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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Zac Zarling

Bib: 10504 •M •Age: N/A

IL

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
51°/41°F
overcast clouds
Personalized for Zac

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 9:18/mi at mile 3.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Potential Focus Areas
One-time purchase · Instant access · Downloadable PDF · Shareable report

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
28:54
3.11 mi
Rank: #23803
Start → 5K
28:54 | 9:19/mi
10K
58:06
6.21 mi
Rank: #24083 (-280)
5K → 10K
29:12 | 9:24/mi
15K
1:27:47
9.32 mi
Rank: #24275 (-192)
10K → 15K
29:41 | 9:34/mi
20K
1:57:20
12.43 mi
Rank: #24144 (+131)
15K → 20K
29:33 | 9:31/mi
HALF
2:03:49
13.11 mi
Rank: #24147 (-3)
20K → HALF
6:29 | 9:31/mi
25K
2:27:41
15.53 mi
Rank: #24120 (+27)
HALF → 25K
23:52 | 9:51/mi
30K
3:01:21
18.64 mi
Rank: #24280 (-160)
25K → 30K
33:40 | 10:51/mi
20M
3:15:46
20.00 mi
Rank: #24267 (+13)
30K → 20M
14:25 | 10:37/mi
21M
3:27:13
21.00 mi
Rank: #24253 (+14)
20M → 21M
11:27 | 11:27/mi
35K
3:35:03
21.75 mi
Rank: #24260 (-7)
21M → 35K
7:50 | 10:29/mi
23M
3:48:09
23.00 mi
Rank: #24190 (+70)
35K → 23M
13:06 | 10:29/mi
24M
3:58:27
24.00 mi
Rank: #24145 (+45)
23M → 24M
10:18 | 10:18/mi
40K
4:07:40
24.85 mi
Rank: #24127 (+18)
24M → 40K
9:13 | 10:47/mi
25.2M
4:11:19
25.20 mi
Rank: #24077 (+50)
40K → 25.2M
3:39 | 10:36/mi
FINISH
4:21:12
26.22 mi
Rank: #24044 (+33)
25.2M → FINISH
9:53 | 9:42/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:03:49
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:17:23
Pace10:29 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:4528:549:1928:54
9:19
-
10K
6.21 mi11:15:5758:069:2229:12
9:24
+0:05
15K
9.32 mi11:45:381:27:479:2629:41
9:34
+0:10
20K
12.43 mi12:15:111:57:209:2729:33
9:31
-0:03
HALF
13.11 mi12:21:402:03:499:276:29
9:31
0:00
25K
15.53 mi12:45:322:27:419:3123:52
9:51
+0:20
30K
18.64 mi13:19:123:01:219:4433:40
10:51
+1:00
20M
20.00 mi13:33:373:15:469:4814:25
10:37
-0:14
21M
21.00 mi13:45:043:27:139:5311:27
11:27
+0:50
35K
21.75 mi13:52:543:35:039:547:50
10:29
-0:58
23M
23.00 mi14:06:003:48:099:5613:06
10:29
0:00
24M
24.00 mi14:16:183:58:279:5710:18
10:18
-0:11
40K
24.85 mi14:25:314:07:409:589:13
10:47
+0:29
25.2M
25.20 mi14:29:104:11:199:593:39
10:36
-0:11
FINISH
26.22 mi14:39:034:21:129:599:53
9:42
-0:54

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

9:19 /mi

Average Pace

9:58 /mi

Slowest Pace

11:27 /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

2:37:34

60% of race

Time at Steady Pace

34:53

13% of race

Time at Slower Pace

1:08:45

26% of race

Average Pace: 9:58 /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 mi10:46:4528:549:1928:54
9:19
#23803
10K
6.21 mi11:15:5758:069:2229:12
9:24
#24083
15K
9.32 mi11:45:381:27:479:2629:41
9:34
#24275
20K
12.43 mi12:15:111:57:209:2729:33
9:31
#24144
HALF
13.11 mi12:21:402:03:499:276:29
9:31
#24147
25K
15.53 mi12:45:322:27:419:3123:52
9:51
#24120
30K
18.64 mi13:19:123:01:219:4433:40
10:51
#24280
20M
20.00 mi13:33:373:15:469:4814:25
10:37
#24267
21M
21.00 mi13:45:043:27:139:5311:27
11:27
#24253
35K
21.75 mi13:52:543:35:039:547:50
10:29
#24260
23M
23.00 mi14:06:003:48:099:5613:06
10:29
#24190
24M
24.00 mi14:16:183:58:279:5710:18
10:18
#24145
40K
24.85 mi14:25:314:07:409:589:13
10:47
#24127
25.2M
25.20 mi14:29:104:11:199:593:39
10:36
#24077
FINISH
26.22 mi14:39:034:21:129:599:53
9:42
#24044
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 mi23803141391413924571(Top 85%)14516(Top 89%)14516(Top 602%)
10K6.21 mi3.10 mi24083-28014290-15114290-15124260(Top 84%)14373(Top 88%)14373(Top 596%)
15K9.32 mi3.11 mi24275-19214397-10714397-10724571(Top 85%)14516(Top 89%)14516(Top 602%)
20K12.43 mi3.11 mi24144+13114321+7614321+7623782(Top 82%)14104(Top 86%)14104(Top 585%)
HALF13.11 mi0.68 mi24147-314324-314324-324386(Top 84%)14395(Top 88%)14395(Top 597%)
25K15.53 mi2.42 mi24120+2714293+3114293+3123904(Top 82%)14138(Top 87%)14138(Top 586%)
30K18.64 mi3.11 mi24280-16014343-5014343-5025022(Top 86%)14542(Top 89%)14542(Top 603%)
20M20.00 mi1.36 mi24267+1314320+2314320+2324098(Top 83%)14043(Top 86%)14043(Top 582%)
21M21.00 mi1.00 mi24253+1414300+2014300+2024068(Top 83%)13965(Top 85%)13965(Top 579%)
35K21.75 mi0.75 mi24260-714295+514295+524246(Top 84%)14035(Top 86%)14035(Top 582%)
23M23.00 mi1.25 mi24190+7014233+6214233+6223308(Top 80%)13543(Top 83%)13543(Top 561%)
24M24.00 mi1.00 mi24145+4514196+3714196+3723601(Top 81%)13654(Top 84%)13654(Top 566%)
40K24.85 mi0.85 mi24127+1814176+2014176+2023807(Top 82%)13688(Top 84%)13688(Top 567%)
25.2M25.20 mi0.35 mi24077+5014140+3614140+3621307(Top 73%)12516(Top 77%)12516(Top 519%)
FINISH26.22 mi1.02 mi24044+3314110+3014110+3022967(Top 79%)13301(Top 81%)13301(Top 551%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21
+97ft-345ft

Overall

24571

Males

14516

M45-49

14516

5K→10K

3.1 - 6.2 mi

Top 84%
×5
+79ft-138ft

Overall

24260

Males

14373

M45-49

14373

10K→15K

6.2 - 9.3 mi

Top 85%
×3
+67ft-78ft

Overall

24571

Males

14516

M45-49

14516

15K→20K

9.3 - 12.4 mi

Top 82%
×5
+106ft-86ft

Overall

23782

Males

14104

M45-49

14104

20K→HALF

12.4 - 13.1 mi

Top 84%
×2
+19ft-37ft

Overall

24386

Males

14395

M45-49

14395

HALF→25K

13.1 - 15.5 mi

Top 82%
×4
+66ft-88ft

Overall

23904

Males

14138

M45-49

14138

25K→30K

15.5 - 18.6 mi

Top 86%
×9
+181ft-148ft

Overall

25022

Males

14542

M45-49

14542

30K→20M

18.6 - 20.0 mi

Top 83%
×5
+64ft-50ft

Overall

24098

Males

14043

M45-49

14043

20M→21M

20.0 - 21.0 mi

Top 83%
×8
+106ft-24ft

Overall

24068

Males

13965

M45-49

13965

21M→35K

21.0 - 21.8 mi

Top 84%
×7
+17ft-86ft

Overall

24246

Males

14035

M45-49

14035

35K→23M

21.8 - 23.0 mi

Top 80%
×5
+23ft-63ft

Overall

23308

Males

13543

M45-49

13543

23M→24M

23.0 - 24.0 mi

Top 81%
×6
+12ft-82ft

Overall

23601

Males

13654

M45-49

13654

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23807

Males

13688

M45-49

13688

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1
+13ft-16ft

Overall

21307

Males

12516

M45-49

12516

25.2M→FINISH

25.2 - 26.2 mi

Top 79%
×2
+22ft-21ft

Overall

22967

Males

13301

M45-49

13301

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1147
Passed By
1065
Net Change
-241
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23803
5K → 10K111200-280#23803#24083
10K → 15K83200-192#24083#24275
15K → 20K18655+131#24275#24144
20K → HALF2831-3#24144#24147
HALF → 25K12598+27#24147#24120
25K → 30K97200-160#24120#24280
30K → 20M7360+13#24280#24267
20M → 21M7258+14#24267#24253
21M → 35K2936-7#24253#24260
35K → 23M10737+70#24260#24190
23M → 24M7328+45#24190#24145
24M → 40K5032+18#24145#24127
40K → 25.2M511+50#24127#24077
25.2M → FINISH6229+33#24077#24044
TOTALS11471065-241
📊

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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