Sebastian Janker

Bib: 9827β€’M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Top 35%
Gender (Male)
#0 / 16340
Top 48%
Masters (Masters Men)
#0 / 10617
Top 37%
Age Group (M45-49)
#0 / 2413
Race Day Weather
51Β°/41Β°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
22:21
3.11 mi
Rank: #10098
Start β†’ 5K
22:21 | 7:12/mi
10K
44:52
6.21 mi
Rank: #10374 (-276)
5K β†’ 10K
22:31 | 7:15/mi
15K
1:07:43
9.32 mi
Rank: #10730 (-356)
10K β†’ 15K
22:51 | 7:22/mi
20K
1:30:32
12.43 mi
Rank: #10658 (+72)
15K β†’ 20K
22:49 | 7:21/mi
HALF
1:35:21
13.11 mi
Rank: #10547 (+111)
20K β†’ HALF
4:49 | 7:04/mi
25K
1:53:18
15.53 mi
Rank: #10527 (+20)
HALF β†’ 25K
17:57 | 7:25/mi
30K
2:16:54
18.64 mi
Rank: #10456 (+71)
25K β†’ 30K
23:36 | 7:36/mi
20M
2:27:07
20.00 mi
Rank: #10330 (+126)
30K β†’ 20M
10:13 | 7:32/mi
21M
2:35:07
21.00 mi
Rank: #10278 (+52)
20M β†’ 21M
8:00 | 8:00/mi
35K
2:40:33
21.75 mi
Rank: #10206 (+72)
21M β†’ 35K
5:26 | 7:16/mi
23M
2:50:17
23.00 mi
Rank: #10205 (+1)
35K β†’ 23M
9:44 | 7:47/mi
24M
2:57:55
24.00 mi
Rank: #10215 (-10)
23M β†’ 24M
7:38 | 7:38/mi
40K
3:04:36
24.85 mi
Rank: #10246 (-31)
24M β†’ 40K
6:41 | 7:50/mi
25.2M
3:07:25
25.20 mi
Rank: #10217 (+29)
40K β†’ 25.2M
2:49 | 8:11/mi
FINISH
3:14:50
26.22 mi
Rank: #10176 (+41)
25.2M β†’ FINISH
7:25 | 7:17/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:35:21
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:39:29
Pace7:36 /mi
πŸ“ŠPositive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:38:5822:217:1222:21
7:12
-
10K
6.21 mi11:01:2944:527:1422:31
7:15
+0:03
15K
9.32 mi11:24:201:07:437:1622:51
7:22
+0:07
20K
12.43 mi11:47:091:30:327:1822:49
7:21
-0:01
HALF
13.11 mi11:51:581:35:217:174:49
7:04
-0:17
25K
15.53 mi12:09:551:53:187:1817:57
7:25
+0:21
30K
18.64 mi12:33:312:16:547:2123:36
7:36
+0:11
20M
20.00 mi12:43:442:27:077:2210:13
7:32
-0:04
21M
21.00 mi12:51:442:35:077:248:00
8:00
+0:28
35K
21.75 mi12:57:102:40:337:235:26
7:16
-0:44
23M
23.00 mi13:06:542:50:177:259:44
7:47
+0:31
24M
24.00 mi13:14:322:57:557:257:38
7:38
-0:09
40K
24.85 mi13:21:133:04:367:266:41
7:50
+0:12
25.2M
25.20 mi13:24:023:07:257:272:49
8:11
+0:21
FINISH
26.22 mi13:31:273:14:507:277:25
7:17
-0:54

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

7:04 /mi

Average Pace

7:26 /mi

Slowest Pace

8:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

2:47:36

86% of race

Time at Steady Pace

27:14

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi10:38:5822:217:1222:21
7:12
#10098
10K
6.21 mi11:01:2944:527:1422:31
7:15
#10374
15K
9.32 mi11:24:201:07:437:1622:51
7:22
#10730
20K
12.43 mi11:47:091:30:327:1822:49
7:21
#10658
HALF
13.11 mi11:51:581:35:217:174:49
7:04
#10547
25K
15.53 mi12:09:551:53:187:1817:57
7:25
#10527
30K
18.64 mi12:33:312:16:547:2123:36
7:36
#10456
20M
20.00 mi12:43:442:27:077:2210:13
7:32
#10330
21M
21.00 mi12:51:442:35:077:248:00
8:00
#10278
35K
21.75 mi12:57:102:40:337:235:26
7:16
#10206
23M
23.00 mi13:06:542:50:177:259:44
7:47
#10205
24M
24.00 mi13:14:322:57:557:257:38
7:38
#10215
40K
24.85 mi13:21:133:04:367:266:41
7:50
#10246
25.2M
25.20 mi13:24:023:07:257:272:49
8:11
#10217
FINISH
26.22 mi13:31:273:14:507:277:25
7:17
#10176
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi100988134813411542(Top 40%)8726(Top 53%)8726(Top 362%)
10K6.21 mi3.10 mi10374-2768256-1228256-12210671(Top 37%)8391(Top 51%)8391(Top 348%)
15K9.32 mi3.11 mi10730-3568403-1478403-14711542(Top 40%)8726(Top 53%)8726(Top 362%)
20K12.43 mi3.11 mi10658+728331+728331+7210577(Top 36%)8196(Top 50%)8196(Top 340%)
HALF13.11 mi0.68 mi10547+1118273+588273+589150(Top 32%)7556(Top 46%)7556(Top 313%)
25K15.53 mi2.42 mi10527+208232+418232+4110568(Top 36%)8112(Top 50%)8112(Top 336%)
30K18.64 mi3.11 mi10456+718151+818151+8110398(Top 36%)7897(Top 48%)7897(Top 327%)
20M20.00 mi1.36 mi10330+1268063+888063+889264(Top 32%)7205(Top 44%)7205(Top 299%)
21M21.00 mi1.00 mi10278+528013+508013+509880(Top 34%)7399(Top 45%)7399(Top 307%)
35K21.75 mi0.75 mi10206+727962+517962+519005(Top 31%)6962(Top 43%)6962(Top 289%)
23M23.00 mi1.25 mi10205+17922+407922+4010840(Top 37%)7776(Top 48%)7776(Top 322%)
24M24.00 mi1.00 mi10215-107900+227900+2211056(Top 38%)7816(Top 48%)7816(Top 324%)
40K24.85 mi0.85 mi10246-317901-17901-111120(Top 38%)7754(Top 47%)7754(Top 321%)
25.2M25.20 mi0.35 mi10217+297875+267875+269340(Top 32%)6797(Top 42%)6797(Top 282%)
FINISH26.22 mi1.02 mi10176+417821+547821+549691(Top 33%)6963(Top 43%)6963(Top 289%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
Γ—21
+97ft-345ft

Overall

11542

Males

8726

M45-49

8726

5K→10K

3.1 - 6.2 mi

Top 37%
Γ—5
+79ft-138ft

Overall

10671

Males

8391

M45-49

8391

10K→15K

6.2 - 9.3 mi

Top 40%
Γ—3
+67ft-78ft

Overall

11542

Males

8726

M45-49

8726

15K→20K

9.3 - 12.4 mi

Top 36%
Γ—5
+106ft-86ft

Overall

10577

Males

8196

M45-49

8196

20K→HALF

12.4 - 13.1 mi

Top 32%
Γ—2
+19ft-37ft

Overall

9150

Males

7556

M45-49

7556

HALF→25K

13.1 - 15.5 mi

Top 36%
Γ—4
+66ft-88ft

Overall

10568

Males

8112

M45-49

8112

25K→30K

15.5 - 18.6 mi

Top 36%
Γ—9
+181ft-148ft

Overall

10398

Males

7897

M45-49

7897

30K→20M

18.6 - 20.0 mi

Top 32%
Γ—5
+64ft-50ft

Overall

9264

Males

7205

M45-49

7205

20M→21M

20.0 - 21.0 mi

Top 34%
Γ—8
+106ft-24ft

Overall

9880

Males

7399

M45-49

7399

21M→35K

21.0 - 21.8 mi

Top 31%
Γ—7
+17ft-86ft

Overall

9005

Males

6962

M45-49

6962

35K→23M

21.8 - 23.0 mi

Top 37%
Γ—5
+23ft-63ft

Overall

10840

Males

7776

M45-49

7776

23M→24M

23.0 - 24.0 mi

Top 38%
Γ—6
+12ft-82ft

Overall

11056

Males

7816

M45-49

7816

24M→40K

24.0 - 24.9 mi

Top 38%
Γ—1
+6ft-20ft

Overall

11120

Males

7754

M45-49

7754

40K→25.2M

24.9 - 25.2 mi

Top 32%
Γ—1
+13ft-16ft

Overall

9340

Males

6797

M45-49

6797

25.2M→FINISH

25.2 - 26.2 mi

Top 33%
Γ—2
+22ft-21ft

Overall

9691

Males

6963

M45-49

6963

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1636
Passed By
1712
Net Change
-78
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#10098
5K β†’ 10K134409-276#10098#10374
10K β†’ 15K73429-356#10374#10730
15K β†’ 20K194122+72#10730#10658
20K β†’ HALF1132+111#10658#10547
HALF β†’ 25K134114+20#10547#10527
25K β†’ 30K225154+71#10527#10456
30K β†’ 20M15933+126#10456#10330
20M β†’ 21M11664+52#10330#10278
21M β†’ 35K9119+72#10278#10206
35K β†’ 23M117115+1#10206#10205
23M β†’ 24M8090-10#10205#10215
24M β†’ 40K5586-31#10215#10246
40K β†’ 25.2M5021+29#10246#10217
25.2M β†’ FINISH9554+41#10217#10176
TOTALS16361712-78
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

Loading...

🎨Heatmap Timeline

Loading...

πŸ”„Passing Circle

Loading...

🌊Position Flow

Loading...

πŸƒRace Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing