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BOSTON MARATHON 2023

Robert Jackson

Bib: 1241•M

IN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 5%
Division (M18-39)
#0 / 5285
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:09
Rank: #1050
Start → 5K
19:09 | 6:10/mi
10K· 6.21 mi
37:51
Rank: #948 (+102)
5K → 10K
18:42 | 6:01/mi
15K· 9.32 mi
56:37
Rank: #878 (+70)
10K → 15K
18:46 | 6:02/mi
20K· 12.43 mi
1:15:40
Rank: #874 (+4)
15K → 20K
19:03 | 6:08/mi
Half· 13.11 mi
1:19:46
Rank: #867 (+7)
20K → Half
4:06 | 6:01/mi
25K· 15.53 mi
1:34:36
Rank: #833 (+34)
Half → 25K
14:50 | 6:07/mi
30K· 18.64 mi
1:54:17
Rank: #848 (-15)
25K → 30K
19:41 | 6:20/mi
20M
2:02:48
Rank: #831 (+17)
30K → 20M
8:31 | 6:16/mi
21M
2:09:35
Rank: #837 (-6)
20M → 21M
6:47 | 6:47/mi
35K· 21.75 mi
2:14:07
Rank: #835 (+2)
21M → 35K
4:32 | 6:04/mi
23M
2:22:09
Rank: #833 (+2)
35K → 23M
8:02 | 6:25/mi
24M
2:28:26
Rank: #834 (-1)
23M → 24M
6:17 | 6:17/mi
40K· 24.85 mi
2:33:57
Rank: #834
24M → 40K
5:31 | 6:27/mi
25.2M
2:36:23
Rank: #835 (-1)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:42:55
Rank: #851 (-16)
25.2M → Finish
6:32 | 6:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:46
Pace6:05 /mi
2nd Half
Distance13.11 mi
Time1:23:09
Pace6:21 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3219:096:1019:09
6:10
-
10K
6.21 mi10:38:1437:516:0518:42
6:01
-0:09
15K
9.32 mi10:57:0056:376:0418:46
6:02
+0:01
20K
12.43 mi11:16:031:15:406:0519:03
6:08
+0:06
Half
13.11 mi11:20:091:19:466:054:06
6:01
-0:07
25K
15.53 mi11:34:591:34:366:0514:50
6:07
+0:06
30K
18.64 mi11:54:401:54:176:0819:41
6:20
+0:13
20M
20.00 mi12:03:112:02:486:088:31
6:16
-0:04
21M
21.00 mi12:09:582:09:356:106:47
6:47
+0:31
35K
21.75 mi12:14:302:14:076:104:32
6:04
-0:43
23M
23.00 mi12:22:322:22:096:118:02
6:25
+0:21
24M
24.00 mi12:28:492:28:266:116:17
6:17
-0:08
40K
24.85 mi12:34:202:33:576:125:31
6:27
+0:10
25.2M
25.20 mi12:36:462:36:236:122:26
7:03
+0:36
Finish
26.22 mi12:43:182:42:556:136:32
6:25
-0:38

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

6:01 /mi

Average Pace

6:13 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:42

94% of race

Time at Steady Pace

9:13

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:13 /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 mi10:19:3219:096:1019:09
6:10
#1050
10K
6.21 mi10:38:1437:516:0518:42
6:01
#948
15K
9.32 mi10:57:0056:376:0418:46
6:02
#878
20K
12.43 mi11:16:031:15:406:0519:03
6:08
#874
Half
13.11 mi11:20:091:19:466:054:06
6:01
#867
25K
15.53 mi11:34:591:34:366:0514:50
6:07
#833
30K
18.64 mi11:54:401:54:176:0819:41
6:20
#848
20M
20.00 mi12:03:112:02:486:088:31
6:16
#831
21M
21.00 mi12:09:582:09:356:106:47
6:47
#837
35K
21.75 mi12:14:302:14:076:104:32
6:04
#835
23M
23.00 mi12:22:322:22:096:118:02
6:25
#833
24M
24.00 mi12:28:492:28:266:116:17
6:17
#834
40K
24.85 mi12:34:202:33:576:125:31
6:27
#834
25.2M
25.20 mi12:36:462:36:236:122:26
7:03
#835
Finish
26.22 mi12:43:182:42:556:136:32
6:25
#851
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1050992992802(Top 3%)756(Top 5%)756(Top 14%)
10K6.21 mi3.10 mi948+102895+97895+97850(Top 3%)803(Top 5%)803(Top 15%)
15K9.32 mi3.11 mi878+70828+67828+67802(Top 3%)756(Top 5%)756(Top 14%)
20K12.43 mi3.11 mi874+4826+2826+2864(Top 3%)819(Top 5%)819(Top 15%)
Half13.11 mi0.68 mi867+7820+6820+6789(Top 3%)748(Top 5%)748(Top 14%)
25K15.53 mi2.42 mi833+34787+33787+33792(Top 3%)750(Top 5%)750(Top 14%)
30K18.64 mi3.11 mi848-15804-17804-171008(Top 4%)957(Top 6%)957(Top 18%)
20M20.00 mi1.36 mi831+17786+18786+18794(Top 3%)754(Top 5%)754(Top 14%)
21M21.00 mi1.00 mi837-6792-6792-61338(Top 5%)1275(Top 8%)1275(Top 24%)
35K21.75 mi0.75 mi835+2790+2790+2813(Top 3%)770(Top 5%)770(Top 15%)
23M23.00 mi1.25 mi833+2788+2788+21137(Top 4%)1073(Top 7%)1073(Top 20%)
24M24.00 mi1.00 mi834-17887881291(Top 5%)1221(Top 8%)1221(Top 23%)
40K24.85 mi0.85 mi8347887881358(Top 5%)1281(Top 8%)1281(Top 24%)
25.2M25.20 mi0.35 mi835-1790-2790-21864(Top 7%)1747(Top 12%)1747(Top 33%)
Finish26.22 mi1.02 mi851-16805-15805-152041(Top 8%)1896(Top 12%)1896(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

802

Males

756

M18-39

756

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

850

Males

803

M18-39

803

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

802

Males

756

M18-39

756

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

864

Males

819

M18-39

819

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

789

Males

748

M18-39

748

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

792

Males

750

M18-39

750

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1008

Males

957

M18-39

957

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

794

Males

754

M18-39

754

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1338

Males

1275

M18-39

1275

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

813

Males

770

M18-39

770

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1137

Males

1073

M18-39

1073

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1291

Males

1221

M18-39

1221

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1358

Males

1281

M18-39

1281

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1864

Males

1747

M18-39

1747

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2041

Males

1896

M18-39

1896

Passing Analysis

Category:
Athletes Passed
397
Passed By
198
Net Change
+199
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1050
5K → 10K11412+102#1050#948
10K → 15K744+70#948#878
15K → 20K2925+4#878#874
20K → Half125+7#874#867
Half → 25K439+34#867#833
25K → 30K2237-15#833#848
30K → 20M236+17#848#831
20M → 21M1319-6#831#837
21M → 35K86+2#837#835
35K → 23M1917+2#835#833
23M → 24M1112-1#833#834
24M → 40K13130#834#834
40K → 25.2M67-1#834#835
25.2M → Finish1026-16#835#851
TOTALS397198+199
📊

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