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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Nairn Robertson

Bib: 13047 •M •Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M50-54)
#0 / 1868
Race Day Weather
51°/41°F
overcast clouds
Personalized for Nairn

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 · 7:31/mi at mile 3.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Improvement Opportunities
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
23:20
3.11 mi
Rank: #12862
Start → 5K
23:20 | 7:31/mi
10K
47:26
6.21 mi
Rank: #14037 (-1175)
5K → 10K
24:06 | 7:46/mi
15K
1:12:06
9.32 mi
Rank: #14851 (-814)
10K → 15K
24:40 | 7:57/mi
20K
1:37:36
12.43 mi
Rank: #15589 (-738)
15K → 20K
25:30 | 8:13/mi
HALF
1:43:04
13.11 mi
Rank: #15681 (-92)
20K → HALF
5:28 | 8:02/mi
25K
2:03:13
15.53 mi
Rank: #16031 (-350)
HALF → 25K
20:09 | 8:19/mi
30K
2:30:49
18.64 mi
Rank: #16649 (-618)
25K → 30K
27:36 | 8:54/mi
20M
2:43:29
20.00 mi
Rank: #16970 (-321)
30K → 20M
12:40 | 9:20/mi
21M
2:54:15
21.00 mi
Rank: #17434 (-464)
20M → 21M
10:46 | 10:46/mi
35K
3:01:56
21.75 mi
Rank: #17819 (-385)
21M → 35K
7:41 | 10:17/mi
23M
3:14:56
23.00 mi
Rank: #18298 (-479)
35K → 23M
13:00 | 10:24/mi
24M
3:25:16
24.00 mi
Rank: #18676 (-378)
23M → 24M
10:20 | 10:20/mi
40K
3:34:13
24.85 mi
Rank: #18954 (-278)
24M → 40K
8:57 | 10:29/mi
25.2M
3:38:31
25.20 mi
Rank: #19171 (-217)
40K → 25.2M
4:18 | 12:29/mi
FINISH
3:48:48
26.22 mi
Rank: #19494 (-323)
25.2M → FINISH
10:17 | 10:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:04
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time2:05:44
Pace9:36 /mi
📊Positive Split: 22.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0723:207:3123:20
7:31
-
10K
6.21 mi11:16:1347:267:3924:06
7:46
+0:15
15K
9.32 mi11:40:531:12:067:4524:40
7:57
+0:11
20K
12.43 mi12:06:231:37:367:5225:30
8:13
+0:16
HALF
13.11 mi12:11:511:43:047:525:28
8:02
-0:11
25K
15.53 mi12:32:002:03:137:5620:09
8:19
+0:17
30K
18.64 mi12:59:362:30:498:0627:36
8:54
+0:35
20M
20.00 mi13:12:162:43:298:1112:40
9:20
+0:26
21M
21.00 mi13:23:022:54:158:1810:46
10:46
+1:26
35K
21.75 mi13:30:433:01:568:227:41
10:17
-0:29
23M
23.00 mi13:43:433:14:568:2913:00
10:24
+0:07
24M
24.00 mi13:54:033:25:168:3410:20
10:20
-0:04
40K
24.85 mi14:03:003:34:138:388:57
10:29
+0:09
25.2M
25.20 mi14:07:183:38:318:414:18
12:29
+2:00
FINISH
26.22 mi14:17:353:48:488:4410:17
10:06
-2:23

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

7:31 /mi

Average Pace

8:44 /mi

Slowest Pace

12:29 /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

2:03:13

54% of race

Time at Steady Pace

40:16

18% of race

Time at Slower Pace

1:05:19

29% of race

Average Pace: 8:44 /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 mi10:52:0723:207:3123:20
7:31
#12862
10K
6.21 mi11:16:1347:267:3924:06
7:46
#14037
15K
9.32 mi11:40:531:12:067:4524:40
7:57
#14851
20K
12.43 mi12:06:231:37:367:5225:30
8:13
#15589
HALF
13.11 mi12:11:511:43:047:525:28
8:02
#15681
25K
15.53 mi12:32:002:03:137:5620:09
8:19
#16031
30K
18.64 mi12:59:362:30:498:0627:36
8:54
#16649
20M
20.00 mi13:12:162:43:298:1112:40
9:20
#16970
21M
21.00 mi13:23:022:54:158:1810:46
10:46
#17434
35K
21.75 mi13:30:433:01:568:227:41
10:17
#17819
23M
23.00 mi13:43:433:14:568:2913:00
10:24
#18298
24M
24.00 mi13:54:033:25:168:3410:20
10:20
#18676
40K
24.85 mi14:03:003:34:138:388:57
10:29
#18954
25.2M
25.20 mi14:07:183:38:318:414:18
12:29
#19171
FINISH
26.22 mi14:17:353:48:488:4410:17
10:06
#19494
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi128629406940616524(Top 57%)10830(Top 66%)10830(Top 580%)
10K6.21 mi3.10 mi14037-11759866-4609866-46015231(Top 52%)10319(Top 63%)10319(Top 552%)
15K9.32 mi3.11 mi14851-81410148-28210148-28216524(Top 57%)10830(Top 66%)10830(Top 580%)
20K12.43 mi3.11 mi15589-73810410-26210410-26217526(Top 60%)11217(Top 69%)11217(Top 600%)
HALF13.11 mi0.68 mi15681-9210448-3810448-3817239(Top 59%)11134(Top 68%)11134(Top 596%)
25K15.53 mi2.42 mi16031-35010577-12910577-12917478(Top 60%)11145(Top 68%)11145(Top 597%)
30K18.64 mi3.11 mi16649-61810798-22110798-22118990(Top 65%)11711(Top 72%)11711(Top 627%)
20M20.00 mi1.36 mi16970-32110939-14110939-14120350(Top 70%)12273(Top 75%)12273(Top 657%)
21M21.00 mi1.00 mi17434-46411119-18011119-18022559(Top 78%)13293(Top 81%)13293(Top 712%)
35K21.75 mi0.75 mi17819-38511257-13811257-13823792(Top 82%)13824(Top 85%)13824(Top 740%)
23M23.00 mi1.25 mi18298-47911441-18411441-18423092(Top 80%)13442(Top 82%)13442(Top 720%)
24M24.00 mi1.00 mi18676-37811589-14811589-14823680(Top 82%)13697(Top 84%)13697(Top 733%)
40K24.85 mi0.85 mi18954-27811696-10711696-10723111(Top 80%)13340(Top 82%)13340(Top 714%)
25.2M25.20 mi0.35 mi19171-21711781-8511781-8525251(Top 87%)14405(Top 88%)14405(Top 771%)
FINISH26.22 mi1.02 mi19494-32311920-13911920-13924070(Top 83%)13824(Top 85%)13824(Top 740%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21
+97ft-345ft

Overall

16524

Males

10830

M50-54

10830

5K→10K

3.1 - 6.2 mi

Top 52%
×5
+79ft-138ft

Overall

15231

Males

10319

M50-54

10319

10K→15K

6.2 - 9.3 mi

Top 57%
×3
+67ft-78ft

Overall

16524

Males

10830

M50-54

10830

15K→20K

9.3 - 12.4 mi

Top 60%
×5
+106ft-86ft

Overall

17526

Males

11217

M50-54

11217

20K→HALF

12.4 - 13.1 mi

Top 59%
×2
+19ft-37ft

Overall

17239

Males

11134

M50-54

11134

HALF→25K

13.1 - 15.5 mi

Top 60%
×4
+66ft-88ft

Overall

17478

Males

11145

M50-54

11145

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

18990

Males

11711

M50-54

11711

30K→20M

18.6 - 20.0 mi

Top 70%
×5
+64ft-50ft

Overall

20350

Males

12273

M50-54

12273

20M→21M

20.0 - 21.0 mi

Top 78%
×8
+106ft-24ft

Overall

22559

Males

13293

M50-54

13293

21M→35K

21.0 - 21.8 mi

Top 82%
×7
+17ft-86ft

Overall

23792

Males

13824

M50-54

13824

35K→23M

21.8 - 23.0 mi

Top 80%
×5
+23ft-63ft

Overall

23092

Males

13442

M50-54

13442

23M→24M

23.0 - 24.0 mi

Top 82%
×6
+12ft-82ft

Overall

23680

Males

13697

M50-54

13697

24M→40K

24.0 - 24.9 mi

Top 80%
×1
+6ft-20ft

Overall

23111

Males

13340

M50-54

13340

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1
+13ft-16ft

Overall

25251

Males

14405

M50-54

14405

25.2M→FINISH

25.2 - 26.2 mi

Top 83%
×2
+22ft-21ft

Overall

24070

Males

13824

M50-54

13824

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
393
Passed By
2710
Net Change
-6632
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12862
5K → 10K38200-1175#12862#14037
10K → 15K50200-814#14037#14851
15K → 20K42200-738#14851#15589
20K → HALF18110-92#15589#15681
HALF → 25K70200-350#15681#16031
25K → 30K73200-618#16031#16649
30K → 20M18200-321#16649#16970
20M → 21M10200-464#16970#17434
21M → 35K13200-385#17434#17819
35K → 23M27200-479#17819#18298
23M → 24M15200-378#18298#18676
24M → 40K10200-278#18676#18954
40K → 25.2M4200-217#18954#19171
25.2M → FINISH5200-323#19171#19494
TOTALS3932710-6632
📊

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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Activity Data

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