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BOSTON MARATHON 2023

John Sobolewski

Bib: 22540•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:39
Rank: #19978
Start → 5K
27:39 | 8:54/mi
10K· 6.21 mi
55:13
Rank: #20124 (-146)
5K → 10K
27:34 | 8:52/mi
15K· 9.32 mi
1:22:50
Rank: #20059 (+65)
10K → 15K
27:37 | 8:53/mi
20K· 12.43 mi
1:50:35
Rank: #19853 (+206)
15K → 20K
27:45 | 8:56/mi
Half· 13.11 mi
1:56:19
Rank: #19725 (+128)
20K → Half
5:44 | 8:24/mi
25K· 15.53 mi
2:17:29
Rank: #19353 (+372)
Half → 25K
21:10 | 8:44/mi
30K· 18.64 mi
2:45:04
Rank: #18857 (+496)
25K → 30K
27:35 | 8:53/mi
20M
2:57:03
Rank: #18623 (+234)
30K → 20M
11:59 | 8:49/mi
21M
3:06:04
Rank: #18334 (+289)
20M → 21M
9:01 | 9:01/mi
35K· 21.75 mi
3:12:36
Rank: #18256 (+78)
21M → 35K
6:32 | 8:44/mi
23M
3:23:56
Rank: #18138 (+118)
35K → 23M
11:20 | 9:03/mi
24M
3:32:46
Rank: #18064 (+74)
23M → 24M
8:50 | 8:50/mi
40K· 24.85 mi
3:40:23
Rank: #17989 (+75)
24M → 40K
7:37 | 8:54/mi
25.2M
3:43:31
Rank: #17903 (+86)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:52:16
Rank: #17820 (+83)
25.2M → Finish
8:45 | 8:35/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:56:19
Pace8:52 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:57
Pace8:51 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5127:398:5427:39
8:54
-
10K
6.21 mi11:50:2555:138:5327:34
8:52
-0:02
15K
9.32 mi12:18:021:22:508:5327:37
8:53
+0:01
20K
12.43 mi12:45:471:50:358:5427:45
8:56
+0:03
Half
13.11 mi12:51:311:56:198:525:44
8:24
-0:32
25K
15.53 mi13:12:412:17:298:5121:10
8:44
+0:20
30K
18.64 mi13:40:162:45:048:5127:35
8:53
+0:09
20M
20.00 mi13:52:152:57:038:5111:59
8:49
-0:04
21M
21.00 mi14:01:163:06:048:529:01
9:01
+0:12
35K
21.75 mi14:07:483:12:368:516:32
8:44
-0:17
23M
23.00 mi14:19:083:23:568:5211:20
9:03
+0:19
24M
24.00 mi14:27:583:32:468:528:50
8:50
-0:13
40K
24.85 mi14:35:353:40:238:527:37
8:54
+0:04
25.2M
25.20 mi14:38:433:43:318:523:08
9:05
+0:11
Finish
26.22 mi14:47:283:52:168:528:45
8:35
-0:30

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

8:24 /mi

Average Pace

8:52 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:10

23% of race

Time at Steady Pace

2:58:06

77% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:52 /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 mi11:22:5127:398:5427:39
8:54
#19978
10K
6.21 mi11:50:2555:138:5327:34
8:52
#20124
15K
9.32 mi12:18:021:22:508:5327:37
8:53
#20059
20K
12.43 mi12:45:471:50:358:5427:45
8:56
#19853
Half
13.11 mi12:51:311:56:198:525:44
8:24
#19725
25K
15.53 mi13:12:412:17:298:5121:10
8:44
#19353
30K
18.64 mi13:40:162:45:048:5127:35
8:53
#18857
20M
20.00 mi13:52:152:57:038:5111:59
8:49
#18623
21M
21.00 mi14:01:163:06:048:529:01
9:01
#18334
35K
21.75 mi14:07:483:12:368:516:32
8:44
#18256
23M
23.00 mi14:19:083:23:568:5211:20
9:03
#18138
24M
24.00 mi14:27:583:32:468:528:50
8:50
#18064
40K
24.85 mi14:35:353:40:238:527:37
8:54
#17989
25.2M
25.20 mi14:38:433:43:318:523:08
9:05
#17903
Finish
26.22 mi14:47:283:52:168:528:45
8:35
#17820
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19978121511215119972(Top 75%)12278(Top 81%)12278(Top 1106%)
10K6.21 mi3.10 mi20124-14612267-11612267-11620288(Top 76%)12400(Top 82%)12400(Top 1117%)
15K9.32 mi3.11 mi20059+6512264+312264+319972(Top 75%)12278(Top 81%)12278(Top 1106%)
20K12.43 mi3.11 mi19853+20612203+6112203+6119365(Top 73%)12039(Top 79%)12039(Top 1085%)
Half13.11 mi0.68 mi19725+12812157+4612157+4617130(Top 64%)11139(Top 73%)11139(Top 1004%)
25K15.53 mi2.42 mi19353+37212002+15512002+15517531(Top 66%)11213(Top 74%)11213(Top 1010%)
30K18.64 mi3.11 mi18857+49611780+22211780+22216533(Top 62%)10706(Top 71%)10706(Top 965%)
20M20.00 mi1.36 mi18623+23411656+12411656+12415524(Top 58%)10223(Top 67%)10223(Top 921%)
21M21.00 mi1.00 mi18334+28911525+13111525+13113508(Top 51%)9286(Top 61%)9286(Top 837%)
35K21.75 mi0.75 mi18256+7811481+4411481+4416577(Top 62%)10529(Top 69%)10529(Top 949%)
23M23.00 mi1.25 mi18138+11811424+5711424+5716305(Top 61%)10374(Top 68%)10374(Top 935%)
24M24.00 mi1.00 mi18064+7411376+4811376+4816381(Top 62%)10350(Top 68%)10350(Top 932%)
40K24.85 mi0.85 mi17989+7511335+4111335+4115657(Top 59%)9983(Top 66%)9983(Top 899%)
25.2M25.20 mi0.35 mi17903+8611305+3011305+3012998(Top 49%)8778(Top 58%)8778(Top 791%)
Finish26.22 mi1.02 mi17820+8311257+4811257+4815899(Top 60%)10135(Top 67%)10135(Top 913%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

19972

Males

12278

M60-64

12278

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20288

Males

12400

M60-64

12400

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

19972

Males

12278

M60-64

12278

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

19365

Males

12039

M60-64

12039

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

17130

Males

11139

M60-64

11139

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

17531

Males

11213

M60-64

11213

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16533

Males

10706

M60-64

10706

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

15524

Males

10223

M60-64

10223

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13508

Males

9286

M60-64

9286

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

16577

Males

10529

M60-64

10529

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16305

Males

10374

M60-64

10374

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16381

Males

10350

M60-64

10350

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15657

Males

9983

M60-64

9983

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12998

Males

8778

M60-64

8778

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

15899

Males

10135

M60-64

10135

Passing Analysis

Category:
Athletes Passed
2874
Passed By
716
Net Change
+2158
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19978
5K → 10K236382-146#19978#20124
10K → 15K208143+65#20124#20059
15K → 20K27973+206#20059#19853
20K → Half1291+128#19853#19725
Half → 25K3797+372#19725#19353
25K → 30K50913+496#19353#18857
30K → 20M2406+234#18857#18623
20M → 21M2945+289#18623#18334
21M → 35K835+78#18334#18256
35K → 23M13820+118#18256#18138
23M → 24M10228+74#18138#18064
24M → 40K8813+75#18064#17989
40K → 25.2M871+86#17989#17903
25.2M → Finish10219+83#17903#17820
TOTALS2874716+2158
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing