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BOSTON MARATHON 2025

Peter Zelken

Bib: 9633•M

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Masters (Masters Men)
#0 / 10463
Top 32%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:04
Rank: #8658
Start → 5K
22:04 | 7:06/mi
10K· 6.21 mi
43:55
Rank: #8411 (+247)
5K → 10K
21:51 | 7:02/mi
15K· 9.32 mi
1:05:48
Rank: #8199 (+212)
10K → 15K
21:53 | 7:03/mi
20K· 12.43 mi
1:27:53
Rank: #7974 (+225)
15K → 20K
22:05 | 7:06/mi
Half· 13.11 mi
1:32:42
Rank: #7968 (+6)
20K → Half
4:49 | 7:04/mi
25K· 15.53 mi
1:50:15
Rank: #7906 (+62)
Half → 25K
17:33 | 7:14/mi
30K· 18.64 mi
2:14:09
Rank: #8000 (-94)
25K → 30K
23:54 | 7:42/mi
20M
2:24:52
Rank: #8078 (-78)
30K → 20M
10:43 | 7:53/mi
21M
2:33:11
Rank: #8092 (-14)
20M → 21M
8:19 | 8:19/mi
35K· 21.75 mi
2:39:09
Rank: #8210 (-118)
21M → 35K
5:58 | 7:59/mi
23M
2:49:25
Rank: #8343 (-133)
35K → 23M
10:16 | 8:12/mi
24M
2:57:39
Rank: #8543 (-200)
23M → 24M
8:14 | 8:14/mi
40K· 24.85 mi
3:04:51
Rank: #8689 (-146)
24M → 40K
7:12 | 8:25/mi
25.2M
3:07:56
Rank: #8727 (-38)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:16:05
Rank: #8887 (-160)
25.2M → Finish
8:09 | 8:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:42
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:43:23
Pace7:53 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5422:047:0622:04
7:06
-
10K
6.21 mi11:09:4543:557:0421:51
7:02
-0:04
15K
9.32 mi11:31:381:05:487:0421:53
7:03
+0:01
20K
12.43 mi11:53:431:27:537:0422:05
7:06
+0:03
Half
13.11 mi11:58:321:32:427:044:49
7:04
-0:02
25K
15.53 mi12:16:051:50:157:0617:33
7:14
+0:10
30K
18.64 mi12:39:592:14:097:1223:54
7:42
+0:28
20M
20.00 mi12:50:422:24:527:1510:43
7:53
+0:11
21M
21.00 mi12:59:012:33:117:188:19
8:19
+0:26
35K
21.75 mi13:04:592:39:097:195:58
7:59
-0:20
23M
23.00 mi13:15:152:49:257:2210:16
8:12
+0:13
24M
24.00 mi13:23:292:57:397:248:14
8:14
+0:02
40K
24.85 mi13:30:413:04:517:267:12
8:25
+0:11
25.2M
25.20 mi13:33:463:07:567:273:05
8:56
+0:31
Finish
26.22 mi13:41:553:16:057:298:09
8:00
-0:56

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

7:02 /mi

Average Pace

7:29 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:15

56% of race

Time at Steady Pace

48:44

25% of race

Time at Slower Pace

37:06

19% of race

Average Pace: 7:29 /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 mi10:47:5422:047:0622:04
7:06
#8658
10K
6.21 mi11:09:4543:557:0421:51
7:02
#8411
15K
9.32 mi11:31:381:05:487:0421:53
7:03
#8199
20K
12.43 mi11:53:431:27:537:0422:05
7:06
#7974
Half
13.11 mi11:58:321:32:427:044:49
7:04
#7968
25K
15.53 mi12:16:051:50:157:0617:33
7:14
#7906
30K
18.64 mi12:39:592:14:097:1223:54
7:42
#8000
20M
20.00 mi12:50:422:24:527:1510:43
7:53
#8078
21M
21.00 mi12:59:012:33:117:188:19
8:19
#8092
35K
21.75 mi13:04:592:39:097:195:58
7:59
#8210
23M
23.00 mi13:15:152:49:257:2210:16
8:12
#8343
24M
24.00 mi13:23:292:57:397:248:14
8:14
#8543
40K
24.85 mi13:30:413:04:517:267:12
8:25
#8689
25.2M
25.20 mi13:33:463:07:567:273:05
8:56
#8727
Finish
26.22 mi13:41:553:16:057:298:09
8:00
#8887
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8658741674167910(Top 28%)6890(Top 43%)6890(Top 307%)
10K6.21 mi3.10 mi8411+2477243+1737243+1738162(Top 29%)7075(Top 44%)7075(Top 315%)
15K9.32 mi3.11 mi8199+2127099+1447099+1447910(Top 28%)6890(Top 43%)6890(Top 307%)
20K12.43 mi3.11 mi7974+2256936+1636936+1637564(Top 27%)6592(Top 41%)6592(Top 293%)
Half13.11 mi0.68 mi7968+66932+46932+48003(Top 28%)6904(Top 43%)6904(Top 307%)
25K15.53 mi2.42 mi7906+626875+576875+577891(Top 28%)6699(Top 42%)6699(Top 298%)
30K18.64 mi3.11 mi8000-946870+56870+59127(Top 32%)7204(Top 45%)7204(Top 321%)
20M20.00 mi1.36 mi8078-786884-146884-149589(Top 34%)7302(Top 45%)7302(Top 325%)
21M21.00 mi1.00 mi8092-146861+236861+239307(Top 33%)6991(Top 43%)6991(Top 311%)
35K21.75 mi0.75 mi8210-1186921-606921-6012057(Top 42%)8337(Top 52%)8337(Top 371%)
23M23.00 mi1.25 mi8343-1336953-326953-3211334(Top 40%)7901(Top 49%)7901(Top 352%)
24M24.00 mi1.00 mi8543-2007040-877040-8712757(Top 45%)8520(Top 53%)8520(Top 379%)
40K24.85 mi0.85 mi8689-1467080-407080-4012881(Top 45%)8460(Top 53%)8460(Top 377%)
25.2M25.20 mi0.35 mi8727-387089-97089-911382(Top 40%)7642(Top 47%)7642(Top 340%)
Finish26.22 mi1.02 mi8887-1607145-567145-5612822(Top 45%)8435(Top 52%)8435(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

7910

Males

6890

M40-44

6890

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8162

Males

7075

M40-44

7075

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

7910

Males

6890

M40-44

6890

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7564

Males

6592

M40-44

6592

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

8003

Males

6904

M40-44

6904

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7891

Males

6699

M40-44

6699

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

9127

Males

7204

M40-44

7204

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9589

Males

7302

M40-44

7302

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

9307

Males

6991

M40-44

6991

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

12057

Males

8337

M40-44

8337

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11334

Males

7901

M40-44

7901

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12757

Males

8520

M40-44

8520

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12881

Males

8460

M40-44

8460

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11382

Males

7642

M40-44

7642

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12822

Males

8435

M40-44

8435

Passing Analysis

Category:
Athletes Passed
1645
Passed By
1874
Net Change
-229
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8658
5K → 10K357110+247#8658#8411
10K → 15K26957+212#8411#8199
15K → 20K26338+225#8199#7974
20K → Half3024+6#7974#7968
Half → 25K14785+62#7968#7906
25K → 30K158252-94#7906#8000
30K → 20M78156-78#8000#8078
20M → 21M95109-14#8078#8092
21M → 35K32150-118#8092#8210
35K → 23M75208-133#8210#8343
23M → 24M28228-200#8343#8543
24M → 40K53199-146#8543#8689
40K → 25.2M2462-38#8689#8727
25.2M → Finish36196-160#8727#8887
TOTALS16451874-229
📊

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