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BOSTON MARATHON 2025

Martin Zastera

Bib: 17672•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 40%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 42%
Division (M50-54)
#0 / 1996
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:26
Rank: #12604
Start → 5K
23:26 | 7:33/mi
10K· 6.21 mi
46:55
Rank: #12573 (+31)
5K → 10K
23:29 | 7:34/mi
15K· 9.32 mi
1:10:34
Rank: #12590 (-17)
10K → 15K
23:39 | 7:37/mi
20K· 12.43 mi
1:34:20
Rank: #12410 (+180)
15K → 20K
23:46 | 7:39/mi
Half· 13.11 mi
1:39:30
Rank: #12402 (+8)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:58:09
Rank: #12232 (+170)
Half → 25K
18:39 | 7:42/mi
30K· 18.64 mi
2:22:56
Rank: #11976 (+256)
25K → 30K
24:47 | 7:59/mi
20M
2:33:51
Rank: #11835 (+141)
30K → 20M
10:55 | 8:02/mi
21M
2:42:22
Rank: #11742 (+93)
20M → 21M
8:31 | 8:31/mi
35K· 21.75 mi
2:48:03
Rank: #11632 (+110)
21M → 35K
5:41 | 7:36/mi
23M
2:57:53
Rank: #11429 (+203)
35K → 23M
9:50 | 7:51/mi
24M
3:05:39
Rank: #11286 (+143)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
3:12:36
Rank: #11249 (+37)
24M → 40K
6:57 | 8:08/mi
25.2M
3:15:36
Rank: #11209 (+40)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:23:44
Rank: #11250 (-41)
25.2M → Finish
8:08 | 7:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:30
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:44:14
Pace7:57 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:5923:267:3323:26
7:33
-
10K
6.21 mi11:37:2846:557:3323:29
7:34
+0:01
15K
9.32 mi12:01:071:10:347:3423:39
7:37
+0:03
20K
12.43 mi12:24:531:34:207:3523:46
7:39
+0:02
Half
13.11 mi12:30:031:39:307:355:10
7:34
-0:05
25K
15.53 mi12:48:421:58:097:3618:39
7:42
+0:08
30K
18.64 mi13:13:292:22:567:4024:47
7:59
+0:17
20M
20.00 mi13:24:242:33:517:4210:55
8:02
+0:03
21M
21.00 mi13:32:552:42:227:448:31
8:31
+0:29
35K
21.75 mi13:38:362:48:037:445:41
7:36
-0:55
23M
23.00 mi13:48:262:57:537:449:50
7:51
+0:15
24M
24.00 mi13:56:123:05:397:447:46
7:46
-0:05
40K
24.85 mi14:03:093:12:367:456:57
8:08
+0:22
25.2M
25.20 mi14:06:093:15:367:463:00
8:42
+0:34
Finish
26.22 mi14:14:173:23:447:478:08
7:59
-0:43

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

7:33 /mi

Average Pace

7:47 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:13

94% of race

Time at Steady Pace

11:31

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi11:13:5923:267:3323:26
7:33
#12604
10K
6.21 mi11:37:2846:557:3323:29
7:34
#12573
15K
9.32 mi12:01:071:10:347:3423:39
7:37
#12590
20K
12.43 mi12:24:531:34:207:3523:46
7:39
#12410
Half
13.11 mi12:30:031:39:307:355:10
7:34
#12402
25K
15.53 mi12:48:421:58:097:3618:39
7:42
#12232
30K
18.64 mi13:13:292:22:567:4024:47
7:59
#11976
20M
20.00 mi13:24:242:33:517:4210:55
8:02
#11835
21M
21.00 mi13:32:552:42:227:448:31
8:31
#11742
35K
21.75 mi13:38:362:48:037:445:41
7:36
#11632
23M
23.00 mi13:48:262:57:537:449:50
7:51
#11429
24M
24.00 mi13:56:123:05:397:447:46
7:46
#11286
40K
24.85 mi14:03:093:12:367:456:57
8:08
#11249
25.2M
25.20 mi14:06:093:15:367:463:00
8:42
#11209
Finish
26.22 mi14:14:173:23:447:478:08
7:59
#11250
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi126049454945412683(Top 45%)9374(Top 58%)9374(Top 470%)
10K6.21 mi3.10 mi12573+319425+299425+2912626(Top 44%)9427(Top 59%)9427(Top 472%)
15K9.32 mi3.11 mi12590-179403+229403+2212683(Top 45%)9374(Top 58%)9374(Top 470%)
20K12.43 mi3.11 mi12410+1809282+1219282+12111935(Top 42%)8942(Top 56%)8942(Top 448%)
Half13.11 mi0.68 mi12402+89270+129270+1212272(Top 43%)9127(Top 57%)9127(Top 457%)
25K15.53 mi2.42 mi12232+1709161+1099161+10911463(Top 40%)8606(Top 53%)8606(Top 431%)
30K18.64 mi3.11 mi11976+2568963+1988963+19811209(Top 39%)8292(Top 51%)8292(Top 415%)
20M20.00 mi1.36 mi11835+1418861+1028861+10210650(Top 37%)7858(Top 49%)7858(Top 394%)
21M21.00 mi1.00 mi11742+938780+818780+8110563(Top 37%)7652(Top 48%)7652(Top 383%)
35K21.75 mi0.75 mi11632+1108700+808700+809314(Top 33%)7020(Top 44%)7020(Top 352%)
23M23.00 mi1.25 mi11429+2038552+1488552+1488961(Top 32%)6708(Top 42%)6708(Top 336%)
24M24.00 mi1.00 mi11286+1438444+1088444+1089561(Top 34%)6953(Top 43%)6953(Top 348%)
40K24.85 mi0.85 mi11249+378399+458399+4511065(Top 39%)7601(Top 47%)7601(Top 381%)
25.2M25.20 mi0.35 mi11209+408364+358364+359968(Top 35%)6944(Top 43%)6944(Top 348%)
Finish26.22 mi1.02 mi11250-418336+288336+2812730(Top 45%)8393(Top 52%)8393(Top 420%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

12683

Males

9374

M50-54

9374

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

12626

Males

9427

M50-54

9427

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

12683

Males

9374

M50-54

9374

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11935

Males

8942

M50-54

8942

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

12272

Males

9127

M50-54

9127

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

11463

Males

8606

M50-54

8606

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

11209

Males

8292

M50-54

8292

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10650

Males

7858

M50-54

7858

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

10563

Males

7652

M50-54

7652

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

9314

Males

7020

M50-54

7020

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8961

Males

6708

M50-54

6708

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9561

Males

6953

M50-54

6953

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

11065

Males

7601

M50-54

7601

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9968

Males

6944

M50-54

6944

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12730

Males

8393

M50-54

8393

Passing Analysis

Category:
Athletes Passed
2443
Passed By
1089
Net Change
+1354
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12604
5K → 10K299268+31#12604#12573
10K → 15K186203-17#12573#12590
15K → 20K27696+180#12590#12410
20K → Half3426+8#12410#12402
Half → 25K23565+170#12402#12232
25K → 30K369113+256#12232#11976
30K → 20M18746+141#11976#11835
20M → 21M14855+93#11835#11742
21M → 35K12414+110#11742#11632
35K → 23M21714+203#11632#11429
23M → 24M16724+143#11429#11286
24M → 40K8245+37#11286#11249
40K → 25.2M5616+40#11249#11209
25.2M → Finish63104-41#11209#11250
TOTALS24431089+1354
📊

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