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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jasper Sieniewicz

Bib: 29179 •M •Age: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
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
29:52
3.11 mi
Rank: #24828
Start → 5K
29:52 | 9:37/mi
10K
58:11
6.21 mi
Rank: #24119 (+709)
5K → 10K
28:19 | 9:07/mi
15K
1:25:57
9.32 mi
Rank: #23632 (+487)
10K → 15K
27:46 | 8:57/mi
20K
1:54:17
12.43 mi
Rank: #23339 (+293)
15K → 20K
28:20 | 9:08/mi
HALF
2:00:26
13.11 mi
Rank: #23313 (+26)
20K → HALF
6:09 | 9:02/mi
25K
2:22:48
15.53 mi
Rank: #23069 (+244)
HALF → 25K
22:22 | 9:14/mi
30K
2:53:02
18.64 mi
Rank: #22933 (+136)
25K → 30K
30:14 | 9:44/mi
20M
3:06:23
20.00 mi
Rank: #22851 (+82)
30K → 20M
13:21 | 9:50/mi
21M
3:16:42
21.00 mi
Rank: #22736 (+115)
20M → 21M
10:19 | 10:19/mi
35K
3:24:03
21.75 mi
Rank: #22738 (-2)
21M → 35K
7:21 | 9:50/mi
23M
3:37:26
23.00 mi
Rank: #22813 (-75)
35K → 23M
13:23 | 10:42/mi
24M
3:48:05
24.00 mi
Rank: #22897 (-84)
23M → 24M
10:39 | 10:39/mi
40K
3:57:25
24.85 mi
Rank: #22937 (-40)
24M → 40K
9:20 | 10:55/mi
25.2M
4:01:19
25.20 mi
Rank: #22924 (+13)
40K → 25.2M
3:54 | 11:19/mi
FINISH
4:11:21
26.22 mi
Rank: #22942 (-18)
25.2M → FINISH
10:02 | 9:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:00:26
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:10:55
Pace10:00 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:5229:529:3729:52
9:37
-
10K
6.21 mi12:24:1158:119:2228:19
9:07
-0:30
15K
9.32 mi12:51:571:25:579:1427:46
8:57
-0:10
20K
12.43 mi13:20:171:54:179:1228:20
9:08
+0:11
HALF
13.11 mi13:26:262:00:269:126:09
9:02
-0:06
25K
15.53 mi13:48:482:22:489:1222:22
9:14
+0:12
30K
18.64 mi14:19:022:53:029:1730:14
9:44
+0:30
20M
20.00 mi14:32:233:06:239:2013:21
9:50
+0:06
21M
21.00 mi14:42:423:16:429:2310:19
10:19
+0:29
35K
21.75 mi14:50:033:24:039:237:21
9:50
-0:29
23M
23.00 mi15:03:263:37:269:2813:23
10:42
+0:52
24M
24.00 mi15:14:053:48:059:3110:39
10:39
-0:03
40K
24.85 mi15:23:253:57:259:349:20
10:55
+0:16
25.2M
25.20 mi15:27:194:01:199:353:54
11:19
+0:24
FINISH
26.22 mi15:37:214:11:219:3610:02
9:51
-1:28

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

8:57 /mi

Average Pace

9:36 /mi

Slowest Pace

11:19 /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

1:52:56

45% of race

Time at Steady Pace

1:30:50

36% of race

Time at Slower Pace

47:35

19% of race

Average Pace: 9:35 /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 mi11:55:5229:529:3729:52
9:37
#24828
10K
6.21 mi12:24:1158:119:2228:19
9:07
#24119
15K
9.32 mi12:51:571:25:579:1427:46
8:57
#23632
20K
12.43 mi13:20:171:54:179:1228:20
9:08
#23339
HALF
13.11 mi13:26:262:00:269:126:09
9:02
#23313
25K
15.53 mi13:48:482:22:489:1222:22
9:14
#23069
30K
18.64 mi14:19:022:53:029:1730:14
9:44
#22933
20M
20.00 mi14:32:233:06:239:2013:21
9:50
#22851
21M
21.00 mi14:42:423:16:429:2310:19
10:19
#22736
35K
21.75 mi14:50:033:24:039:237:21
9:50
#22738
23M
23.00 mi15:03:263:37:269:2813:23
10:42
#22813
24M
24.00 mi15:14:053:48:059:3110:39
10:39
#22897
40K
24.85 mi15:23:253:57:259:349:20
10:55
#22937
25.2M
25.20 mi15:27:194:01:199:353:54
11:19
#22924
FINISH
26.22 mi15:37:214:11:219:3610:02
9:51
#22942
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24828146391463922384(Top 77%)13473(Top 82%)13473(Top 235%)
10K6.21 mi3.10 mi24119+70914310+32914310+32923295(Top 80%)13896(Top 85%)13896(Top 243%)
15K9.32 mi3.11 mi23632+48714068+24214068+24222384(Top 77%)13473(Top 82%)13473(Top 235%)
20K12.43 mi3.11 mi23339+29313917+15113917+15122437(Top 77%)13464(Top 82%)13464(Top 235%)
HALF13.11 mi0.68 mi23313+2613894+2313894+2322830(Top 79%)13662(Top 84%)13662(Top 239%)
25K15.53 mi2.42 mi23069+24413776+11813776+11822121(Top 76%)13290(Top 81%)13290(Top 232%)
30K18.64 mi3.11 mi22933+13613675+10113675+10122365(Top 77%)13321(Top 82%)13321(Top 233%)
20M20.00 mi1.36 mi22851+8213615+6013615+6022093(Top 76%)13118(Top 80%)13118(Top 229%)
21M21.00 mi1.00 mi22736+11513540+7513540+7521450(Top 74%)12758(Top 78%)12758(Top 223%)
35K21.75 mi0.75 mi22738-213529+1113529+1122685(Top 78%)13298(Top 81%)13298(Top 232%)
23M23.00 mi1.25 mi22813-7513550-2113550-2123813(Top 82%)13781(Top 84%)13781(Top 241%)
24M24.00 mi1.00 mi22897-8413583-3313583-3324381(Top 84%)14010(Top 86%)14010(Top 245%)
40K24.85 mi0.85 mi22937-4013594-1113594-1124070(Top 83%)13818(Top 85%)13818(Top 241%)
25.2M25.20 mi0.35 mi22924+1313580+1413580+1423087(Top 80%)13344(Top 82%)13344(Top 233%)
FINISH26.22 mi1.02 mi22942-1813581-113581-123413(Top 81%)13509(Top 83%)13509(Top 236%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21
+97ft-345ft

Overall

22384

Males

13473

M18-39

13473

5K→10K

3.1 - 6.2 mi

Top 80%
×5
+79ft-138ft

Overall

23295

Males

13896

M18-39

13896

10K→15K

6.2 - 9.3 mi

Top 77%
×3
+67ft-78ft

Overall

22384

Males

13473

M18-39

13473

15K→20K

9.3 - 12.4 mi

Top 77%
×5
+106ft-86ft

Overall

22437

Males

13464

M18-39

13464

20K→HALF

12.4 - 13.1 mi

Top 79%
×2
+19ft-37ft

Overall

22830

Males

13662

M18-39

13662

HALF→25K

13.1 - 15.5 mi

Top 76%
×4
+66ft-88ft

Overall

22121

Males

13290

M18-39

13290

25K→30K

15.5 - 18.6 mi

Top 77%
×9
+181ft-148ft

Overall

22365

Males

13321

M18-39

13321

30K→20M

18.6 - 20.0 mi

Top 76%
×5
+64ft-50ft

Overall

22093

Males

13118

M18-39

13118

20M→21M

20.0 - 21.0 mi

Top 74%
×8
+106ft-24ft

Overall

21450

Males

12758

M18-39

12758

21M→35K

21.0 - 21.8 mi

Top 78%
×7
+17ft-86ft

Overall

22685

Males

13298

M18-39

13298

35K→23M

21.8 - 23.0 mi

Top 82%
×5
+23ft-63ft

Overall

23813

Males

13781

M18-39

13781

23M→24M

23.0 - 24.0 mi

Top 84%
×6
+12ft-82ft

Overall

24381

Males

14010

M18-39

14010

24M→40K

24.0 - 24.9 mi

Top 83%
×1
+6ft-20ft

Overall

24070

Males

13818

M18-39

13818

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1
+13ft-16ft

Overall

23087

Males

13344

M18-39

13344

25.2M→FINISH

25.2 - 26.2 mi

Top 81%
×2
+22ft-21ft

Overall

23413

Males

13509

M18-39

13509

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2547*
Passed By
661
Net Change
+1886
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24828
5K → 10K739*30+709#24828#24119
10K → 15K500*13+487#24119#23632
15K → 20K324*31+293#23632#23339
20K → HALF4519+26#23339#23313
HALF → 25K269*25+244#23313#23069
25K → 30K210*74+136#23069#22933
30K → 20M11937+82#22933#22851
20M → 21M13722+115#22851#22736
21M → 35K4345-2#22736#22738
35K → 23M39114-75#22738#22813
23M → 24M26110-84#22813#22897
24M → 40K3272-40#22897#22937
40K → 25.2M2815+13#22937#22924
25.2M → FINISH3654-18#22924#22942
TOTALS2547*661+1886

* 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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

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