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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chloe Campbell

Bib: 29357 •F •Age: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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
28:11
3.11 mi
Rank: #22958
Start → 5K
28:11 | 9:05/mi
10K
55:50
6.21 mi
Rank: #22675 (+283)
5K → 10K
27:39 | 8:54/mi
15K
1:23:14
9.32 mi
Rank: #22413 (+262)
10K → 15K
27:24 | 8:50/mi
20K
1:53:46
12.43 mi
Rank: #23178 (-765)
15K → 20K
30:32 | 9:50/mi
HALF
2:00:06
13.11 mi
Rank: #23221 (-43)
20K → HALF
6:20 | 9:18/mi
25K
2:25:22
15.53 mi
Rank: #23638 (-417)
HALF → 25K
25:16 | 10:26/mi
30K
2:59:33
18.64 mi
Rank: #24012 (-374)
25K → 30K
34:11 | 11:01/mi
20M
3:12:39
20.00 mi
Rank: #23817 (+195)
30K → 20M
13:06 | 9:39/mi
21M
3:23:02
21.00 mi
Rank: #23681 (+136)
20M → 21M
10:23 | 10:23/mi
35K
3:30:00
21.75 mi
Rank: #23591 (+90)
21M → 35K
6:58 | 9:19/mi
23M
3:42:13
23.00 mi
Rank: #23454 (+137)
35K → 23M
12:13 | 9:46/mi
24M
3:52:27
24.00 mi
Rank: #23436 (+18)
23M → 24M
10:14 | 10:14/mi
40K
4:01:21
24.85 mi
Rank: #23397 (+39)
24M → 40K
8:54 | 10:25/mi
25.2M
4:05:44
25.20 mi
Rank: #23445 (-48)
40K → 25.2M
4:23 | 12:43/mi
FINISH
4:15:14
26.22 mi
Rank: #23355 (+90)
25.2M → FINISH
9:30 | 9:20/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:00:06
Pace9:10 /mi
2nd Half
Distance13.11 mi
Time2:15:08
Pace10:19 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:1628:119:0528:11
9:05
-
10K
6.21 mi12:22:5555:509:0027:39
8:54
-0:11
15K
9.32 mi12:50:191:23:148:5627:24
8:50
-0:04
20K
12.43 mi13:20:511:53:469:1030:32
9:50
+1:00
HALF
13.11 mi13:27:112:00:069:106:20
9:18
-0:32
25K
15.53 mi13:52:272:25:229:2225:16
10:26
+1:08
30K
18.64 mi14:26:382:59:339:3834:11
11:01
+0:35
20M
20.00 mi14:39:443:12:399:3813:06
9:39
-1:22
21M
21.00 mi14:50:073:23:029:4110:23
10:23
+0:44
35K
21.75 mi14:57:053:30:009:406:58
9:19
-1:04
23M
23.00 mi15:09:183:42:139:4012:13
9:46
+0:27
24M
24.00 mi15:19:323:52:279:4210:14
10:14
+0:28
40K
24.85 mi15:28:264:01:219:438:54
10:25
+0:11
25.2M
25.20 mi15:32:494:05:449:464:23
12:43
+2:18
FINISH
26.22 mi15:42:194:15:149:459:30
9:20
-3:23

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

8:50 /mi

Average Pace

9:45 /mi

Slowest Pace

12:43 /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

1:23:14

33% of race

Time at Steady Pace

1:28:53

35% of race

Time at Slower Pace

1:23:07

33% of race

Average Pace: 9:44 /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 mi11:55:1628:119:0528:11
9:05
#22958
10K
6.21 mi12:22:5555:509:0027:39
8:54
#22675
15K
9.32 mi12:50:191:23:148:5627:24
8:50
#22413
20K
12.43 mi13:20:511:53:469:1030:32
9:50
#23178
HALF
13.11 mi13:27:112:00:069:106:20
9:18
#23221
25K
15.53 mi13:52:272:25:229:2225:16
10:26
#23638
30K
18.64 mi14:26:382:59:339:3834:11
11:01
#24012
20M
20.00 mi14:39:443:12:399:3813:06
9:39
#23817
21M
21.00 mi14:50:073:23:029:4110:23
10:23
#23681
35K
21.75 mi14:57:053:30:009:406:58
9:19
#23591
23M
23.00 mi15:09:183:42:139:4012:13
9:46
#23454
24M
24.00 mi15:19:323:52:279:4210:14
10:14
#23436
40K
24.85 mi15:28:264:01:219:438:54
10:25
#23397
25.2M
25.20 mi15:32:494:05:449:464:23
12:43
#23445
FINISH
26.22 mi15:42:194:15:149:459:30
9:20
#23355
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi229589155915521845(Top 75%)8568(Top 68%)8568(Top 150%)
10K6.21 mi3.10 mi22675+2838994+1618994+16122401(Top 77%)8861(Top 70%)8861(Top 155%)
15K9.32 mi3.11 mi22413+2628865+1298865+12921845(Top 75%)8568(Top 68%)8568(Top 150%)
20K12.43 mi3.11 mi23178-7659262-3979262-39724620(Top 85%)10002(Top 80%)10002(Top 175%)
HALF13.11 mi0.68 mi23221-439274-129274-1223789(Top 82%)9566(Top 76%)9566(Top 167%)
25K15.53 mi2.42 mi23638-4179488-2149488-21425285(Top 87%)10391(Top 83%)10391(Top 182%)
30K18.64 mi3.11 mi24012-3749704-2169704-21625343(Top 87%)10546(Top 84%)10546(Top 184%)
20M20.00 mi1.36 mi23817+1959616+889616+8821573(Top 74%)8640(Top 69%)8640(Top 151%)
21M21.00 mi1.00 mi23681+1369563+539563+5321658(Top 75%)8719(Top 69%)8719(Top 153%)
35K21.75 mi0.75 mi23591+909535+289535+2821240(Top 73%)8572(Top 68%)8572(Top 150%)
23M23.00 mi1.25 mi23454+1379487+489487+4821463(Top 74%)8725(Top 69%)8725(Top 153%)
24M24.00 mi1.00 mi23436+189482+59482+523444(Top 81%)9775(Top 78%)9775(Top 171%)
40K24.85 mi0.85 mi23397+399479+39479+322997(Top 79%)9614(Top 76%)9614(Top 168%)
25.2M25.20 mi0.35 mi23445-489506-279506-2725686(Top 89%)10960(Top 87%)10960(Top 192%)
FINISH26.22 mi1.02 mi23355+909475+319475+3121759(Top 75%)8945(Top 71%)8945(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21
+97ft-345ft

Overall

21845

Females

8568

F18-39

8568

5K→10K

3.1 - 6.2 mi

Top 77%
×5
+79ft-138ft

Overall

22401

Females

8861

F18-39

8861

10K→15K

6.2 - 9.3 mi

Top 75%
×3
+67ft-78ft

Overall

21845

Females

8568

F18-39

8568

15K→20K

9.3 - 12.4 mi

Top 85%
×5
+106ft-86ft

Overall

24620

Females

10002

F18-39

10002

20K→HALF

12.4 - 13.1 mi

Top 82%
×2
+19ft-37ft

Overall

23789

Females

9566

F18-39

9566

HALF→25K

13.1 - 15.5 mi

Top 87%
×4
+66ft-88ft

Overall

25285

Females

10391

F18-39

10391

25K→30K

15.5 - 18.6 mi

Top 87%
×9
+181ft-148ft

Overall

25343

Females

10546

F18-39

10546

30K→20M

18.6 - 20.0 mi

Top 74%
×5
+64ft-50ft

Overall

21573

Females

8640

F18-39

8640

20M→21M

20.0 - 21.0 mi

Top 75%
×8
+106ft-24ft

Overall

21658

Females

8719

F18-39

8719

21M→35K

21.0 - 21.8 mi

Top 73%
×7
+17ft-86ft

Overall

21240

Females

8572

F18-39

8572

35K→23M

21.8 - 23.0 mi

Top 74%
×5
+23ft-63ft

Overall

21463

Females

8725

F18-39

8725

23M→24M

23.0 - 24.0 mi

Top 81%
×6
+12ft-82ft

Overall

23444

Females

9775

F18-39

9775

24M→40K

24.0 - 24.9 mi

Top 79%
×1
+6ft-20ft

Overall

22997

Females

9614

F18-39

9614

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1
+13ft-16ft

Overall

25686

Females

10960

F18-39

10960

25.2M→FINISH

25.2 - 26.2 mi

Top 75%
×2
+22ft-21ft

Overall

21759

Females

8945

F18-39

8945

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1721*
Passed By
1036
Net Change
-397
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22958
5K → 10K431*148+283#22958#22675
10K → 15K329*67+262#22675#22413
15K → 20K38200-765#22413#23178
20K → HALF1457-43#23178#23221
HALF → 25K35200-417#23221#23638
25K → 30K53200-374#23638#24012
30K → 20M2005+195#24012#23817
20M → 21M14711+136#23817#23681
21M → 35K944+90#23681#23591
35K → 23M1436+137#23591#23454
23M → 24M6749+18#23454#23436
24M → 40K6627+39#23436#23397
40K → 25.2M755-48#23397#23445
25.2M → FINISH977+90#23445#23355
TOTALS1721*1036-397

* 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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