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BOSTON MARATHON 2023

James Kulik

Bib: 32161•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Division (M18-39)
#0 / 5285
Top 42%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:01
Rank: #4289
Start → 5K
21:01 | 6:46/mi
10K· 6.21 mi
41:37
Rank: #3946 (+343)
5K → 10K
20:36 | 6:38/mi
15K· 9.32 mi
1:02:20
Rank: #3889 (+57)
10K → 15K
20:43 | 6:40/mi
20K· 12.43 mi
1:23:09
Rank: #3767 (+122)
15K → 20K
20:49 | 6:42/mi
Half· 13.11 mi
1:27:40
Rank: #3758 (+9)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:43:50
Rank: #3628 (+130)
Half → 25K
16:10 | 6:40/mi
30K· 18.64 mi
2:05:12
Rank: #3586 (+42)
25K → 30K
21:22 | 6:53/mi
20M
2:14:32
Rank: #3510 (+76)
30K → 20M
9:20 | 6:52/mi
21M
2:21:40
Rank: #3416 (+94)
20M → 21M
7:08 | 7:08/mi
35K· 21.75 mi
2:26:40
Rank: #3389 (+27)
21M → 35K
5:00 | 6:41/mi
23M
2:35:16
Rank: #3343 (+46)
35K → 23M
8:36 | 6:52/mi
24M
2:41:55
Rank: #3291 (+52)
23M → 24M
6:39 | 6:39/mi
40K· 24.85 mi
2:47:46
Rank: #3269 (+22)
24M → 40K
5:51 | 6:51/mi
25.2M
2:50:18
Rank: #3255 (+14)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:57:02
Rank: #3196 (+59)
25.2M → Finish
6:44 | 6:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:40
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:29:22
Pace6:49 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:2521:016:4621:01
6:46
-
10K
6.21 mi12:00:0141:376:4220:36
6:38
-0:08
15K
9.32 mi12:20:441:02:206:4120:43
6:40
+0:02
20K
12.43 mi12:41:331:23:096:4120:49
6:42
+0:02
Half
13.11 mi12:46:041:27:406:414:31
6:37
-0:05
25K
15.53 mi13:02:141:43:506:4116:10
6:40
+0:03
30K
18.64 mi13:23:362:05:126:4321:22
6:53
+0:13
20M
20.00 mi13:32:562:14:326:449:20
6:52
-0:01
21M
21.00 mi13:40:042:21:406:457:08
7:08
+0:16
35K
21.75 mi13:45:042:26:406:455:00
6:41
-0:27
23M
23.00 mi13:53:402:35:166:458:36
6:52
+0:11
24M
24.00 mi14:00:192:41:556:456:39
6:39
-0:13
40K
24.85 mi14:06:102:47:466:455:51
6:51
+0:12
25.2M
25.20 mi14:08:422:50:186:452:32
7:21
+0:30
Finish
26.22 mi14:15:262:57:026:456:44
6:36
-0:45

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

6:36 /mi

Average Pace

6:45 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:30

99% of race

Time at Steady Pace

2:32

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:45 /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 mi11:39:2521:016:4621:01
6:46
#4289
10K
6.21 mi12:00:0141:376:4220:36
6:38
#3946
15K
9.32 mi12:20:441:02:206:4120:43
6:40
#3889
20K
12.43 mi12:41:331:23:096:4120:49
6:42
#3767
Half
13.11 mi12:46:041:27:406:414:31
6:37
#3758
25K
15.53 mi13:02:141:43:506:4116:10
6:40
#3628
30K
18.64 mi13:23:362:05:126:4321:22
6:53
#3586
20M
20.00 mi13:32:562:14:326:449:20
6:52
#3510
21M
21.00 mi13:40:042:21:406:457:08
7:08
#3416
35K
21.75 mi13:45:042:26:406:455:00
6:41
#3389
23M
23.00 mi13:53:402:35:166:458:36
6:52
#3343
24M
24.00 mi14:00:192:41:556:456:39
6:39
#3291
40K
24.85 mi14:06:102:47:466:455:51
6:51
#3269
25.2M
25.20 mi14:08:422:50:186:452:32
7:21
#3255
Finish
26.22 mi14:15:262:57:026:456:44
6:36
#3196
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4289400740073818(Top 14%)3589(Top 24%)3589(Top 68%)
10K6.21 mi3.10 mi3946+3433715+2923715+2923717(Top 14%)3512(Top 23%)3512(Top 66%)
15K9.32 mi3.11 mi3889+573664+513664+513818(Top 14%)3589(Top 24%)3589(Top 68%)
20K12.43 mi3.11 mi3767+1223558+1063558+1063573(Top 13%)3380(Top 22%)3380(Top 64%)
Half13.11 mi0.68 mi3758+93552+63552+63559(Top 13%)3367(Top 22%)3367(Top 64%)
25K15.53 mi2.42 mi3628+1303433+1193433+1193118(Top 12%)2973(Top 20%)2973(Top 56%)
30K18.64 mi3.11 mi3586+423393+403393+403496(Top 13%)3287(Top 22%)3287(Top 62%)
20M20.00 mi1.36 mi3510+763320+733320+733216(Top 12%)3013(Top 20%)3013(Top 57%)
21M21.00 mi1.00 mi3416+943236+843236+842768(Top 10%)2602(Top 17%)2602(Top 49%)
35K21.75 mi0.75 mi3389+273208+283208+283440(Top 13%)3192(Top 21%)3192(Top 60%)
23M23.00 mi1.25 mi3343+463166+423166+423041(Top 11%)2836(Top 19%)2836(Top 54%)
24M24.00 mi1.00 mi3291+523117+493117+492830(Top 11%)2631(Top 17%)2631(Top 50%)
40K24.85 mi0.85 mi3269+223093+243093+243023(Top 11%)2781(Top 18%)2781(Top 53%)
25.2M25.20 mi0.35 mi3255+143079+143079+143132(Top 12%)2855(Top 19%)2855(Top 54%)
Finish26.22 mi1.02 mi3196+593024+553024+553013(Top 11%)2722(Top 18%)2722(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3818

Males

3589

M18-39

3589

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3717

Males

3512

M18-39

3512

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3818

Males

3589

M18-39

3589

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3573

Males

3380

M18-39

3380

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3559

Males

3367

M18-39

3367

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3118

Males

2973

M18-39

2973

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3496

Males

3287

M18-39

3287

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3216

Males

3013

M18-39

3013

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2768

Males

2602

M18-39

2602

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3440

Males

3192

M18-39

3192

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3041

Males

2836

M18-39

2836

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2830

Males

2631

M18-39

2631

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3023

Males

2781

M18-39

2781

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3132

Males

2855

M18-39

2855

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3013

Males

2722

M18-39

2722

Passing Analysis

Category:
Athletes Passed
1608
Passed By
515
Net Change
+1093
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4289
5K → 10K44198+343#4289#3946
10K → 15K14790+57#3946#3889
15K → 20K17452+122#3889#3767
20K → Half2516+9#3767#3758
Half → 25K15020+130#3758#3628
25K → 30K12785+42#3628#3586
30K → 20M9822+76#3586#3510
20M → 21M11016+94#3510#3416
21M → 35K4518+27#3416#3389
35K → 23M7327+46#3389#3343
23M → 24M6917+52#3343#3291
24M → 40K4725+22#3291#3269
40K → 25.2M2814+14#3269#3255
25.2M → Finish7415+59#3255#3196
TOTALS1608515+1093
📊

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