Boston Marathon logo
BOSTON MARATHON 2023

Zack Jones

Bib: 2007•M

MI

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 6%
Division (M18-39)
#0 / 5285
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:10
Rank: #1066
Start → 5K
19:10 | 6:10/mi
10K· 6.21 mi
37:43
Rank: #893 (+173)
5K → 10K
18:33 | 5:58/mi
15K· 9.32 mi
56:19
Rank: #815 (+78)
10K → 15K
18:36 | 5:59/mi
20K· 12.43 mi
1:15:11
Rank: #772 (+43)
15K → 20K
18:52 | 6:04/mi
Half· 13.11 mi
1:19:14
Rank: #765 (+7)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:34:43
Rank: #864 (-99)
Half → 25K
15:29 | 6:23/mi
30K· 18.64 mi
1:54:12
Rank: #839 (+25)
25K → 30K
19:29 | 6:16/mi
20M
2:03:03
Rank: #865 (-26)
30K → 20M
8:51 | 6:31/mi
21M
2:09:56
Rank: #882 (-17)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:14:39
Rank: #892 (-10)
21M → 35K
4:43 | 6:18/mi
23M
2:22:48
Rank: #901 (-9)
35K → 23M
8:09 | 6:31/mi
24M
2:29:15
Rank: #907 (-6)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:35:08
Rank: #947 (-40)
24M → 40K
5:53 | 6:53/mi
25.2M
2:37:41
Rank: #966 (-19)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:44:28
Rank: #1012 (-46)
25.2M → Finish
6:47 | 6:39/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
Time1:19:14
Pace6:03 /mi
2nd Half
Distance13.11 mi
Time1:25:14
Pace6:30 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1019:106:1019:10
6:10
-
10K
6.21 mi10:38:4337:436:0418:33
5:58
-0:12
15K
9.32 mi10:57:1956:196:0318:36
5:59
+0:01
20K
12.43 mi11:16:111:15:116:0318:52
6:04
+0:05
Half
13.11 mi11:20:141:19:146:034:03
5:56
-0:08
25K
15.53 mi11:35:431:34:436:0615:29
6:23
+0:27
30K
18.64 mi11:55:121:54:126:0819:29
6:16
-0:07
20M
20.00 mi12:04:032:03:036:098:51
6:31
+0:15
21M
21.00 mi12:10:562:09:566:116:53
6:53
+0:22
35K
21.75 mi12:15:392:14:396:114:43
6:18
-0:35
23M
23.00 mi12:23:482:22:486:138:09
6:31
+0:13
24M
24.00 mi12:30:152:29:156:136:27
6:27
-0:04
40K
24.85 mi12:36:082:35:086:145:53
6:53
+0:26
25.2M
25.20 mi12:38:412:37:416:152:33
7:24
+0:31
Finish
26.22 mi12:45:282:44:286:176:47
6:39
-0:45

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

6:17 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:14

48% of race

Time at Steady Pace

1:03:08

38% of race

Time at Slower Pace

22:06

13% 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 mi10:20:1019:106:1019:10
6:10
#1066
10K
6.21 mi10:38:4337:436:0418:33
5:58
#893
15K
9.32 mi10:57:1956:196:0318:36
5:59
#815
20K
12.43 mi11:16:111:15:116:0318:52
6:04
#772
Half
13.11 mi11:20:141:19:146:034:03
5:56
#765
25K
15.53 mi11:35:431:34:436:0615:29
6:23
#864
30K
18.64 mi11:55:121:54:126:0819:29
6:16
#839
20M
20.00 mi12:04:032:03:036:098:51
6:31
#865
21M
21.00 mi12:10:562:09:566:116:53
6:53
#882
35K
21.75 mi12:15:392:14:396:114:43
6:18
#892
23M
23.00 mi12:23:482:22:486:138:09
6:31
#901
24M
24.00 mi12:30:152:29:156:136:27
6:27
#907
40K
24.85 mi12:36:082:35:086:145:53
6:53
#947
25.2M
25.20 mi12:38:412:37:416:152:33
7:24
#966
Finish
26.22 mi12:45:282:44:286:176:47
6:39
#1012
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi106610081008679(Top 3%)636(Top 4%)636(Top 12%)
10K6.21 mi3.10 mi893+173843+165843+165743(Top 3%)699(Top 5%)699(Top 13%)
15K9.32 mi3.11 mi815+78768+75768+75679(Top 3%)636(Top 4%)636(Top 12%)
20K12.43 mi3.11 mi772+43727+41727+41718(Top 3%)676(Top 4%)676(Top 13%)
Half13.11 mi0.68 mi765+7721+6721+6635(Top 2%)597(Top 4%)597(Top 11%)
25K15.53 mi2.42 mi864-99817-96817-961656(Top 6%)1586(Top 10%)1586(Top 30%)
30K18.64 mi3.11 mi839+25795+22795+22844(Top 3%)804(Top 5%)804(Top 15%)
20M20.00 mi1.36 mi865-26818-23818-231472(Top 6%)1401(Top 9%)1401(Top 27%)
21M21.00 mi1.00 mi882-17836-18836-181677(Top 6%)1593(Top 10%)1593(Top 30%)
35K21.75 mi0.75 mi892-10845-9845-91560(Top 6%)1480(Top 10%)1480(Top 28%)
23M23.00 mi1.25 mi901-9854-9854-91435(Top 5%)1362(Top 9%)1362(Top 26%)
24M24.00 mi1.00 mi907-6860-6860-61864(Top 7%)1750(Top 12%)1750(Top 33%)
40K24.85 mi0.85 mi947-40900-40900-403174(Top 12%)2904(Top 19%)2904(Top 55%)
25.2M25.20 mi0.35 mi966-19917-17917-173296(Top 12%)2979(Top 20%)2979(Top 56%)
Finish26.22 mi1.02 mi1012-46963-46963-463239(Top 12%)2911(Top 19%)2911(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

679

Males

636

M18-39

636

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

743

Males

699

M18-39

699

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

679

Males

636

M18-39

636

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

718

Males

676

M18-39

676

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

635

Males

597

M18-39

597

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1656

Males

1586

M18-39

1586

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

844

Males

804

M18-39

804

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1472

Males

1401

M18-39

1401

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1677

Males

1593

M18-39

1593

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1560

Males

1480

M18-39

1480

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1435

Males

1362

M18-39

1362

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1864

Males

1750

M18-39

1750

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3174

Males

2904

M18-39

2904

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3296

Males

2979

M18-39

2979

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3239

Males

2911

M18-39

2911

Passing Analysis

Category:
Athletes Passed
426
Passed By
372
Net Change
+54
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1066
5K → 10K1796+173#1066#893
10K → 15K802+78#893#815
15K → 20K507+43#815#772
20K → Half81+7#772#765
Half → 25K9108-99#765#864
25K → 30K4217+25#864#839
30K → 20M632-26#839#865
20M → 21M1330-17#865#882
21M → 35K414-10#882#892
35K → 23M1524-9#892#901
23M → 24M1117-6#901#907
24M → 40K141-40#907#947
40K → 25.2M322-19#947#966
25.2M → Finish551-46#966#1012
TOTALS426372+54
📊

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