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BOSTON MARATHON 2023

Stephan Netzhammer

Bib: 30930•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:23
Rank: #20991
Start → 5K
28:23 | 9:08/mi
10K· 6.21 mi
55:35
Rank: #20407 (+584)
5K → 10K
27:12 | 8:45/mi
15K· 9.32 mi
1:22:53
Rank: #20084 (+323)
10K → 15K
27:18 | 8:47/mi
20K· 12.43 mi
1:50:10
Rank: #19661 (+423)
15K → 20K
27:17 | 8:47/mi
Half· 13.11 mi
1:56:14
Rank: #19694 (-33)
20K → Half
6:04 | 8:54/mi
25K· 15.53 mi
2:18:04
Rank: #19559 (+135)
Half → 25K
21:50 | 9:00/mi
30K· 18.64 mi
2:47:58
Rank: #19637 (-78)
25K → 30K
29:54 | 9:37/mi
20M
3:01:12
Rank: #19646 (-9)
30K → 20M
13:14 | 9:44/mi
21M
3:11:46
Rank: #19638 (+8)
20M → 21M
10:34 | 10:34/mi
35K· 21.75 mi
3:19:06
Rank: #19698 (-60)
21M → 35K
7:20 | 9:48/mi
23M
3:31:19
Rank: #19689 (+9)
35K → 23M
12:13 | 9:45/mi
24M
3:41:03
Rank: #19702 (-13)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
3:49:22
Rank: #19693 (+9)
24M → 40K
8:19 | 9:44/mi
25.2M
3:52:41
Rank: #19640 (+53)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
4:01:52
Rank: #19587 (+53)
25.2M → Finish
9:11 | 9:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:14
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:05:38
Pace9:35 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0128:239:0828:23
9:08
-
10K
6.21 mi12:16:1355:358:5727:12
8:45
-0:23
15K
9.32 mi12:43:311:22:538:5427:18
8:47
+0:02
20K
12.43 mi13:10:481:50:108:5227:17
8:47
0:00
Half
13.11 mi13:16:521:56:148:526:04
8:54
+0:07
25K
15.53 mi13:38:422:18:048:5321:50
9:00
+0:06
30K
18.64 mi14:08:362:47:589:0129:54
9:37
+0:37
20M
20.00 mi14:21:503:01:129:0413:14
9:44
+0:07
21M
21.00 mi14:32:243:11:469:0810:34
10:34
+0:50
35K
21.75 mi14:39:443:19:069:097:20
9:48
-0:46
23M
23.00 mi14:51:573:31:199:1112:13
9:45
-0:03
24M
24.00 mi15:01:413:41:039:139:44
9:44
-0:01
40K
24.85 mi15:10:003:49:229:148:19
9:44
0:00
25.2M
25.20 mi15:13:193:52:419:143:19
9:37
-0:07
Finish
26.22 mi15:22:304:01:529:149:11
9:01
-0:36

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

8:45 /mi

Average Pace

9:14 /mi

Slowest Pace

10:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:15

61% of race

Time at Steady Pace

1:24:03

35% of race

Time at Slower Pace

10:34

4% of race

Average Pace: 9:13 /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 mi11:49:0128:239:0828:23
9:08
#20991
10K
6.21 mi12:16:1355:358:5727:12
8:45
#20407
15K
9.32 mi12:43:311:22:538:5427:18
8:47
#20084
20K
12.43 mi13:10:481:50:108:5227:17
8:47
#19661
Half
13.11 mi13:16:521:56:148:526:04
8:54
#19694
25K
15.53 mi13:38:422:18:048:5321:50
9:00
#19559
30K
18.64 mi14:08:362:47:589:0129:54
9:37
#19637
20M
20.00 mi14:21:503:01:129:0413:14
9:44
#19646
21M
21.00 mi14:32:243:11:469:0810:34
10:34
#19638
35K
21.75 mi14:39:443:19:069:097:20
9:48
#19698
23M
23.00 mi14:51:573:31:199:1112:13
9:45
#19689
24M
24.00 mi15:01:413:41:039:139:44
9:44
#19702
40K
24.85 mi15:10:003:49:229:148:19
9:44
#19693
25.2M
25.20 mi15:13:193:52:419:143:19
9:37
#19640
Finish
26.22 mi15:22:304:01:529:149:11
9:01
#19587
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi20991126041260419431(Top 73%)12061(Top 79%)12061(Top 588%)
10K6.21 mi3.10 mi20407+58412405+19912405+19919699(Top 74%)12167(Top 80%)12167(Top 593%)
15K9.32 mi3.11 mi20084+32312278+12712278+12719431(Top 73%)12061(Top 79%)12061(Top 588%)
20K12.43 mi3.11 mi19661+42312122+15612122+15618564(Top 70%)11718(Top 77%)11718(Top 571%)
Half13.11 mi0.68 mi19694-3312143-2112143-2119930(Top 75%)12283(Top 81%)12283(Top 599%)
25K15.53 mi2.42 mi19559+13512081+6212081+6218973(Top 71%)11839(Top 78%)11839(Top 577%)
30K18.64 mi3.11 mi19637-7812107-2612107-2619874(Top 75%)12157(Top 80%)12157(Top 592%)
20M20.00 mi1.36 mi19646-912101+612101+619661(Top 74%)11967(Top 79%)11967(Top 583%)
21M21.00 mi1.00 mi19638+812083+1812083+1819787(Top 74%)11955(Top 79%)11955(Top 583%)
35K21.75 mi0.75 mi19698-6012103-2012103-2020747(Top 78%)12362(Top 81%)12362(Top 602%)
23M23.00 mi1.25 mi19689+912089+1412089+1419277(Top 72%)11687(Top 77%)11687(Top 570%)
24M24.00 mi1.00 mi19702-1312087+212087+219997(Top 75%)12002(Top 79%)12002(Top 585%)
40K24.85 mi0.85 mi19693+912070+1712070+1719102(Top 72%)11538(Top 76%)11538(Top 562%)
25.2M25.20 mi0.35 mi19640+5312042+2812042+2815731(Top 59%)10019(Top 66%)10019(Top 488%)
Finish26.22 mi1.02 mi19587+5312012+3012012+3018030(Top 68%)11090(Top 73%)11090(Top 540%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

19431

Males

12061

M50-54

12061

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19699

Males

12167

M50-54

12167

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

19431

Males

12061

M50-54

12061

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

18564

Males

11718

M50-54

11718

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

19930

Males

12283

M50-54

12283

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18973

Males

11839

M50-54

11839

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

19874

Males

12157

M50-54

12157

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

19661

Males

11967

M50-54

11967

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19787

Males

11955

M50-54

11955

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20747

Males

12362

M50-54

12362

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19277

Males

11687

M50-54

11687

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

19997

Males

12002

M50-54

12002

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19102

Males

11538

M50-54

11538

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15731

Males

10019

M50-54

10019

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

18030

Males

11090

M50-54

11090

Passing Analysis

Category:
Athletes Passed
2368
Passed By
964
Net Change
+1404
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20991
5K → 10K695111+584#20991#20407
10K → 15K38360+323#20407#20084
15K → 20K44724+423#20084#19661
20K → Half2053-33#19661#19694
Half → 25K18449+135#19694#19559
25K → 30K138216-78#19559#19637
30K → 20M8190-9#19637#19646
20M → 21M8678+8#19646#19638
21M → 35K2888-60#19638#19698
35K → 23M7869+9#19698#19689
23M → 24M4154-13#19689#19702
24M → 40K5849+9#19702#19693
40K → 25.2M574+53#19693#19640
25.2M → Finish7219+53#19640#19587
TOTALS2368964+1404
📊

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