Boston Marathon logo
BOSTON MARATHON 2024

Jack Smith

Bib: 939•M

ON

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 3%
Gender (Male)
#0 / 14578
Top 5%
Division (M18-39)
#0 / 4849
Top 12%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:25
Rank: #738
Start → 5K
18:25 | 5:56/mi
10K· 6.21 mi
36:56
Rank: #749 (-11)
5K → 10K
18:31 | 5:58/mi
15K· 9.32 mi
55:38
Rank: #759 (-10)
10K → 15K
18:42 | 6:01/mi
20K· 12.43 mi
1:14:40
Rank: #785 (-26)
15K → 20K
19:02 | 6:08/mi
Half· 13.11 mi
1:18:45
Rank: #777 (+8)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:33:34
Rank: #739 (+38)
Half → 25K
14:49 | 6:07/mi
30K· 18.64 mi
1:53:12
Rank: #700 (+39)
25K → 30K
19:38 | 6:19/mi
20M
2:02:03
Rank: #691 (+9)
30K → 20M
8:51 | 6:31/mi
21M
2:09:02
Rank: #697 (-6)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:14:04
Rank: #708 (-11)
21M → 35K
5:02 | 6:44/mi
23M
2:22:40
Rank: #731 (-23)
35K → 23M
8:36 | 6:52/mi
24M
2:29:27
Rank: #747 (-16)
23M → 24M
6:47 | 6:47/mi
40K· 24.85 mi
2:35:06
Rank: #729 (+18)
24M → 40K
5:39 | 6:36/mi
25.2M
2:37:36
Rank: #731 (-2)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:44:10
Rank: #726 (+5)
25.2M → Finish
6:34 | 6:27/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:45
Pace6:00 /mi
2nd Half
Distance13.11 mi
Time1:25:25
Pace6:31 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4318:255:5618:25
5:56
-
10K
6.21 mi10:37:1436:565:5718:31
5:58
+0:02
15K
9.32 mi10:55:5655:385:5818:42
6:01
+0:03
20K
12.43 mi11:14:581:14:406:0019:02
6:08
+0:07
Half
13.11 mi11:19:031:18:456:004:05
5:59
-0:09
25K
15.53 mi11:33:521:33:346:0114:49
6:07
+0:08
30K
18.64 mi11:53:301:53:126:0419:38
6:19
+0:12
20M
20.00 mi12:02:212:02:036:068:51
6:31
+0:12
21M
21.00 mi12:09:202:09:026:096:59
6:59
+0:28
35K
21.75 mi12:14:222:14:046:105:02
6:44
-0:15
23M
23.00 mi12:22:582:22:406:128:36
6:52
+0:08
24M
24.00 mi12:29:452:29:276:146:47
6:47
-0:05
40K
24.85 mi12:35:242:35:066:145:39
6:36
-0:11
25.2M
25.20 mi12:37:542:37:366:152:30
7:15
+0:39
Finish
26.22 mi12:44:282:44:106:166:34
6:27
-0:48

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

5:56 /mi

Average Pace

6:16 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:34

57% of race

Time at Steady Pace

40:42

25% of race

Time at Slower Pace

29:54

18% of race

Average Pace: 6:16 /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 mi10:18:4318:255:5618:25
5:56
#738
10K
6.21 mi10:37:1436:565:5718:31
5:58
#749
15K
9.32 mi10:55:5655:385:5818:42
6:01
#759
20K
12.43 mi11:14:581:14:406:0019:02
6:08
#785
Half
13.11 mi11:19:031:18:456:004:05
5:59
#777
25K
15.53 mi11:33:521:33:346:0114:49
6:07
#739
30K
18.64 mi11:53:301:53:126:0419:38
6:19
#700
20M
20.00 mi12:02:212:02:036:068:51
6:31
#691
21M
21.00 mi12:09:202:09:026:096:59
6:59
#697
35K
21.75 mi12:14:222:14:046:105:02
6:44
#708
23M
23.00 mi12:22:582:22:406:128:36
6:52
#731
24M
24.00 mi12:29:452:29:276:146:47
6:47
#747
40K
24.85 mi12:35:242:35:066:145:39
6:36
#729
25.2M
25.20 mi12:37:542:37:366:152:30
7:15
#731
Finish
26.22 mi12:44:282:44:106:166:34
6:27
#726
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi738708708817(Top 3%)791(Top 5%)791(Top 16%)
10K6.21 mi3.10 mi749-11722-14722-14767(Top 3%)740(Top 5%)740(Top 15%)
15K9.32 mi3.11 mi759-10732-10732-10817(Top 3%)791(Top 5%)791(Top 16%)
20K12.43 mi3.11 mi785-26758-26758-26865(Top 3%)832(Top 6%)832(Top 17%)
Half13.11 mi0.68 mi777+8751+7751+7745(Top 3%)718(Top 5%)718(Top 15%)
25K15.53 mi2.42 mi739+38711+40711+40681(Top 3%)651(Top 4%)651(Top 13%)
30K18.64 mi3.11 mi700+39670+41670+41671(Top 3%)641(Top 4%)641(Top 13%)
20M20.00 mi1.36 mi691+9661+9661+9854(Top 3%)809(Top 6%)809(Top 17%)
21M21.00 mi1.00 mi697-6667-6667-61027(Top 4%)972(Top 7%)972(Top 20%)
35K21.75 mi0.75 mi708-11678-11678-111958(Top 8%)1805(Top 12%)1805(Top 37%)
23M23.00 mi1.25 mi731-23699-21699-211482(Top 6%)1386(Top 10%)1386(Top 29%)
24M24.00 mi1.00 mi747-16715-16715-161614(Top 6%)1484(Top 10%)1484(Top 31%)
40K24.85 mi0.85 mi729+18697+18697+18902(Top 4%)837(Top 6%)837(Top 17%)
25.2M25.20 mi0.35 mi731-2699-2699-2927(Top 4%)854(Top 6%)854(Top 18%)
Finish26.22 mi1.02 mi726+5694+5694+51232(Top 5%)1121(Top 8%)1121(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

817

Males

791

M18-39

791

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

767

Males

740

M18-39

740

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

817

Males

791

M18-39

791

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

865

Males

832

M18-39

832

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

745

Males

718

M18-39

718

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

681

Males

651

M18-39

651

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

671

Males

641

M18-39

641

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

854

Males

809

M18-39

809

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1027

Males

972

M18-39

972

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

1958

Males

1805

M18-39

1805

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1482

Males

1386

M18-39

1386

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1614

Males

1484

M18-39

1484

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

902

Males

837

M18-39

837

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

927

Males

854

M18-39

854

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1232

Males

1121

M18-39

1121

Passing Analysis

Category:
Athletes Passed
338
Passed By
326
Net Change
+12
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#738
5K → 10K3142-11#738#749
10K → 15K2535-10#749#759
15K → 20K2753-26#759#785
20K → Half102+8#785#777
Half → 25K5416+38#777#739
25K → 30K6526+39#739#700
30K → 20M2617+9#700#691
20M → 21M1218-6#691#697
21M → 35K819-11#697#708
35K → 23M1740-23#708#731
23M → 24M1127-16#731#747
24M → 40K268+18#747#729
40K → 25.2M810-2#729#731
25.2M → Finish1813+5#731#726
TOTALS338326+12
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing