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BOSTON MARATHON 2023

Edmund Jakubowski

Bib: 30066•M

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:42/mi
33:16
↑ 97↓ 3451.5%
10K· 6.21 mi
9:54/mi
1:04:02
↑ 79↓ 1380.4%
15K· 9.32 mi
9:28/mi
1:33:28
↑ 67↓ 78
20K· 12.43 mi
9:48/mi
2:03:54
↑ 106↓ 860.1%
Half· 13.11 mi
9:52/mi
2:10:38
↑ 19↓ 370.5%
25K· 15.53 mi
10:18/mi
2:35:36
↑ 66↓ 880.2%
30K· 18.64 mi
11:39/mi
3:11:47
↑ 181↓ 1480.2%
20M
12:59/mi
3:29:26
↑ 64↓ 500.2%
21M
14:42/mi
3:44:08
↑ 106↓ 241.6%
35K· 21.75 mi
13:39/mi
3:54:21
↑ 17↓ 861.7%
23M
14:31/mi
4:12:32
↑ 23↓ 630.6%
24M
13:33/mi
4:26:05
↓ 821.3%
40K· 24.85 mi
14:15/mi
4:38:16
↓ 200.3%
25.2M
13:38/mi
4:42:58
↑ 13↓ 160.2%
Finish· 26.22 mi
12:22/mi
4:55:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:38
Pace9:58 /mi
2nd Half
Distance13.11 mi
Time2:44:56
Pace12:35 /mi
📊Positive Split: 26.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:4833:1610:4233:16
10:42
-
10K
6.21 mi12:22:341:04:0210:1830:46
9:54
-0:48
15K
9.32 mi12:52:001:33:2810:0229:26
9:28
-0:26
20K
12.43 mi13:22:262:03:549:5830:26
9:48
+0:20
Half
13.11 mi13:29:102:10:389:586:44
9:52
+0:04
25K
15.53 mi13:54:082:35:3610:0124:58
10:18
+0:26
30K
18.64 mi14:30:193:11:4710:1736:11
11:39
+1:21
20M
20.00 mi14:47:583:29:2610:2817:39
12:59
+1:20
21M
21.00 mi15:02:403:44:0810:4014:42
14:42
+1:43
35K
21.75 mi15:12:533:54:2110:4710:13
13:39
-1:03
23M
23.00 mi15:31:044:12:3210:5918:11
14:31
+0:52
24M
24.00 mi15:44:374:26:0511:0513:33
13:33
-0:58
40K
24.85 mi15:56:484:38:1611:1212:11
14:15
+0:42
25.2M
25.20 mi16:01:304:42:5811:144:42
13:38
-0:37
Finish
26.22 mi16:14:064:55:3411:1712:36
12:22
-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

9:28 /mi

Average Pace

11:17 /mi

Slowest Pace

14:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:36

53% of race

Time at Steady Pace

1:06:26

22% of race

Time at Slower Pace

1:13:32

25% of race

Average Pace: 11:16 /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 mi11:51:4833:1610:4233:16
10:42
#25195
10K
6.21 mi12:22:341:04:0210:1830:46
9:54
#24280
15K
9.32 mi12:52:001:33:2810:0229:26
9:28
#23665
20K
12.43 mi13:22:262:03:549:5830:26
9:48
#23361
Half
13.11 mi13:29:102:10:389:586:44
9:52
#23342
25K
15.53 mi13:54:082:35:3610:0124:58
10:18
#23235
30K
18.64 mi14:30:193:11:4710:1736:11
11:39
#23413
20M
20.00 mi14:47:583:29:2610:2817:39
12:59
#23590
21M
21.00 mi15:02:403:44:0810:4014:42
14:42
#23814
35K
21.75 mi15:12:533:54:2110:4710:13
13:39
#23970
23M
23.00 mi15:31:044:12:3210:5918:11
14:31
#24198
24M
24.00 mi15:44:374:26:0511:0513:33
13:33
#24316
40K
24.85 mi15:56:484:38:1611:1212:11
14:15
#24446
25.2M
25.20 mi16:01:304:42:5811:144:42
13:38
#24454
Finish
26.22 mi16:14:064:55:3411:1712:36
12:22
#24541
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25195146311463122174(Top 83%)13264(Top 87%)13264(Top 251%)
10K6.21 mi3.10 mi24280+91514216+41514216+41523490(Top 88%)13851(Top 91%)13851(Top 262%)
15K9.32 mi3.11 mi23665+61513934+28213934+28222174(Top 83%)13264(Top 87%)13264(Top 251%)
20K12.43 mi3.11 mi23361+30413805+12913805+12922395(Top 84%)13354(Top 88%)13354(Top 253%)
Half13.11 mi0.68 mi23342+1913794+1113794+1123022(Top 86%)13644(Top 90%)13644(Top 258%)
25K15.53 mi2.42 mi23235+10713741+5313741+5322830(Top 86%)13520(Top 89%)13520(Top 256%)
30K18.64 mi3.11 mi23413-17813796-5513796-5524053(Top 90%)13993(Top 92%)13993(Top 265%)
20M20.00 mi1.36 mi23590-17713862-6613862-6625154(Top 94%)14458(Top 95%)14458(Top 274%)
21M21.00 mi1.00 mi23814-22413959-9713959-9725557(Top 96%)14649(Top 97%)14649(Top 277%)
35K21.75 mi0.75 mi23970-15614017-5814017-5825983(Top 98%)14834(Top 98%)14834(Top 281%)
23M23.00 mi1.25 mi24198-22814103-8614103-8626127(Top 98%)14905(Top 98%)14905(Top 282%)
24M24.00 mi1.00 mi24316-11814154-5114154-5125830(Top 97%)14720(Top 97%)14720(Top 279%)
40K24.85 mi0.85 mi24446-13014207-5314207-5325821(Top 97%)14710(Top 97%)14710(Top 278%)
25.2M25.20 mi0.35 mi24454-814206+114206+124646(Top 93%)14113(Top 93%)14113(Top 267%)
Finish26.22 mi1.02 mi24541-8714234-2814234-2825569(Top 96%)14589(Top 96%)14589(Top 276%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22174

Males

13264

M18-39

13264

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23490

Males

13851

M18-39

13851

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22174

Males

13264

M18-39

13264

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22395

Males

13354

M18-39

13354

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

23022

Males

13644

M18-39

13644

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

22830

Males

13520

M18-39

13520

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

24053

Males

13993

M18-39

13993

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

25154

Males

14458

M18-39

14458

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

25557

Males

14649

M18-39

14649

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

25983

Males

14834

M18-39

14834

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

26127

Males

14905

M18-39

14905

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25830

Males

14720

M18-39

14720

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25821

Males

14710

M18-39

14710

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24646

Males

14113

M18-39

14113

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

25569

Males

14589

M18-39

14589

Passing Analysis

Category:
Athletes Passed
2159
Passed By
1505
Net Change
+654
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25195
5K → 10K9205+915#25195#24280
10K → 15K6161+615#24280#23665
15K → 20K32218+304#23665#23361
20K → Half3213+19#23361#23342
Half → 25K15447+107#23342#23235
25K → 30K62240-178#23235#23413
30K → 20M16193-177#23413#23590
20M → 21M7231-224#23590#23814
21M → 35K1157-156#23814#23970
35K → 23M5233-228#23970#24198
23M → 24M7125-118#24198#24316
24M → 40K4134-130#24316#24446
40K → 25.2M816-8#24446#24454
25.2M → Finish592-87#24454#24541
TOTALS21591505+654
📊

Passing Visuals

Category:
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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