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BOSTON MARATHON 2023

John Zenner

Bib: 29010•M

CO

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0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
25:47
Rank: #16135
Start → 5K
25:47 | 8:18/mi
10K· 6.21 mi
51:15
Rank: #16171 (-36)
5K → 10K
25:28 | 8:12/mi
15K· 9.32 mi
1:16:45
Rank: #16072 (+99)
10K → 15K
25:30 | 8:12/mi
20K· 12.43 mi
1:45:21
Rank: #17415 (-1343)
15K → 20K
28:36 | 9:12/mi
Half· 13.11 mi
1:51:08
Rank: #17412 (+3)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:12:09
Rank: #17360 (+52)
Half → 25K
21:01 | 8:40/mi
30K· 18.64 mi
2:41:28
Rank: #17725 (-365)
25K → 30K
29:19 | 9:26/mi
20M
2:54:01
Rank: #17731 (-6)
30K → 20M
12:33 | 9:14/mi
21M
3:06:23
Rank: #18398 (-667)
20M → 21M
12:22 | 12:22/mi
35K· 21.75 mi
3:13:02
Rank: #18357 (+41)
21M → 35K
6:39 | 8:53/mi
23M
3:24:29
Rank: #18265 (+92)
35K → 23M
11:27 | 9:09/mi
24M
3:34:03
Rank: #18335 (-70)
23M → 24M
9:34 | 9:34/mi
40K· 24.85 mi
3:43:12
Rank: #18550 (-215)
24M → 40K
9:09 | 10:42/mi
25.2M
3:47:49
Rank: #18770 (-220)
40K → 25.2M
4:37 | 13:23/mi
Finish· 26.22 mi
3:56:41
Rank: #18704 (+66)
25.2M → Finish
8:52 | 8:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:08
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:05:33
Pace9:35 /mi
📊Positive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:3225:478:1825:47
8:18
-
10K
6.21 mi12:09:0051:158:1525:28
8:12
-0:06
15K
9.32 mi12:34:301:16:458:1425:30
8:12
0:00
20K
12.43 mi13:03:061:45:218:2928:36
9:12
+1:00
Half
13.11 mi13:08:531:51:088:295:47
8:29
-0:43
25K
15.53 mi13:29:542:12:098:3021:01
8:40
+0:11
30K
18.64 mi13:59:132:41:288:4029:19
9:26
+0:46
20M
20.00 mi14:11:462:54:018:4212:33
9:14
-0:12
21M
21.00 mi14:24:083:06:238:5312:22
12:22
+3:08
35K
21.75 mi14:30:473:13:028:536:39
8:53
-3:29
23M
23.00 mi14:42:143:24:298:5311:27
9:09
+0:16
24M
24.00 mi14:51:483:34:038:559:34
9:34
+0:25
40K
24.85 mi15:00:573:43:128:599:09
10:42
+1:08
25.2M
25.20 mi15:05:343:47:499:024:37
13:23
+2:41
Finish
26.22 mi15:14:263:56:419:028:52
8:42
-4:41

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

8:12 /mi

Average Pace

9:02 /mi

Slowest Pace

13:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:45

32% of race

Time at Steady Pace

2:13:48

57% of race

Time at Slower Pace

26:08

11% of race

Average Pace: 9:02 /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 mi11:43:3225:478:1825:47
8:18
#16135
10K
6.21 mi12:09:0051:158:1525:28
8:12
#16171
15K
9.32 mi12:34:301:16:458:1425:30
8:12
#16072
20K
12.43 mi13:03:061:45:218:2928:36
9:12
#17415
Half
13.11 mi13:08:531:51:088:295:47
8:29
#17412
25K
15.53 mi13:29:542:12:098:3021:01
8:40
#17360
30K
18.64 mi13:59:132:41:288:4029:19
9:26
#17725
20M
20.00 mi14:11:462:54:018:4212:33
9:14
#17731
21M
21.00 mi14:24:083:06:238:5312:22
12:22
#18398
35K
21.75 mi14:30:473:13:028:536:39
8:53
#18357
23M
23.00 mi14:42:143:24:298:5311:27
9:09
#18265
24M
24.00 mi14:51:483:34:038:559:34
9:34
#18335
40K
24.85 mi15:00:573:43:128:599:09
10:42
#18550
25.2M
25.20 mi15:05:343:47:499:024:37
13:23
#18770
Finish
26.22 mi15:14:263:56:419:028:52
8:42
#18704
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi16135107531075315903(Top 60%)10651(Top 70%)10651(Top 202%)
10K6.21 mi3.10 mi16171-3610771-1810771-1816220(Top 61%)10793(Top 71%)10793(Top 204%)
15K9.32 mi3.11 mi16072+9910725+4610725+4615903(Top 60%)10651(Top 70%)10651(Top 202%)
20K12.43 mi3.11 mi17415-134311229-50411229-50420588(Top 77%)12565(Top 83%)12565(Top 238%)
Half13.11 mi0.68 mi17412+311225+411225+417566(Top 66%)11327(Top 75%)11327(Top 214%)
25K15.53 mi2.42 mi17360+5211185+4011185+4017206(Top 65%)11070(Top 73%)11070(Top 209%)
30K18.64 mi3.11 mi17725-36511316-13111316-13119188(Top 72%)11867(Top 78%)11867(Top 225%)
20M20.00 mi1.36 mi17731-611295+2111295+2117707(Top 67%)11106(Top 73%)11106(Top 210%)
21M21.00 mi1.00 mi18398-66711554-25911554-25923276(Top 87%)13561(Top 89%)13561(Top 257%)
35K21.75 mi0.75 mi18357+4111527+2711527+2717372(Top 65%)10871(Top 72%)10871(Top 206%)
23M23.00 mi1.25 mi18265+9211477+5011477+5016758(Top 63%)10579(Top 70%)10579(Top 200%)
24M24.00 mi1.00 mi18335-7011494-1711494-1719433(Top 73%)11728(Top 77%)11728(Top 222%)
40K24.85 mi0.85 mi18550-21511584-9011584-9021695(Top 81%)12684(Top 84%)12684(Top 240%)
25.2M25.20 mi0.35 mi18770-22011661-7711661-7724392(Top 92%)13991(Top 92%)13991(Top 265%)
Finish26.22 mi1.02 mi18704+6611632+2911632+2916485(Top 62%)10382(Top 68%)10382(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

15903

Males

10651

M18-39

10651

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

16220

Males

10793

M18-39

10793

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

15903

Males

10651

M18-39

10651

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20588

Males

12565

M18-39

12565

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17566

Males

11327

M18-39

11327

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

17206

Males

11070

M18-39

11070

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19188

Males

11867

M18-39

11867

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

17707

Males

11106

M18-39

11106

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

23276

Males

13561

M18-39

13561

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

17372

Males

10871

M18-39

10871

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16758

Males

10579

M18-39

10579

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19433

Males

11728

M18-39

11728

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21695

Males

12684

M18-39

12684

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24392

Males

13991

M18-39

13991

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

16485

Males

10382

M18-39

10382

Passing Analysis

Category:
Athletes Passed
1229
Passed By
3798
Net Change
-2569
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16135
5K → 10K284320-36#16135#16171
10K → 15K245146+99#16171#16072
15K → 20K161359-1343#16072#17415
20K → Half3027+3#17415#17412
Half → 25K14593+52#17412#17360
25K → 30K79444-365#17360#17725
30K → 20M8894-6#17725#17731
20M → 21M5672-667#17731#18398
21M → 35K6423+41#18398#18357
35K → 23M13240+92#18357#18265
23M → 24M34104-70#18265#18335
24M → 40K14229-215#18335#18550
40K → 25.2M5225-220#18550#18770
25.2M → Finish8822+66#18770#18704
TOTALS12293798-2569
📊

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