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BOSTON MARATHON 2026

Stephan Seefeld

Bib: 9431•M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 21%
Gender (Male)
#0 / 16340
Top 34%
Masters (Masters Men)
#0 / 10617
Top 19%
Age Group (M40-44)
#0 / 2198
Top 47%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
20:52
3.11 mi
Rank: #6047
Start → 5K
20:52 | 6:43/mi
10K
41:48
6.21 mi
Rank: #6172 (-125)
5K → 10K
20:56 | 6:45/mi
15K
1:02:49
9.32 mi
Rank: #6232 (-60)
10K → 15K
21:01 | 6:46/mi
20K
1:23:41
12.43 mi
Rank: #5939 (+293)
15K → 20K
20:52 | 6:43/mi
HALF
1:28:08
13.11 mi
Rank: #5857 (+82)
20K → HALF
4:27 | 6:32/mi
25K
1:44:47
15.53 mi
Rank: #5932 (-75)
HALF → 25K
16:39 | 6:52/mi
30K
2:06:54
18.64 mi
Rank: #6093 (-161)
25K → 30K
22:07 | 7:08/mi
20M
2:16:50
20.00 mi
Rank: #6239 (-146)
30K → 20M
9:56 | 7:19/mi
21M
2:24:33
21.00 mi
Rank: #6353 (-114)
20M → 21M
7:43 | 7:43/mi
35K
2:29:48
21.75 mi
Rank: #6356 (-3)
21M → 35K
5:15 | 7:02/mi
23M
2:38:45
23.00 mi
Rank: #6346 (+10)
35K → 23M
8:57 | 7:10/mi
24M
2:45:41
24.00 mi
Rank: #6316 (+30)
23M → 24M
6:56 | 6:56/mi
40K
2:51:41
24.85 mi
Rank: #6260 (+56)
24M → 40K
6:00 | 7:02/mi
25.2M
2:54:19
25.20 mi
Rank: #6238 (+22)
40K → 25.2M
2:38 | 7:39/mi
FINISH
3:01:26
26.22 mi
Rank: #6231 (+7)
25.2M → FINISH
7:07 | 7:00/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:28:08
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:33:18
Pace7:08 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:36:3420:526:4320:52
6:43
-
10K
6.21 mi10:57:3041:486:4420:56
6:45
+0:02
15K
9.32 mi11:18:311:02:496:4521:01
6:46
+0:01
20K
12.43 mi11:39:231:23:416:4520:52
6:43
-0:03
HALF
13.11 mi11:43:501:28:086:444:27
6:32
-0:11
25K
15.53 mi12:00:291:44:476:4516:39
6:52
+0:20
30K
18.64 mi12:22:362:06:546:4922:07
7:08
+0:16
20M
20.00 mi12:32:322:16:506:519:56
7:19
+0:11
21M
21.00 mi12:40:152:24:336:547:43
7:43
+0:24
35K
21.75 mi12:45:302:29:486:545:15
7:02
-0:41
23M
23.00 mi12:54:272:38:456:558:57
7:10
+0:08
24M
24.00 mi13:01:232:45:416:556:56
6:56
-0:14
40K
24.85 mi13:07:232:51:416:556:00
7:02
+0:06
25.2M
25.20 mi13:10:012:54:196:562:38
7:39
+0:37
FINISH
26.22 mi13:17:083:01:266:567:07
7:00
-0:39

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:32 /mi

Average Pace

6:55 /mi

Slowest Pace

7:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:41:09

89% of race

Time at Steady Pace

12:34

7% of race

Time at Slower Pace

7:43

4% of race

Average Pace: 6:55 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:36:3420:526:4320:52
6:43
#6047
10K
6.21 mi10:57:3041:486:4420:56
6:45
#6172
15K
9.32 mi11:18:311:02:496:4521:01
6:46
#6232
20K
12.43 mi11:39:231:23:416:4520:52
6:43
#5939
HALF
13.11 mi11:43:501:28:086:444:27
6:32
#5857
25K
15.53 mi12:00:291:44:476:4516:39
6:52
#5932
30K
18.64 mi12:22:362:06:546:4922:07
7:08
#6093
20M
20.00 mi12:32:322:16:506:519:56
7:19
#6239
21M
21.00 mi12:40:152:24:336:547:43
7:43
#6353
35K
21.75 mi12:45:302:29:486:545:15
7:02
#6356
23M
23.00 mi12:54:272:38:456:558:57
7:10
#6346
24M
24.00 mi13:01:232:45:416:556:56
6:56
#6316
40K
24.85 mi13:07:232:51:416:556:00
7:02
#6260
25.2M
25.20 mi13:10:012:54:196:562:38
7:39
#6238
FINISH
26.22 mi13:17:083:01:266:567:07
7:00
#6231
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6047550955096466(Top 22%)5786(Top 35%)5786(Top 263%)
10K6.21 mi3.10 mi6172-1255603-945603-946350(Top 22%)5724(Top 35%)5724(Top 260%)
15K9.32 mi3.11 mi6232-605648-455648-456466(Top 22%)5786(Top 35%)5786(Top 263%)
20K12.43 mi3.11 mi5939+2935417+2315417+2315345(Top 18%)4923(Top 30%)4923(Top 224%)
HALF13.11 mi0.68 mi5857+825354+635354+634671(Top 16%)4386(Top 27%)4386(Top 200%)
25K15.53 mi2.42 mi5932-755398-445398-446362(Top 22%)5637(Top 34%)5637(Top 256%)
30K18.64 mi3.11 mi6093-1615487-895487-896797(Top 23%)5853(Top 36%)5853(Top 266%)
20M20.00 mi1.36 mi6239-1465580-935580-937711(Top 27%)6319(Top 39%)6319(Top 287%)
21M21.00 mi1.00 mi6353-1145651-715651-717895(Top 27%)6297(Top 39%)6297(Top 286%)
35K21.75 mi0.75 mi6356-3565156517203(Top 25%)5938(Top 36%)5938(Top 270%)
23M23.00 mi1.25 mi6346+105643+85643+86447(Top 22%)5395(Top 33%)5395(Top 245%)
24M24.00 mi1.00 mi6316+305612+315612+316019(Top 21%)5042(Top 31%)5042(Top 229%)
40K24.85 mi0.85 mi6260+565555+575555+575602(Top 19%)4711(Top 29%)4711(Top 214%)
25.2M25.20 mi0.35 mi6238+225534+215534+215997(Top 21%)4916(Top 30%)4916(Top 224%)
FINISH26.22 mi1.02 mi6231+75516+185516+187399(Top 25%)5714(Top 35%)5714(Top 260%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21
+97ft-345ft

Overall

6466

Males

5786

M40-44

5786

5K→10K

3.1 - 6.2 mi

Top 22%
×5
+79ft-138ft

Overall

6350

Males

5724

M40-44

5724

10K→15K

6.2 - 9.3 mi

Top 22%
×3
+67ft-78ft

Overall

6466

Males

5786

M40-44

5786

15K→20K

9.3 - 12.4 mi

Top 18%
×5
+106ft-86ft

Overall

5345

Males

4923

M40-44

4923

20K→HALF

12.4 - 13.1 mi

Top 16%
×2
+19ft-37ft

Overall

4671

Males

4386

M40-44

4386

HALF→25K

13.1 - 15.5 mi

Top 22%
×4
+66ft-88ft

Overall

6362

Males

5637

M40-44

5637

25K→30K

15.5 - 18.6 mi

Top 23%
×9
+181ft-148ft

Overall

6797

Males

5853

M40-44

5853

30K→20M

18.6 - 20.0 mi

Top 27%
×5
+64ft-50ft

Overall

7711

Males

6319

M40-44

6319

20M→21M

20.0 - 21.0 mi

Top 27%
×8
+106ft-24ft

Overall

7895

Males

6297

M40-44

6297

21M→35K

21.0 - 21.8 mi

Top 25%
×7
+17ft-86ft

Overall

7203

Males

5938

M40-44

5938

35K→23M

21.8 - 23.0 mi

Top 22%
×5
+23ft-63ft

Overall

6447

Males

5395

M40-44

5395

23M→24M

23.0 - 24.0 mi

Top 21%
×6
+12ft-82ft

Overall

6019

Males

5042

M40-44

5042

24M→40K

24.0 - 24.9 mi

Top 19%
×1
+6ft-20ft

Overall

5602

Males

4711

M40-44

4711

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1
+13ft-16ft

Overall

5997

Males

4916

M40-44

4916

25.2M→FINISH

25.2 - 26.2 mi

Top 25%
×2
+22ft-21ft

Overall

7399

Males

5714

M40-44

5714

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1280*
Passed By
1330
Net Change
-184
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6047
5K → 10K148200-125#6047#6172
10K → 15K116176-60#6172#6232
15K → 20K312*19+293#6232#5939
20K → HALF864+82#5939#5857
HALF → 25K82157-75#5857#5932
25K → 30K100200-161#5932#6093
30K → 20M40186-146#6093#6239
20M → 21M39153-114#6239#6353
21M → 35K4750-3#6353#6356
35K → 23M8474+10#6356#6346
23M → 24M6939+30#6346#6316
24M → 40K7317+56#6316#6260
40K → 25.2M3210+22#6260#6238
25.2M → FINISH5245+7#6238#6231
TOTALS1280*1330-184

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing