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BOSTON MARATHON 2023

Justin Ling

Bib: 1097•M

CA

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 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:04
Rank: #976
Start → 5K
6:08/mi
19:04 split
10K· 6.21 mi
37:49
Rank: #934 (+42)
5K → 10K
6:02/mi
18:45 split
15K· 9.32 mi
56:45
Rank: #930 (+4)
10K → 15K
6:06/mi
18:56 split
20K· 12.43 mi
1:15:49
Rank: #914 (+16)
15K → 20K
6:08/mi
19:04 split
Half· 13.11 mi
1:19:56
Rank: #902 (+12)
20K → Half
6:02/mi
4:07 split
25K· 15.53 mi
1:34:44
Rank: #867 (+35)
Half → 25K
6:06/mi
14:48 split
30K· 18.64 mi
1:54:30
Rank: #875 (-8)
25K → 30K
6:22/mi
19:46 split
20M
2:03:02
Rank: #859 (+16)
30K → 20M
6:17/mi
8:32 split
21M
2:09:37
Rank: #844 (+15)
20M → 21M
6:35/mi
6:35 split
35K· 21.75 mi
2:14:12
Rank: #846 (-2)
21M → 35K
6:08/mi
4:35 split
23M
2:22:05
Rank: #822 (+24)
35K → 23M
6:18/mi
7:53 split
24M
2:28:12
Rank: #810 (+12)
23M → 24M
6:07/mi
6:07 split
40K· 24.85 mi
2:33:26
Rank: #784 (+26)
24M → 40K
6:07/mi
5:14 split
25.2M
2:35:39
Rank: #771 (+13)
40K → 25.2M
6:26/mi
2:13 split
Finish· 26.22 mi
2:41:35
Rank: #735 (+36)
25.2M → Finish
5:49/mi
5:56 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:56
Pace6:06 /mi
2nd Half
Distance13.11 mi
Time1:21:39
Pace6:14 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3719:046:0819:04
6:08
-
10K
6.21 mi10:38:2237:496:0518:45
6:02
-0:06
15K
9.32 mi10:57:1856:456:0518:56
6:06
+0:04
20K
12.43 mi11:16:221:15:496:0619:04
6:08
+0:02
Half
13.11 mi11:20:291:19:566:064:07
6:02
-0:06
25K
15.53 mi11:35:171:34:446:0614:48
6:06
+0:04
30K
18.64 mi11:55:031:54:306:0919:46
6:22
+0:16
20M
20.00 mi12:03:352:03:026:098:32
6:17
-0:05
21M
21.00 mi12:10:102:09:376:106:35
6:35
+0:18
35K
21.75 mi12:14:452:14:126:104:35
6:08
-0:27
23M
23.00 mi12:22:382:22:056:117:53
6:18
+0:10
24M
24.00 mi12:28:452:28:126:116:07
6:07
-0:11
40K
24.85 mi12:33:592:33:266:105:14
6:07
0:00
25.2M
25.20 mi12:36:122:35:396:112:13
6:26
+0:19
Finish
26.22 mi12:42:082:41:356:105:56
5:49
-0:37

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

5:49 /mi

Average Pace

6:10 /mi

Slowest Pace

6:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:47

95% of race

Time at Steady Pace

8:48

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:10 /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 mi10:19:3719:046:0819:04
6:08
#976
10K
6.21 mi10:38:2237:496:0518:45
6:02
#934
15K
9.32 mi10:57:1856:456:0518:56
6:06
#930
20K
12.43 mi11:16:221:15:496:0619:04
6:08
#914
Half
13.11 mi11:20:291:19:566:064:07
6:02
#902
25K
15.53 mi11:35:171:34:446:0614:48
6:06
#867
30K
18.64 mi11:55:031:54:306:0919:46
6:22
#875
20M
20.00 mi12:03:352:03:026:098:32
6:17
#859
21M
21.00 mi12:10:102:09:376:106:35
6:35
#844
35K
21.75 mi12:14:452:14:126:104:35
6:08
#846
23M
23.00 mi12:22:382:22:056:117:53
6:18
#822
24M
24.00 mi12:28:452:28:126:116:07
6:07
#810
40K
24.85 mi12:33:592:33:266:105:14
6:07
#784
25.2M
25.20 mi12:36:122:35:396:112:13
6:26
#771
Finish
26.22 mi12:42:082:41:356:105:56
5:49
#735
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi976920920947(Top 4%)898(Top 6%)898(Top 17%)
10K6.21 mi3.10 mi934+42882+38882+38894(Top 3%)845(Top 6%)845(Top 16%)
15K9.32 mi3.11 mi930+4880+2880+2947(Top 4%)898(Top 6%)898(Top 17%)
20K12.43 mi3.11 mi914+16865+15865+15876(Top 3%)831(Top 5%)831(Top 16%)
Half13.11 mi0.68 mi902+12854+11854+11842(Top 3%)800(Top 5%)800(Top 15%)
25K15.53 mi2.42 mi867+35820+34820+34756(Top 3%)715(Top 5%)715(Top 14%)
30K18.64 mi3.11 mi875-8827-7827-71089(Top 4%)1036(Top 7%)1036(Top 20%)
20M20.00 mi1.36 mi859+16813+14813+14818(Top 3%)778(Top 5%)778(Top 15%)
21M21.00 mi1.00 mi844+15799+14799+14819(Top 3%)775(Top 5%)775(Top 15%)
35K21.75 mi0.75 mi846-2801-2801-2991(Top 4%)941(Top 6%)941(Top 18%)
23M23.00 mi1.25 mi822+24777+24777+24820(Top 3%)778(Top 5%)778(Top 15%)
24M24.00 mi1.00 mi810+12765+12765+12786(Top 3%)744(Top 5%)744(Top 14%)
40K24.85 mi0.85 mi784+26741+24741+24521(Top 2%)492(Top 3%)492(Top 9%)
25.2M25.20 mi0.35 mi771+13728+13728+13400(Top 2%)378(Top 2%)378(Top 7%)
Finish26.22 mi1.02 mi735+36693+35693+35412(Top 2%)391(Top 3%)391(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

947

Males

898

M18-39

898

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

894

Males

845

M18-39

845

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

947

Males

898

M18-39

898

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

876

Males

831

M18-39

831

20K→Half

12.4 - 13.1 mi

Top 3%
×2story building
+19ft-37ft

Overall

842

Males

800

M18-39

800

Half→25K

13.1 - 15.5 mi

Top 3%
×4story building
+66ft-88ft

Overall

756

Males

715

M18-39

715

25K→30K

15.5 - 18.6 mi

Top 4%
×9story building
+181ft-148ft

Overall

1089

Males

1036

M18-39

1036

30K→20M

18.6 - 20.0 mi

Top 3%
×5story building
+64ft-50ft

Overall

818

Males

778

M18-39

778

20M→21M

20.0 - 21.0 mi

Top 3%
×8story building
+106ft-24ft

Overall

819

Males

775

M18-39

775

21M→35K

21.0 - 21.8 mi

Top 4%
×7story building
+17ft-86ft

Overall

991

Males

941

M18-39

941

35K→23M

21.8 - 23.0 mi

Top 3%
×5story building
+23ft-63ft

Overall

820

Males

778

M18-39

778

23M→24M

23.0 - 24.0 mi

Top 3%
×6story building
+12ft-82ft

Overall

786

Males

744

M18-39

744

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

521

Males

492

M18-39

492

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

400

Males

378

M18-39

378

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

412

Males

391

M18-39

391

Passing Analysis

Category:
Athletes Passed
406
Passed By
165
Net Change
+241
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#976
5K → 10K7331+42#976#934
10K → 15K3228+4#934#930
15K → 20K4226+16#930#914
20K → Half142+12#914#902
Half → 25K4510+35#902#867
25K → 30K2533-8#867#875
30K → 20M215+16#875#859
20M → 21M249+15#859#844
21M → 35K68-2#844#846
35K → 23M295+24#846#822
23M → 24M164+12#822#810
24M → 40K260+26#810#784
40K → 25.2M141+13#784#771
25.2M → Finish393+36#771#735
TOTALS406165+241
📊

Passing Visuals

Category:
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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