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BOSTON MARATHON 2023

Jeremy Zglobicki

Bib: 3877•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Division (M18-39)
#0 / 5285
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:44
Rank: #3404
Start → 5K
20:44 | 6:40/mi
10K· 6.21 mi
40:59
Rank: #3128 (+276)
5K → 10K
20:15 | 6:31/mi
15K· 9.32 mi
1:01:02
Rank: #2811 (+317)
10K → 15K
20:03 | 6:27/mi
20K· 12.43 mi
1:22:18
Rank: #3232 (-421)
15K → 20K
21:16 | 6:51/mi
Half· 13.11 mi
1:26:39
Rank: #3150 (+82)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:42:27
Rank: #2955 (+195)
Half → 25K
15:48 | 6:31/mi
30K· 18.64 mi
2:03:33
Rank: #2893 (+62)
25K → 30K
21:06 | 6:47/mi
20M
2:12:37
Rank: #2816 (+77)
30K → 20M
9:04 | 6:40/mi
21M
2:19:36
Rank: #2727 (+89)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:24:24
Rank: #2675 (+52)
21M → 35K
4:48 | 6:25/mi
23M
2:32:33
Rank: #2537 (+138)
35K → 23M
8:09 | 6:31/mi
24M
2:39:09
Rank: #2515 (+22)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:44:43
Rank: #2454 (+61)
24M → 40K
5:34 | 6:31/mi
25.2M
2:47:07
Rank: #2422 (+32)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:53:31
Rank: #2367 (+55)
25.2M → Finish
6:24 | 6:17/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:26:39
Pace6:37 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:52
Pace6:38 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5920:446:4020:44
6:40
-
10K
6.21 mi10:42:1440:596:3620:15
6:31
-0:09
15K
9.32 mi11:02:171:01:026:3320:03
6:27
-0:04
20K
12.43 mi11:23:331:22:186:3721:16
6:51
+0:24
Half
13.11 mi11:27:541:26:396:374:21
6:23
-0:28
25K
15.53 mi11:43:421:42:276:3615:48
6:31
+0:08
30K
18.64 mi12:04:482:03:336:3821:06
6:47
+0:16
20M
20.00 mi12:13:522:12:376:389:04
6:40
-0:07
21M
21.00 mi12:20:512:19:366:396:59
6:59
+0:19
35K
21.75 mi12:25:392:24:246:384:48
6:25
-0:34
23M
23.00 mi12:33:482:32:336:388:09
6:31
+0:06
24M
24.00 mi12:40:242:39:096:386:36
6:36
+0:05
40K
24.85 mi12:45:582:44:436:385:34
6:31
-0:05
25.2M
25.20 mi12:48:222:47:076:382:24
6:58
+0:27
Finish
26.22 mi12:54:462:53:316:376:24
6:17
-0:41

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

6:17 /mi

Average Pace

6:37 /mi

Slowest Pace

6:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:08

95% of race

Time at Steady Pace

9:23

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:21:5920:446:4020:44
6:40
#3404
10K
6.21 mi10:42:1440:596:3620:15
6:31
#3128
15K
9.32 mi11:02:171:01:026:3320:03
6:27
#2811
20K
12.43 mi11:23:331:22:186:3721:16
6:51
#3232
Half
13.11 mi11:27:541:26:396:374:21
6:23
#3150
25K
15.53 mi11:43:421:42:276:3615:48
6:31
#2955
30K
18.64 mi12:04:482:03:336:3821:06
6:47
#2893
20M
20.00 mi12:13:522:12:376:389:04
6:40
#2816
21M
21.00 mi12:20:512:19:366:396:59
6:59
#2727
35K
21.75 mi12:25:392:24:246:384:48
6:25
#2675
23M
23.00 mi12:33:482:32:336:388:09
6:31
#2537
24M
24.00 mi12:40:242:39:096:386:36
6:36
#2515
40K
24.85 mi12:45:582:44:436:385:34
6:31
#2454
25.2M
25.20 mi12:48:222:47:076:382:24
6:58
#2422
Finish
26.22 mi12:54:462:53:316:376:24
6:17
#2367
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3404320732072379(Top 9%)2283(Top 15%)2283(Top 43%)
10K6.21 mi3.10 mi3128+2762970+2372970+2372902(Top 11%)2772(Top 18%)2772(Top 52%)
15K9.32 mi3.11 mi2811+3172683+2872683+2872379(Top 9%)2283(Top 15%)2283(Top 43%)
20K12.43 mi3.11 mi3232-4213074-3913074-3914838(Top 18%)4490(Top 30%)4490(Top 85%)
Half13.11 mi0.68 mi3150+823000+743000+742126(Top 8%)2042(Top 13%)2042(Top 39%)
25K15.53 mi2.42 mi2955+1952822+1782822+1782247(Top 8%)2155(Top 14%)2155(Top 41%)
30K18.64 mi3.11 mi2893+622767+552767+552911(Top 11%)2756(Top 18%)2756(Top 52%)
20M20.00 mi1.36 mi2816+772692+752692+752161(Top 8%)2056(Top 14%)2056(Top 39%)
21M21.00 mi1.00 mi2727+892606+862606+862081(Top 8%)1967(Top 13%)1967(Top 37%)
35K21.75 mi0.75 mi2675+522558+482558+482040(Top 8%)1938(Top 13%)1938(Top 37%)
23M23.00 mi1.25 mi2537+1382425+1332425+1331466(Top 6%)1393(Top 9%)1393(Top 26%)
24M24.00 mi1.00 mi2515+222405+202405+202545(Top 10%)2373(Top 16%)2373(Top 45%)
40K24.85 mi0.85 mi2454+612345+602345+601579(Top 6%)1489(Top 10%)1489(Top 28%)
25.2M25.20 mi0.35 mi2422+322314+312314+311633(Top 6%)1539(Top 10%)1539(Top 29%)
Finish26.22 mi1.02 mi2367+552263+512263+511549(Top 6%)1464(Top 10%)1464(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2379

Males

2283

M18-39

2283

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2902

Males

2772

M18-39

2772

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2379

Males

2283

M18-39

2283

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4838

Males

4490

M18-39

4490

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2126

Males

2042

M18-39

2042

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2247

Males

2155

M18-39

2155

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2911

Males

2756

M18-39

2756

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2161

Males

2056

M18-39

2056

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2081

Males

1967

M18-39

1967

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2040

Males

1938

M18-39

1938

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1466

Males

1393

M18-39

1393

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2545

Males

2373

M18-39

2373

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1579

Males

1489

M18-39

1489

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1633

Males

1539

M18-39

1539

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1549

Males

1464

M18-39

1464

Passing Analysis

Category:
Athletes Passed
1637
Passed By
600
Net Change
+1037
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3404
5K → 10K33357+276#3404#3128
10K → 15K3247+317#3128#2811
15K → 20K11432-421#2811#3232
20K → Half853+82#3232#3150
Half → 25K1972+195#3150#2955
25K → 30K10846+62#2955#2893
30K → 20M814+77#2893#2816
20M → 21M989+89#2816#2727
21M → 35K553+52#2727#2675
35K → 23M1435+138#2675#2537
23M → 24M3917+22#2537#2515
24M → 40K676+61#2515#2454
40K → 25.2M331+32#2454#2422
25.2M → Finish638+55#2422#2367
TOTALS1637600+1037
📊

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