Boston Marathon logo
BOSTON MARATHON 2024

Justin Zechman

Bib: 7404•M

PA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 15%
Gender (Male)
#0 / 14578
Top 24%
Masters (Masters Men)
#0 / 9729
Top 12%
Division (M40-44)
#0 / 2009
Top 32%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:37
Rank: #4283
Start → 5K
20:37 | 6:38/mi
10K· 6.21 mi
41:20
Rank: #4174 (+109)
5K → 10K
20:43 | 6:40/mi
15K· 9.32 mi
1:02:18
Rank: #4179 (-5)
10K → 15K
20:58 | 6:45/mi
20K· 12.43 mi
1:23:29
Rank: #4087 (+92)
15K → 20K
21:11 | 6:49/mi
Half· 13.11 mi
1:28:05
Rank: #4082 (+5)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:06
Rank: #4105 (-23)
Half → 25K
17:01 | 7:01/mi
30K· 18.64 mi
2:09:02
Rank: #4554 (-449)
25K → 30K
23:56 | 7:42/mi
20M
2:19:27
Rank: #4532 (+22)
30K → 20M
10:25 | 7:40/mi
21M
2:27:15
Rank: #4382 (+150)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:32:36
Rank: #4299 (+83)
21M → 35K
5:21 | 7:09/mi
23M
2:42:15
Rank: #4195 (+104)
35K → 23M
9:39 | 7:42/mi
24M
2:49:33
Rank: #4079 (+116)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
2:55:51
Rank: #3977 (+102)
24M → 40K
6:18 | 7:22/mi
25.2M
2:58:37
Rank: #3923 (+54)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:05:28
Rank: #3770 (+153)
25.2M → Finish
6:51 | 6:43/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
Time1:28:05
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:37:23
Pace7:26 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1420:376:3820:37
6:38
-
10K
6.21 mi10:47:5741:206:3920:43
6:40
+0:02
15K
9.32 mi11:08:551:02:186:4120:58
6:45
+0:05
20K
12.43 mi11:30:061:23:296:4321:11
6:49
+0:04
Half
13.11 mi11:34:421:28:056:434:36
6:45
-0:04
25K
15.53 mi11:51:431:45:066:4617:01
7:01
+0:16
30K
18.64 mi12:15:392:09:026:5523:56
7:42
+0:41
20M
20.00 mi12:26:042:19:276:5810:25
7:40
-0:02
21M
21.00 mi12:33:522:27:157:017:48
7:48
+0:08
35K
21.75 mi12:39:132:32:367:015:21
7:09
-0:39
23M
23.00 mi12:48:522:42:157:039:39
7:42
+0:33
24M
24.00 mi12:56:102:49:337:047:18
7:18
-0:24
40K
24.85 mi13:02:282:55:517:056:18
7:22
+0:04
25.2M
25.20 mi13:05:142:58:377:052:46
8:01
+0:39
Finish
26.22 mi13:12:053:05:287:056:51
6:43
-1:18

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

6:38 /mi

Average Pace

7:05 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:56

51% of race

Time at Steady Pace

35:58

19% of race

Time at Slower Pace

54:34

29% of race

Average Pace: 7:04 /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 mi10:27:1420:376:3820:37
6:38
#4283
10K
6.21 mi10:47:5741:206:3920:43
6:40
#4174
15K
9.32 mi11:08:551:02:186:4120:58
6:45
#4179
20K
12.43 mi11:30:061:23:296:4321:11
6:49
#4087
Half
13.11 mi11:34:421:28:056:434:36
6:45
#4082
25K
15.53 mi11:51:431:45:066:4617:01
7:01
#4105
30K
18.64 mi12:15:392:09:026:5523:56
7:42
#4554
20M
20.00 mi12:26:042:19:276:5810:25
7:40
#4532
21M
21.00 mi12:33:522:27:157:017:48
7:48
#4382
35K
21.75 mi12:39:132:32:367:015:21
7:09
#4299
23M
23.00 mi12:48:522:42:157:039:39
7:42
#4195
24M
24.00 mi12:56:102:49:337:047:18
7:18
#4079
40K
24.85 mi13:02:282:55:517:056:18
7:22
#3977
25.2M
25.20 mi13:05:142:58:377:052:46
8:01
#3923
Finish
26.22 mi13:12:053:05:287:056:51
6:43
#3770
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4283403240324278(Top 17%)4000(Top 27%)4000(Top 199%)
10K6.21 mi3.10 mi4174+1093934+983934+984065(Top 16%)3822(Top 26%)3822(Top 190%)
15K9.32 mi3.11 mi4179-53922+123922+124278(Top 17%)4000(Top 27%)4000(Top 199%)
20K12.43 mi3.11 mi4087+923843+793843+794001(Top 16%)3735(Top 26%)3735(Top 186%)
Half13.11 mi0.68 mi4082+53839+43839+44077(Top 16%)3801(Top 26%)3801(Top 189%)
25K15.53 mi2.42 mi4105-233849-103849-104429(Top 17%)4048(Top 28%)4048(Top 201%)
30K18.64 mi3.11 mi4554-4494199-3504199-3506143(Top 24%)5096(Top 35%)5096(Top 254%)
20M20.00 mi1.36 mi4532+224169+304169+305019(Top 20%)4258(Top 29%)4258(Top 212%)
21M21.00 mi1.00 mi4382+1504027+1424027+1423456(Top 14%)3062(Top 21%)3062(Top 152%)
35K21.75 mi0.75 mi4299+833944+833944+833598(Top 14%)3173(Top 22%)3173(Top 158%)
23M23.00 mi1.25 mi4195+1043836+1083836+1084400(Top 17%)3619(Top 25%)3619(Top 180%)
24M24.00 mi1.00 mi4079+1163721+1153721+1153362(Top 13%)2879(Top 20%)2879(Top 143%)
40K24.85 mi0.85 mi3977+1023622+993622+993042(Top 12%)2598(Top 18%)2598(Top 129%)
25.2M25.20 mi0.35 mi3923+543574+483574+482803(Top 11%)2384(Top 16%)2384(Top 119%)
Finish26.22 mi1.02 mi3770+1533440+1343440+1342080(Top 8%)1816(Top 12%)1816(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4278

Males

4000

M40-44

4000

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4065

Males

3822

M40-44

3822

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4278

Males

4000

M40-44

4000

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4001

Males

3735

M40-44

3735

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4077

Males

3801

M40-44

3801

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4429

Males

4048

M40-44

4048

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6143

Males

5096

M40-44

5096

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5019

Males

4258

M40-44

4258

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3456

Males

3062

M40-44

3062

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3598

Males

3173

M40-44

3173

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4400

Males

3619

M40-44

3619

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3362

Males

2879

M40-44

2879

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3042

Males

2598

M40-44

2598

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2803

Males

2384

M40-44

2384

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2080

Males

1816

M40-44

1816

Passing Analysis

Category:
Athletes Passed
1762
Passed By
1249
Net Change
+513
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4283
5K → 10K240131+109#4283#4174
10K → 15K126131-5#4174#4179
15K → 20K192100+92#4179#4087
20K → Half2924+5#4087#4082
Half → 25K120143-23#4082#4105
25K → 30K88537-449#4105#4554
30K → 20M10280+22#4554#4532
20M → 21M17020+150#4532#4382
21M → 35K9815+83#4382#4299
35K → 23M14339+104#4299#4195
23M → 24M1259+116#4195#4079
24M → 40K11614+102#4079#3977
40K → 25.2M584+54#3977#3923
25.2M → Finish1552+153#3923#3770
TOTALS17621249+513
📊

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