Boston Marathon logo
BOSTON MARATHON 2023

Josh Stone

Bib: 30517•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:36
Rank: #24690
Start → 5K
10:30/mi
32:36 split
10K· 6.21 mi
1:06:00
Rank: #24957 (-267)
5K → 10K
10:45/mi
33:24 split
15K· 9.32 mi
1:39:45
Rank: #24986 (-29)
10K → 15K
10:52/mi
33:45 split
20K· 12.43 mi
2:14:32
Rank: #24949 (+37)
15K → 20K
11:12/mi
34:47 split
Half· 13.11 mi
2:21:53
Rank: #24933 (+16)
20K → Half
10:46/mi
7:21 split
25K· 15.53 mi
2:48:58
Rank: #24814 (+119)
Half → 25K
11:10/mi
27:05 split
30K· 18.64 mi
3:27:43
Rank: #24900 (-86)
25K → 30K
12:28/mi
38:45 split
20M
3:44:35
Rank: #24874 (+26)
30K → 20M
12:25/mi
16:52 split
21M
3:56:44
Rank: #24790 (+84)
20M → 21M
12:09/mi
12:09 split
35K· 21.75 mi
4:05:06
Rank: #24756 (+34)
21M → 35K
11:11/mi
8:22 split
23M
4:20:09
Rank: #24729 (+27)
35K → 23M
12:01/mi
15:03 split
24M
4:32:34
Rank: #24752 (-23)
23M → 24M
12:25/mi
12:25 split
40K· 24.85 mi
4:42:10
Rank: #24689 (+63)
24M → 40K
11:14/mi
9:36 split
25.2M
4:46:35
Rank: #24681 (+8)
40K → 25.2M
12:48/mi
4:25 split
Finish· 26.22 mi
4:57:12
Rank: #24641 (+40)
25.2M → Finish
10:25/mi
10:37 split

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
Time2:21:53
Pace10:49 /mi
2nd Half
Distance13.11 mi
Time2:35:19
Pace11:51 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:2432:3610:3032:36
10:30
-
10K
6.21 mi12:29:481:06:0010:3733:24
10:45
+0:15
15K
9.32 mi13:03:331:39:4510:4233:45
10:52
+0:07
20K
12.43 mi13:38:202:14:3210:5034:47
11:12
+0:20
Half
13.11 mi13:45:412:21:5310:497:21
10:46
-0:26
25K
15.53 mi14:12:462:48:5810:5327:05
11:10
+0:24
30K
18.64 mi14:51:313:27:4311:0938:45
12:28
+1:18
20M
20.00 mi15:08:233:44:3511:1416:52
12:25
-0:03
21M
21.00 mi15:20:323:56:4411:1612:09
12:09
-0:16
35K
21.75 mi15:28:544:05:0611:168:22
11:11
-0:58
23M
23.00 mi15:43:574:20:0911:1915:03
12:01
+0:50
24M
24.00 mi15:56:224:32:3411:2112:25
12:25
+0:24
40K
24.85 mi16:05:584:42:1011:219:36
11:14
-1:11
25.2M
25.20 mi16:10:234:46:3511:224:25
12:48
+1:34
Finish
26.22 mi16:21:004:57:1211:2110:37
10:25
-2:23

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

10:25 /mi

Average Pace

11:21 /mi

Slowest Pace

12:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:58

28% of race

Time at Steady Pace

1:53:35

38% of race

Time at Slower Pace

1:39:39

34% of race

Average Pace: 11:20 /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 mi11:56:2432:3610:3032:36
10:30
#24690
10K
6.21 mi12:29:481:06:0010:3733:24
10:45
#24957
15K
9.32 mi13:03:331:39:4510:4233:45
10:52
#24986
20K
12.43 mi13:38:202:14:3210:5034:47
11:12
#24949
Half
13.11 mi13:45:412:21:5310:497:21
10:46
#24933
25K
15.53 mi14:12:462:48:5810:5327:05
11:10
#24814
30K
18.64 mi14:51:313:27:4311:0938:45
12:28
#24900
20M
20.00 mi15:08:233:44:3511:1416:52
12:25
#24874
21M
21.00 mi15:20:323:56:4411:1612:09
12:09
#24790
35K
21.75 mi15:28:544:05:0611:168:22
11:11
#24756
23M
23.00 mi15:43:574:20:0911:1915:03
12:01
#24729
24M
24.00 mi15:56:224:32:3411:2112:25
12:25
#24752
40K
24.85 mi16:05:584:42:1011:219:36
11:14
#24689
25.2M
25.20 mi16:10:234:46:3511:224:25
12:48
#24681
Finish
26.22 mi16:21:004:57:1211:2110:37
10:25
#24641
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24690144041440425017(Top 94%)14525(Top 96%)14525(Top 275%)
10K6.21 mi3.10 mi24957-26714526-12214526-12225088(Top 94%)14575(Top 96%)14575(Top 276%)
15K9.32 mi3.11 mi24986-2914536-1014536-1025017(Top 94%)14525(Top 96%)14525(Top 275%)
20K12.43 mi3.11 mi24949+3714498+3814498+3824879(Top 93%)14446(Top 95%)14446(Top 273%)
Half13.11 mi0.68 mi24933+1614488+1014488+1024627(Top 93%)14328(Top 94%)14328(Top 271%)
25K15.53 mi2.42 mi24814+11914431+5714431+5724225(Top 91%)14133(Top 93%)14133(Top 267%)
30K18.64 mi3.11 mi24900-8614447-1614447-1624971(Top 94%)14397(Top 95%)14397(Top 272%)
20M20.00 mi1.36 mi24874+2614424+2314424+2324645(Top 93%)14207(Top 94%)14207(Top 269%)
21M21.00 mi1.00 mi24790+8414385+3914385+3922972(Top 86%)13418(Top 88%)13418(Top 254%)
35K21.75 mi0.75 mi24756+3414365+2014365+2023625(Top 89%)13654(Top 90%)13654(Top 258%)
23M23.00 mi1.25 mi24729+2714344+2114344+2124038(Top 90%)13868(Top 91%)13868(Top 262%)
24M24.00 mi1.00 mi24752-23143441434424963(Top 94%)14281(Top 94%)14281(Top 270%)
40K24.85 mi0.85 mi24689+6314305+3914305+3922783(Top 86%)13220(Top 87%)13220(Top 250%)
25.2M25.20 mi0.35 mi24681+814306-114306-123719(Top 89%)13657(Top 90%)13657(Top 258%)
Finish26.22 mi1.02 mi24641+4014284+2214284+2222839(Top 86%)13253(Top 87%)13253(Top 251%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

25017

Males

14525

M18-39

14525

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

25088

Males

14575

M18-39

14575

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

25017

Males

14525

M18-39

14525

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

24879

Males

14446

M18-39

14446

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24627

Males

14328

M18-39

14328

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

24225

Males

14133

M18-39

14133

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

24971

Males

14397

M18-39

14397

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24645

Males

14207

M18-39

14207

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

22972

Males

13418

M18-39

13418

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23625

Males

13654

M18-39

13654

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

24038

Males

13868

M18-39

13868

23M→24M

23.0 - 24.0 mi

Top 94%
×6stories
+12ft-82ft

Overall

24963

Males

14281

M18-39

14281

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22783

Males

13220

M18-39

13220

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23719

Males

13657

M18-39

13657

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22839

Males

13253

M18-39

13253

Passing Analysis

Category:
Athletes Passed
928
Passed By
879
Net Change
+49
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24690
5K → 10K92359-267#24690#24957
10K → 15K99128-29#24957#24986
15K → 20K12285+37#24986#24949
20K → Half237+16#24949#24933
Half → 25K13819+119#24933#24814
25K → 30K60146-86#24814#24900
30K → 20M6034+26#24900#24874
20M → 21M873+84#24874#24790
21M → 35K395+34#24790#24756
35K → 23M5528+27#24756#24729
23M → 24M1336-23#24729#24752
24M → 40K674+63#24752#24689
40K → 25.2M1810+8#24689#24681
25.2M → Finish5515+40#24681#24641
TOTALS928879+49
📊

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