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BOSTON MARATHON 2023

Stephen Sewell

Bib: 5348•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Division (M18-39)
#0 / 5285
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:45
Rank: #1631
Start → 5K
19:45 | 6:21/mi
10K· 6.21 mi
39:27
Rank: #1778 (-147)
5K → 10K
19:42 | 6:20/mi
15K· 9.32 mi
59:12
Rank: #1795 (-17)
10K → 15K
19:45 | 6:21/mi
20K· 12.43 mi
1:18:59
Rank: #1741 (+54)
15K → 20K
19:47 | 6:22/mi
Half· 13.11 mi
1:23:17
Rank: #1745 (-4)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:38:43
Rank: #1723 (+22)
Half → 25K
15:26 | 6:22/mi
30K· 18.64 mi
1:58:35
Rank: #1600 (+123)
25K → 30K
19:52 | 6:24/mi
20M
2:07:14
Rank: #1526 (+74)
30K → 20M
8:39 | 6:22/mi
21M
2:13:56
Rank: #1483 (+43)
20M → 21M
6:42 | 6:42/mi
35K· 21.75 mi
2:18:32
Rank: #1468 (+15)
21M → 35K
4:36 | 6:09/mi
23M
2:26:30
Rank: #1407 (+61)
35K → 23M
7:58 | 6:22/mi
24M
2:32:42
Rank: #1365 (+42)
23M → 24M
6:12 | 6:12/mi
40K· 24.85 mi
2:38:04
Rank: #1325 (+40)
24M → 40K
5:22 | 6:17/mi
25.2M
2:40:27
Rank: #1317 (+8)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:46:50
Rank: #1298 (+19)
25.2M → Finish
6:23 | 6:16/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:23:17
Pace6:21 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:23:33
Pace6:22 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4219:456:2119:45
6:21
-
10K
6.21 mi10:42:2439:276:2119:42
6:20
-0:01
15K
9.32 mi11:02:0959:126:2119:45
6:21
+0:01
20K
12.43 mi11:21:561:18:596:2119:47
6:22
+0:01
Half
13.11 mi11:26:141:23:176:214:18
6:18
-0:04
25K
15.53 mi11:41:401:38:436:2115:26
6:22
+0:04
30K
18.64 mi12:01:321:58:356:2219:52
6:24
+0:02
20M
20.00 mi12:10:112:07:146:228:39
6:22
-0:02
21M
21.00 mi12:16:532:13:566:236:42
6:42
+0:20
35K
21.75 mi12:21:292:18:326:224:36
6:09
-0:33
23M
23.00 mi12:29:272:26:306:227:58
6:22
+0:13
24M
24.00 mi12:35:392:32:426:226:12
6:12
-0:10
40K
24.85 mi12:41:012:38:046:225:22
6:17
+0:05
25.2M
25.20 mi12:43:242:40:276:222:23
6:55
+0:38
Finish
26.22 mi12:49:472:46:506:226:23
6:16
-0:39

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

6:09 /mi

Average Pace

6:22 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:27

99% of race

Time at Steady Pace

2:23

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:22 /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 mi10:22:4219:456:2119:45
6:21
#1631
10K
6.21 mi10:42:2439:276:2119:42
6:20
#1778
15K
9.32 mi11:02:0959:126:2119:45
6:21
#1795
20K
12.43 mi11:21:561:18:596:2119:47
6:22
#1741
Half
13.11 mi11:26:141:23:176:214:18
6:18
#1745
25K
15.53 mi11:41:401:38:436:2115:26
6:22
#1723
30K
18.64 mi12:01:321:58:356:2219:52
6:24
#1600
20M
20.00 mi12:10:112:07:146:228:39
6:22
#1526
21M
21.00 mi12:16:532:13:566:236:42
6:42
#1483
35K
21.75 mi12:21:292:18:326:224:36
6:09
#1468
23M
23.00 mi12:29:272:26:306:227:58
6:22
#1407
24M
24.00 mi12:35:392:32:426:226:12
6:12
#1365
40K
24.85 mi12:41:012:38:046:225:22
6:17
#1325
25.2M
25.20 mi12:43:242:40:276:222:23
6:55
#1317
Finish
26.22 mi12:49:472:46:506:226:23
6:16
#1298
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1631155415541890(Top 7%)1810(Top 12%)1810(Top 34%)
10K6.21 mi3.10 mi1778-1471700-1461700-1461935(Top 7%)1854(Top 12%)1854(Top 35%)
15K9.32 mi3.11 mi1795-171716-161716-161890(Top 7%)1810(Top 12%)1810(Top 34%)
20K12.43 mi3.11 mi1741+541665+511665+511663(Top 6%)1592(Top 10%)1592(Top 30%)
Half13.11 mi0.68 mi1745-41669-41669-41756(Top 7%)1685(Top 11%)1685(Top 32%)
25K15.53 mi2.42 mi1723+221649+201649+201574(Top 6%)1508(Top 10%)1508(Top 29%)
30K18.64 mi3.11 mi1600+1231531+1181531+1181194(Top 4%)1138(Top 7%)1138(Top 22%)
20M20.00 mi1.36 mi1526+741458+731458+731041(Top 4%)997(Top 7%)997(Top 19%)
21M21.00 mi1.00 mi1483+431418+401418+401099(Top 4%)1045(Top 7%)1045(Top 20%)
35K21.75 mi0.75 mi1468+151402+161402+161091(Top 4%)1039(Top 7%)1039(Top 20%)
23M23.00 mi1.25 mi1407+611343+591343+59995(Top 4%)945(Top 6%)945(Top 18%)
24M24.00 mi1.00 mi1365+421301+421301+421030(Top 4%)976(Top 6%)976(Top 18%)
40K24.85 mi0.85 mi1325+401263+381263+38839(Top 3%)795(Top 5%)795(Top 15%)
25.2M25.20 mi0.35 mi1317+81255+81255+81443(Top 5%)1360(Top 9%)1360(Top 26%)
Finish26.22 mi1.02 mi1298+191237+181237+181480(Top 6%)1399(Top 9%)1399(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1890

Males

1810

M18-39

1810

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1935

Males

1854

M18-39

1854

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1890

Males

1810

M18-39

1810

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1663

Males

1592

M18-39

1592

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1756

Males

1685

M18-39

1685

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1574

Males

1508

M18-39

1508

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1194

Males

1138

M18-39

1138

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1041

Males

997

M18-39

997

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1099

Males

1045

M18-39

1045

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1091

Males

1039

M18-39

1039

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

995

Males

945

M18-39

945

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1030

Males

976

M18-39

976

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

839

Males

795

M18-39

795

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1443

Males

1360

M18-39

1360

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1480

Males

1399

M18-39

1399

Passing Analysis

Category:
Athletes Passed
691
Passed By
358
Net Change
+333
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1631
5K → 10K43190-147#1631#1778
10K → 15K4865-17#1778#1795
15K → 20K7117+54#1795#1741
20K → Half1115-4#1741#1745
Half → 25K4119+22#1745#1723
25K → 30K1307+123#1723#1600
30K → 20M773+74#1600#1526
20M → 21M496+43#1526#1483
21M → 35K183+15#1483#1468
35K → 23M698+61#1468#1407
23M → 24M453+42#1407#1365
24M → 40K433+40#1365#1325
40K → 25.2M135+8#1325#1317
25.2M → Finish3314+19#1317#1298
TOTALS691358+333
📊

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