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BOSTON MARATHON 2023

John Gureckis

Bib: 26466•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:18
Rank: #20893
Start → 5K
28:18 | 9:07/mi
10K· 6.21 mi
55:24
Rank: #20282 (+611)
5K → 10K
27:06 | 8:43/mi
15K· 9.32 mi
1:23:11
Rank: #20236 (+46)
10K → 15K
27:47 | 8:57/mi
20K· 12.43 mi
1:51:32
Rank: #20236
15K → 20K
28:21 | 9:07/mi
Half· 13.11 mi
1:57:12
Rank: #20078 (+158)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:18:52
Rank: #19830 (+248)
Half → 25K
21:40 | 8:56/mi
30K· 18.64 mi
2:48:00
Rank: #19645 (+185)
25K → 30K
29:08 | 9:23/mi
20M
3:00:47
Rank: #19546 (+99)
30K → 20M
12:47 | 9:24/mi
21M
3:10:37
Rank: #19398 (+148)
20M → 21M
9:50 | 9:50/mi
35K· 21.75 mi
3:17:23
Rank: #19349 (+49)
21M → 35K
6:46 | 9:03/mi
23M
3:28:59
Rank: #19237 (+112)
35K → 23M
11:36 | 9:16/mi
24M
3:37:53
Rank: #19123 (+114)
23M → 24M
8:54 | 8:54/mi
40K· 24.85 mi
3:45:35
Rank: #19022 (+101)
24M → 40K
7:42 | 9:00/mi
25.2M
3:48:54
Rank: #18973 (+49)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:57:28
Rank: #18856 (+117)
25.2M → Finish
8:34 | 8:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:12
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:00:16
Pace9:10 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5128:189:0728:18
9:07
-
10K
6.21 mi12:11:5755:248:5527:06
8:43
-0:24
15K
9.32 mi12:39:441:23:118:5527:47
8:57
+0:14
20K
12.43 mi13:08:051:51:328:5828:21
9:07
+0:10
Half
13.11 mi13:13:451:57:128:565:40
8:18
-0:49
25K
15.53 mi13:35:252:18:528:5621:40
8:56
+0:38
30K
18.64 mi14:04:332:48:009:0129:08
9:23
+0:27
20M
20.00 mi14:17:203:00:479:0212:47
9:24
+0:01
21M
21.00 mi14:27:103:10:379:059:50
9:50
+0:26
35K
21.75 mi14:33:563:17:239:056:46
9:03
-0:47
23M
23.00 mi14:45:323:28:599:0511:36
9:16
+0:13
24M
24.00 mi14:54:263:37:539:058:54
8:54
-0:22
40K
24.85 mi15:02:083:45:359:057:42
9:00
+0:06
25.2M
25.20 mi15:05:273:48:549:053:19
9:37
+0:37
Finish
26.22 mi15:14:013:57:289:048:34
8:24
-1:13

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

8:18 /mi

Average Pace

9:04 /mi

Slowest Pace

9:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:48

72% of race

Time at Steady Pace

56:50

24% of race

Time at Slower Pace

9:50

4% of race

Average Pace: 9:03 /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 mi11:44:5128:189:0728:18
9:07
#20893
10K
6.21 mi12:11:5755:248:5527:06
8:43
#20282
15K
9.32 mi12:39:441:23:118:5527:47
8:57
#20236
20K
12.43 mi13:08:051:51:328:5828:21
9:07
#20236
Half
13.11 mi13:13:451:57:128:565:40
8:18
#20078
25K
15.53 mi13:35:252:18:528:5621:40
8:56
#19830
30K
18.64 mi14:04:332:48:009:0129:08
9:23
#19645
20M
20.00 mi14:17:203:00:479:0212:47
9:24
#19546
21M
21.00 mi14:27:103:10:379:059:50
9:50
#19398
35K
21.75 mi14:33:563:17:239:056:46
9:03
#19349
23M
23.00 mi14:45:323:28:599:0511:36
9:16
#19237
24M
24.00 mi14:54:263:37:539:058:54
8:54
#19123
40K
24.85 mi15:02:083:45:359:057:42
9:00
#19022
25.2M
25.20 mi15:05:273:48:549:053:19
9:37
#18973
Finish
26.22 mi15:14:013:57:289:048:34
8:24
#18856
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi20893125551255520221(Top 76%)12407(Top 82%)12407(Top 554%)
10K6.21 mi3.10 mi20282+61112353+20212353+20219544(Top 73%)12106(Top 80%)12106(Top 540%)
15K9.32 mi3.11 mi20236+4612347+612347+620221(Top 76%)12407(Top 82%)12407(Top 554%)
20K12.43 mi3.11 mi2023612363-1612363-1620247(Top 76%)12413(Top 82%)12413(Top 554%)
Half13.11 mi0.68 mi20078+15812298+6512298+6516500(Top 62%)10892(Top 72%)10892(Top 486%)
25K15.53 mi2.42 mi19830+24812185+11312185+11318635(Top 70%)11689(Top 77%)11689(Top 522%)
30K18.64 mi3.11 mi19645+18512111+7412111+7418928(Top 71%)11751(Top 77%)11751(Top 524%)
20M20.00 mi1.36 mi19546+9912049+6212049+6218476(Top 69%)11443(Top 75%)11443(Top 511%)
21M21.00 mi1.00 mi19398+14811976+7311976+7317371(Top 65%)10942(Top 72%)10942(Top 488%)
35K21.75 mi0.75 mi19349+4911950+2611950+2618073(Top 68%)11175(Top 74%)11175(Top 499%)
23M23.00 mi1.25 mi19237+11211902+4811902+4817355(Top 65%)10860(Top 72%)10860(Top 485%)
24M24.00 mi1.00 mi19123+11411837+6511837+6516762(Top 63%)10517(Top 69%)10517(Top 469%)
40K24.85 mi0.85 mi19022+10111790+4711790+4716158(Top 61%)10202(Top 67%)10202(Top 455%)
25.2M25.20 mi0.35 mi18973+4911763+2711763+2715725(Top 59%)10013(Top 66%)10013(Top 447%)
Finish26.22 mi1.02 mi18856+11711708+5511708+5514782(Top 56%)9633(Top 63%)9633(Top 430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20221

Males

12407

M40-44

12407

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

19544

Males

12106

M40-44

12106

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20221

Males

12407

M40-44

12407

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20247

Males

12413

M40-44

12413

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16500

Males

10892

M40-44

10892

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

18635

Males

11689

M40-44

11689

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

18928

Males

11751

M40-44

11751

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

18476

Males

11443

M40-44

11443

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17371

Males

10942

M40-44

10942

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

18073

Males

11175

M40-44

11175

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

17355

Males

10860

M40-44

10860

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16762

Males

10517

M40-44

10517

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16158

Males

10202

M40-44

10202

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15725

Males

10013

M40-44

10013

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14782

Males

9633

M40-44

9633

Passing Analysis

Category:
Athletes Passed
2703
Passed By
666
Net Change
+2037
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20893
5K → 10K725114+611#20893#20282
10K → 15K207161+46#20282#20236
15K → 20K1691690#20236#20236
20K → Half1591+158#20236#20078
Half → 25K27426+248#20078#19830
25K → 30K26378+185#19830#19645
30K → 20M13334+99#19645#19546
20M → 21M16416+148#19546#19398
21M → 35K6213+49#19398#19349
35K → 23M13422+112#19349#19237
23M → 24M12713+114#19237#19123
24M → 40K1076+101#19123#19022
40K → 25.2M545+49#19022#18973
25.2M → Finish1258+117#18973#18856
TOTALS2703666+2037
📊

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