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BOSTON MARATHON 2025

Karol Szoch

Bib: 873•M

CT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Division (M18-39)
#0 / 5642
Top 23%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:53
Rank: #1340
Start → 5K
18:53 | 6:05/mi
10K· 6.21 mi
37:58
Rank: #1470 (-130)
5K → 10K
19:05 | 6:09/mi
15K· 9.32 mi
57:38
Rank: #1779 (-309)
10K → 15K
19:40 | 6:20/mi
20K· 12.43 mi
1:16:41
Rank: #1631 (+148)
15K → 20K
19:03 | 6:08/mi
Half· 13.11 mi
1:20:48
Rank: #1602 (+29)
20K → Half
4:07 | 6:02/mi
25K· 15.53 mi
1:35:30
Rank: #1464 (+138)
Half → 25K
14:42 | 6:04/mi
30K· 18.64 mi
1:54:43
Rank: #1317 (+147)
25K → 30K
19:13 | 6:11/mi
20M
2:03:00
Rank: #1230 (+87)
30K → 20M
8:17 | 6:06/mi
21M
2:09:51
Rank: #1228 (+2)
20M → 21M
6:51 | 6:51/mi
35K· 21.75 mi
2:14:30
Rank: #1215 (+13)
21M → 35K
4:39 | 6:13/mi
23M
2:23:17
Rank: #1280 (-65)
35K → 23M
8:47 | 7:01/mi
24M
2:30:30
Rank: #1386 (-106)
23M → 24M
7:13 | 7:13/mi
40K· 24.85 mi
2:36:37
Rank: #1463 (-77)
24M → 40K
6:07 | 7:09/mi
25.2M
2:39:33
Rank: #1538 (-75)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
2:46:43
Rank: #1666 (-128)
25.2M → Finish
7:10 | 7:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:48
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:25:55
Pace6:33 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0018:536:0518:53
6:05
-
10K
6.21 mi10:38:0537:586:0719:05
6:09
+0:04
15K
9.32 mi10:57:4557:386:1119:40
6:20
+0:11
20K
12.43 mi11:16:481:16:416:1019:03
6:08
-0:12
Half
13.11 mi11:20:551:20:486:104:07
6:02
-0:06
25K
15.53 mi11:35:371:35:306:0914:42
6:04
+0:02
30K
18.64 mi11:54:501:54:436:0919:13
6:11
+0:07
20M
20.00 mi12:03:072:03:006:098:17
6:06
-0:05
21M
21.00 mi12:09:582:09:516:116:51
6:51
+0:45
35K
21.75 mi12:14:372:14:306:114:39
6:13
-0:38
23M
23.00 mi12:23:242:23:176:148:47
7:01
+0:48
24M
24.00 mi12:30:372:30:306:167:13
7:13
+0:12
40K
24.85 mi12:36:442:36:376:186:07
7:09
-0:04
25.2M
25.20 mi12:39:402:39:336:202:56
8:30
+1:21
Finish
26.22 mi12:46:502:46:436:227:10
7:02
-1:28

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

6:02 /mi

Average Pace

6:22 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:07:39

77% of race

Time at Slower Pace

39:04

23% of race

Average Pace: 6:22 /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 mi10:19:0018:536:0518:53
6:05
#1340
10K
6.21 mi10:38:0537:586:0719:05
6:09
#1470
15K
9.32 mi10:57:4557:386:1119:40
6:20
#1779
20K
12.43 mi11:16:481:16:416:1019:03
6:08
#1631
Half
13.11 mi11:20:551:20:486:104:07
6:02
#1602
25K
15.53 mi11:35:371:35:306:0914:42
6:04
#1464
30K
18.64 mi11:54:501:54:436:0919:13
6:11
#1317
20M
20.00 mi12:03:072:03:006:098:17
6:06
#1230
21M
21.00 mi12:09:582:09:516:116:51
6:51
#1228
35K
21.75 mi12:14:372:14:306:114:39
6:13
#1215
23M
23.00 mi12:23:242:23:176:148:47
7:01
#1280
24M
24.00 mi12:30:372:30:306:167:13
7:13
#1386
40K
24.85 mi12:36:442:36:376:186:07
7:09
#1463
25.2M
25.20 mi12:39:402:39:336:202:56
8:30
#1538
Finish
26.22 mi12:46:502:46:436:227:10
7:02
#1666
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1340127512752531(Top 9%)2416(Top 15%)2416(Top 43%)
10K6.21 mi3.10 mi1470-1301399-1241399-1241652(Top 6%)1573(Top 10%)1573(Top 28%)
15K9.32 mi3.11 mi1779-3091693-2941693-2942531(Top 9%)2416(Top 15%)2416(Top 43%)
20K12.43 mi3.11 mi1631+1481548+1451548+1451287(Top 5%)1221(Top 8%)1221(Top 22%)
Half13.11 mi0.68 mi1602+291519+291519+291308(Top 5%)1242(Top 8%)1242(Top 22%)
25K15.53 mi2.42 mi1464+1381389+1301389+130986(Top 3%)930(Top 6%)930(Top 16%)
30K18.64 mi3.11 mi1317+1471243+1461243+146879(Top 3%)823(Top 5%)823(Top 15%)
20M20.00 mi1.36 mi1230+871162+811162+81542(Top 2%)509(Top 3%)509(Top 9%)
21M21.00 mi1.00 mi1228+21157+51157+51708(Top 6%)1612(Top 10%)1612(Top 29%)
35K21.75 mi0.75 mi1215+131144+131144+131304(Top 5%)1234(Top 8%)1234(Top 22%)
23M23.00 mi1.25 mi1280-651205-611205-613844(Top 14%)3457(Top 21%)3457(Top 61%)
24M24.00 mi1.00 mi1386-1061306-1011306-1015909(Top 21%)4857(Top 30%)4857(Top 86%)
40K24.85 mi0.85 mi1463-771382-761382-764773(Top 17%)4051(Top 25%)4051(Top 72%)
25.2M25.20 mi0.35 mi1538-751454-721454-728740(Top 31%)6299(Top 39%)6299(Top 112%)
Finish26.22 mi1.02 mi1666-1281576-1221576-1225926(Top 21%)4684(Top 29%)4684(Top 83%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2531

Males

2416

M18-39

2416

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1652

Males

1573

M18-39

1573

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2531

Males

2416

M18-39

2416

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1287

Males

1221

M18-39

1221

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1308

Males

1242

M18-39

1242

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

986

Males

930

M18-39

930

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

879

Males

823

M18-39

823

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

542

Males

509

M18-39

509

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1708

Males

1612

M18-39

1612

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1304

Males

1234

M18-39

1234

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3844

Males

3457

M18-39

3457

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5909

Males

4857

M18-39

4857

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4773

Males

4051

M18-39

4051

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8740

Males

6299

M18-39

6299

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5926

Males

4684

M18-39

4684

Passing Analysis

Category:
Athletes Passed
677
Passed By
1003
Net Change
-326
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1340
5K → 10K29159-130#1340#1470
10K → 15K6315-309#1470#1779
15K → 20K1535+148#1779#1631
20K → Half301+29#1631#1602
Half → 25K1380+138#1602#1464
25K → 30K1503+147#1464#1317
30K → 20M881+87#1317#1230
20M → 21M2624+2#1230#1228
21M → 35K2310+13#1228#1215
35K → 23M2085-65#1215#1280
23M → 24M7113-106#1280#1386
24M → 40K481-77#1386#1463
40K → 25.2M176-75#1463#1538
25.2M → Finish2130-128#1538#1666
TOTALS6771003-326
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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