11:49:211:46:126:5016:48
6:56
#5061
30K
18.64 mi12:11:462:08:376:5422:25
7:13
#5177
20M
20.00 mi12:21:462:18:376:5610:00
7:22
#5236
21M
21.00 mi12:29:402:26:316:597:54
7:54
#5266
35K
21.75 mi12:35:092:32:006:595:29
7:20
#5319
23M
23.00 mi12:44:462:41:377:029:37
7:41
#5381
24M
24.00 mi12:52:162:49:077:037:30
7:30
#5430
40K
24.85 mi12:58:552:55:467:046:39
7:47
#5483
25.2M
25.20 mi13:01:462:58:377:052:51
8:16
#5490
Finish
26.22 mi13:09:173:06:087:067:31
7:23
#5512
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4557425142515152(Top 19%)4769(Top 31%)4769(Top 90%)
10K6.21 mi3.10 mi4921-3644566-3154566-3155322(Top 20%)4917(Top 32%)4917(Top 93%)
15K9.32 mi3.11 mi4976-554620-544620-545152(Top 19%)4769(Top 31%)4769(Top 90%)
20K12.43 mi3.11 mi4982-64634-144634-145131(Top 19%)4746(Top 31%)4746(Top 90%)
Half13.11 mi0.68 mi5050-684690-564690-565896(Top 22%)5405(Top 36%)5405(Top 102%)
25K15.53 mi2.42 mi5061-114699-94699-95147(Top 19%)4750(Top 31%)4750(Top 90%)
30K18.64 mi3.11 mi5177-1164793-944793-945573(Top 21%)5053(Top 33%)5053(Top 96%)
20M20.00 mi1.36 mi5236-594839-464839-465949(Top 22%)5249(Top 35%)5249(Top 99%)
21M21.00 mi1.00 mi5266-304855-164855-166691(Top 25%)5660(Top 37%)5660(Top 107%)
35K21.75 mi0.75 mi5319-534892-374892-377272(Top 27%)6045(Top 40%)6045(Top 114%)
23M23.00 mi1.25 mi5381-624936-444936-447595(Top 29%)6171(Top 41%)6171(Top 117%)
24M24.00 mi1.00 mi5430-494969-334969-337662(Top 29%)6100(Top 40%)6100(Top 115%)
40K24.85 mi0.85 mi5483-534999-304999-308467(Top 32%)6519(Top 43%)6519(Top 123%)
25.2M25.20 mi0.35 mi5490-75002-35002-37957(Top 30%)6117(Top 40%)6117(Top 116%)
Finish26.22 mi1.02 mi5512-225009-75009-77584(Top 28%)5913(Top 39%)5913(Top 112%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5152

Males

4769

M18-39

4769

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5322

Males

4917

M18-39

4917

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5152

Males

4769

M18-39

4769

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5131

Males

4746

M18-39

4746

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5896

Males

5405

M18-39

5405

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5147

Males

4750

M18-39

4750

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5573

Males

5053

M18-39

5053

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5949

Males

5249

M18-39

5249

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6691

Males

5660

M18-39

5660

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7272

Males

6045

M18-39

6045

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7595

Males

6171

M18-39

6171

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

7662

Males

6100

M18-39

6100

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8467

Males

6519

M18-39

6519

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7957

Males

6117

M18-39

6117

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7584

Males

5913

M18-39

5913

Passing Analysis

Category:
Athletes Passed
776
Passed By
1731
Net Change
-955
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4557
5K → 10K83447-364#4557#4921
10K → 15K91146-55#4921#4976
15K → 20K103109-6#4976#4982
20K → Half775-68#4982#5050
Half → 25K105116-11#5050#5061
25K → 30K99215-116#5061#5177
30K → 20M44103-59#5177#5236
20M → 21M4878-30#5236#5266
21M → 35K2174-53#5266#5319
35K → 23M40102-62#5319#5381
23M → 24M3786-49#5381#5430
24M → 40K2982-53#5430#5483
40K → 25.2M2229-7#5483#5490
25.2M → Finish4769-22#5490#5512
TOTALS7761731-955
📊

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