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BOSTON MARATHON 2023

Ian Rowley

Bib: 4352•M

WI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 45%
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
22:50
Rank: #8439
Start → 5K
22:50 | 7:21/mi
10K· 6.21 mi
45:16
Rank: #8336 (+103)
5K → 10K
22:26 | 7:13/mi
15K· 9.32 mi
1:07:50
Rank: #8284 (+52)
10K → 15K
22:34 | 7:16/mi
20K· 12.43 mi
1:30:46
Rank: #8272 (+12)
15K → 20K
22:56 | 7:23/mi
Half· 13.11 mi
1:35:40
Rank: #8230 (+42)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:53:33
Rank: #8142 (+88)
Half → 25K
17:53 | 7:23/mi
30K· 18.64 mi
2:17:13
Rank: #8092 (+50)
25K → 30K
23:40 | 7:37/mi
20M
2:27:45
Rank: #8074 (+18)
30K → 20M
10:32 | 7:45/mi
21M
2:35:53
Rank: #8048 (+26)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:41:30
Rank: #8061 (-13)
21M → 35K
5:37 | 7:30/mi
23M
2:51:22
Rank: #8089 (-28)
35K → 23M
9:52 | 7:53/mi
24M
2:59:05
Rank: #8099 (-10)
23M → 24M
7:43 | 7:43/mi
40K· 24.85 mi
3:05:48
Rank: #8125 (-26)
24M → 40K
6:43 | 7:51/mi
25.2M
3:08:41
Rank: #8122 (+3)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:16:26
Rank: #8142 (-20)
25.2M → Finish
7:45 | 7:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:40
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:40:46
Pace7:41 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:1922:507:2122:50
7:21
-
10K
6.21 mi10:47:4545:167:1722:26
7:13
-0:08
15K
9.32 mi11:10:191:07:507:1722:34
7:16
+0:03
20K
12.43 mi11:33:151:30:467:1822:56
7:23
+0:07
Half
13.11 mi11:38:091:35:407:184:54
7:11
-0:12
25K
15.53 mi11:56:021:53:337:1917:53
7:23
+0:12
30K
18.64 mi12:19:422:17:137:2223:40
7:37
+0:14
20M
20.00 mi12:30:142:27:457:2310:32
7:45
+0:08
21M
21.00 mi12:38:222:35:537:258:08
8:08
+0:23
35K
21.75 mi12:43:592:41:307:265:37
7:30
-0:38
23M
23.00 mi12:53:512:51:227:279:52
7:53
+0:23
24M
24.00 mi13:01:342:59:057:287:43
7:43
-0:10
40K
24.85 mi13:08:173:05:487:296:43
7:51
+0:08
25.2M
25.20 mi13:11:103:08:417:292:53
8:22
+0:31
Finish
26.22 mi13:18:553:16:267:307:45
7:36
-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

7:11 /mi

Average Pace

7:30 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:25

94% of race

Time at Steady Pace

11:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi10:25:1922:507:2122:50
7:21
#8439
10K
6.21 mi10:47:4545:167:1722:26
7:13
#8336
15K
9.32 mi11:10:191:07:507:1722:34
7:16
#8284
20K
12.43 mi11:33:151:30:467:1822:56
7:23
#8272
Half
13.11 mi11:38:091:35:407:184:54
7:11
#8230
25K
15.53 mi11:56:021:53:337:1917:53
7:23
#8142
30K
18.64 mi12:19:422:17:137:2223:40
7:37
#8092
20M
20.00 mi12:30:142:27:457:2310:32
7:45
#8074
21M
21.00 mi12:38:222:35:537:258:08
8:08
#8048
35K
21.75 mi12:43:592:41:307:265:37
7:30
#8061
23M
23.00 mi12:53:512:51:227:279:52
7:53
#8089
24M
24.00 mi13:01:342:59:057:287:43
7:43
#8099
40K
24.85 mi13:08:173:05:487:296:43
7:51
#8125
25.2M
25.20 mi13:11:103:08:417:292:53
8:22
#8122
Finish
26.22 mi13:18:553:16:267:307:45
7:36
#8142
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8439725872588259(Top 31%)7081(Top 47%)7081(Top 134%)
10K6.21 mi3.10 mi8336+1037170+887170+888246(Top 31%)7114(Top 47%)7114(Top 135%)
15K9.32 mi3.11 mi8284+527137+337137+338259(Top 31%)7081(Top 47%)7081(Top 134%)
20K12.43 mi3.11 mi8272+127117+207117+208364(Top 31%)7107(Top 47%)7107(Top 134%)
Half13.11 mi0.68 mi8230+427085+327085+327715(Top 29%)6722(Top 44%)6722(Top 127%)
25K15.53 mi2.42 mi8142+886999+866999+867803(Top 29%)6673(Top 44%)6673(Top 126%)
30K18.64 mi3.11 mi8092+506930+696930+698058(Top 30%)6718(Top 44%)6718(Top 127%)
20M20.00 mi1.36 mi8074+186904+266904+268495(Top 32%)6887(Top 45%)6887(Top 130%)
21M21.00 mi1.00 mi8048+266871+336871+338179(Top 31%)6577(Top 43%)6577(Top 124%)
35K21.75 mi0.75 mi8061-136864+76864+78559(Top 32%)6833(Top 45%)6833(Top 129%)
23M23.00 mi1.25 mi8089-286861+36861+38923(Top 34%)6923(Top 46%)6923(Top 131%)
24M24.00 mi1.00 mi8099-106850+116850+119164(Top 34%)6967(Top 46%)6967(Top 132%)
40K24.85 mi0.85 mi8125-266843+76843+78990(Top 34%)6800(Top 45%)6800(Top 129%)
25.2M25.20 mi0.35 mi8122+36835+86835+88611(Top 32%)6512(Top 43%)6512(Top 123%)
Finish26.22 mi1.02 mi8142-206829+66829+69279(Top 35%)6899(Top 45%)6899(Top 131%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8259

Males

7081

M18-39

7081

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8246

Males

7114

M18-39

7114

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8259

Males

7081

M18-39

7081

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8364

Males

7107

M18-39

7107

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

7715

Males

6722

M18-39

6722

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7803

Males

6673

M18-39

6673

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8058

Males

6718

M18-39

6718

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8495

Males

6887

M18-39

6887

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8179

Males

6577

M18-39

6577

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8559

Males

6833

M18-39

6833

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

8923

Males

6923

M18-39

6923

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9164

Males

6967

M18-39

6967

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8990

Males

6800

M18-39

6800

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8611

Males

6512

M18-39

6512

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9279

Males

6899

M18-39

6899

Passing Analysis

Category:
Athletes Passed
1405
Passed By
1108
Net Change
+297
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8439
5K → 10K280177+103#8439#8336
10K → 15K169117+52#8336#8284
15K → 20K124112+12#8284#8272
20K → Half486+42#8272#8230
Half → 25K14557+88#8230#8142
25K → 30K153103+50#8142#8092
30K → 20M9173+18#8092#8074
20M → 21M8155+26#8074#8048
21M → 35K3952-13#8048#8061
35K → 23M73101-28#8061#8089
23M → 24M6070-10#8089#8099
24M → 40K5581-26#8099#8125
40K → 25.2M3229+3#8125#8122
25.2M → Finish5575-20#8122#8142
TOTALS14051108+297
📊

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