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BOSTON MARATHON 2023

Alex Cowin

Bib: 1703•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 11%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M40-44)
#0 / 2241
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:09
Rank: #2193
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
39:44
Rank: #1957 (+236)
5K → 10K
19:35 | 6:18/mi
15K· 9.32 mi
59:33
Rank: #1955 (+2)
10K → 15K
19:49 | 6:23/mi
20K· 12.43 mi
1:19:32
Rank: #1933 (+22)
15K → 20K
19:59 | 6:26/mi
Half· 13.11 mi
1:23:52
Rank: #1933
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:39:30
Rank: #1911 (+22)
Half → 25K
15:38 | 6:27/mi
30K· 18.64 mi
1:59:46
Rank: #1849 (+62)
25K → 30K
20:16 | 6:31/mi
20M
2:08:50
Rank: #1865 (-16)
30K → 20M
9:04 | 6:40/mi
21M
2:15:42
Rank: #1829 (+36)
20M → 21M
6:52 | 6:52/mi
35K· 21.75 mi
2:20:30
Rank: #1822 (+7)
21M → 35K
4:48 | 6:25/mi
23M
2:28:53
Rank: #1822
35K → 23M
8:23 | 6:42/mi
24M
2:35:23
Rank: #1809 (+13)
23M → 24M
6:30 | 6:30/mi
40K· 24.85 mi
2:40:58
Rank: #1788 (+21)
24M → 40K
5:35 | 6:32/mi
25.2M
2:43:22
Rank: #1772 (+16)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:49:41
Rank: #1723 (+49)
25.2M → Finish
6:19 | 6:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:52
Pace6:24 /mi
2nd Half
Distance13.11 mi
Time1:25:49
Pace6:33 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5220:096:2920:09
6:29
-
10K
6.21 mi10:40:2739:446:2419:35
6:18
-0:11
15K
9.32 mi11:00:1659:336:2319:49
6:23
+0:05
20K
12.43 mi11:20:151:19:326:2419:59
6:26
+0:03
Half
13.11 mi11:24:351:23:526:244:20
6:21
-0:05
25K
15.53 mi11:40:131:39:306:2415:38
6:27
+0:06
30K
18.64 mi12:00:291:59:466:2520:16
6:31
+0:04
20M
20.00 mi12:09:332:08:506:269:04
6:40
+0:09
21M
21.00 mi12:16:252:15:426:286:52
6:52
+0:12
35K
21.75 mi12:21:132:20:306:284:48
6:25
-0:27
23M
23.00 mi12:29:362:28:536:288:23
6:42
+0:17
24M
24.00 mi12:36:062:35:236:286:30
6:30
-0:12
40K
24.85 mi12:41:412:40:586:295:35
6:32
+0:02
25.2M
25.20 mi12:44:052:43:226:292:24
6:58
+0:26
Finish
26.22 mi12:50:242:49:416:296:19
6:12
-0:46

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

6:12 /mi

Average Pace

6:29 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:25

95% of race

Time at Steady Pace

9:16

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:20:5220:096:2920:09
6:29
#2193
10K
6.21 mi10:40:2739:446:2419:35
6:18
#1957
15K
9.32 mi11:00:1659:336:2319:49
6:23
#1955
20K
12.43 mi11:20:151:19:326:2419:59
6:26
#1933
Half
13.11 mi11:24:351:23:526:244:20
6:21
#1933
25K
15.53 mi11:40:131:39:306:2415:38
6:27
#1911
30K
18.64 mi12:00:291:59:466:2520:16
6:31
#1849
20M
20.00 mi12:09:332:08:506:269:04
6:40
#1865
21M
21.00 mi12:16:252:15:426:286:52
6:52
#1829
35K
21.75 mi12:21:132:20:306:284:48
6:25
#1822
23M
23.00 mi12:29:362:28:536:288:23
6:42
#1822
24M
24.00 mi12:36:062:35:236:286:30
6:30
#1809
40K
24.85 mi12:41:412:40:586:295:35
6:32
#1788
25.2M
25.20 mi12:44:052:43:226:292:24
6:58
#1772
Finish
26.22 mi12:50:242:49:416:296:19
6:12
#1723
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2193209220921986(Top 7%)1901(Top 13%)1901(Top 85%)
10K6.21 mi3.10 mi1957+2361874+2181874+2181789(Top 7%)1711(Top 11%)1711(Top 76%)
15K9.32 mi3.11 mi1955+21871+31871+31986(Top 7%)1901(Top 13%)1901(Top 85%)
20K12.43 mi3.11 mi1933+221852+191852+191935(Top 7%)1857(Top 12%)1857(Top 83%)
Half13.11 mi0.68 mi19331851+11851+11978(Top 7%)1901(Top 13%)1901(Top 85%)
25K15.53 mi2.42 mi1911+221829+221829+221937(Top 7%)1854(Top 12%)1854(Top 83%)
30K18.64 mi3.11 mi1849+621770+591770+591653(Top 6%)1580(Top 10%)1580(Top 71%)
20M20.00 mi1.36 mi1865-161784-141784-142143(Top 8%)2038(Top 13%)2038(Top 91%)
21M21.00 mi1.00 mi1829+361751+331751+331639(Top 6%)1560(Top 10%)1560(Top 70%)
35K21.75 mi0.75 mi1822+71743+81743+82009(Top 8%)1907(Top 13%)1907(Top 85%)
23M23.00 mi1.25 mi1822174317432150(Top 8%)2030(Top 13%)2030(Top 91%)
24M24.00 mi1.00 mi1809+131730+131730+132078(Top 8%)1948(Top 13%)1948(Top 87%)
40K24.85 mi0.85 mi1788+211710+201710+201646(Top 6%)1549(Top 10%)1549(Top 69%)
25.2M25.20 mi0.35 mi1772+161693+171693+171614(Top 6%)1520(Top 10%)1520(Top 68%)
Finish26.22 mi1.02 mi1723+491647+461647+461273(Top 5%)1206(Top 8%)1206(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1986

Males

1901

M40-44

1901

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1789

Males

1711

M40-44

1711

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1986

Males

1901

M40-44

1901

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1935

Males

1857

M40-44

1857

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1978

Males

1901

M40-44

1901

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1937

Males

1854

M40-44

1854

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1653

Males

1580

M40-44

1580

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2143

Males

2038

M40-44

2038

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1639

Males

1560

M40-44

1560

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2009

Males

1907

M40-44

1907

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2150

Males

2030

M40-44

2030

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2078

Males

1948

M40-44

1948

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1646

Males

1549

M40-44

1549

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1614

Males

1520

M40-44

1520

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1273

Males

1206

M40-44

1206

Passing Analysis

Category:
Athletes Passed
825
Passed By
355
Net Change
+470
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2193
5K → 10K26125+236#2193#1957
10K → 15K6664+2#1957#1955
15K → 20K6240+22#1955#1933
20K → Half13130#1933#1933
Half → 25K5129+22#1933#1911
25K → 30K8422+62#1911#1849
30K → 20M2743-16#1849#1865
20M → 21M5115+36#1865#1829
21M → 35K2114+7#1829#1822
35K → 23M39390#1822#1822
23M → 24M3219+13#1822#1809
24M → 40K3514+21#1809#1788
40K → 25.2M248+16#1788#1772
25.2M → Finish5910+49#1772#1723
TOTALS825355+470
📊

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