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BOSTON MARATHON 2025

Piotr Kostyk

Bib: 1045•M

CT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Division (M18-39)
#0 / 5642
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:52
Rank: #3091
Start → 5K
19:52 | 6:24/mi
10K· 6.21 mi
39:30
Rank: #2778 (+313)
5K → 10K
19:38 | 6:19/mi
15K· 9.32 mi
59:12
Rank: #2691 (+87)
10K → 15K
19:42 | 6:20/mi
20K· 12.43 mi
1:19:02
Rank: #2607 (+84)
15K → 20K
19:50 | 6:23/mi
Half· 13.11 mi
1:23:18
Rank: #2590 (+17)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:38:39
Rank: #2456 (+134)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:59:05
Rank: #2381 (+75)
25K → 30K
20:26 | 6:35/mi
20M
2:08:09
Rank: #2353 (+28)
30K → 20M
9:04 | 6:40/mi
21M
2:15:49
Rank: #2483 (-130)
20M → 21M
7:40 | 7:40/mi
35K· 21.75 mi
2:21:20
Rank: #2634 (-151)
21M → 35K
5:31 | 7:22/mi
23M
2:30:27
Rank: #2753 (-119)
35K → 23M
9:07 | 7:17/mi
24M
2:38:11
Rank: #2951 (-198)
23M → 24M
7:44 | 7:44/mi
40K· 24.85 mi
2:44:21
Rank: #2972 (-21)
24M → 40K
6:10 | 7:13/mi
25.2M
2:47:40
Rank: #3110 (-138)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
2:55:46
Rank: #3429 (-319)
25.2M → Finish
8:06 | 7:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:18
Pace6:21 /mi
2nd Half
Distance13.11 mi
Time1:32:28
Pace7:03 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0119:526:2419:52
6:24
-
10K
6.21 mi10:39:3939:306:2119:38
6:19
-0:05
15K
9.32 mi10:59:2159:126:2119:42
6:20
+0:01
20K
12.43 mi11:19:111:19:026:2219:50
6:23
+0:03
Half
13.11 mi11:23:271:23:186:214:16
6:15
-0:08
25K
15.53 mi11:38:481:38:396:2115:21
6:20
+0:05
30K
18.64 mi11:59:141:59:056:2320:26
6:35
+0:15
20M
20.00 mi12:08:182:08:096:249:04
6:40
+0:05
21M
21.00 mi12:15:582:15:496:287:40
7:40
+1:00
35K
21.75 mi12:21:292:21:206:305:31
7:22
-0:18
23M
23.00 mi12:30:362:30:276:329:07
7:17
-0:05
24M
24.00 mi12:38:202:38:116:357:44
7:44
+0:27
40K
24.85 mi12:44:302:44:216:376:10
7:13
-0:31
25.2M
25.20 mi12:47:492:47:406:393:19
9:37
+2:24
Finish
26.22 mi12:55:552:55:466:438:06
7:57
-1:40

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

6:15 /mi

Average Pace

6:43 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:08:09

73% of race

Time at Slower Pace

47:37

27% of race

Average Pace: 6:42 /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 mi10:20:0119:526:2419:52
6:24
#3091
10K
6.21 mi10:39:3939:306:2119:38
6:19
#2778
15K
9.32 mi10:59:2159:126:2119:42
6:20
#2691
20K
12.43 mi11:19:111:19:026:2219:50
6:23
#2607
Half
13.11 mi11:23:271:23:186:214:16
6:15
#2590
25K
15.53 mi11:38:481:38:396:2115:21
6:20
#2456
30K
18.64 mi11:59:141:59:056:2320:26
6:35
#2381
20M
20.00 mi12:08:182:08:096:249:04
6:40
#2353
21M
21.00 mi12:15:582:15:496:287:40
7:40
#2483
35K
21.75 mi12:21:292:21:206:305:31
7:22
#2634
23M
23.00 mi12:30:362:30:276:329:07
7:17
#2753
24M
24.00 mi12:38:202:38:116:357:44
7:44
#2951
40K
24.85 mi12:44:302:44:216:376:10
7:13
#2972
25.2M
25.20 mi12:47:492:47:406:393:19
9:37
#3110
Finish
26.22 mi12:55:552:55:466:438:06
7:57
#3429
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3091293629362593(Top 9%)2476(Top 15%)2476(Top 44%)
10K6.21 mi3.10 mi2778+3132646+2902646+2902546(Top 9%)2432(Top 15%)2432(Top 43%)
15K9.32 mi3.11 mi2691+872566+802566+802593(Top 9%)2476(Top 15%)2476(Top 44%)
20K12.43 mi3.11 mi2607+842488+782488+782448(Top 9%)2336(Top 15%)2336(Top 41%)
Half13.11 mi0.68 mi2590+172473+152473+152305(Top 8%)2206(Top 14%)2206(Top 39%)
25K15.53 mi2.42 mi2456+1342345+1282345+1282040(Top 7%)1944(Top 12%)1944(Top 34%)
30K18.64 mi3.11 mi2381+752271+742271+742323(Top 8%)2201(Top 14%)2201(Top 39%)
20M20.00 mi1.36 mi2353+282244+272244+272354(Top 8%)2224(Top 14%)2224(Top 39%)
21M21.00 mi1.00 mi2483-1302369-1252369-1255464(Top 19%)4710(Top 29%)4710(Top 83%)
35K21.75 mi0.75 mi2634-1512509-1402509-1407673(Top 27%)6090(Top 38%)6090(Top 108%)
23M23.00 mi1.25 mi2753-1192614-1052614-1055348(Top 19%)4559(Top 28%)4559(Top 81%)
24M24.00 mi1.00 mi2951-1982791-1772791-1779293(Top 33%)6787(Top 42%)6787(Top 120%)
40K24.85 mi0.85 mi2972-212807-162807-165112(Top 18%)4283(Top 27%)4283(Top 76%)
25.2M25.20 mi0.35 mi3110-1382931-1242931-12415080(Top 53%)9419(Top 58%)9419(Top 167%)
Finish26.22 mi1.02 mi3429-3193206-2753206-27512494(Top 44%)8266(Top 51%)8266(Top 147%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2593

Males

2476

M18-39

2476

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2546

Males

2432

M18-39

2432

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2593

Males

2476

M18-39

2476

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2448

Males

2336

M18-39

2336

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2305

Males

2206

M18-39

2206

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2040

Males

1944

M18-39

1944

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2323

Males

2201

M18-39

2201

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2354

Males

2224

M18-39

2224

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5464

Males

4710

M18-39

4710

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7673

Males

6090

M18-39

6090

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5348

Males

4559

M18-39

4559

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9293

Males

6787

M18-39

6787

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5112

Males

4283

M18-39

4283

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15080

Males

9419

M18-39

9419

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

12494

Males

8266

M18-39

8266

Passing Analysis

Category:
Athletes Passed
1026
Passed By
1364
Net Change
-338
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3091
5K → 10K34027+313#3091#2778
10K → 15K12134+87#2778#2691
15K → 20K11430+84#2691#2607
20K → Half225+17#2607#2590
Half → 25K14511+134#2590#2456
25K → 30K12752+75#2456#2381
30K → 20M5426+28#2381#2353
20M → 21M20150-130#2353#2483
21M → 35K9160-151#2483#2634
35K → 23M28147-119#2634#2753
23M → 24M6204-198#2753#2951
24M → 40K3354-21#2951#2972
40K → 25.2M2140-138#2972#3110
25.2M → Finish5324-319#3110#3429
TOTALS10261364-338
📊

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