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BOSTON MARATHON 2023

David Cowles

Bib: 2605•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Division (M18-39)
#0 / 5285
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:47
Rank: #1679
Start → 5K
19:47 | 6:22/mi
10K· 6.21 mi
39:11
Rank: #1592 (+87)
5K → 10K
19:24 | 6:15/mi
15K· 9.32 mi
58:55
Rank: #1675 (-83)
10K → 15K
19:44 | 6:21/mi
20K· 12.43 mi
1:18:39
Rank: #1653 (+22)
15K → 20K
19:44 | 6:21/mi
Half· 13.11 mi
1:22:56
Rank: #1653
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:38:23
Rank: #1621 (+32)
Half → 25K
15:27 | 6:22/mi
30K· 18.64 mi
1:58:30
Rank: #1578 (+43)
25K → 30K
20:07 | 6:28/mi
20M
2:07:30
Rank: #1581 (-3)
30K → 20M
9:00 | 6:37/mi
21M
2:14:40
Rank: #1622 (-41)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:19:40
Rank: #1646 (-24)
21M → 35K
5:00 | 6:41/mi
23M
2:28:02
Rank: #1670 (-24)
35K → 23M
8:22 | 6:41/mi
24M
2:34:45
Rank: #1704 (-34)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:40:51
Rank: #1759 (-55)
24M → 40K
6:06 | 7:08/mi
25.2M
2:43:32
Rank: #1810 (-51)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
2:50:44
Rank: #1897 (-87)
25.2M → Finish
7:12 | 7:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:56
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:27:48
Pace6:42 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5319:476:2219:47
6:22
-
10K
6.21 mi10:40:1739:116:1819:24
6:15
-0:07
15K
9.32 mi11:00:0158:556:1919:44
6:21
+0:06
20K
12.43 mi11:19:451:18:396:2019:44
6:21
0:00
Half
13.11 mi11:24:021:22:566:204:17
6:17
-0:04
25K
15.53 mi11:39:291:38:236:2015:27
6:22
+0:05
30K
18.64 mi11:59:361:58:306:2120:07
6:28
+0:06
20M
20.00 mi12:08:362:07:306:229:00
6:37
+0:09
21M
21.00 mi12:15:462:14:406:257:10
7:10
+0:33
35K
21.75 mi12:20:462:19:406:255:00
6:41
-0:29
23M
23.00 mi12:29:082:28:026:268:22
6:41
0:00
24M
24.00 mi12:35:512:34:456:276:43
6:43
+0:02
40K
24.85 mi12:41:572:40:516:286:06
7:08
+0:25
25.2M
25.20 mi12:44:382:43:326:292:41
7:47
+0:39
Finish
26.22 mi12:51:502:50:446:317:12
7:04
-0:43

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

6:15 /mi

Average Pace

6:31 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:23

58% of race

Time at Steady Pace

49:12

29% of race

Time at Slower Pace

23:09

14% of race

Average Pace: 6:31 /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 mi10:20:5319:476:2219:47
6:22
#1679
10K
6.21 mi10:40:1739:116:1819:24
6:15
#1592
15K
9.32 mi11:00:0158:556:1919:44
6:21
#1675
20K
12.43 mi11:19:451:18:396:2019:44
6:21
#1653
Half
13.11 mi11:24:021:22:566:204:17
6:17
#1653
25K
15.53 mi11:39:291:38:236:2015:27
6:22
#1621
30K
18.64 mi11:59:361:58:306:2120:07
6:28
#1578
20M
20.00 mi12:08:362:07:306:229:00
6:37
#1581
21M
21.00 mi12:15:462:14:406:257:10
7:10
#1622
35K
21.75 mi12:20:462:19:406:255:00
6:41
#1646
23M
23.00 mi12:29:082:28:026:268:22
6:41
#1670
24M
24.00 mi12:35:512:34:456:276:43
6:43
#1704
40K
24.85 mi12:41:572:40:516:286:06
7:08
#1759
25.2M
25.20 mi12:44:382:43:326:292:41
7:47
#1810
Finish
26.22 mi12:51:502:50:446:317:12
7:04
#1897
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1679160016001879(Top 7%)1800(Top 12%)1800(Top 34%)
10K6.21 mi3.10 mi1592+871519+811519+811530(Top 6%)1463(Top 10%)1463(Top 28%)
15K9.32 mi3.11 mi1675-831601-821601-821879(Top 7%)1800(Top 12%)1800(Top 34%)
20K12.43 mi3.11 mi1653+221582+191582+191609(Top 6%)1539(Top 10%)1539(Top 29%)
Half13.11 mi0.68 mi1653158215821713(Top 6%)1643(Top 11%)1643(Top 31%)
25K15.53 mi2.42 mi1621+321551+311551+311617(Top 6%)1547(Top 10%)1547(Top 29%)
30K18.64 mi3.11 mi1578+431509+421509+421484(Top 6%)1420(Top 9%)1420(Top 27%)
20M20.00 mi1.36 mi1581-31510-11510-11951(Top 7%)1861(Top 12%)1861(Top 35%)
21M21.00 mi1.00 mi1622-411551-411551-412894(Top 11%)2711(Top 18%)2711(Top 51%)
35K21.75 mi0.75 mi1646-241573-221573-223408(Top 13%)3160(Top 21%)3160(Top 60%)
23M23.00 mi1.25 mi1670-241597-241597-242137(Top 8%)2017(Top 13%)2017(Top 38%)
24M24.00 mi1.00 mi1704-341629-321629-323161(Top 12%)2927(Top 19%)2927(Top 55%)
40K24.85 mi0.85 mi1759-551681-521681-524498(Top 17%)3980(Top 26%)3980(Top 75%)
25.2M25.20 mi0.35 mi1810-511731-501731-505182(Top 19%)4362(Top 29%)4362(Top 83%)
Finish26.22 mi1.02 mi1897-871814-831814-835571(Top 21%)4625(Top 30%)4625(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1879

Males

1800

M18-39

1800

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1530

Males

1463

M18-39

1463

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1879

Males

1800

M18-39

1800

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1609

Males

1539

M18-39

1539

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1713

Males

1643

M18-39

1643

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1617

Males

1547

M18-39

1547

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1484

Males

1420

M18-39

1420

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1951

Males

1861

M18-39

1861

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2894

Males

2711

M18-39

2711

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3408

Males

3160

M18-39

3160

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2137

Males

2017

M18-39

2017

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3161

Males

2927

M18-39

2927

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4498

Males

3980

M18-39

3980

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5182

Males

4362

M18-39

4362

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5571

Males

4625

M18-39

4625

Passing Analysis

Category:
Athletes Passed
465
Passed By
683
Net Change
-218
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1679
5K → 10K13346+87#1679#1592
10K → 15K28111-83#1592#1675
15K → 20K6038+22#1675#1653
20K → Half12120#1653#1653
Half → 25K5422+32#1653#1621
25K → 30K7633+43#1621#1578
30K → 20M2528-3#1578#1581
20M → 21M1556-41#1581#1622
21M → 35K630-24#1622#1646
35K → 23M2044-24#1646#1670
23M → 24M1246-34#1670#1704
24M → 40K1368-55#1704#1759
40K → 25.2M556-51#1759#1810
25.2M → Finish693-87#1810#1897
TOTALS465683-218
📊

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