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BOSTON MARATHON 2023

Michael Napierkowski

Bib: 13619•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:58
Rank: #16558
Start → 5K
25:58 | 8:21/mi
10K· 6.21 mi
52:14
Rank: #17246 (-688)
5K → 10K
26:16 | 8:27/mi
15K· 9.32 mi
1:18:32
Rank: #17364 (-118)
10K → 15K
26:18 | 8:28/mi
20K· 12.43 mi
1:45:08
Rank: #17315 (+49)
15K → 20K
26:36 | 8:34/mi
Half· 13.11 mi
1:50:51
Rank: #17297 (+18)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:11:45
Rank: #17217 (+80)
Half → 25K
20:54 | 8:37/mi
30K· 18.64 mi
2:39:47
Rank: #17189 (+28)
25K → 30K
28:02 | 9:01/mi
20M
2:52:21
Rank: #17236 (-47)
30K → 20M
12:34 | 9:15/mi
21M
3:02:23
Rank: #17295 (-59)
20M → 21M
10:02 | 10:02/mi
35K· 21.75 mi
3:09:21
Rank: #17377 (-82)
21M → 35K
6:58 | 9:19/mi
23M
3:21:51
Rank: #17620 (-243)
35K → 23M
12:30 | 9:59/mi
24M
3:31:37
Rank: #17822 (-202)
23M → 24M
9:46 | 9:46/mi
40K· 24.85 mi
3:40:22
Rank: #17983 (-161)
24M → 40K
8:45 | 10:14/mi
25.2M
3:44:25
Rank: #18100 (-117)
40K → 25.2M
4:03 | 11:45/mi
Finish· 26.22 mi
3:54:22
Rank: #18238 (-138)
25.2M → Finish
9:57 | 9:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:51
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time2:03:31
Pace9:25 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0325:588:2125:58
8:21
-
10K
6.21 mi11:22:1952:148:2426:16
8:27
+0:06
15K
9.32 mi11:48:371:18:328:2626:18
8:28
+0:01
20K
12.43 mi12:15:131:45:088:2826:36
8:34
+0:06
Half
13.11 mi12:20:561:50:518:275:43
8:23
-0:11
25K
15.53 mi12:41:502:11:458:2920:54
8:37
+0:14
30K
18.64 mi13:09:522:39:478:3428:02
9:01
+0:24
20M
20.00 mi13:22:262:52:218:3712:34
9:15
+0:14
21M
21.00 mi13:32:283:02:238:4110:02
10:02
+0:47
35K
21.75 mi13:39:263:09:218:426:58
9:19
-0:43
23M
23.00 mi13:51:563:21:518:4712:30
9:59
+0:40
24M
24.00 mi14:01:423:31:378:499:46
9:46
-0:13
40K
24.85 mi14:10:273:40:228:528:45
10:14
+0:28
25.2M
25.20 mi14:14:303:44:258:544:03
11:45
+1:31
Finish
26.22 mi14:24:273:54:228:579:57
9:46
-1:59

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

8:21 /mi

Average Pace

8:57 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:45

56% of race

Time at Steady Pace

47:34

20% of race

Time at Slower Pace

55:03

23% of race

Average Pace: 8:56 /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 mi10:56:0325:588:2125:58
8:21
#16558
10K
6.21 mi11:22:1952:148:2426:16
8:27
#17246
15K
9.32 mi11:48:371:18:328:2626:18
8:28
#17364
20K
12.43 mi12:15:131:45:088:2826:36
8:34
#17315
Half
13.11 mi12:20:561:50:518:275:43
8:23
#17297
25K
15.53 mi12:41:502:11:458:2920:54
8:37
#17217
30K
18.64 mi13:09:522:39:478:3428:02
9:01
#17189
20M
20.00 mi13:22:262:52:218:3712:34
9:15
#17236
21M
21.00 mi13:32:283:02:238:4110:02
10:02
#17295
35K
21.75 mi13:39:263:09:218:426:58
9:19
#17377
23M
23.00 mi13:51:563:21:518:4712:30
9:59
#17620
24M
24.00 mi14:01:423:31:378:499:46
9:46
#17822
40K
24.85 mi14:10:273:40:228:528:45
10:14
#17983
25.2M
25.20 mi14:14:303:44:258:544:03
11:45
#18100
Finish
26.22 mi14:24:273:54:228:579:57
9:46
#18238
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16558109021090217568(Top 66%)11295(Top 74%)11295(Top 794%)
10K6.21 mi3.10 mi17246-68811143-24111143-24117948(Top 67%)11480(Top 76%)11480(Top 807%)
15K9.32 mi3.11 mi17364-11811211-6811211-6817568(Top 66%)11295(Top 74%)11295(Top 794%)
20K12.43 mi3.11 mi17315+4911180+3111180+3117240(Top 65%)11154(Top 73%)11154(Top 784%)
Half13.11 mi0.68 mi17297+1811177+311177+316986(Top 64%)11084(Top 73%)11084(Top 779%)
25K15.53 mi2.42 mi17217+8011127+5011127+5016912(Top 64%)10936(Top 72%)10936(Top 769%)
30K18.64 mi3.11 mi17189+2811099+2811099+2817296(Top 65%)11035(Top 73%)11035(Top 776%)
20M20.00 mi1.36 mi17236-4711096+311096+317776(Top 67%)11133(Top 73%)11133(Top 783%)
21M21.00 mi1.00 mi17295-5911102-611102-618140(Top 68%)11280(Top 74%)11280(Top 793%)
35K21.75 mi0.75 mi17377-8211127-2511127-2519185(Top 72%)11668(Top 77%)11668(Top 821%)
23M23.00 mi1.25 mi17620-24311209-8211209-8219931(Top 75%)11991(Top 79%)11991(Top 843%)
24M24.00 mi1.00 mi17822-20211283-7411283-7420099(Top 75%)12047(Top 79%)12047(Top 847%)
40K24.85 mi0.85 mi17983-16111334-5111334-5120555(Top 77%)12172(Top 80%)12172(Top 856%)
25.2M25.20 mi0.35 mi18100-11711380-4611380-4622012(Top 83%)12845(Top 85%)12845(Top 903%)
Finish26.22 mi1.02 mi18238-13811428-4811428-4821013(Top 79%)12420(Top 82%)12420(Top 873%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

17568

Males

11295

M55-59

11295

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17948

Males

11480

M55-59

11480

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

17568

Males

11295

M55-59

11295

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

17240

Males

11154

M55-59

11154

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

16986

Males

11084

M55-59

11084

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

16912

Males

10936

M55-59

10936

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

17296

Males

11035

M55-59

11035

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

17776

Males

11133

M55-59

11133

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

18140

Males

11280

M55-59

11280

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19185

Males

11668

M55-59

11668

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

19931

Males

11991

M55-59

11991

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

20099

Males

12047

M55-59

12047

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20555

Males

12172

M55-59

12172

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22012

Males

12845

M55-59

12845

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

21013

Males

12420

M55-59

12420

Passing Analysis

Category:
Athletes Passed
1075
Passed By
2755
Net Change
-1680
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16558
5K → 10K102790-688#16558#17246
10K → 15K142260-118#17246#17364
15K → 20K188139+49#17364#17315
20K → Half4123+18#17315#17297
Half → 25K15979+80#17297#17217
25K → 30K185157+28#17217#17189
30K → 20M62109-47#17189#17236
20M → 21M68127-59#17236#17295
21M → 35K30112-82#17295#17377
35K → 23M35278-243#17377#17620
23M → 24M22224-202#17620#17822
24M → 40K16177-161#17822#17983
40K → 25.2M5122-117#17983#18100
25.2M → Finish20158-138#18100#18238
TOTALS10752755-1680
📊

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