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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chris Claflin

Bib: 2050 •M •Age: N/A

AR

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 16%
Gender (Male)
#0 / 16340
Top 26%
Age Group (M18-39)
#0 / 5723
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
20:36
3.11 mi
Rank: #5247
Start → 5K
20:36 | 6:38/mi
10K
40:43
6.21 mi
Rank: #4617 (+630)
5K → 10K
20:07 | 6:29/mi
15K
1:00:59
9.32 mi
Rank: #4523 (+94)
10K → 15K
20:16 | 6:32/mi
20K
1:21:29
12.43 mi
Rank: #4465 (+58)
15K → 20K
20:30 | 6:36/mi
HALF
1:25:57
13.11 mi
Rank: #4477 (-12)
20K → HALF
4:28 | 6:34/mi
25K
1:42:03
15.53 mi
Rank: #4445 (+32)
HALF → 25K
16:06 | 6:39/mi
30K
2:03:26
18.64 mi
Rank: #4479 (-34)
25K → 30K
21:23 | 6:53/mi
20M
2:12:57
20.00 mi
Rank: #4514 (-35)
30K → 20M
9:31 | 7:01/mi
21M
2:20:24
21.00 mi
Rank: #4585 (-71)
20M → 21M
7:27 | 7:27/mi
35K
2:25:39
21.75 mi
Rank: #4662 (-77)
21M → 35K
5:15 | 7:02/mi
23M
2:34:33
23.00 mi
Rank: #4712 (-50)
35K → 23M
8:54 | 7:07/mi
24M
2:41:23
24.00 mi
Rank: #4722 (-10)
23M → 24M
6:50 | 6:50/mi
40K
2:47:21
24.85 mi
Rank: #4724 (-2)
24M → 40K
5:58 | 6:59/mi
25.2M
2:49:58
25.20 mi
Rank: #4728 (-4)
40K → 25.2M
2:37 | 7:36/mi
FINISH
2:56:42
26.22 mi
Rank: #4692 (+36)
25.2M → FINISH
6:44 | 6:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:25:57
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:30:45
Pace6:56 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1320:366:3820:36
6:38
-
10K
6.21 mi10:41:2040:436:3420:07
6:29
-0:09
15K
9.32 mi11:01:361:00:596:3320:16
6:32
+0:03
20K
12.43 mi11:22:061:21:296:3420:30
6:36
+0:04
HALF
13.11 mi11:26:341:25:576:344:28
6:34
-0:02
25K
15.53 mi11:42:401:42:036:3516:06
6:39
+0:05
30K
18.64 mi12:04:032:03:266:3821:23
6:53
+0:14
20M
20.00 mi12:13:342:12:576:399:31
7:01
+0:08
21M
21.00 mi12:21:012:20:246:427:27
7:27
+0:26
35K
21.75 mi12:26:162:25:396:425:15
7:02
-0:25
23M
23.00 mi12:35:102:34:336:448:54
7:07
+0:05
24M
24.00 mi12:42:002:41:236:446:50
6:50
-0:17
40K
24.85 mi12:47:582:47:216:445:58
6:59
+0:09
25.2M
25.20 mi12:50:352:49:586:452:37
7:36
+0:37
FINISH
26.22 mi12:57:192:56:426:456:44
6:37
-0:59

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

6:29 /mi

Average Pace

6:45 /mi

Slowest Pace

7:36 /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

2:46:38

94% of race

Time at Steady Pace

10:04

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /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 mi10:21:1320:366:3820:36
6:38
#5247
10K
6.21 mi10:41:2040:436:3420:07
6:29
#4617
15K
9.32 mi11:01:361:00:596:3320:16
6:32
#4523
20K
12.43 mi11:22:061:21:296:3420:30
6:36
#4465
HALF
13.11 mi11:26:341:25:576:344:28
6:34
#4477
25K
15.53 mi11:42:401:42:036:3516:06
6:39
#4445
30K
18.64 mi12:04:032:03:266:3821:23
6:53
#4479
20M
20.00 mi12:13:342:12:576:399:31
7:01
#4514
21M
21.00 mi12:21:012:20:246:427:27
7:27
#4585
35K
21.75 mi12:26:162:25:396:425:15
7:02
#4662
23M
23.00 mi12:35:102:34:336:448:54
7:07
#4712
24M
24.00 mi12:42:002:41:236:446:50
6:50
#4722
40K
24.85 mi12:47:582:47:216:445:58
6:59
#4724
25.2M
25.20 mi12:50:352:49:586:452:37
7:36
#4728
FINISH
26.22 mi12:57:192:56:426:456:44
6:37
#4692
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 mi5247487548754396(Top 15%)4144(Top 25%)4144(Top 72%)
10K6.21 mi3.10 mi4617+6304338+5374338+5374039(Top 14%)3830(Top 23%)3830(Top 67%)
15K9.32 mi3.11 mi4523+944266+724266+724396(Top 15%)4144(Top 25%)4144(Top 72%)
20K12.43 mi3.11 mi4465+584206+604206+604426(Top 15%)4159(Top 25%)4159(Top 73%)
HALF13.11 mi0.68 mi4477-124216-104216-104816(Top 17%)4488(Top 27%)4488(Top 78%)
25K15.53 mi2.42 mi4445+324182+344182+344412(Top 15%)4117(Top 25%)4117(Top 72%)
30K18.64 mi3.11 mi4479-344209-274209-275019(Top 17%)4540(Top 28%)4540(Top 79%)
20M20.00 mi1.36 mi4514-354227-184227-185562(Top 19%)4919(Top 30%)4919(Top 86%)
21M21.00 mi1.00 mi4585-714280-534280-536139(Top 21%)5205(Top 32%)5205(Top 91%)
35K21.75 mi0.75 mi4662-774333-534333-537176(Top 25%)5911(Top 36%)5911(Top 103%)
23M23.00 mi1.25 mi4712-504362-294362-296189(Top 21%)5225(Top 32%)5225(Top 91%)
24M24.00 mi1.00 mi4722-104361+14361+15352(Top 18%)4585(Top 28%)4585(Top 80%)
40K24.85 mi0.85 mi4724-24352+94352+95347(Top 18%)4524(Top 28%)4524(Top 79%)
25.2M25.20 mi0.35 mi4728-44351+14351+15684(Top 20%)4700(Top 29%)4700(Top 82%)
FINISH26.22 mi1.02 mi4692+364305+464305+464799(Top 17%)4043(Top 25%)4043(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21
+97ft-345ft

Overall

4396

Males

4144

M18-39

4144

5K→10K

3.1 - 6.2 mi

Top 14%
×5
+79ft-138ft

Overall

4039

Males

3830

M18-39

3830

10K→15K

6.2 - 9.3 mi

Top 15%
×3
+67ft-78ft

Overall

4396

Males

4144

M18-39

4144

15K→20K

9.3 - 12.4 mi

Top 15%
×5
+106ft-86ft

Overall

4426

Males

4159

M18-39

4159

20K→HALF

12.4 - 13.1 mi

Top 17%
×2
+19ft-37ft

Overall

4816

Males

4488

M18-39

4488

HALF→25K

13.1 - 15.5 mi

Top 15%
×4
+66ft-88ft

Overall

4412

Males

4117

M18-39

4117

25K→30K

15.5 - 18.6 mi

Top 17%
×9
+181ft-148ft

Overall

5019

Males

4540

M18-39

4540

30K→20M

18.6 - 20.0 mi

Top 19%
×5
+64ft-50ft

Overall

5562

Males

4919

M18-39

4919

20M→21M

20.0 - 21.0 mi

Top 21%
×8
+106ft-24ft

Overall

6139

Males

5205

M18-39

5205

21M→35K

21.0 - 21.8 mi

Top 25%
×7
+17ft-86ft

Overall

7176

Males

5911

M18-39

5911

35K→23M

21.8 - 23.0 mi

Top 21%
×5
+23ft-63ft

Overall

6189

Males

5225

M18-39

5225

23M→24M

23.0 - 24.0 mi

Top 18%
×6
+12ft-82ft

Overall

5352

Males

4585

M18-39

4585

24M→40K

24.0 - 24.9 mi

Top 18%
×1
+6ft-20ft

Overall

5347

Males

4524

M18-39

4524

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1
+13ft-16ft

Overall

5684

Males

4700

M18-39

4700

25.2M→FINISH

25.2 - 26.2 mi

Top 17%
×2
+22ft-21ft

Overall

4799

Males

4043

M18-39

4043

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1482*
Passed By
927
Net Change
+555
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5247
5K → 10K643*13+630#5247#4617
10K → 15K16672+94#4617#4523
15K → 20K12264+58#4523#4465
20K → HALF1628-12#4465#4477
HALF → 25K7947+32#4477#4445
25K → 30K101135-34#4445#4479
30K → 20M4883-35#4479#4514
20M → 21M44115-71#4514#4585
21M → 35K1188-77#4585#4662
35K → 23M61111-50#4662#4712
23M → 24M5363-10#4712#4722
24M → 40K5456-2#4722#4724
40K → 25.2M1721-4#4724#4728
25.2M → FINISH6731+36#4728#4692
TOTALS1482*927+555

* 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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