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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Shaorong Chang

Bib: 20722 •F •Age: N/A

TX

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 43%
Masters (Masters Women)
#0 / 6862
Top 29%
Age Group (F45-49)
#0 / 1786
Top 34%
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: #17680
Start → 5K
25:12 | 8:07/mi
10K
50:10
6.21 mi
Rank: #17612 (+68)
5K → 10K
24:58 | 8:03/mi
15K
1:14:59
9.32 mi
Rank: #17393 (+219)
10K → 15K
24:49 | 8:00/mi
20K
1:39:42
12.43 mi
Rank: #16966 (+427)
15K → 20K
24:43 | 7:58/mi
HALF
1:45:03
13.11 mi
Rank: #16914 (+52)
20K → HALF
5:21 | 7:51/mi
25K
2:04:30
15.53 mi
Rank: #16680 (+234)
HALF → 25K
19:27 | 8:02/mi
30K
2:29:58
18.64 mi
Rank: #16315 (+365)
25K → 30K
25:28 | 8:12/mi
20M
2:41:19
20.00 mi
Rank: #16220 (+95)
30K → 20M
11:21 | 8:22/mi
21M
2:50:05
21.00 mi
Rank: #16109 (+111)
20M → 21M
8:46 | 8:46/mi
35K
2:56:10
21.75 mi
Rank: #16046 (+63)
21M → 35K
6:05 | 8:08/mi
23M
3:06:40
23.00 mi
Rank: #15971 (+75)
35K → 23M
10:30 | 8:24/mi
24M
3:14:49
24.00 mi
Rank: #15912 (+59)
23M → 24M
8:09 | 8:09/mi
40K
3:21:54
24.85 mi
Rank: #15833 (+79)
24M → 40K
7:05 | 8:18/mi
25.2M
3:25:01
25.20 mi
Rank: #15812 (+21)
40K → 25.2M
3:07 | 9:03/mi
FINISH
3:33:15
26.22 mi
Rank: #15787 (+25)
25.2M → FINISH
8:14 | 8:05/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:45:03
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:48:12
Pace8:16 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:11:0825:128:0725:12
8:07
-
10K
6.21 mi11:36:0650:108:0524:58
8:03
-0:04
15K
9.32 mi12:00:551:14:598:0324:49
8:00
-0:03
20K
12.43 mi12:25:381:39:428:0224:43
7:58
-0:02
HALF
13.11 mi12:30:591:45:038:015:21
7:51
-0:07
25K
15.53 mi12:50:262:04:308:0119:27
8:02
+0:11
30K
18.64 mi13:15:542:29:588:0325:28
8:12
+0:10
20M
20.00 mi13:27:152:41:198:0411:21
8:22
+0:10
21M
21.00 mi13:36:012:50:058:068:46
8:46
+0:24
35K
21.75 mi13:42:062:56:108:076:05
8:08
-0:38
23M
23.00 mi13:52:363:06:408:0710:30
8:24
+0:16
24M
24.00 mi14:00:453:14:498:088:09
8:09
-0:15
40K
24.85 mi14:07:503:21:548:087:05
8:18
+0:09
25.2M
25.20 mi14:10:573:25:018:093:07
9:03
+0:45
FINISH
26.22 mi14:19:113:33:158:098:14
8:05
-0:58

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

7:51 /mi

Average Pace

8:08 /mi

Slowest Pace

9:03 /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

3:21:22

94% of race

Time at Steady Pace

11:53

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:08 /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 mi11:11:0825:128:0725:12
8:07
#17680
10K
6.21 mi11:36:0650:108:0524:58
8:03
#17612
15K
9.32 mi12:00:551:14:598:0324:49
8:00
#17393
20K
12.43 mi12:25:381:39:428:0224:43
7:58
#16966
HALF
13.11 mi12:30:591:45:038:015:21
7:51
#16914
25K
15.53 mi12:50:262:04:308:0119:27
8:02
#16680
30K
18.64 mi13:15:542:29:588:0325:28
8:12
#16315
20M
20.00 mi13:27:152:41:198:0411:21
8:22
#16220
21M
21.00 mi13:36:012:50:058:068:46
8:46
#16109
35K
21.75 mi13:42:062:56:108:076:05
8:08
#16046
23M
23.00 mi13:52:363:06:408:0710:30
8:24
#15971
24M
24.00 mi14:00:453:14:498:088:09
8:09
#15912
40K
24.85 mi14:07:503:21:548:087:05
8:18
#15833
25.2M
25.20 mi14:10:573:25:018:093:07
9:03
#15812
FINISH
26.22 mi14:19:113:33:158:098:14
8:05
#15787
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi176806315631516934(Top 58%)5875(Top 47%)5875(Top 329%)
10K6.21 mi3.10 mi17612+686259+566259+5617522(Top 60%)6216(Top 49%)6216(Top 348%)
15K9.32 mi3.11 mi17393+2196160+996160+9916934(Top 58%)5875(Top 47%)5875(Top 329%)
20K12.43 mi3.11 mi16966+4275914+2465914+24615808(Top 54%)5275(Top 42%)5275(Top 295%)
HALF13.11 mi0.68 mi16914+525886+285886+2816023(Top 55%)5358(Top 43%)5358(Top 300%)
25K15.53 mi2.42 mi16680+2345754+1325754+13215587(Top 54%)5190(Top 41%)5190(Top 291%)
30K18.64 mi3.11 mi16315+3655593+1615593+16114920(Top 51%)4933(Top 39%)4933(Top 276%)
20M20.00 mi1.36 mi16220+955555+385555+3815282(Top 53%)5236(Top 42%)5236(Top 293%)
21M21.00 mi1.00 mi16109+1115512+435512+4314804(Top 51%)5036(Top 40%)5036(Top 282%)
35K21.75 mi0.75 mi16046+635485+275485+2715396(Top 53%)5404(Top 43%)5404(Top 303%)
23M23.00 mi1.25 mi15971+755474+115474+1115044(Top 52%)5294(Top 42%)5294(Top 296%)
24M24.00 mi1.00 mi15912+595452+225452+2214771(Top 51%)5207(Top 41%)5207(Top 292%)
40K24.85 mi0.85 mi15833+795419+335419+3314384(Top 50%)5102(Top 41%)5102(Top 286%)
25.2M25.20 mi0.35 mi15812+215415+45415+415005(Top 52%)5455(Top 43%)5455(Top 305%)
FINISH26.22 mi1.02 mi15787+255425-105425-1015695(Top 54%)5781(Top 46%)5781(Top 324%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21
+97ft-345ft

Overall

16934

Females

5875

F45-49

5875

5K→10K

3.1 - 6.2 mi

Top 60%
×5
+79ft-138ft

Overall

17522

Females

6216

F45-49

6216

10K→15K

6.2 - 9.3 mi

Top 58%
×3
+67ft-78ft

Overall

16934

Females

5875

F45-49

5875

15K→20K

9.3 - 12.4 mi

Top 54%
×5
+106ft-86ft

Overall

15808

Females

5275

F45-49

5275

20K→HALF

12.4 - 13.1 mi

Top 55%
×2
+19ft-37ft

Overall

16023

Females

5358

F45-49

5358

HALF→25K

13.1 - 15.5 mi

Top 54%
×4
+66ft-88ft

Overall

15587

Females

5190

F45-49

5190

25K→30K

15.5 - 18.6 mi

Top 51%
×9
+181ft-148ft

Overall

14920

Females

4933

F45-49

4933

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15282

Females

5236

F45-49

5236

20M→21M

20.0 - 21.0 mi

Top 51%
×8
+106ft-24ft

Overall

14804

Females

5036

F45-49

5036

21M→35K

21.0 - 21.8 mi

Top 53%
×7
+17ft-86ft

Overall

15396

Females

5404

F45-49

5404

35K→23M

21.8 - 23.0 mi

Top 52%
×5
+23ft-63ft

Overall

15044

Females

5294

F45-49

5294

23M→24M

23.0 - 24.0 mi

Top 51%
×6
+12ft-82ft

Overall

14771

Females

5207

F45-49

5207

24M→40K

24.0 - 24.9 mi

Top 50%
×1
+6ft-20ft

Overall

14384

Females

5102

F45-49

5102

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1
+13ft-16ft

Overall

15005

Females

5455

F45-49

5455

25.2M→FINISH

25.2 - 26.2 mi

Top 54%
×2
+22ft-21ft

Overall

15695

Females

5781

F45-49

5781

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2589*
Passed By
696
Net Change
+1893
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17680
5K → 10K268*200+68#17680#17612
10K → 15K314*95+219#17612#17393
15K → 20K452*25+427#17393#16966
20K → HALF6210+52#16966#16914
HALF → 25K270*36+234#16914#16680
25K → 30K408*43+365#16680#16315
30K → 20M13540+95#16315#16220
20M → 21M14433+111#16220#16109
21M → 35K8926+63#16109#16046
35K → 23M13661+75#16046#15971
23M → 24M9536+59#15971#15912
24M → 40K10829+79#15912#15833
40K → 25.2M4019+21#15833#15812
25.2M → FINISH6843+25#15812#15787
TOTALS2589*696+1893

* 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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