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BOSTON MARATHON 2025

Slawomir Sibilski

Bib: 6840•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Masters (Masters Men)
#0 / 10463
Top 21%
Division (M50-54)
#0 / 1996
Top 16%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:48
Rank: #5388
Start → 5K
20:48 | 6:42/mi
10K· 6.21 mi
41:47
Rank: #5613 (-225)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:02:52
Rank: #5653 (-40)
10K → 15K
21:05 | 6:47/mi
20K· 12.43 mi
1:24:18
Rank: #5800 (-147)
15K → 20K
21:26 | 6:54/mi
Half· 13.11 mi
1:28:59
Rank: #5846 (-46)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:45:50
Rank: #5824 (+22)
Half → 25K
16:51 | 6:57/mi
30K· 18.64 mi
2:08:42
Rank: #6004 (-180)
25K → 30K
22:52 | 7:22/mi
20M
2:19:05
Rank: #6088 (-84)
30K → 20M
10:23 | 7:38/mi
21M
2:27:39
Rank: #6276 (-188)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:33:20
Rank: #6315 (-39)
21M → 35K
5:41 | 7:36/mi
23M
2:42:47
Rank: #6290 (+25)
35K → 23M
9:27 | 7:33/mi
24M
2:50:28
Rank: #6329 (-39)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
2:57:02
Rank: #6345 (-16)
24M → 40K
6:34 | 7:41/mi
25.2M
2:59:56
Rank: #6336 (+9)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:07:43
Rank: #6403 (-67)
25.2M → Finish
7:47 | 7:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:59
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:38:44
Pace7:32 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:2120:486:4220:48
6:42
-
10K
6.21 mi10:47:2041:476:4320:59
6:45
+0:03
15K
9.32 mi11:08:251:02:526:4521:05
6:47
+0:02
20K
12.43 mi11:29:511:24:186:4721:26
6:54
+0:07
Half
13.11 mi11:34:321:28:596:474:41
6:52
-0:02
25K
15.53 mi11:51:231:45:506:4916:51
6:57
+0:05
30K
18.64 mi12:14:152:08:426:5422:52
7:22
+0:25
20M
20.00 mi12:24:382:19:056:5710:23
7:38
+0:16
21M
21.00 mi12:33:122:27:397:028:34
8:34
+0:56
35K
21.75 mi12:38:532:33:207:035:41
7:36
-0:58
23M
23.00 mi12:48:202:42:477:059:27
7:33
-0:03
24M
24.00 mi12:56:012:50:287:067:41
7:41
+0:08
40K
24.85 mi13:02:352:57:027:076:34
7:41
0:00
25.2M
25.20 mi13:05:292:59:567:082:54
8:25
+0:44
Finish
26.22 mi13:13:163:07:437:107:47
7:38
-0:47

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

6:42 /mi

Average Pace

7:10 /mi

Slowest Pace

8:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:50

56% of race

Time at Steady Pace

1:10:25

38% of race

Time at Slower Pace

11:28

6% of race

Average Pace: 7:10 /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 mi10:26:2120:486:4220:48
6:42
#5388
10K
6.21 mi10:47:2041:476:4320:59
6:45
#5613
15K
9.32 mi11:08:251:02:526:4521:05
6:47
#5653
20K
12.43 mi11:29:511:24:186:4721:26
6:54
#5800
Half
13.11 mi11:34:321:28:596:474:41
6:52
#5846
25K
15.53 mi11:51:231:45:506:4916:51
6:57
#5824
30K
18.64 mi12:14:152:08:426:5422:52
7:22
#6004
20M
20.00 mi12:24:382:19:056:5710:23
7:38
#6088
21M
21.00 mi12:33:122:27:397:028:34
8:34
#6276
35K
21.75 mi12:38:532:33:207:035:41
7:36
#6315
23M
23.00 mi12:48:202:42:477:059:27
7:33
#6290
24M
24.00 mi12:56:012:50:287:067:41
7:41
#6329
40K
24.85 mi13:02:352:57:027:076:34
7:41
#6345
25.2M
25.20 mi13:05:292:59:567:082:54
8:25
#6336
Finish
26.22 mi13:13:163:07:437:107:47
7:38
#6403
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5388500550055943(Top 21%)5409(Top 34%)5409(Top 271%)
10K6.21 mi3.10 mi5613-2255187-1825187-1825874(Top 21%)5375(Top 33%)5375(Top 269%)
15K9.32 mi3.11 mi5653-405211-245211-245943(Top 21%)5409(Top 34%)5409(Top 271%)
20K12.43 mi3.11 mi5800-1475321-1105321-1106174(Top 22%)5564(Top 35%)5564(Top 279%)
Half13.11 mi0.68 mi5846-465359-385359-386606(Top 23%)5902(Top 37%)5902(Top 296%)
25K15.53 mi2.42 mi5824+225320+395320+395973(Top 21%)5377(Top 33%)5377(Top 269%)
30K18.64 mi3.11 mi6004-1805443-1235443-1236801(Top 24%)5845(Top 36%)5845(Top 293%)
20M20.00 mi1.36 mi6088-845490-475490-477941(Top 28%)6395(Top 40%)6395(Top 320%)
21M21.00 mi1.00 mi6276-1885625-1355625-13510849(Top 38%)7788(Top 48%)7788(Top 390%)
35K21.75 mi0.75 mi6315-395643-185643-189257(Top 33%)6963(Top 43%)6963(Top 349%)
23M23.00 mi1.25 mi6290+255598+455598+456877(Top 24%)5511(Top 34%)5511(Top 276%)
24M24.00 mi1.00 mi6329-395606-85606-88969(Top 32%)6620(Top 41%)6620(Top 332%)
40K24.85 mi0.85 mi6345-165596+105596+107909(Top 28%)5929(Top 37%)5929(Top 297%)
25.2M25.20 mi0.35 mi6336+95574+225574+228135(Top 29%)5959(Top 37%)5959(Top 299%)
Finish26.22 mi1.02 mi6403-675594-205594-2010178(Top 36%)7064(Top 44%)7064(Top 354%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5943

Males

5409

M50-54

5409

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5874

Males

5375

M50-54

5375

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5943

Males

5409

M50-54

5409

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6174

Males

5564

M50-54

5564

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6606

Males

5902

M50-54

5902

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5973

Males

5377

M50-54

5377

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6801

Males

5845

M50-54

5845

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7941

Males

6395

M50-54

6395

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10849

Males

7788

M50-54

7788

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

9257

Males

6963

M50-54

6963

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6877

Males

5511

M50-54

5511

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8969

Males

6620

M50-54

6620

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7909

Males

5929

M50-54

5929

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8135

Males

5959

M50-54

5959

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10178

Males

7064

M50-54

7064

Passing Analysis

Category:
Athletes Passed
929
Passed By
1944
Net Change
-1015
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5388
5K → 10K95320-225#5388#5613
10K → 15K117157-40#5613#5653
15K → 20K87234-147#5653#5800
20K → Half854-46#5800#5846
Half → 25K147125+22#5846#5824
25K → 30K117297-180#5824#6004
30K → 20M45129-84#6004#6088
20M → 21M28216-188#6088#6276
21M → 35K2968-39#6276#6315
35K → 23M8964+25#6315#6290
23M → 24M4887-39#6290#6329
24M → 40K5470-16#6329#6345
40K → 25.2M2920+9#6345#6336
25.2M → Finish36103-67#6336#6403
TOTALS9291944-1015
📊

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