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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

John Belcik

Bib: 23218 •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 (M65-69)
#0 / 774
Top 18%
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
25:12
3.11 mi
Rank: #17670
Start → 5K
25:12 | 8:07/mi
10K
50:26
6.21 mi
Rank: #17874 (-204)
5K → 10K
25:14 | 8:08/mi
15K
1:15:59
9.32 mi
Rank: #18078 (-204)
10K → 15K
25:33 | 8:14/mi
20K
1:41:59
12.43 mi
Rank: #18201 (-123)
15K → 20K
26:00 | 8:23/mi
HALF
1:47:31
13.11 mi
Rank: #18176 (+25)
20K → HALF
5:32 | 8:08/mi
25K
2:07:56
15.53 mi
Rank: #18157 (+19)
HALF → 25K
20:25 | 8:26/mi
30K
2:35:10
18.64 mi
Rank: #18172 (-15)
25K → 30K
27:14 | 8:46/mi
20M
2:47:09
20.00 mi
Rank: #18140 (+32)
30K → 20M
11:59 | 8:50/mi
21M
2:56:35
21.00 mi
Rank: #18115 (+25)
20M → 21M
9:26 | 9:26/mi
35K
3:03:05
21.75 mi
Rank: #18137 (-22)
21M → 35K
6:30 | 8:42/mi
23M
3:14:08
23.00 mi
Rank: #18092 (+45)
35K → 23M
11:03 | 8:50/mi
24M
3:22:57
24.00 mi
Rank: #18115 (-23)
23M → 24M
8:49 | 8:49/mi
40K
3:30:28
24.85 mi
Rank: #18073 (+42)
24M → 40K
7:31 | 8:48/mi
25.2M
3:33:49
25.20 mi
Rank: #18079 (-6)
40K → 25.2M
3:21 | 9:43/mi
FINISH
3:42:27
26.22 mi
Rank: #18060 (+19)
25.2M → FINISH
8:38 | 8:29/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
Time1:47:31
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:54:56
Pace8:47 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:4825:128:0725:12
8:07
-
10K
6.21 mi11:53:0250:268:0725:14
8:08
+0:01
15K
9.32 mi12:18:351:15:598:1025:33
8:14
+0:06
20K
12.43 mi12:44:351:41:598:1326:00
8:23
+0:09
HALF
13.11 mi12:50:071:47:318:135:32
8:08
-0:15
25K
15.53 mi13:10:322:07:568:1520:25
8:26
+0:18
30K
18.64 mi13:37:462:35:108:2027:14
8:46
+0:20
20M
20.00 mi13:49:452:47:098:2211:59
8:50
+0:04
21M
21.00 mi13:59:112:56:358:259:26
9:26
+0:36
35K
21.75 mi14:05:413:03:058:266:30
8:42
-0:44
23M
23.00 mi14:16:443:14:088:2711:03
8:50
+0:08
24M
24.00 mi14:25:333:22:578:288:49
8:49
-0:01
40K
24.85 mi14:33:043:30:288:297:31
8:48
-0:01
25.2M
25.20 mi14:36:253:33:498:303:21
9:43
+0:55
FINISH
26.22 mi14:45:033:42:278:308:38
8:29
-1:14

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

8:07 /mi

Average Pace

8:29 /mi

Slowest Pace

9:43 /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

3:29:40

94% of race

Time at Steady Pace

9:26

4% of race

Time at Slower Pace

3:21

2% of race

Average Pace: 8:29 /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 mi11:27:4825:128:0725:12
8:07
#17670
10K
6.21 mi11:53:0250:268:0725:14
8:08
#17874
15K
9.32 mi12:18:351:15:598:1025:33
8:14
#18078
20K
12.43 mi12:44:351:41:598:1326:00
8:23
#18201
HALF
13.11 mi12:50:071:47:318:135:32
8:08
#18176
25K
15.53 mi13:10:322:07:568:1520:25
8:26
#18157
30K
18.64 mi13:37:462:35:108:2027:14
8:46
#18172
20M
20.00 mi13:49:452:47:098:2211:59
8:50
#18140
21M
21.00 mi13:59:112:56:358:259:26
9:26
#18115
35K
21.75 mi14:05:413:03:058:266:30
8:42
#18137
23M
23.00 mi14:16:443:14:088:2711:03
8:50
#18092
24M
24.00 mi14:25:333:22:578:288:49
8:49
#18115
40K
24.85 mi14:33:043:30:288:297:31
8:48
#18073
25.2M
25.20 mi14:36:253:33:498:303:21
9:43
#18079
FINISH
26.22 mi14:45:033:42:278:308:38
8:29
#18060
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi17670112861128618483(Top 64%)11652(Top 71%)11652(Top 1505%)
10K6.21 mi3.10 mi17874-20411383-9711383-9718103(Top 62%)11485(Top 70%)11485(Top 1484%)
15K9.32 mi3.11 mi18078-20411468-8511468-8518483(Top 64%)11652(Top 71%)11652(Top 1505%)
20K12.43 mi3.11 mi18201-12311527-5911527-5918513(Top 64%)11632(Top 71%)11632(Top 1503%)
HALF13.11 mi0.68 mi18176+2511511+1611511+1617851(Top 62%)11389(Top 70%)11389(Top 1471%)
25K15.53 mi2.42 mi18157+1911494+1711494+1718096(Top 62%)11403(Top 70%)11403(Top 1473%)
30K18.64 mi3.11 mi18172-1511460+3411460+3418384(Top 63%)11429(Top 70%)11429(Top 1477%)
20M20.00 mi1.36 mi18140+3211419+4111419+4118064(Top 62%)11200(Top 69%)11200(Top 1447%)
21M21.00 mi1.00 mi18115+2511390+2911390+2918201(Top 63%)11243(Top 69%)11243(Top 1453%)
35K21.75 mi0.75 mi18137-2211393-311393-318551(Top 64%)11298(Top 69%)11298(Top 1460%)
23M23.00 mi1.25 mi18092+4511349+4411349+4417600(Top 61%)10788(Top 66%)10788(Top 1394%)
24M24.00 mi1.00 mi18115-2311340+911340+918592(Top 64%)11235(Top 69%)11235(Top 1452%)
40K24.85 mi0.85 mi18073+4211302+3811302+3817329(Top 60%)10576(Top 65%)10576(Top 1366%)
25.2M25.20 mi0.35 mi18079-611301+111301+118219(Top 63%)10989(Top 67%)10989(Top 1420%)
FINISH26.22 mi1.02 mi18060+1911290+1111290+1117991(Top 62%)10884(Top 67%)10884(Top 1406%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21
+97ft-345ft

Overall

18483

Males

11652

M65-69

11652

5K→10K

3.1 - 6.2 mi

Top 62%
×5
+79ft-138ft

Overall

18103

Males

11485

M65-69

11485

10K→15K

6.2 - 9.3 mi

Top 64%
×3
+67ft-78ft

Overall

18483

Males

11652

M65-69

11652

15K→20K

9.3 - 12.4 mi

Top 64%
×5
+106ft-86ft

Overall

18513

Males

11632

M65-69

11632

20K→HALF

12.4 - 13.1 mi

Top 62%
×2
+19ft-37ft

Overall

17851

Males

11389

M65-69

11389

HALF→25K

13.1 - 15.5 mi

Top 62%
×4
+66ft-88ft

Overall

18096

Males

11403

M65-69

11403

25K→30K

15.5 - 18.6 mi

Top 63%
×9
+181ft-148ft

Overall

18384

Males

11429

M65-69

11429

30K→20M

18.6 - 20.0 mi

Top 62%
×5
+64ft-50ft

Overall

18064

Males

11200

M65-69

11200

20M→21M

20.0 - 21.0 mi

Top 63%
×8
+106ft-24ft

Overall

18201

Males

11243

M65-69

11243

21M→35K

21.0 - 21.8 mi

Top 64%
×7
+17ft-86ft

Overall

18551

Males

11298

M65-69

11298

35K→23M

21.8 - 23.0 mi

Top 61%
×5
+23ft-63ft

Overall

17600

Males

10788

M65-69

10788

23M→24M

23.0 - 24.0 mi

Top 64%
×6
+12ft-82ft

Overall

18592

Males

11235

M65-69

11235

24M→40K

24.0 - 24.9 mi

Top 60%
×1
+6ft-20ft

Overall

17329

Males

10576

M65-69

10576

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1
+13ft-16ft

Overall

18219

Males

10989

M65-69

10989

25.2M→FINISH

25.2 - 26.2 mi

Top 62%
×2
+22ft-21ft

Overall

17991

Males

10884

M65-69

10884

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1411
Passed By
1448
Net Change
-390
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17670
5K → 10K186200-204#17670#17874
10K → 15K112200-204#17874#18078
15K → 20K116200-123#18078#18201
20K → HALF3914+25#18201#18176
HALF → 25K131112+19#18176#18157
25K → 30K193200-15#18157#18172
30K → 20M11482+32#18172#18140
20M → 21M9974+25#18140#18115
21M → 35K4062-22#18115#18137
35K → 23M12075+45#18137#18092
23M → 24M6083-23#18092#18115
24M → 40K9351+42#18115#18073
40K → 25.2M2632-6#18073#18079
25.2M → FINISH8263+19#18079#18060
TOTALS14111448-390
📊

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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