Boston Marathon logo
BOSTON MARATHON 2024

Joseph Ostrovsky

Bib: 20871•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M60-64)
#0 / 1173
Top 45%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:43
Rank: #16488
Start → 5K
25:43 | 8:17/mi
10K· 6.21 mi
52:15
Rank: #16968 (-480)
5K → 10K
26:32 | 8:32/mi
15K· 9.32 mi
1:19:19
Rank: #17139 (-171)
10K → 15K
27:04 | 8:43/mi
20K· 12.43 mi
1:47:13
Rank: #17128 (+11)
15K → 20K
27:54 | 8:59/mi
Half· 13.11 mi
1:53:25
Rank: #17186 (-58)
20K → Half
6:12 | 9:05/mi
25K· 15.53 mi
2:15:53
Rank: #17089 (+97)
Half → 25K
22:28 | 9:16/mi
30K· 18.64 mi
2:46:05
Rank: #16928 (+161)
25K → 30K
30:12 | 9:43/mi
20M
2:59:21
Rank: #16844 (+84)
30K → 20M
13:16 | 9:46/mi
21M
3:09:32
Rank: #16659 (+185)
20M → 21M
10:11 | 10:11/mi
35K· 21.75 mi
3:16:23
Rank: #16567 (+92)
21M → 35K
6:51 | 9:09/mi
23M
3:28:18
Rank: #16379 (+188)
35K → 23M
11:55 | 9:31/mi
24M
3:37:44
Rank: #16258 (+121)
23M → 24M
9:26 | 9:26/mi
40K· 24.85 mi
3:45:53
Rank: #16118 (+140)
24M → 40K
8:09 | 9:32/mi
25.2M
3:49:29
Rank: #16048 (+70)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:58:48
Rank: #16008 (+40)
25.2M → Finish
9:19 | 9:09/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
Time1:53:25
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:05:23
Pace9:34 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5325:438:1725:43
8:17
-
10K
6.21 mi11:46:2552:158:2526:32
8:32
+0:15
15K
9.32 mi12:13:291:19:198:3127:04
8:43
+0:11
20K
12.43 mi12:41:231:47:138:3827:54
8:59
+0:16
Half
13.11 mi12:47:351:53:258:396:12
9:05
+0:06
25K
15.53 mi13:10:032:15:538:4522:28
9:16
+0:11
30K
18.64 mi13:40:152:46:058:5530:12
9:43
+0:27
20M
20.00 mi13:53:312:59:218:5813:16
9:46
+0:03
21M
21.00 mi14:03:423:09:329:0210:11
10:11
+0:25
35K
21.75 mi14:10:333:16:239:026:51
9:09
-1:02
23M
23.00 mi14:22:283:28:189:0311:55
9:31
+0:22
24M
24.00 mi14:31:543:37:449:049:26
9:26
-0:05
40K
24.85 mi14:40:033:45:539:058:09
9:32
+0:06
25.2M
25.20 mi14:43:393:49:299:063:36
10:26
+0:54
Finish
26.22 mi14:52:583:58:489:079:19
9:09
-1:17

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

8:17 /mi

Average Pace

9:07 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:13

45% of race

Time at Steady Pace

1:14:20

31% of race

Time at Slower Pace

57:15

24% of race

Average Pace: 9:06 /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 mi11:19:5325:438:1725:43
8:17
#16488
10K
6.21 mi11:46:2552:158:2526:32
8:32
#16968
15K
9.32 mi12:13:291:19:198:3127:04
8:43
#17139
20K
12.43 mi12:41:231:47:138:3827:54
8:59
#17128
Half
13.11 mi12:47:351:53:258:396:12
9:05
#17186
25K
15.53 mi13:10:032:15:538:4522:28
9:16
#17089
30K
18.64 mi13:40:152:46:058:5530:12
9:43
#16928
20M
20.00 mi13:53:312:59:218:5813:16
9:46
#16844
21M
21.00 mi14:03:423:09:329:0210:11
10:11
#16659
35K
21.75 mi14:10:333:16:239:026:51
9:09
#16567
23M
23.00 mi14:22:283:28:189:0311:55
9:31
#16379
24M
24.00 mi14:31:543:37:449:049:26
9:26
#16258
40K
24.85 mi14:40:033:45:539:058:09
9:32
#16118
25.2M
25.20 mi14:43:393:49:299:063:36
10:26
#16048
Finish
26.22 mi14:52:583:58:489:079:19
9:09
#16008
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16488105941059417546(Top 69%)11053(Top 76%)11053(Top 942%)
10K6.21 mi3.10 mi16968-48010800-20610800-20617509(Top 69%)11036(Top 76%)11036(Top 941%)
15K9.32 mi3.11 mi17139-17110865-6510865-6517546(Top 69%)11053(Top 76%)11053(Top 942%)
20K12.43 mi3.11 mi17128+1110845+2010845+2017250(Top 68%)10915(Top 75%)10915(Top 931%)
Half13.11 mi0.68 mi17186-5810857-1210857-1218610(Top 73%)11444(Top 79%)11444(Top 976%)
25K15.53 mi2.42 mi17089+9710803+5410803+5416668(Top 65%)10550(Top 72%)10550(Top 899%)
30K18.64 mi3.11 mi16928+16110666+13710666+13716317(Top 64%)10151(Top 70%)10151(Top 865%)
20M20.00 mi1.36 mi16844+8410601+6510601+6515594(Top 61%)9563(Top 66%)9563(Top 815%)
21M21.00 mi1.00 mi16659+18510496+10510496+10513667(Top 53%)8509(Top 58%)8509(Top 725%)
35K21.75 mi0.75 mi16567+9210448+4810448+4814057(Top 55%)8675(Top 60%)8675(Top 740%)
23M23.00 mi1.25 mi16379+18810326+12210326+12213605(Top 53%)8370(Top 57%)8370(Top 714%)
24M24.00 mi1.00 mi16258+12110241+8510241+8514186(Top 56%)8627(Top 59%)8627(Top 735%)
40K24.85 mi0.85 mi16118+14010154+8710154+8713243(Top 52%)8055(Top 55%)8055(Top 687%)
25.2M25.20 mi0.35 mi16048+7010106+4810106+4812600(Top 49%)7677(Top 53%)7677(Top 654%)
Finish26.22 mi1.02 mi16008+4010062+4410062+4414894(Top 58%)8944(Top 61%)8944(Top 762%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

17546

Males

11053

M60-64

11053

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

17509

Males

11036

M60-64

11036

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

17546

Males

11053

M60-64

11053

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

17250

Males

10915

M60-64

10915

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

18610

Males

11444

M60-64

11444

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

16668

Males

10550

M60-64

10550

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

16317

Males

10151

M60-64

10151

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

15594

Males

9563

M60-64

9563

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

13667

Males

8509

M60-64

8509

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14057

Males

8675

M60-64

8675

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

13605

Males

8370

M60-64

8370

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14186

Males

8627

M60-64

8627

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13243

Males

8055

M60-64

8055

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12600

Males

7677

M60-64

7677

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

14894

Males

8944

M60-64

8944

Passing Analysis

Category:
Athletes Passed
2347
Passed By
1867
Net Change
+480
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16488
5K → 10K137617-480#16488#16968
10K → 15K178349-171#16968#17139
15K → 20K278267+11#17139#17128
20K → Half2583-58#17128#17186
Half → 25K234137+97#17186#17089
25K → 30K333172+161#17089#16928
30K → 20M15975+84#16928#16844
20M → 21M21328+185#16844#16659
21M → 35K11321+92#16659#16567
35K → 23M21123+188#16567#16379
23M → 24M13918+121#16379#16258
24M → 40K15616+140#16258#16118
40K → 25.2M766+70#16118#16048
25.2M → Finish9555+40#16048#16008
TOTALS23471867+480
📊

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