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BOSTON MARATHON 2023

Martin Zastera

Bib: 15135•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 45%
Division (M50-54)
#0 / 2052
Top 46%
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
7:34/mi
23:31
↑ 97↓ 3451.5%
10K· 6.21 mi
7:37/mi
47:11
↑ 79↓ 1380.4%
15K· 9.32 mi
7:45/mi
1:11:17
↑ 67↓ 78
20K· 12.43 mi
8:03/mi
1:36:17
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:41:30
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
2:00:44
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:25:39
↑ 181↓ 1480.2%
20M
8:00/mi
2:36:31
↑ 64↓ 500.2%
21M
8:35/mi
2:45:06
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:50:46
↑ 17↓ 861.7%
23M
7:52/mi
3:00:37
↑ 23↓ 630.6%
24M
7:38/mi
3:08:15
↓ 821.3%
40K· 24.85 mi
7:55/mi
3:15:01
↓ 200.3%
25.2M
8:27/mi
3:17:56
↑ 13↓ 160.2%
Finish· 26.22 mi
7:32/mi
3:25:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:30
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:44:07
Pace7:57 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1123:317:3423:31
7:34
-
10K
6.21 mi11:18:5147:117:3623:40
7:37
+0:03
15K
9.32 mi11:42:571:11:177:3924:06
7:45
+0:08
20K
12.43 mi12:07:571:36:177:4525:00
8:03
+0:18
Half
13.11 mi12:13:101:41:307:455:13
7:39
-0:24
25K
15.53 mi12:32:242:00:447:4619:14
7:56
+0:17
30K
18.64 mi12:57:192:25:397:4924:55
8:01
+0:05
20M
20.00 mi13:08:112:36:317:5010:52
8:00
-0:01
21M
21.00 mi13:16:462:45:067:528:35
8:35
+0:35
35K
21.75 mi13:22:262:50:467:515:40
7:34
-1:01
23M
23.00 mi13:32:173:00:377:519:51
7:52
+0:18
24M
24.00 mi13:39:553:08:157:517:38
7:38
-0:14
40K
24.85 mi13:46:413:15:017:516:46
7:55
+0:17
25.2M
25.20 mi13:49:363:17:567:512:55
8:27
+0:32
Finish
26.22 mi13:57:173:25:377:517:41
7:32
-0:55

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

7:32 /mi

Average Pace

7:51 /mi

Slowest Pace

8:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:07

94% of race

Time at Steady Pace

11:30

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:51 /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 mi10:55:1123:317:3423:31
7:34
#10251
10K
6.21 mi11:18:5147:117:3623:40
7:37
#10856
15K
9.32 mi11:42:571:11:177:3924:06
7:45
#11337
20K
12.43 mi12:07:571:36:177:4525:00
8:03
#11935
Half
13.11 mi12:13:101:41:307:455:13
7:39
#11916
25K
15.53 mi12:32:242:00:447:4619:14
7:56
#11926
30K
18.64 mi12:57:192:25:397:4924:55
8:01
#11724
20M
20.00 mi13:08:112:36:317:5010:52
8:00
#11583
21M
21.00 mi13:16:462:45:067:528:35
8:35
#11529
35K
21.75 mi13:22:262:50:467:515:40
7:34
#11406
23M
23.00 mi13:32:173:00:377:519:51
7:52
#11225
24M
24.00 mi13:39:553:08:157:517:38
7:38
#11104
40K
24.85 mi13:46:413:15:017:516:46
7:55
#11014
25.2M
25.20 mi13:49:363:17:567:512:55
8:27
#10960
Finish
26.22 mi13:57:173:25:377:517:41
7:32
#10862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi102518261826112346(Top 46%)9220(Top 61%)9220(Top 449%)
10K6.21 mi3.10 mi10856-6058589-3288589-32811474(Top 43%)8868(Top 58%)8868(Top 432%)
15K9.32 mi3.11 mi11337-4818812-2238812-22312346(Top 46%)9220(Top 61%)9220(Top 449%)
20K12.43 mi3.11 mi11935-5989042-2309042-23013787(Top 52%)9781(Top 64%)9781(Top 477%)
Half13.11 mi0.68 mi11916+199035+79035+711344(Top 43%)8777(Top 58%)8777(Top 428%)
25K15.53 mi2.42 mi11926-109014+219014+2112139(Top 46%)8960(Top 59%)8960(Top 437%)
30K18.64 mi3.11 mi11724+2028886+1288886+12811055(Top 42%)8373(Top 55%)8373(Top 408%)
20M20.00 mi1.36 mi11583+1418807+798807+7910225(Top 38%)7878(Top 52%)7878(Top 384%)
21M21.00 mi1.00 mi11529+548764+438764+4310951(Top 41%)8096(Top 53%)8096(Top 395%)
35K21.75 mi0.75 mi11406+1238697+678697+679086(Top 34%)7129(Top 47%)7129(Top 347%)
23M23.00 mi1.25 mi11225+1818593+1048593+1048855(Top 33%)6898(Top 45%)6898(Top 336%)
24M24.00 mi1.00 mi11104+1218510+838510+838628(Top 32%)6695(Top 44%)6695(Top 326%)
40K24.85 mi0.85 mi11014+908439+718439+719426(Top 35%)7053(Top 46%)7053(Top 344%)
25.2M25.20 mi0.35 mi10960+548395+448395+449222(Top 35%)6882(Top 45%)6882(Top 335%)
Finish26.22 mi1.02 mi10862+988320+758320+758833(Top 33%)6661(Top 44%)6661(Top 325%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12346

Males

9220

M50-54

9220

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

11474

Males

8868

M50-54

8868

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12346

Males

9220

M50-54

9220

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

13787

Males

9781

M50-54

9781

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

11344

Males

8777

M50-54

8777

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

12139

Males

8960

M50-54

8960

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11055

Males

8373

M50-54

8373

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10225

Males

7878

M50-54

7878

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10951

Males

8096

M50-54

8096

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9086

Males

7129

M50-54

7129

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

8855

Males

6898

M50-54

6898

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8628

Males

6695

M50-54

6695

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9426

Males

7053

M50-54

7053

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9222

Males

6882

M50-54

6882

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8833

Males

6661

M50-54

6661

Passing Analysis

Category:
Athletes Passed
1711
Passed By
2322
Net Change
-611
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10251
5K → 10K92697-605#10251#10856
10K → 15K65546-481#10856#11337
15K → 20K44642-598#11337#11935
20K → Half3718+19#11935#11916
Half → 25K138148-10#11916#11926
25K → 30K28684+202#11926#11724
30K → 20M16928+141#11724#11583
20M → 21M11561+54#11583#11529
21M → 35K1318+123#11529#11406
35K → 23M19918+181#11406#11225
23M → 24M14120+121#11225#11104
24M → 40K11121+90#11104#11014
40K → 25.2M628+54#11014#10960
25.2M → Finish12123+98#10960#10862
TOTALS17112322-611
📊

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