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BOSTON MARATHON 2023

Daniel Lyszczak

Bib: 25269•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
9:04/mi
28:09
↑ 97↓ 3451.5%
10K· 6.21 mi
8:11/mi
53:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:18:37
↑ 67↓ 78
20K· 12.43 mi
8:01/mi
1:43:32
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:48:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:08:38
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:34:08
↑ 181↓ 1480.2%
20M
8:09/mi
2:45:12
↑ 64↓ 500.2%
21M
8:37/mi
2:53:49
↑ 106↓ 241.6%
35K· 21.75 mi
7:48/mi
2:59:39
↑ 17↓ 861.7%
23M
9:13/mi
3:11:11
↑ 23↓ 630.6%
24M
7:57/mi
3:19:08
↓ 821.3%
40K· 24.85 mi
8:24/mi
3:26:19
↓ 200.3%
25.2M
9:34/mi
3:29:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:30/mi
3:38:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:48:54
Pace8:18 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:49:23
Pace8:21 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2428:099:0428:09
9:04
-
10K
6.21 mi12:15:5053:358:3725:26
8:11
-0:53
15K
9.32 mi12:40:521:18:378:2625:02
8:03
-0:08
20K
12.43 mi13:05:471:43:328:2024:55
8:01
-0:02
Half
13.11 mi13:11:091:48:548:185:22
7:52
-0:09
25K
15.53 mi13:30:532:08:388:1719:44
8:08
+0:16
30K
18.64 mi13:56:232:34:088:1625:30
8:12
+0:04
20M
20.00 mi14:07:272:45:128:1611:04
8:09
-0:03
21M
21.00 mi14:16:042:53:498:178:37
8:37
+0:28
35K
21.75 mi14:21:542:59:398:165:50
7:48
-0:49
23M
23.00 mi14:33:263:11:118:1911:32
9:13
+1:25
24M
24.00 mi14:41:233:19:088:187:57
7:57
-1:16
40K
24.85 mi14:48:343:26:198:187:11
8:24
+0:27
25.2M
25.20 mi14:51:523:29:378:193:18
9:34
+1:10
Finish
26.22 mi15:00:323:38:178:208:40
8:30
-1:04

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

7:48 /mi

Average Pace

8:20 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

11:12

5% of race

Time at Steady Pace

2:26:49

67% of race

Time at Slower Pace

1:00:16

28% of race

Average Pace: 8:20 /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 mi11:50:2428:099:0428:09
9:04
#20693
10K
6.21 mi12:15:5053:358:3725:26
8:11
#18644
15K
9.32 mi12:40:521:18:378:2625:02
8:03
#17420
20K
12.43 mi13:05:471:43:328:2024:55
8:01
#16494
Half
13.11 mi13:11:091:48:548:185:22
7:52
#16345
25K
15.53 mi13:30:532:08:388:1719:44
8:08
#15901
30K
18.64 mi13:56:232:34:088:1625:30
8:12
#15243
20M
20.00 mi14:07:272:45:128:1611:04
8:09
#14961
21M
21.00 mi14:16:042:53:498:178:37
8:37
#14743
35K
21.75 mi14:21:542:59:398:165:50
7:48
#14587
23M
23.00 mi14:33:263:11:118:1911:32
9:13
#14757
24M
24.00 mi14:41:233:19:088:187:57
7:57
#14554
40K
24.85 mi14:48:343:26:198:187:11
8:24
#14483
25.2M
25.20 mi14:51:523:29:378:193:18
9:34
#14486
Finish
26.22 mi15:00:323:38:178:208:40
8:30
#14493
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20693124531245314855(Top 56%)10237(Top 67%)10237(Top 194%)
10K6.21 mi3.10 mi18644+204911714+73911714+73916138(Top 61%)10759(Top 71%)10759(Top 204%)
15K9.32 mi3.11 mi17420+122411230+48411230+48414855(Top 56%)10237(Top 67%)10237(Top 194%)
20K12.43 mi3.11 mi16494+92610867+36310867+36313597(Top 51%)9710(Top 64%)9710(Top 184%)
Half13.11 mi0.68 mi16345+14910803+6410803+6413281(Top 50%)9611(Top 63%)9611(Top 182%)
25K15.53 mi2.42 mi15901+44410605+19810605+19813778(Top 52%)9677(Top 64%)9677(Top 183%)
30K18.64 mi3.11 mi15243+65810316+28910316+28912391(Top 47%)8971(Top 59%)8971(Top 170%)
20M20.00 mi1.36 mi14961+28210196+12010196+12011302(Top 42%)8409(Top 55%)8409(Top 159%)
21M21.00 mi1.00 mi14743+21810089+10710089+10711152(Top 42%)8201(Top 54%)8201(Top 155%)
35K21.75 mi0.75 mi14587+15610013+7610013+7610637(Top 40%)7952(Top 52%)7952(Top 150%)
23M23.00 mi1.25 mi14757-17010050-3710050-3717094(Top 64%)10729(Top 71%)10729(Top 203%)
24M24.00 mi1.00 mi14554+2039953+979953+9710877(Top 41%)7850(Top 52%)7850(Top 149%)
40K24.85 mi0.85 mi14483+719899+549899+5412702(Top 48%)8637(Top 57%)8637(Top 163%)
25.2M25.20 mi0.35 mi14486-39889+109889+1015450(Top 58%)9871(Top 65%)9871(Top 187%)
Finish26.22 mi1.02 mi14493-79880+99880+915431(Top 58%)9916(Top 65%)9916(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14855

Males

10237

M18-39

10237

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

16138

Males

10759

M18-39

10759

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14855

Males

10237

M18-39

10237

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

13597

Males

9710

M18-39

9710

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

13281

Males

9611

M18-39

9611

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13778

Males

9677

M18-39

9677

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12391

Males

8971

M18-39

8971

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11302

Males

8409

M18-39

8409

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11152

Males

8201

M18-39

8201

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10637

Males

7952

M18-39

7952

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17094

Males

10729

M18-39

10729

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10877

Males

7850

M18-39

7850

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12702

Males

8637

M18-39

8637

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15450

Males

9871

M18-39

9871

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15431

Males

9916

M18-39

9916

Passing Analysis

Category:
Athletes Passed
6580
Passed By
380
Net Change
+6200
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20693
5K → 10K207021+2049#20693#18644
10K → 15K12273+1224#18644#17420
15K → 20K9304+926#17420#16494
20K → Half1501+149#16494#16345
Half → 25K4506+444#16345#15901
25K → 30K6591+658#15901#15243
30K → 20M2853+282#15243#14961
20M → 21M2268+218#14961#14743
21M → 35K1571+156#14743#14587
35K → 23M39209-170#14587#14757
23M → 24M2041+203#14757#14554
24M → 40K9827+71#14554#14483
40K → 25.2M2427-3#14483#14486
25.2M → Finish6168-7#14486#14493
TOTALS6580380+6200
📊

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