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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jeffrey Chalmers

Bib: 9930 •M •Age: N/A

OH

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 36%
Gender (Male)
#0 / 16340
Top 48%
Masters (Masters Men)
#0 / 10617
Top 37%
Age Group (M50-54)
#0 / 1868
Top 38%
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
23:36
3.11 mi
Rank: #13586
Start → 5K
23:36 | 7:36/mi
10K
47:20
6.21 mi
Rank: #13881 (-295)
5K → 10K
23:44 | 7:39/mi
15K
1:11:09
9.32 mi
Rank: #13937 (-56)
10K → 15K
23:49 | 7:40/mi
20K
1:34:48
12.43 mi
Rank: #13652 (+285)
15K → 20K
23:39 | 7:37/mi
HALF
1:39:51
13.11 mi
Rank: #13588 (+64)
20K → HALF
5:03 | 7:25/mi
25K
1:57:55
15.53 mi
Rank: #13158 (+430)
HALF → 25K
18:04 | 7:27/mi
30K
2:20:59
18.64 mi
Rank: #12410 (+748)
25K → 30K
23:04 | 7:26/mi
20M
2:31:02
20.00 mi
Rank: #12090 (+320)
30K → 20M
10:03 | 7:24/mi
21M
2:38:29
21.00 mi
Rank: #11711 (+379)
20M → 21M
7:27 | 7:27/mi
35K
2:43:46
21.75 mi
Rank: #11515 (+196)
21M → 35K
5:17 | 7:04/mi
23M
2:52:46
23.00 mi
Rank: #11141 (+374)
35K → 23M
9:00 | 7:12/mi
24M
2:59:44
24.00 mi
Rank: #10868 (+273)
23M → 24M
6:58 | 6:58/mi
40K
3:05:44
24.85 mi
Rank: #10636 (+232)
24M → 40K
6:00 | 7:02/mi
25.2M
3:08:19
25.20 mi
Rank: #10539 (+97)
40K → 25.2M
2:35 | 7:30/mi
FINISH
3:15:15
26.22 mi
Rank: #10307 (+232)
25.2M → FINISH
6:56 | 6:49/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:39:51
Pace7:38 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:35:24
Pace7:17 /mi
📊Negative Split: 4.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:40:1323:367:3623:36
7:36
-
10K
6.21 mi11:03:5747:207:3823:44
7:39
+0:03
15K
9.32 mi11:27:461:11:097:3923:49
7:40
+0:01
20K
12.43 mi11:51:251:34:487:3823:39
7:37
-0:03
HALF
13.11 mi11:56:281:39:517:385:03
7:25
-0:12
25K
15.53 mi12:14:321:57:557:3618:04
7:27
+0:02
30K
18.64 mi12:37:362:20:597:3423:04
7:26
-0:01
20M
20.00 mi12:47:392:31:027:3410:03
7:24
-0:02
21M
21.00 mi12:55:062:38:297:337:27
7:27
+0:03
35K
21.75 mi13:00:232:43:467:325:17
7:04
-0:23
23M
23.00 mi13:09:232:52:467:319:00
7:12
+0:08
24M
24.00 mi13:16:212:59:447:306:58
6:58
-0:14
40K
24.85 mi13:22:213:05:447:296:00
7:02
+0:04
25.2M
25.20 mi13:24:563:08:197:292:35
7:30
+0:28
FINISH
26.22 mi13:31:523:15:157:286:56
6:49
-0:41

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

6:49 /mi

Average Pace

7:27 /mi

Slowest Pace

7:40 /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

1:37:52

50% of race

Time at Steady Pace

1:37:23

50% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:40:1323:367:3623:36
7:36
#13586
10K
6.21 mi11:03:5747:207:3823:44
7:39
#13881
15K
9.32 mi11:27:461:11:097:3923:49
7:40
#13937
20K
12.43 mi11:51:251:34:487:3823:39
7:37
#13652
HALF
13.11 mi11:56:281:39:517:385:03
7:25
#13588
25K
15.53 mi12:14:321:57:557:3618:04
7:27
#13158
30K
18.64 mi12:37:362:20:597:3423:04
7:26
#12410
20M
20.00 mi12:47:392:31:027:3410:03
7:24
#12090
21M
21.00 mi12:55:062:38:297:337:27
7:27
#11711
35K
21.75 mi13:00:232:43:467:325:17
7:04
#11515
23M
23.00 mi13:09:232:52:467:319:00
7:12
#11141
24M
24.00 mi13:16:212:59:447:306:58
6:58
#10868
40K
24.85 mi13:22:213:05:447:296:00
7:02
#10636
25.2M
25.20 mi13:24:563:08:197:292:35
7:30
#10539
FINISH
26.22 mi13:31:523:15:157:286:56
6:49
#10307
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 mi135869698969814218(Top 49%)9888(Top 61%)9888(Top 529%)
10K6.21 mi3.10 mi13881-2959804-1069804-10614200(Top 49%)9900(Top 61%)9900(Top 530%)
15K9.32 mi3.11 mi13937-569802+29802+214218(Top 49%)9888(Top 61%)9888(Top 529%)
20K12.43 mi3.11 mi13652+2859658+1449658+14412926(Top 45%)9245(Top 57%)9245(Top 495%)
HALF13.11 mi0.68 mi13588+649630+289630+2812097(Top 42%)8952(Top 55%)8952(Top 479%)
25K15.53 mi2.42 mi13158+4309422+2089422+20810989(Top 38%)8319(Top 51%)8319(Top 445%)
30K18.64 mi3.11 mi12410+7489052+3709052+3709037(Top 31%)7191(Top 44%)7191(Top 385%)
20M20.00 mi1.36 mi12090+3208886+1668886+1668381(Top 29%)6709(Top 41%)6709(Top 359%)
21M21.00 mi1.00 mi11711+3798712+1748712+1746196(Top 21%)5262(Top 32%)5262(Top 282%)
35K21.75 mi0.75 mi11515+1968618+948618+947575(Top 26%)6193(Top 38%)6193(Top 332%)
23M23.00 mi1.25 mi11141+3748401+2178401+2176724(Top 23%)5586(Top 34%)5586(Top 299%)
24M24.00 mi1.00 mi10868+2738233+1688233+1686275(Top 22%)5229(Top 32%)5229(Top 280%)
40K24.85 mi0.85 mi10636+2328104+1298104+1295622(Top 19%)4731(Top 29%)4731(Top 253%)
25.2M25.20 mi0.35 mi10539+978040+648040+645258(Top 18%)4423(Top 27%)4423(Top 237%)
FINISH26.22 mi1.02 mi10307+2327891+1497891+1496160(Top 21%)4981(Top 30%)4981(Top 267%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21
+97ft-345ft

Overall

14218

Males

9888

M50-54

9888

5K→10K

3.1 - 6.2 mi

Top 49%
×5
+79ft-138ft

Overall

14200

Males

9900

M50-54

9900

10K→15K

6.2 - 9.3 mi

Top 49%
×3
+67ft-78ft

Overall

14218

Males

9888

M50-54

9888

15K→20K

9.3 - 12.4 mi

Top 45%
×5
+106ft-86ft

Overall

12926

Males

9245

M50-54

9245

20K→HALF

12.4 - 13.1 mi

Top 42%
×2
+19ft-37ft

Overall

12097

Males

8952

M50-54

8952

HALF→25K

13.1 - 15.5 mi

Top 38%
×4
+66ft-88ft

Overall

10989

Males

8319

M50-54

8319

25K→30K

15.5 - 18.6 mi

Top 31%
×9
+181ft-148ft

Overall

9037

Males

7191

M50-54

7191

30K→20M

18.6 - 20.0 mi

Top 29%
×5
+64ft-50ft

Overall

8381

Males

6709

M50-54

6709

20M→21M

20.0 - 21.0 mi

Top 21%
×8
+106ft-24ft

Overall

6196

Males

5262

M50-54

5262

21M→35K

21.0 - 21.8 mi

Top 26%
×7
+17ft-86ft

Overall

7575

Males

6193

M50-54

6193

35K→23M

21.8 - 23.0 mi

Top 23%
×5
+23ft-63ft

Overall

6724

Males

5586

M50-54

5586

23M→24M

23.0 - 24.0 mi

Top 22%
×6
+12ft-82ft

Overall

6275

Males

5229

M50-54

5229

24M→40K

24.0 - 24.9 mi

Top 19%
×1
+6ft-20ft

Overall

5622

Males

4731

M50-54

4731

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1
+13ft-16ft

Overall

5258

Males

4423

M50-54

4423

25.2M→FINISH

25.2 - 26.2 mi

Top 21%
×2
+22ft-21ft

Overall

6160

Males

4981

M50-54

4981

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4065*
Passed By
473
Net Change
+3279
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13586
5K → 10K178200-295#13586#13881
10K → 15K184200-56#13881#13937
15K → 20K330*45+285#13937#13652
20K → HALF717+64#13652#13588
HALF → 25K434*4+430#13588#13158
25K → 30K750*2+748#13158#12410
30K → 20M322*2+320#12410#12090
20M → 21M379*0+379#12090#11711
21M → 35K1971+196#11711#11515
35K → 23M375*1+374#11515#11141
23M → 24M274*1+273#11141#10868
24M → 40K236*4+232#10868#10636
40K → 25.2M970+97#10636#10539
25.2M → FINISH238*6+232#10539#10307
TOTALS4065*473+3279

* 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

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OTQ

Olympic Trials Qualifying analysis available

Activity Data

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