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BOSTON MARATHON 2025

Stephan Lowiner

Bib: 863•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 1%
Gender (Male)
#0 / 16105
Top 2%
Division (M18-39)
#0 / 5642
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:13
Rank: #720
Start → 5K
18:13 | 5:52/mi
10K· 6.21 mi
36:25
Rank: #716 (+4)
5K → 10K
18:12 | 5:51/mi
15K· 9.32 mi
54:46
Rank: #729 (-13)
10K → 15K
18:21 | 5:54/mi
20K· 12.43 mi
1:13:02
Rank: #679 (+50)
15K → 20K
18:16 | 5:53/mi
Half· 13.11 mi
1:16:59
Rank: #671 (+8)
20K → Half
3:57 | 5:47/mi
25K· 15.53 mi
1:31:12
Rank: #624 (+47)
Half → 25K
14:13 | 5:52/mi
30K· 18.64 mi
1:49:33
Rank: #549 (+75)
25K → 30K
18:21 | 5:54/mi
20M
1:57:32
Rank: #514 (+35)
30K → 20M
7:59 | 5:52/mi
21M
2:03:37
Rank: #479 (+35)
20M → 21M
6:05 | 6:05/mi
35K· 21.75 mi
2:07:50
Rank: #458 (+21)
21M → 35K
4:13 | 5:38/mi
23M
2:15:11
Rank: #431 (+27)
35K → 23M
7:21 | 5:52/mi
24M
2:20:56
Rank: #412 (+19)
23M → 24M
5:45 | 5:45/mi
40K· 24.85 mi
2:25:59
Rank: #397 (+15)
24M → 40K
5:03 | 5:54/mi
25.2M
2:28:12
Rank: #392 (+5)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:33:54
Rank: #367 (+25)
25.2M → Finish
5:42 | 5:36/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:16:59
Pace5:52 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:16:55
Pace5:52 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3218:135:5218:13
5:52
-
10K
6.21 mi10:36:4436:255:5218:12
5:51
-0:01
15K
9.32 mi10:55:0554:465:5318:21
5:54
+0:03
20K
12.43 mi11:13:211:13:025:5318:16
5:53
-0:01
Half
13.11 mi11:17:181:16:595:523:57
5:47
-0:06
25K
15.53 mi11:31:311:31:125:5214:13
5:52
+0:05
30K
18.64 mi11:49:521:49:335:5318:21
5:54
+0:02
20M
20.00 mi11:57:511:57:325:537:59
5:52
-0:02
21M
21.00 mi12:03:562:03:375:536:05
6:05
+0:13
35K
21.75 mi12:08:092:07:505:534:13
5:38
-0:27
23M
23.00 mi12:15:302:15:115:537:21
5:52
+0:14
24M
24.00 mi12:21:152:20:565:525:45
5:45
-0:07
40K
24.85 mi12:26:182:25:595:525:03
5:54
+0:09
25.2M
25.20 mi12:28:312:28:125:532:13
6:26
+0:32
Finish
26.22 mi12:34:132:33:545:525:42
5:36
-0:50

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

5:36 /mi

Average Pace

5:52 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:41

99% of race

Time at Steady Pace

2:13

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:52 /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 mi10:18:3218:135:5218:13
5:52
#720
10K
6.21 mi10:36:4436:255:5218:12
5:51
#716
15K
9.32 mi10:55:0554:465:5318:21
5:54
#729
20K
12.43 mi11:13:211:13:025:5318:16
5:53
#679
Half
13.11 mi11:17:181:16:595:523:57
5:47
#671
25K
15.53 mi11:31:311:31:125:5214:13
5:52
#624
30K
18.64 mi11:49:521:49:335:5318:21
5:54
#549
20M
20.00 mi11:57:511:57:325:537:59
5:52
#514
21M
21.00 mi12:03:562:03:375:536:05
6:05
#479
35K
21.75 mi12:08:092:07:505:534:13
5:38
#458
23M
23.00 mi12:15:302:15:115:537:21
5:52
#431
24M
24.00 mi12:21:152:20:565:525:45
5:45
#412
40K
24.85 mi12:26:182:25:595:525:03
5:54
#397
25.2M
25.20 mi12:28:312:28:125:532:13
6:26
#392
Finish
26.22 mi12:34:132:33:545:525:42
5:36
#367
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi720669669768(Top 3%)719(Top 4%)719(Top 13%)
10K6.21 mi3.10 mi716+4667+2667+2725(Top 3%)680(Top 4%)680(Top 12%)
15K9.32 mi3.11 mi729-13680-13680-13768(Top 3%)719(Top 4%)719(Top 13%)
20K12.43 mi3.11 mi679+50632+48632+48568(Top 2%)524(Top 3%)524(Top 9%)
Half13.11 mi0.68 mi671+8624+8624+8547(Top 2%)513(Top 3%)513(Top 9%)
25K15.53 mi2.42 mi624+47578+46578+46500(Top 2%)466(Top 3%)466(Top 8%)
30K18.64 mi3.11 mi549+75504+74504+74362(Top 1%)335(Top 2%)335(Top 6%)
20M20.00 mi1.36 mi514+35470+34470+34253(Top 0.9%)233(Top 1%)233(Top 4%)
21M21.00 mi1.00 mi479+35442+28442+28181(Top 0.6%)167(Top 1%)167(Top 3%)
35K21.75 mi0.75 mi458+21422+20422+20211(Top 0.7%)192(Top 1%)192(Top 3%)
23M23.00 mi1.25 mi431+27397+25397+25214(Top 0.8%)198(Top 1%)198(Top 4%)
24M24.00 mi1.00 mi412+19381+16381+16233(Top 0.8%)213(Top 1%)213(Top 4%)
40K24.85 mi0.85 mi397+15366+15366+15289(Top 1%)266(Top 2%)266(Top 5%)
25.2M25.20 mi0.35 mi392+5362+4362+4347(Top 1%)321(Top 2%)321(Top 6%)
Finish26.22 mi1.02 mi367+25338+24338+24222(Top 0.8%)209(Top 1%)209(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

768

Males

719

M18-39

719

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

725

Males

680

M18-39

680

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

768

Males

719

M18-39

719

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

568

Males

524

M18-39

524

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

547

Males

513

M18-39

513

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

500

Males

466

M18-39

466

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

362

Males

335

M18-39

335

30K→20M

18.6 - 20.0 mi

Top 0.9%
×5stories
+64ft-50ft

Overall

253

Males

233

M18-39

233

20M→21M

20.0 - 21.0 mi

Top 0.6%
×8stories
+106ft-24ft

Overall

181

Males

167

M18-39

167

21M→35K

21.0 - 21.8 mi

Top 0.7%
×7stories
+17ft-86ft

Overall

211

Males

192

M18-39

192

35K→23M

21.8 - 23.0 mi

Top 0.8%
×5stories
+23ft-63ft

Overall

214

Males

198

M18-39

198

23M→24M

23.0 - 24.0 mi

Top 0.8%
×6stories
+12ft-82ft

Overall

233

Males

213

M18-39

213

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

289

Males

266

M18-39

266

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

347

Males

321

M18-39

321

25.2M→Finish

25.2 - 26.2 mi

Top 0.8%
×2stories
+22ft-21ft

Overall

222

Males

209

M18-39

209

Passing Analysis

Category:
Athletes Passed
438
Passed By
85
Net Change
+353
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#720
5K → 10K3531+4#720#716
10K → 15K1932-13#716#729
15K → 20K577+50#729#679
20K → Half113+8#679#671
Half → 25K525+47#671#624
25K → 30K772+75#624#549
30K → 20M350+35#549#514
20M → 21M350+35#514#479
21M → 35K221+21#479#458
35K → 23M281+27#458#431
23M → 24M190+19#431#412
24M → 40K161+15#412#397
40K → 25.2M50+5#397#392
25.2M → Finish272+25#392#367
TOTALS43885+353
📊

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