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BOSTON MARATHON 2025

Stefan Olsson

Bib: 30208•M

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:40/mi
30:01
↑ 97↓ 3451.5%
10K· 6.21 mi
9:48/mi
1:00:29
↑ 79↓ 1380.4%
15K· 9.32 mi
9:24/mi
1:29:42
↑ 67↓ 78
20K· 12.43 mi
9:45/mi
1:59:59
↑ 106↓ 860.1%
Half· 13.11 mi
9:45/mi
2:06:38
↑ 19↓ 370.5%
25K· 15.53 mi
10:34/mi
2:32:14
↑ 66↓ 880.2%
30K· 18.64 mi
11:28/mi
3:07:51
↑ 181↓ 1480.2%
20M
12:15/mi
3:24:30
↑ 64↓ 500.2%
21M
14:07/mi
3:38:37
↑ 106↓ 241.6%
35K· 21.75 mi
12:53/mi
3:48:15
↑ 17↓ 861.7%
23M
12:07/mi
4:03:25
↑ 23↓ 630.6%
24M
13:07/mi
4:16:32
↓ 821.3%
40K· 24.85 mi
13:48/mi
4:28:20
↓ 200.3%
25.2M
14:53/mi
4:33:28
↑ 13↓ 160.2%
Finish· 26.22 mi
10:46/mi
4:44:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:38
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:37:48
Pace12:02 /mi
📊Positive Split: 24.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:1530:019:4030:01
9:40
-
10K
6.21 mi12:22:431:00:299:4430:28
9:48
+0:08
15K
9.32 mi12:51:561:29:429:3729:13
9:24
-0:24
20K
12.43 mi13:22:131:59:599:3930:17
9:45
+0:21
Half
13.11 mi13:28:522:06:389:406:39
9:45
0:00
25K
15.53 mi13:54:282:32:149:4825:36
10:34
+0:49
30K
18.64 mi14:30:053:07:5110:0535:37
11:28
+0:54
20M
20.00 mi14:46:443:24:3010:1316:39
12:15
+0:47
21M
21.00 mi15:00:513:38:3710:2514:07
14:07
+1:52
35K
21.75 mi15:10:293:48:1510:309:38
12:53
-1:14
23M
23.00 mi15:25:394:03:2510:3515:10
12:07
-0:46
24M
24.00 mi15:38:464:16:3210:4113:07
13:07
+1:00
40K
24.85 mi15:50:344:28:2010:4811:48
13:48
+0:41
25.2M
25.20 mi15:55:424:33:2810:515:08
14:53
+1:05
Finish
26.22 mi16:06:404:44:2610:5110:58
10:46
-4:07

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

9:24 /mi

Average Pace

10:51 /mi

Slowest Pace

14:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:14

54% of race

Time at Steady Pace

1:18:24

28% of race

Time at Slower Pace

53:48

19% of race

Average Pace: 10:51 /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 mi11:52:1530:019:4030:01
9:40
#24729
10K
6.21 mi12:22:431:00:299:4430:28
9:48
#24826
15K
9.32 mi12:51:561:29:429:3729:13
9:24
#24374
20K
12.43 mi13:22:131:59:599:3930:17
9:45
#24175
Half
13.11 mi13:28:522:06:389:406:39
9:45
#24184
25K
15.53 mi13:54:282:32:149:4825:36
10:34
#24248
30K
18.64 mi14:30:053:07:5110:0535:37
11:28
#24404
20M
20.00 mi14:46:443:24:3010:1316:39
12:15
#24540
21M
21.00 mi15:00:513:38:3710:2514:07
14:07
#24694
35K
21.75 mi15:10:293:48:1510:309:38
12:53
#24801
23M
23.00 mi15:25:394:03:2510:3515:10
12:07
#24855
24M
24.00 mi15:38:464:16:3210:4113:07
13:07
#24988
40K
24.85 mi15:50:344:28:2010:4811:48
13:48
#25103
25.2M
25.20 mi15:55:424:33:2810:515:08
14:53
#25144
Finish
26.22 mi16:06:404:44:2610:5110:58
10:46
#25139
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24729145891458923485(Top 83%)14056(Top 87%)14056(Top 704%)
10K6.21 mi3.10 mi24826-9714623-3414623-3424866(Top 88%)14641(Top 91%)14641(Top 734%)
15K9.32 mi3.11 mi24374+45214422+20114422+20123485(Top 83%)14056(Top 87%)14056(Top 704%)
20K12.43 mi3.11 mi24175+19914322+10014322+10023616(Top 83%)14064(Top 87%)14064(Top 705%)
Half13.11 mi0.68 mi24184-914323-114323-124242(Top 85%)14344(Top 89%)14344(Top 719%)
25K15.53 mi2.42 mi24248-6414337-1414337-1424478(Top 86%)14413(Top 89%)14413(Top 722%)
30K18.64 mi3.11 mi24404-15614393-5614393-5624799(Top 87%)14441(Top 90%)14441(Top 723%)
20M20.00 mi1.36 mi24540-13614442-4914442-4925604(Top 90%)14735(Top 91%)14735(Top 738%)
21M21.00 mi1.00 mi24694-15414495-5314495-5326343(Top 93%)15040(Top 93%)15040(Top 754%)
35K21.75 mi0.75 mi24801-10714535-4014535-4026853(Top 95%)15263(Top 95%)15263(Top 765%)
23M23.00 mi1.25 mi24855-5414544-914544-925284(Top 89%)14470(Top 90%)14470(Top 725%)
24M24.00 mi1.00 mi24988-13314592-4814592-4826980(Top 95%)15286(Top 95%)15286(Top 766%)
40K24.85 mi0.85 mi25103-11514639-4714639-4727027(Top 95%)15302(Top 95%)15302(Top 767%)
25.2M25.20 mi0.35 mi25144-4114654-1514654-1527042(Top 95%)15288(Top 95%)15288(Top 766%)
Finish26.22 mi1.02 mi25139+514639+1514639+1524879(Top 88%)14215(Top 88%)14215(Top 712%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

23485

Males

14056

M50-54

14056

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

24866

Males

14641

M50-54

14641

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

23485

Males

14056

M50-54

14056

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23616

Males

14064

M50-54

14064

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

24242

Males

14344

M50-54

14344

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

24478

Males

14413

M50-54

14413

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24799

Males

14441

M50-54

14441

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25604

Males

14735

M50-54

14735

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

26343

Males

15040

M50-54

15040

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

26853

Males

15263

M50-54

15263

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

25284

Males

14470

M50-54

14470

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

26980

Males

15286

M50-54

15286

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

27027

Males

15302

M50-54

15302

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

27042

Males

15288

M50-54

15288

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

24879

Males

14215

M50-54

14215

Passing Analysis

Category:
Athletes Passed
1207
Passed By
1617
Net Change
-410
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24729
5K → 10K165262-97#24729#24826
10K → 15K46311+452#24826#24374
15K → 20K24344+199#24374#24175
20K → Half2332-9#24175#24184
Half → 25K91155-64#24184#24248
25K → 30K85241-156#24248#24404
30K → 20M26162-136#24404#24540
20M → 21M25179-154#24540#24694
21M → 35K7114-107#24694#24801
35K → 23M3084-54#24801#24855
23M → 24M10143-133#24855#24988
24M → 40K11126-115#24988#25103
40K → 25.2M243-41#25103#25144
25.2M → Finish2621+5#25144#25139
TOTALS12071617-410
📊

Passing Visuals

Category:
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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