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BOSTON MARATHON 2023

Alexander Mazik

Bib: 27107•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
9:23/mi
29:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:33/mi
55:43
↑ 79↓ 1380.4%
15K· 9.32 mi
8:37/mi
1:22:28
↑ 67↓ 78
20K· 12.43 mi
8:23/mi
1:48:31
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:54:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:39/mi
2:15:14
↑ 66↓ 880.2%
30K· 18.64 mi
8:55/mi
2:42:56
↑ 181↓ 1480.2%
20M
8:58/mi
2:55:07
↑ 64↓ 500.2%
21M
9:44/mi
3:04:51
↑ 106↓ 241.6%
35K· 21.75 mi
8:49/mi
3:11:27
↑ 17↓ 861.7%
23M
9:17/mi
3:23:04
↑ 23↓ 630.6%
24M
9:57/mi
3:33:01
↓ 821.3%
40K· 24.85 mi
11:24/mi
3:42:46
↓ 200.3%
25.2M
16:06/mi
3:48:19
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:57:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:15
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:02:47
Pace9:22 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:2329:089:2329:08
9:23
-
10K
6.21 mi12:14:5855:438:5826:35
8:33
-0:50
15K
9.32 mi12:41:431:22:288:5126:45
8:37
+0:04
20K
12.43 mi13:07:461:48:318:4426:03
8:23
-0:14
Half
13.11 mi13:13:301:54:158:435:44
8:24
+0:01
25K
15.53 mi13:34:292:15:148:4220:59
8:39
+0:15
30K
18.64 mi14:02:112:42:568:4427:42
8:55
+0:16
20M
20.00 mi14:14:222:55:078:4512:11
8:58
+0:03
21M
21.00 mi14:24:063:04:518:489:44
9:44
+0:46
35K
21.75 mi14:30:423:11:278:486:36
8:49
-0:55
23M
23.00 mi14:42:193:23:048:5011:37
9:17
+0:28
24M
24.00 mi14:52:163:33:018:539:57
9:57
+0:40
40K
24.85 mi15:02:013:42:468:589:45
11:24
+1:27
25.2M
25.20 mi15:07:343:48:199:045:33
16:06
+4:42
Finish
26.22 mi15:16:173:57:029:038:43
8:33
-7:33

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

8:23 /mi

Average Pace

9:03 /mi

Slowest Pace

16:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:31:47

89% of race

Time at Slower Pace

25:15

11% of race

Average Pace: 9:02 /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 mi11:48:2329:089:2329:08
9:23
#21739
10K
6.21 mi12:14:5855:438:5826:35
8:33
#20500
15K
9.32 mi12:41:431:22:288:5126:45
8:37
#19848
20K
12.43 mi13:07:461:48:318:4426:03
8:23
#18967
Half
13.11 mi13:13:301:54:158:435:44
8:24
#18879
25K
15.53 mi13:34:292:15:148:4220:59
8:39
#18603
30K
18.64 mi14:02:112:42:568:4427:42
8:55
#18218
20M
20.00 mi14:14:222:55:078:4512:11
8:58
#18072
21M
21.00 mi14:24:063:04:518:489:44
9:44
#17983
35K
21.75 mi14:30:423:11:278:486:36
8:49
#17964
23M
23.00 mi14:42:193:23:048:5011:37
9:17
#17940
24M
24.00 mi14:52:163:33:018:539:57
9:57
#18128
40K
24.85 mi15:02:013:42:468:589:45
11:24
#18466
25.2M
25.20 mi15:07:343:48:199:045:33
16:06
#18862
Finish
26.22 mi15:16:173:57:029:038:43
8:33
#18779
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21739129561295618508(Top 70%)11685(Top 77%)11685(Top 221%)
10K6.21 mi3.10 mi20500+123912445+51112445+51118592(Top 70%)11744(Top 77%)11744(Top 222%)
15K9.32 mi3.11 mi19848+65212177+26812177+26818508(Top 70%)11685(Top 77%)11685(Top 221%)
20K12.43 mi3.11 mi18967+88111846+33111846+33116157(Top 61%)10695(Top 70%)10695(Top 202%)
Half13.11 mi0.68 mi18879+8811809+3711809+3717140(Top 64%)11149(Top 73%)11149(Top 211%)
25K15.53 mi2.42 mi18603+27611687+12211687+12217130(Top 64%)11036(Top 73%)11036(Top 209%)
30K18.64 mi3.11 mi18218+38511499+18811499+18816737(Top 63%)10805(Top 71%)10805(Top 204%)
20M20.00 mi1.36 mi18072+14611422+7711422+7716348(Top 61%)10554(Top 70%)10554(Top 200%)
21M21.00 mi1.00 mi17983+8911379+4311379+4316971(Top 64%)10783(Top 71%)10783(Top 204%)
35K21.75 mi0.75 mi17964+1911371+811371+817039(Top 64%)10731(Top 71%)10731(Top 203%)
23M23.00 mi1.25 mi17940+2411340+3111340+3117406(Top 65%)10882(Top 72%)10882(Top 206%)
24M24.00 mi1.00 mi18128-18811402-6211402-6220632(Top 77%)12263(Top 81%)12263(Top 232%)
40K24.85 mi0.85 mi18466-33811545-14311545-14323055(Top 87%)13343(Top 88%)13343(Top 252%)
25.2M25.20 mi0.35 mi18862-39611711-16611711-16626138(Top 98%)14886(Top 98%)14886(Top 282%)
Finish26.22 mi1.02 mi18779+8311663+4811663+4815728(Top 59%)10057(Top 66%)10057(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18508

Males

11685

M18-39

11685

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18592

Males

11744

M18-39

11744

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18508

Males

11685

M18-39

11685

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

16157

Males

10695

M18-39

10695

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

17140

Males

11149

M18-39

11149

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

17130

Males

11036

M18-39

11036

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16737

Males

10805

M18-39

10805

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16348

Males

10554

M18-39

10554

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

16971

Males

10783

M18-39

10783

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

17039

Males

10731

M18-39

10731

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17406

Males

10882

M18-39

10882

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20632

Males

12263

M18-39

12263

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23055

Males

13343

M18-39

13343

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26138

Males

14886

M18-39

14886

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15728

Males

10057

M18-39

10057

Passing Analysis

Category:
Athletes Passed
4182
Passed By
1222
Net Change
+2960
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21739
5K → 10K126223+1239#21739#20500
10K → 15K66513+652#20500#19848
15K → 20K8821+881#19848#18967
20K → Half968+88#18967#18879
Half → 25K29115+276#18879#18603
25K → 30K41025+385#18603#18218
30K → 20M16519+146#18218#18072
20M → 21M13849+89#18072#17983
21M → 35K5132+19#17983#17964
35K → 23M9975+24#17964#17940
23M → 24M15203-188#17940#18128
24M → 40K8346-338#18128#18466
40K → 25.2M3399-396#18466#18862
25.2M → Finish9714+83#18862#18779
TOTALS41821222+2960
📊

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