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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

William Walmsley

Bib: 3971 •M •Age: N/A

OH

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 7%
Gender (Male)
#0 / 16340
Top 12%
Age Group (M18-39)
#0 / 5723
Top 29%
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
19:16
3.11 mi
Rank: #2105
Start → 5K
19:16 | 6:13/mi
10K
38:06
6.21 mi
Rank: #1833 (+272)
5K → 10K
18:50 | 6:04/mi
15K
57:06
9.32 mi
Rank: #1838 (-5)
10K → 15K
19:00 | 6:07/mi
20K
1:16:22
12.43 mi
Rank: #1885 (-47)
15K → 20K
19:16 | 6:13/mi
HALF
1:20:31
13.11 mi
Rank: #1884 (+1)
20K → HALF
4:09 | 6:06/mi
25K
1:35:34
15.53 mi
Rank: #1865 (+19)
HALF → 25K
15:03 | 6:13/mi
30K
1:55:41
18.64 mi
Rank: #1928 (-63)
25K → 30K
20:07 | 6:29/mi
20M
2:04:31
20.00 mi
Rank: #1936 (-8)
30K → 20M
8:50 | 6:31/mi
21M
2:11:25
21.00 mi
Rank: #1960 (-24)
20M → 21M
6:54 | 6:54/mi
35K
2:16:13
21.75 mi
Rank: #1973 (-13)
21M → 35K
4:48 | 6:25/mi
23M
2:24:20
23.00 mi
Rank: #1961 (+12)
35K → 23M
8:07 | 6:30/mi
24M
2:30:46
24.00 mi
Rank: #1961
23M → 24M
6:26 | 6:26/mi
40K
2:36:20
24.85 mi
Rank: #1968 (-7)
24M → 40K
5:34 | 6:31/mi
25.2M
2:38:58
25.20 mi
Rank: #2015 (-47)
40K → 25.2M
2:38 | 7:39/mi
FINISH
2:45:25
26.22 mi
Rank: #2039 (-24)
25.2M → FINISH
6:27 | 6:20/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:20:31
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:24:54
Pace6:29 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4419:166:1319:16
6:13
-
10K
6.21 mi10:39:3438:066:0818:50
6:04
-0:09
15K
9.32 mi10:58:3457:066:0819:00
6:07
+0:03
20K
12.43 mi11:17:501:16:226:0919:16
6:13
+0:06
HALF
13.11 mi11:21:591:20:316:094:09
6:06
-0:07
25K
15.53 mi11:37:021:35:346:1015:03
6:13
+0:07
30K
18.64 mi11:57:091:55:416:1320:07
6:29
+0:16
20M
20.00 mi12:05:592:04:316:148:50
6:31
+0:02
21M
21.00 mi12:12:532:11:256:166:54
6:54
+0:23
35K
21.75 mi12:17:412:16:136:164:48
6:25
-0:29
23M
23.00 mi12:25:482:24:206:178:07
6:30
+0:05
24M
24.00 mi12:32:142:30:466:176:26
6:26
-0:04
40K
24.85 mi12:37:482:36:206:185:34
6:31
+0:05
25.2M
25.20 mi12:40:262:38:586:192:38
7:39
+1:08
FINISH
26.22 mi12:46:532:45:256:196:27
6:20
-1:19

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

6:04 /mi

Average Pace

6:19 /mi

Slowest Pace

7:39 /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

1:35:34

58% of race

Time at Steady Pace

1:00:19

36% of race

Time at Slower Pace

9:32

6% of race

Average Pace: 6:19 /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 mi10:20:4419:166:1319:16
6:13
#2105
10K
6.21 mi10:39:3438:066:0818:50
6:04
#1833
15K
9.32 mi10:58:3457:066:0819:00
6:07
#1838
20K
12.43 mi11:17:501:16:226:0919:16
6:13
#1885
HALF
13.11 mi11:21:591:20:316:094:09
6:06
#1884
25K
15.53 mi11:37:021:35:346:1015:03
6:13
#1865
30K
18.64 mi11:57:091:55:416:1320:07
6:29
#1928
20M
20.00 mi12:05:592:04:316:148:50
6:31
#1936
21M
21.00 mi12:12:532:11:256:166:54
6:54
#1960
35K
21.75 mi12:17:412:16:136:164:48
6:25
#1973
23M
23.00 mi12:25:482:24:206:178:07
6:30
#1961
24M
24.00 mi12:32:142:30:466:176:26
6:26
#1961
40K
24.85 mi12:37:482:36:206:185:34
6:31
#1968
25.2M
25.20 mi12:40:262:38:586:192:38
7:39
#2015
FINISH
26.22 mi12:46:532:45:256:196:27
6:20
#2039
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 mi2105202720271882(Top 6%)1815(Top 11%)1815(Top 32%)
10K6.21 mi3.10 mi1833+2721766+2611766+2611623(Top 6%)1561(Top 10%)1561(Top 27%)
15K9.32 mi3.11 mi1838-51770-41770-41882(Top 6%)1815(Top 11%)1815(Top 32%)
20K12.43 mi3.11 mi1885-471816-461816-462024(Top 7%)1953(Top 12%)1953(Top 34%)
HALF13.11 mi0.68 mi1884+11815+11815+11897(Top 7%)1834(Top 11%)1834(Top 32%)
25K15.53 mi2.42 mi1865+191797+181797+181876(Top 6%)1808(Top 11%)1808(Top 32%)
30K18.64 mi3.11 mi1928-631859-621859-622443(Top 8%)2337(Top 14%)2337(Top 41%)
20M20.00 mi1.36 mi1936-81865-61865-62420(Top 8%)2296(Top 14%)2296(Top 40%)
21M21.00 mi1.00 mi1960-241886-211886-212879(Top 10%)2686(Top 16%)2686(Top 47%)
35K21.75 mi0.75 mi1973-131899-131899-133061(Top 11%)2848(Top 17%)2848(Top 50%)
23M23.00 mi1.25 mi1961+121887+121887+122331(Top 8%)2192(Top 13%)2192(Top 38%)
24M24.00 mi1.00 mi19611884+31884+32787(Top 10%)2553(Top 16%)2553(Top 45%)
40K24.85 mi0.85 mi1968-71890-61890-62575(Top 9%)2367(Top 14%)2367(Top 41%)
25.2M25.20 mi0.35 mi2015-471933-431933-435898(Top 20%)4817(Top 29%)4817(Top 84%)
FINISH26.22 mi1.02 mi2039-241956-231956-233151(Top 11%)2792(Top 17%)2792(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21
+97ft-345ft

Overall

1882

Males

1815

M18-39

1815

5K→10K

3.1 - 6.2 mi

Top 6%
×5
+79ft-138ft

Overall

1623

Males

1561

M18-39

1561

10K→15K

6.2 - 9.3 mi

Top 6%
×3
+67ft-78ft

Overall

1882

Males

1815

M18-39

1815

15K→20K

9.3 - 12.4 mi

Top 7%
×5
+106ft-86ft

Overall

2024

Males

1953

M18-39

1953

20K→HALF

12.4 - 13.1 mi

Top 7%
×2
+19ft-37ft

Overall

1897

Males

1834

M18-39

1834

HALF→25K

13.1 - 15.5 mi

Top 6%
×4
+66ft-88ft

Overall

1876

Males

1808

M18-39

1808

25K→30K

15.5 - 18.6 mi

Top 8%
×9
+181ft-148ft

Overall

2443

Males

2337

M18-39

2337

30K→20M

18.6 - 20.0 mi

Top 8%
×5
+64ft-50ft

Overall

2420

Males

2296

M18-39

2296

20M→21M

20.0 - 21.0 mi

Top 10%
×8
+106ft-24ft

Overall

2879

Males

2686

M18-39

2686

21M→35K

21.0 - 21.8 mi

Top 11%
×7
+17ft-86ft

Overall

3061

Males

2848

M18-39

2848

35K→23M

21.8 - 23.0 mi

Top 8%
×5
+23ft-63ft

Overall

2331

Males

2192

M18-39

2192

23M→24M

23.0 - 24.0 mi

Top 10%
×6
+12ft-82ft

Overall

2787

Males

2553

M18-39

2553

24M→40K

24.0 - 24.9 mi

Top 9%
×1
+6ft-20ft

Overall

2575

Males

2367

M18-39

2367

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1
+13ft-16ft

Overall

5898

Males

4817

M18-39

4817

25.2M→FINISH

25.2 - 26.2 mi

Top 11%
×2
+22ft-21ft

Overall

3151

Males

2792

M18-39

2792

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
692*
Passed By
626
Net Change
+66
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2105
5K → 10K287*15+272#2105#1833
10K → 15K5964-5#1833#1838
15K → 20K2774-47#1838#1885
20K → HALF109+1#1885#1884
HALF → 25K5435+19#1884#1865
25K → 30K47110-63#1865#1928
30K → 20M3240-8#1928#1936
20M → 21M3054-24#1936#1960
21M → 35K1932-13#1960#1973
35K → 23M4230+12#1973#1961
23M → 24M27270#1961#1961
24M → 40K3239-7#1961#1968
40K → 25.2M350-47#1968#2015
25.2M → FINISH2347-24#2015#2039
TOTALS692*626+66

* 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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