Boston Marathon logo
BOSTON MARATHON 2025

Joseph Kash

Bib: 4752•M

OH

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:52
Rank: #5582
Start → 5K
20:52 | 6:43/mi
10K· 6.21 mi
41:51
Rank: #5706 (-124)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:02:53
Rank: #5665 (+41)
10K → 15K
21:02 | 6:46/mi
20K· 12.43 mi
1:24:02
Rank: #5589 (+76)
15K → 20K
21:09 | 6:48/mi
Half· 13.11 mi
1:28:44
Rank: #5660 (-71)
20K → Half
4:42 | 6:53/mi
25K· 15.53 mi
1:45:39
Rank: #5720 (-60)
Half → 25K
16:55 | 6:59/mi
30K· 18.64 mi
2:07:52
Rank: #5667 (+53)
25K → 30K
22:13 | 7:09/mi
20M
2:17:39
Rank: #5608 (+59)
30K → 20M
9:47 | 7:12/mi
21M
2:25:27
Rank: #5616 (-8)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:30:27
Rank: #5513 (+103)
21M → 35K
5:00 | 6:41/mi
23M
2:39:37
Rank: #5441 (+72)
35K → 23M
9:10 | 7:19/mi
24M
2:46:37
Rank: #5363 (+78)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
2:52:49
Rank: #5310 (+53)
24M → 40K
6:12 | 7:15/mi
25.2M
2:55:31
Rank: #5283 (+27)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
3:02:12
Rank: #5163 (+120)
25.2M → Finish
6:41 | 6:34/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
Time1:28:44
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:33:28
Pace7:08 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5820:526:4320:52
6:43
-
10K
6.21 mi10:45:5741:516:4420:59
6:45
+0:02
15K
9.32 mi11:06:591:02:536:4521:02
6:46
+0:01
20K
12.43 mi11:28:081:24:026:4621:09
6:48
+0:02
Half
13.11 mi11:32:501:28:446:464:42
6:53
+0:05
25K
15.53 mi11:49:451:45:396:4816:55
6:59
+0:06
30K
18.64 mi12:11:582:07:526:5222:13
7:09
+0:10
20M
20.00 mi12:21:452:17:396:539:47
7:12
+0:03
21M
21.00 mi12:29:332:25:276:567:48
7:48
+0:36
35K
21.75 mi12:34:332:30:276:555:00
6:41
-1:07
23M
23.00 mi12:43:432:39:376:569:10
7:19
+0:38
24M
24.00 mi12:50:432:46:376:577:00
7:00
-0:19
40K
24.85 mi12:56:552:52:496:576:12
7:15
+0:15
25.2M
25.20 mi12:59:372:55:316:582:42
7:50
+0:35
Finish
26.22 mi13:06:183:02:126:576:41
6:34
-1:16

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

6:34 /mi

Average Pace

6:57 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:20

86% of race

Time at Steady Pace

15:22

8% of race

Time at Slower Pace

10:30

6% of race

Average Pace: 6:57 /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 mi10:24:5820:526:4320:52
6:43
#5582
10K
6.21 mi10:45:5741:516:4420:59
6:45
#5706
15K
9.32 mi11:06:591:02:536:4521:02
6:46
#5665
20K
12.43 mi11:28:081:24:026:4621:09
6:48
#5589
Half
13.11 mi11:32:501:28:446:464:42
6:53
#5660
25K
15.53 mi11:49:451:45:396:4816:55
6:59
#5720
30K
18.64 mi12:11:582:07:526:5222:13
7:09
#5667
20M
20.00 mi12:21:452:17:396:539:47
7:12
#5608
21M
21.00 mi12:29:332:25:276:567:48
7:48
#5616
35K
21.75 mi12:34:332:30:276:555:00
6:41
#5513
23M
23.00 mi12:43:432:39:376:569:10
7:19
#5441
24M
24.00 mi12:50:432:46:376:577:00
7:00
#5363
40K
24.85 mi12:56:552:52:496:576:12
7:15
#5310
25.2M
25.20 mi12:59:372:55:316:582:42
7:50
#5283
Finish
26.22 mi13:06:183:02:126:576:41
6:34
#5163
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5582516751675770(Top 20%)5259(Top 33%)5259(Top 93%)
10K6.21 mi3.10 mi5706-1245267-1005267-1005868(Top 21%)5369(Top 33%)5369(Top 95%)
15K9.32 mi3.11 mi5665+415220+475220+475770(Top 20%)5259(Top 33%)5259(Top 93%)
20K12.43 mi3.11 mi5589+765141+795141+795352(Top 19%)4908(Top 30%)4908(Top 87%)
Half13.11 mi0.68 mi5660-715199-585199-586742(Top 24%)6007(Top 37%)6007(Top 106%)
25K15.53 mi2.42 mi5720-605240-415240-416153(Top 22%)5503(Top 34%)5503(Top 98%)
30K18.64 mi3.11 mi5667+535171+695171+695599(Top 20%)5011(Top 31%)5011(Top 89%)
20M20.00 mi1.36 mi5608+595120+515120+515181(Top 18%)4611(Top 29%)4611(Top 82%)
21M21.00 mi1.00 mi5616-85115+55115+56151(Top 22%)5152(Top 32%)5152(Top 91%)
35K21.75 mi0.75 mi5513+1035020+955020+953407(Top 12%)3106(Top 19%)3106(Top 55%)
23M23.00 mi1.25 mi5441+724951+694951+695556(Top 20%)4700(Top 29%)4700(Top 83%)
24M24.00 mi1.00 mi5363+784878+734878+734610(Top 16%)3981(Top 25%)3981(Top 71%)
40K24.85 mi0.85 mi5310+534822+564822+565322(Top 19%)4423(Top 27%)4423(Top 78%)
25.2M25.20 mi0.35 mi5283+274793+294793+294964(Top 17%)4081(Top 25%)4081(Top 72%)
Finish26.22 mi1.02 mi5163+1204685+1084685+1083090(Top 11%)2745(Top 17%)2745(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5770

Males

5259

M18-39

5259

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5868

Males

5369

M18-39

5369

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5770

Males

5259

M18-39

5259

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5352

Males

4908

M18-39

4908

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6742

Males

6007

M18-39

6007

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6153

Males

5503

M18-39

5503

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5599

Males

5011

M18-39

5011

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

5181

Males

4611

M18-39

4611

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6151

Males

5152

M18-39

5152

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3407

Males

3106

M18-39

3106

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5556

Males

4700

M18-39

4700

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4610

Males

3981

M18-39

3981

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5322

Males

4423

M18-39

4423

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4964

Males

4081

M18-39

4081

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3090

Males

2745

M18-39

2745

Passing Analysis

Category:
Athletes Passed
1465
Passed By
1046
Net Change
+419
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5582
5K → 10K125249-124#5582#5706
10K → 15K145104+41#5706#5665
15K → 20K16286+76#5665#5589
20K → Half677-71#5589#5660
Half → 25K105165-60#5660#5720
25K → 30K202149+53#5720#5667
30K → 20M10041+59#5667#5608
20M → 21M6977-8#5608#5616
21M → 35K1052+103#5616#5513
35K → 23M12048+72#5513#5441
23M → 24M9012+78#5441#5363
24M → 40K7623+53#5363#5310
40K → 25.2M369+27#5310#5283
25.2M → Finish1244+120#5283#5163
TOTALS14651046+419
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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