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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chester Janiszewski

Bib: 26558 β€’M β€’Age: N/A

NJ

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
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
32:59
3.11 mi
Rank: #27397
Start β†’ 5K
32:59 | 10:37/mi
10K
1:07:03
6.21 mi
Rank: #27531 (-134)
5K β†’ 10K
34:04 | 10:58/mi
15K
1:41:04
9.32 mi
Rank: #27487 (+44)
10K β†’ 15K
34:01 | 10:57/mi
20K
2:15:48
12.43 mi
Rank: #27422 (+65)
15K β†’ 20K
34:44 | 11:11/mi
HALF
2:23:23
13.11 mi
Rank: #27428 (-6)
20K β†’ HALF
7:35 | 11:08/mi
25K
2:51:18
15.53 mi
Rank: #27350 (+78)
HALF β†’ 25K
27:55 | 11:31/mi
30K
3:29:04
18.64 mi
Rank: #27277 (+73)
25K β†’ 30K
37:46 | 12:10/mi
20M
3:45:42
20.00 mi
Rank: #27244 (+33)
30K β†’ 20M
16:38 | 12:15/mi
21M
3:58:42
21.00 mi
Rank: #27236 (+8)
20M β†’ 21M
13:00 | 13:00/mi
35K
4:07:50
21.75 mi
Rank: #27230 (+6)
21M β†’ 35K
9:08 | 12:13/mi
23M
4:23:38
23.00 mi
Rank: #27228 (+2)
35K β†’ 23M
15:48 | 12:38/mi
24M
4:36:27
24.00 mi
Rank: #27253 (-25)
23M β†’ 24M
12:49 | 12:49/mi
40K
4:47:50
24.85 mi
Rank: #27271 (-18)
24M β†’ 40K
11:23 | 13:19/mi
25.2M
4:52:48
25.20 mi
Rank: #27285 (-14)
40K β†’ 25.2M
4:58 | 14:25/mi
FINISH
5:05:43
26.22 mi
Rank: #27341 (-56)
25.2M β†’ FINISH
12:55 | 12:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:23:23
Pace10:57 /mi
2nd Half
Distance13.11 mi
Time2:42:20
Pace12:23 /mi
πŸ“ŠPositive Split: 13.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:2832:5910:3732:59
10:37
-
10K
6.21 mi12:15:321:07:0310:4834:04
10:58
+0:21
15K
9.32 mi12:49:331:41:0410:5134:01
10:57
-0:01
20K
12.43 mi13:24:172:15:4810:5634:44
11:11
+0:14
HALF
13.11 mi13:31:522:23:2310:577:35
11:08
-0:03
25K
15.53 mi13:59:472:51:1811:0227:55
11:31
+0:23
30K
18.64 mi14:37:333:29:0411:1337:46
12:10
+0:39
20M
20.00 mi14:54:113:45:4211:1816:38
12:15
+0:05
21M
21.00 mi15:07:113:58:4211:2313:00
13:00
+0:45
35K
21.75 mi15:16:194:07:5011:249:08
12:13
-0:47
23M
23.00 mi15:32:074:23:3811:2815:48
12:38
+0:25
24M
24.00 mi15:44:564:36:2711:3212:49
12:49
+0:11
40K
24.85 mi15:56:194:47:5011:3511:23
13:19
+0:30
25.2M
25.20 mi16:01:174:52:4811:384:58
14:25
+1:06
FINISH
26.22 mi16:14:125:05:4311:4112:55
12:41
-1:44

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

10:37 /mi

Average Pace

11:40 /mi

Slowest Pace

14:25 /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

2:51:18

56% of race

Time at Steady Pace

1:32:15

30% of race

Time at Slower Pace

42:10

14% of race

Average Pace: 11:40 /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 mi11:41:2832:5910:3732:59
10:37
#27397
10K
6.21 mi12:15:321:07:0310:4834:04
10:58
#27531
15K
9.32 mi12:49:331:41:0410:5134:01
10:57
#27487
20K
12.43 mi13:24:172:15:4810:5634:44
11:11
#27422
HALF
13.11 mi13:31:522:23:2310:577:35
11:08
#27428
25K
15.53 mi13:59:472:51:1811:0227:55
11:31
#27350
30K
18.64 mi14:37:333:29:0411:1337:46
12:10
#27277
20M
20.00 mi14:54:113:45:4211:1816:38
12:15
#27244
21M
21.00 mi15:07:113:58:4211:2313:00
13:00
#27236
35K
21.75 mi15:16:194:07:5011:249:08
12:13
#27230
23M
23.00 mi15:32:074:23:3811:2815:48
12:38
#27228
24M
24.00 mi15:44:564:36:2711:3212:49
12:49
#27253
40K
24.85 mi15:56:194:47:5011:3511:23
13:19
#27271
25.2M
25.20 mi16:01:174:52:4811:384:58
14:25
#27285
FINISH
26.22 mi16:14:125:05:4311:4112:55
12:41
#27341
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 mi27397157871578727359(Top 94%)15734(Top 96%)15734(Top 652%)
10K6.21 mi3.10 mi27531-13415836-4915836-4927634(Top 95%)15851(Top 97%)15851(Top 657%)
15K9.32 mi3.11 mi27487+4415793+4315793+4327359(Top 94%)15734(Top 96%)15734(Top 652%)
20K12.43 mi3.11 mi27422+6515773+2015773+2027204(Top 94%)15679(Top 96%)15679(Top 650%)
HALF13.11 mi0.68 mi27428-615771+215771+227499(Top 95%)15751(Top 96%)15751(Top 653%)
25K15.53 mi2.42 mi27350+7815731+4015731+4027022(Top 93%)15543(Top 95%)15543(Top 644%)
30K18.64 mi3.11 mi27277+7315687+4415687+4426985(Top 93%)15439(Top 94%)15439(Top 640%)
20M20.00 mi1.36 mi27244+3315662+2515662+2526685(Top 92%)15238(Top 93%)15238(Top 631%)
21M21.00 mi1.00 mi27236+815646+1615646+1626389(Top 91%)15075(Top 92%)15075(Top 625%)
35K21.75 mi0.75 mi27230+615642+415642+426967(Top 93%)15328(Top 94%)15328(Top 635%)
23M23.00 mi1.25 mi27228+215630+1215630+1226941(Top 93%)15285(Top 94%)15285(Top 633%)
24M24.00 mi1.00 mi27253-25156301563027486(Top 95%)15530(Top 95%)15530(Top 644%)
40K24.85 mi0.85 mi27271-1815628+215628+227348(Top 94%)15455(Top 95%)15455(Top 640%)
25.2M25.20 mi0.35 mi27285-1415630-215630-227536(Top 95%)15542(Top 95%)15542(Top 644%)
FINISH26.22 mi1.02 mi27341-5615651-2115651-2128002(Top 96%)15790(Top 97%)15790(Top 654%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
Γ—21
+97ft-345ft

Overall

27359

Males

15734

M45-49

15734

5K→10K

3.1 - 6.2 mi

Top 95%
Γ—5
+79ft-138ft

Overall

27634

Males

15851

M45-49

15851

10K→15K

6.2 - 9.3 mi

Top 94%
Γ—3
+67ft-78ft

Overall

27359

Males

15734

M45-49

15734

15K→20K

9.3 - 12.4 mi

Top 94%
Γ—5
+106ft-86ft

Overall

27204

Males

15679

M45-49

15679

20K→HALF

12.4 - 13.1 mi

Top 95%
Γ—2
+19ft-37ft

Overall

27499

Males

15751

M45-49

15751

HALF→25K

13.1 - 15.5 mi

Top 93%
Γ—4
+66ft-88ft

Overall

27022

Males

15543

M45-49

15543

25K→30K

15.5 - 18.6 mi

Top 93%
Γ—9
+181ft-148ft

Overall

26985

Males

15439

M45-49

15439

30K→20M

18.6 - 20.0 mi

Top 92%
Γ—5
+64ft-50ft

Overall

26685

Males

15238

M45-49

15238

20M→21M

20.0 - 21.0 mi

Top 91%
Γ—8
+106ft-24ft

Overall

26389

Males

15075

M45-49

15075

21M→35K

21.0 - 21.8 mi

Top 93%
Γ—7
+17ft-86ft

Overall

26967

Males

15328

M45-49

15328

35K→23M

21.8 - 23.0 mi

Top 93%
Γ—5
+23ft-63ft

Overall

26941

Males

15285

M45-49

15285

23M→24M

23.0 - 24.0 mi

Top 95%
Γ—6
+12ft-82ft

Overall

27486

Males

15530

M45-49

15530

24M→40K

24.0 - 24.9 mi

Top 94%
Γ—1
+6ft-20ft

Overall

27348

Males

15455

M45-49

15455

40K→25.2M

24.9 - 25.2 mi

Top 95%
Γ—1
+13ft-16ft

Overall

27536

Males

15542

M45-49

15542

25.2M→FINISH

25.2 - 26.2 mi

Top 96%
Γ—2
+22ft-21ft

Overall

28002

Males

15790

M45-49

15790

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
830
Passed By
738
Net Change
+56
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#27397
5K β†’ 10K102200-134#27397#27531
10K β†’ 15K13389+44#27531#27487
15K β†’ 20K12863+65#27487#27422
20K β†’ HALF3339-6#27422#27428
HALF β†’ 25K10931+78#27428#27350
25K β†’ 30K12249+73#27350#27277
30K β†’ 20M5522+33#27277#27244
20M β†’ 21M4032+8#27244#27236
21M β†’ 35K2721+6#27236#27230
35K β†’ 23M3028+2#27230#27228
23M β†’ 24M2449-25#27228#27253
24M β†’ 40K1432-18#27253#27271
40K β†’ 25.2M620-14#27271#27285
25.2M β†’ FINISH763-56#27285#27341
TOTALS830738+56
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace 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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