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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jason Nacca

Bib: 29134 •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
27:01
3.11 mi
Rank: #21163
Start → 5K
27:01 | 8:42/mi
10K
53:35
6.21 mi
Rank: #20888 (+275)
5K → 10K
26:34 | 8:34/mi
15K
1:20:48
9.32 mi
Rank: #21126 (-238)
10K → 15K
27:13 | 8:46/mi
20K
1:48:38
12.43 mi
Rank: #21254 (-128)
15K → 20K
27:50 | 8:58/mi
HALF
1:54:54
13.11 mi
Rank: #21377 (-123)
20K → HALF
6:16 | 9:12/mi
25K
2:18:46
15.53 mi
Rank: #21946 (-569)
HALF → 25K
23:52 | 9:51/mi
30K
2:50:13
18.64 mi
Rank: #22329 (-383)
25K → 30K
31:27 | 10:08/mi
20M
3:04:52
20.00 mi
Rank: #22592 (-263)
30K → 20M
14:39 | 10:48/mi
21M
3:15:54
21.00 mi
Rank: #22615 (-23)
20M → 21M
11:02 | 11:02/mi
35K
3:23:29
21.75 mi
Rank: #22658 (-43)
21M → 35K
7:35 | 10:09/mi
23M
3:36:45
23.00 mi
Rank: #22737 (-79)
35K → 23M
13:16 | 10:37/mi
24M
3:47:09
24.00 mi
Rank: #22782 (-45)
23M → 24M
10:24 | 10:24/mi
40K
3:56:18
24.85 mi
Rank: #22795 (-13)
24M → 40K
9:09 | 10:43/mi
25.2M
4:00:21
25.20 mi
Rank: #22826 (-31)
40K → 25.2M
4:03 | 11:45/mi
FINISH
4:09:56
26.22 mi
Rank: #22784 (+42)
25.2M → FINISH
9:35 | 9:25/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:54:54
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:15:02
Pace10:19 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2727:018:4227:01
8:42
-
10K
6.21 mi12:16:0153:358:3826:34
8:34
-0:08
15K
9.32 mi12:43:141:20:488:4127:13
8:46
+0:12
20K
12.43 mi13:11:041:48:388:4527:50
8:58
+0:12
HALF
13.11 mi13:17:201:54:548:466:16
9:12
+0:14
25K
15.53 mi13:41:122:18:468:5623:52
9:51
+0:39
30K
18.64 mi14:12:392:50:139:0831:27
10:08
+0:17
20M
20.00 mi14:27:183:04:529:1514:39
10:48
+0:40
21M
21.00 mi14:38:203:15:549:2011:02
11:02
+0:14
35K
21.75 mi14:45:553:23:299:227:35
10:09
-0:53
23M
23.00 mi14:59:113:36:459:2613:16
10:37
+0:28
24M
24.00 mi15:09:353:47:099:2810:24
10:24
-0:13
40K
24.85 mi15:18:443:56:189:319:09
10:43
+0:19
25.2M
25.20 mi15:22:474:00:219:334:03
11:45
+1:02
FINISH
26.22 mi15:32:224:09:569:339:35
9:25
-2:20

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

8:34 /mi

Average Pace

9:32 /mi

Slowest Pace

11:45 /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

2:04:29

50% of race

Time at Steady Pace

1:13:18

29% of race

Time at Slower Pace

52:09

21% of race

Average Pace: 9:32 /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 mi11:49:2727:018:4227:01
8:42
#21163
10K
6.21 mi12:16:0153:358:3826:34
8:34
#20888
15K
9.32 mi12:43:141:20:488:4127:13
8:46
#21126
20K
12.43 mi13:11:041:48:388:4527:50
8:58
#21254
HALF
13.11 mi13:17:201:54:548:466:16
9:12
#21377
25K
15.53 mi13:41:122:18:468:5623:52
9:51
#21946
30K
18.64 mi14:12:392:50:139:0831:27
10:08
#22329
20M
20.00 mi14:27:183:04:529:1514:39
10:48
#22592
21M
21.00 mi14:38:203:15:549:2011:02
11:02
#22615
35K
21.75 mi14:45:553:23:299:227:35
10:09
#22658
23M
23.00 mi14:59:113:36:459:2613:16
10:37
#22737
24M
24.00 mi15:09:353:47:099:2810:24
10:24
#22782
40K
24.85 mi15:18:443:56:189:319:09
10:43
#22795
25.2M
25.20 mi15:22:474:00:219:334:03
11:45
#22826
FINISH
26.22 mi15:32:224:09:569:339:35
9:25
#22784
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 mi21163128121281221535(Top 74%)13043(Top 80%)13043(Top 228%)
10K6.21 mi3.10 mi20888+27512711+10112711+10120620(Top 71%)12609(Top 77%)12609(Top 220%)
15K9.32 mi3.11 mi21126-23812826-11512826-11521535(Top 74%)13043(Top 80%)13043(Top 228%)
20K12.43 mi3.11 mi21254-12812867-4112867-4121750(Top 75%)13126(Top 80%)13126(Top 229%)
HALF13.11 mi0.68 mi21377-12312929-6212929-6223430(Top 81%)13941(Top 85%)13941(Top 244%)
25K15.53 mi2.42 mi21946-56913225-29613225-29623902(Top 82%)14136(Top 87%)14136(Top 247%)
30K18.64 mi3.11 mi22329-38313386-16113386-16123432(Top 81%)13813(Top 85%)13813(Top 241%)
20M20.00 mi1.36 mi22592-26313491-10513491-10524473(Top 84%)14208(Top 87%)14208(Top 248%)
21M21.00 mi1.00 mi22615-2313487+413487+423181(Top 80%)13567(Top 83%)13567(Top 237%)
35K21.75 mi0.75 mi22658-4313494-713494-723488(Top 81%)13689(Top 84%)13689(Top 239%)
23M23.00 mi1.25 mi22737-7913509-1513509-1523609(Top 81%)13683(Top 84%)13683(Top 239%)
24M24.00 mi1.00 mi22782-4513525-1613525-1623838(Top 82%)13756(Top 84%)13756(Top 240%)
40K24.85 mi0.85 mi22795-1313515+1013515+1023651(Top 81%)13616(Top 83%)13616(Top 238%)
25.2M25.20 mi0.35 mi22826-3113533-1813533-1823953(Top 83%)13743(Top 84%)13743(Top 240%)
FINISH26.22 mi1.02 mi22784+4213503+3013503+3022024(Top 76%)12868(Top 79%)12868(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21
+97ft-345ft

Overall

21535

Males

13043

M18-39

13043

5K→10K

3.1 - 6.2 mi

Top 71%
×5
+79ft-138ft

Overall

20620

Males

12609

M18-39

12609

10K→15K

6.2 - 9.3 mi

Top 74%
×3
+67ft-78ft

Overall

21535

Males

13043

M18-39

13043

15K→20K

9.3 - 12.4 mi

Top 75%
×5
+106ft-86ft

Overall

21750

Males

13126

M18-39

13126

20K→HALF

12.4 - 13.1 mi

Top 81%
×2
+19ft-37ft

Overall

23430

Males

13941

M18-39

13941

HALF→25K

13.1 - 15.5 mi

Top 82%
×4
+66ft-88ft

Overall

23902

Males

14136

M18-39

14136

25K→30K

15.5 - 18.6 mi

Top 81%
×9
+181ft-148ft

Overall

23432

Males

13813

M18-39

13813

30K→20M

18.6 - 20.0 mi

Top 84%
×5
+64ft-50ft

Overall

24473

Males

14208

M18-39

14208

20M→21M

20.0 - 21.0 mi

Top 80%
×8
+106ft-24ft

Overall

23181

Males

13567

M18-39

13567

21M→35K

21.0 - 21.8 mi

Top 81%
×7
+17ft-86ft

Overall

23488

Males

13689

M18-39

13689

35K→23M

21.8 - 23.0 mi

Top 81%
×5
+23ft-63ft

Overall

23609

Males

13683

M18-39

13683

23M→24M

23.0 - 24.0 mi

Top 82%
×6
+12ft-82ft

Overall

23838

Males

13756

M18-39

13756

24M→40K

24.0 - 24.9 mi

Top 81%
×1
+6ft-20ft

Overall

23651

Males

13616

M18-39

13616

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1
+13ft-16ft

Overall

23953

Males

13743

M18-39

13743

25.2M→FINISH

25.2 - 26.2 mi

Top 76%
×2
+22ft-21ft

Overall

22024

Males

12868

M18-39

12868

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1109*
Passed By
1786
Net Change
-1621
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21163
5K → 10K456*181+275#21163#20888
10K → 15K111200-238#20888#21126
15K → 20K117200-128#21126#21254
20K → HALF14137-123#21254#21377
HALF → 25K25200-569#21377#21946
25K → 30K78200-383#21946#22329
30K → 20M32200-263#22329#22592
20M → 21M5881-23#22592#22615
21M → 35K2265-43#22615#22658
35K → 23M45124-79#22658#22737
23M → 24M2772-45#22737#22782
24M → 40K5265-13#22782#22795
40K → 25.2M738-31#22795#22826
25.2M → FINISH6523+42#22826#22784
TOTALS1109*1786-1621

* 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

Activity Data

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