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BOSTON MARATHON 2023

Robert Stow

Bib: 27693•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
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
24:00
Rank: #11666
Start → 5K
24:00 | 7:43/mi
10K· 6.21 mi
47:39
Rank: #11502 (+164)
5K → 10K
23:39 | 7:37/mi
15K· 9.32 mi
1:11:36
Rank: #11623 (-121)
10K → 15K
23:57 | 7:43/mi
20K· 12.43 mi
1:35:30
Rank: #11378 (+245)
15K → 20K
23:54 | 7:42/mi
Half· 13.11 mi
1:40:37
Rank: #11321 (+57)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:59:39
Rank: #11317 (+4)
Half → 25K
19:02 | 7:51/mi
30K· 18.64 mi
2:24:49
Rank: #11321 (-4)
25K → 30K
25:10 | 8:06/mi
20M
2:35:52
Rank: #11302 (+19)
30K → 20M
11:03 | 8:08/mi
21M
2:44:09
Rank: #11126 (+176)
20M → 21M
8:17 | 8:17/mi
35K· 21.75 mi
2:49:50
Rank: #11063 (+63)
21M → 35K
5:41 | 7:36/mi
23M
2:59:59
Rank: #10989 (+74)
35K → 23M
10:09 | 8:06/mi
24M
3:07:47
Rank: #10921 (+68)
23M → 24M
7:48 | 7:48/mi
40K· 24.85 mi
3:14:31
Rank: #10838 (+83)
24M → 40K
6:44 | 7:53/mi
25.2M
3:17:22
Rank: #10776 (+62)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:24:51
Rank: #10597 (+179)
25.2M → Finish
7:29 | 7:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:37
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:44:14
Pace7:57 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:4024:007:4324:00
7:43
-
10K
6.21 mi12:05:1947:397:4023:39
7:37
-0:06
15K
9.32 mi12:29:161:11:367:4123:57
7:43
+0:06
20K
12.43 mi12:53:101:35:307:4123:54
7:42
-0:01
Half
13.11 mi12:58:171:40:377:405:07
7:30
-0:12
25K
15.53 mi13:17:191:59:397:4219:02
7:51
+0:21
30K
18.64 mi13:42:292:24:497:4625:10
8:06
+0:15
20M
20.00 mi13:53:322:35:527:4811:03
8:08
+0:02
21M
21.00 mi14:01:492:44:097:498:17
8:17
+0:09
35K
21.75 mi14:07:302:49:507:495:41
7:36
-0:41
23M
23.00 mi14:17:392:59:597:5010:09
8:06
+0:30
24M
24.00 mi14:25:273:07:477:497:48
7:48
-0:18
40K
24.85 mi14:32:113:14:317:506:44
7:53
+0:05
25.2M
25.20 mi14:35:023:17:227:502:51
8:16
+0:23
Finish
26.22 mi14:42:313:24:517:497:29
7:21
-0:55

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

7:21 /mi

Average Pace

7:49 /mi

Slowest Pace

8:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:21

72% of race

Time at Steady Pace

57:30

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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 mi11:41:4024:007:4324:00
7:43
#11666
10K
6.21 mi12:05:1947:397:4023:39
7:37
#11502
15K
9.32 mi12:29:161:11:367:4123:57
7:43
#11623
20K
12.43 mi12:53:101:35:307:4123:54
7:42
#11378
Half
13.11 mi12:58:171:40:377:405:07
7:30
#11321
25K
15.53 mi13:17:191:59:397:4219:02
7:51
#11317
30K
18.64 mi13:42:292:24:497:4625:10
8:06
#11321
20M
20.00 mi13:53:322:35:527:4811:03
8:08
#11302
21M
21.00 mi14:01:492:44:097:498:17
8:17
#11126
35K
21.75 mi14:07:302:49:507:495:41
7:36
#11063
23M
23.00 mi14:17:392:59:597:5010:09
8:06
#10989
24M
24.00 mi14:25:273:07:477:497:48
7:48
#10921
40K
24.85 mi14:32:113:14:317:506:44
7:53
#10838
25.2M
25.20 mi14:35:023:17:227:502:51
8:16
#10776
Finish
26.22 mi14:42:313:24:517:497:29
7:21
#10597
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi116668972897211898(Top 45%)9031(Top 60%)9031(Top 171%)
10K6.21 mi3.10 mi11502+1648880+928880+9211425(Top 43%)8841(Top 58%)8841(Top 167%)
15K9.32 mi3.11 mi11623-1218928-488928-4811898(Top 45%)9031(Top 60%)9031(Top 171%)
20K12.43 mi3.11 mi11378+2458820+1088820+10810846(Top 41%)8497(Top 56%)8497(Top 161%)
Half13.11 mi0.68 mi11321+578790+308790+3010207(Top 38%)8219(Top 54%)8219(Top 156%)
25K15.53 mi2.42 mi11317+48756+348756+3411491(Top 43%)8706(Top 57%)8706(Top 165%)
30K18.64 mi3.11 mi11321-48704+528704+5211627(Top 44%)8632(Top 57%)8632(Top 163%)
20M20.00 mi1.36 mi11302+198683+218683+2111214(Top 42%)8362(Top 55%)8362(Top 158%)
21M21.00 mi1.00 mi11126+1768588+958588+959132(Top 34%)7147(Top 47%)7147(Top 135%)
35K21.75 mi0.75 mi11063+638548+408548+409246(Top 35%)7223(Top 48%)7223(Top 137%)
23M23.00 mi1.25 mi10989+748483+658483+6510496(Top 39%)7718(Top 51%)7718(Top 146%)
24M24.00 mi1.00 mi10921+688420+638420+639776(Top 37%)7282(Top 48%)7282(Top 138%)
40K24.85 mi0.85 mi10838+838351+698351+699154(Top 34%)6900(Top 45%)6900(Top 131%)
25.2M25.20 mi0.35 mi10776+628308+438308+438076(Top 30%)6236(Top 41%)6236(Top 118%)
Finish26.22 mi1.02 mi10597+1798191+1178191+1177406(Top 28%)5816(Top 38%)5816(Top 110%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

11898

Males

9031

M18-39

9031

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

11425

Males

8841

M18-39

8841

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

11898

Males

9031

M18-39

9031

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10846

Males

8497

M18-39

8497

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10207

Males

8219

M18-39

8219

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11491

Males

8706

M18-39

8706

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11627

Males

8632

M18-39

8632

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11214

Males

8362

M18-39

8362

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9132

Males

7147

M18-39

7147

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

9246

Males

7223

M18-39

7223

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10496

Males

7718

M18-39

7718

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9776

Males

7282

M18-39

7282

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9154

Males

6900

M18-39

6900

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8076

Males

6236

M18-39

6236

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7406

Males

5816

M18-39

5816

Passing Analysis

Category:
Athletes Passed
2160
Passed By
1091
Net Change
+1069
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11666
5K → 10K384220+164#11666#11502
10K → 15K137258-121#11502#11623
15K → 20K30156+245#11623#11378
20K → Half658+57#11378#11321
Half → 25K119115+4#11321#11317
25K → 30K187191-4#11317#11321
30K → 20M10586+19#11321#11302
20M → 21M19115+176#11302#11126
21M → 35K7916+63#11126#11063
35K → 23M12753+74#11063#10989
23M → 24M10436+68#10989#10921
24M → 40K10421+83#10921#10838
40K → 25.2M686+62#10838#10776
25.2M → Finish18910+179#10776#10597
TOTALS21601091+1069
📊

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