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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chin-Yu Chang-Clark

Bib: 23326 •F •Age: N/A

NJ

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 28%
Age Group (F50-54)
#0 / 1233
Top 22%
Race Day Weather
51°/41°F
overcast clouds
Personalized for Chin-Yu

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 7:32/mi at mile 26.2

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Potential Focus Areas
One-time purchase · Instant access · Downloadable PDF · Shareable report

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
26:29
3.11 mi
Rank: #20227
Start → 5K
26:29 | 8:32/mi
10K
51:56
6.21 mi
Rank: #19373 (+854)
5K → 10K
25:27 | 8:12/mi
15K
1:17:05
9.32 mi
Rank: #18822 (+551)
10K → 15K
25:09 | 8:06/mi
20K
1:42:31
12.43 mi
Rank: #18466 (+356)
15K → 20K
25:26 | 8:12/mi
HALF
1:48:01
13.11 mi
Rank: #18407 (+59)
20K → HALF
5:30 | 8:05/mi
25K
2:07:43
15.53 mi
Rank: #18077 (+330)
HALF → 25K
19:42 | 8:08/mi
30K
2:32:59
18.64 mi
Rank: #17418 (+659)
25K → 30K
25:16 | 8:08/mi
20M
2:44:04
20.00 mi
Rank: #17161 (+257)
30K → 20M
11:05 | 8:10/mi
21M
2:52:22
21.00 mi
Rank: #16859 (+302)
20M → 21M
8:18 | 8:18/mi
35K
2:58:08
21.75 mi
Rank: #16674 (+185)
21M → 35K
5:46 | 7:43/mi
23M
3:07:59
23.00 mi
Rank: #16360 (+314)
35K → 23M
9:51 | 7:53/mi
24M
3:15:40
24.00 mi
Rank: #16133 (+227)
23M → 24M
7:41 | 7:41/mi
40K
3:22:18
24.85 mi
Rank: #15943 (+190)
24M → 40K
6:38 | 7:46/mi
25.2M
3:25:09
25.20 mi
Rank: #15844 (+99)
40K → 25.2M
2:51 | 8:16/mi
FINISH
3:32:50
26.22 mi
Rank: #15695 (+149)
25.2M → FINISH
7:41 | 7:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:48:01
Pace8:15 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:44:49
Pace8:00 /mi
📊Negative Split: 3.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:5326:298:3226:29
8:32
-
10K
6.21 mi11:55:2051:568:2225:27
8:12
-0:20
15K
9.32 mi12:20:291:17:058:1725:09
8:06
-0:06
20K
12.43 mi12:45:551:42:318:1525:26
8:12
+0:06
HALF
13.11 mi12:51:251:48:018:155:30
8:05
-0:07
25K
15.53 mi13:11:072:07:438:1419:42
8:08
+0:03
30K
18.64 mi13:36:232:32:598:1325:16
8:08
0:00
20M
20.00 mi13:47:282:44:048:1311:05
8:10
+0:02
21M
21.00 mi13:55:462:52:228:138:18
8:18
+0:08
35K
21.75 mi14:01:322:58:088:125:46
7:43
-0:35
23M
23.00 mi14:11:233:07:598:119:51
7:53
+0:10
24M
24.00 mi14:19:043:15:408:107:41
7:41
-0:12
40K
24.85 mi14:25:423:22:188:096:38
7:46
+0:05
25.2M
25.20 mi14:28:333:25:098:092:51
8:16
+0:30
FINISH
26.22 mi14:36:143:32:508:087:41
7:33
-0:43

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

7:33 /mi

Average Pace

8:07 /mi

Slowest Pace

8:32 /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

3:06:21

88% of race

Time at Steady Pace

26:29

12% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi11:29:5326:298:3226:29
8:32
#20227
10K
6.21 mi11:55:2051:568:2225:27
8:12
#19373
15K
9.32 mi12:20:291:17:058:1725:09
8:06
#18822
20K
12.43 mi12:45:551:42:318:1525:26
8:12
#18466
HALF
13.11 mi12:51:251:48:018:155:30
8:05
#18407
25K
15.53 mi13:11:072:07:438:1419:42
8:08
#18077
30K
18.64 mi13:36:232:32:598:1325:16
8:08
#17418
20M
20.00 mi13:47:282:44:048:1311:05
8:10
#17161
21M
21.00 mi13:55:462:52:228:138:18
8:18
#16859
35K
21.75 mi14:01:322:58:088:125:46
7:43
#16674
23M
23.00 mi14:11:233:07:598:119:51
7:53
#16360
24M
24.00 mi14:19:043:15:408:107:41
7:41
#16133
40K
24.85 mi14:25:423:22:188:096:38
7:46
#15943
25.2M
25.20 mi14:28:333:25:098:092:51
8:16
#15844
FINISH
26.22 mi14:36:143:32:508:087:41
7:33
#15695
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi202277760776017670(Top 61%)6288(Top 50%)6288(Top 510%)
10K6.21 mi3.10 mi19373+8547273+4877273+48718527(Top 64%)6755(Top 54%)6755(Top 548%)
15K9.32 mi3.11 mi18822+5516946+3276946+32717670(Top 61%)6288(Top 50%)6288(Top 510%)
20K12.43 mi3.11 mi18466+3566741+2056741+20517411(Top 60%)6162(Top 49%)6162(Top 500%)
HALF13.11 mi0.68 mi18407+596712+296712+2917583(Top 61%)6230(Top 50%)6230(Top 505%)
25K15.53 mi2.42 mi18077+3306536+1766536+17616302(Top 56%)5590(Top 44%)5590(Top 453%)
30K18.64 mi3.11 mi17418+6596196+3406196+34014459(Top 50%)4666(Top 37%)4666(Top 378%)
20M20.00 mi1.36 mi17161+2576064+1326064+13214003(Top 48%)4502(Top 36%)4502(Top 365%)
21M21.00 mi1.00 mi16859+3025915+1495915+14911917(Top 41%)3498(Top 28%)3498(Top 284%)
35K21.75 mi0.75 mi16674+1855825+905825+9012462(Top 43%)3812(Top 30%)3812(Top 309%)
23M23.00 mi1.25 mi16360+3145680+1455680+14511582(Top 40%)3408(Top 27%)3408(Top 276%)
24M24.00 mi1.00 mi16133+2275573+1075573+10711487(Top 40%)3451(Top 27%)3451(Top 280%)
40K24.85 mi0.85 mi15943+1905490+835490+8310799(Top 37%)3175(Top 25%)3175(Top 258%)
25.2M25.20 mi0.35 mi15844+995438+525438+5210212(Top 35%)2976(Top 24%)2976(Top 241%)
FINISH26.22 mi1.02 mi15695+1495373+655373+6511809(Top 41%)3778(Top 30%)3778(Top 306%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21
+97ft-345ft

Overall

17670

Females

6288

F50-54

6288

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18527

Females

6755

F50-54

6755

10K→15K

6.2 - 9.3 mi

Top 61%
×3
+67ft-78ft

Overall

17670

Females

6288

F50-54

6288

15K→20K

9.3 - 12.4 mi

Top 60%
×5
+106ft-86ft

Overall

17411

Females

6162

F50-54

6162

20K→HALF

12.4 - 13.1 mi

Top 61%
×2
+19ft-37ft

Overall

17583

Females

6230

F50-54

6230

HALF→25K

13.1 - 15.5 mi

Top 56%
×4
+66ft-88ft

Overall

16302

Females

5590

F50-54

5590

25K→30K

15.5 - 18.6 mi

Top 50%
×9
+181ft-148ft

Overall

14459

Females

4666

F50-54

4666

30K→20M

18.6 - 20.0 mi

Top 48%
×5
+64ft-50ft

Overall

14003

Females

4502

F50-54

4502

20M→21M

20.0 - 21.0 mi

Top 41%
×8
+106ft-24ft

Overall

11917

Females

3498

F50-54

3498

21M→35K

21.0 - 21.8 mi

Top 43%
×7
+17ft-86ft

Overall

12462

Females

3812

F50-54

3812

35K→23M

21.8 - 23.0 mi

Top 40%
×5
+23ft-63ft

Overall

11582

Females

3408

F50-54

3408

23M→24M

23.0 - 24.0 mi

Top 40%
×6
+12ft-82ft

Overall

11487

Females

3451

F50-54

3451

24M→40K

24.0 - 24.9 mi

Top 37%
×1
+6ft-20ft

Overall

10799

Females

3175

F50-54

3175

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1
+13ft-16ft

Overall

10212

Females

2976

F50-54

2976

25.2M→FINISH

25.2 - 26.2 mi

Top 41%
×2
+22ft-21ft

Overall

11809

Females

3778

F50-54

3778

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4682*
Passed By
150
Net Change
+4532
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20227
5K → 10K906*52+854#20227#19373
10K → 15K583*32+551#19373#18822
15K → 20K378*22+356#18822#18466
20K → HALF678+59#18466#18407
HALF → 25K337*7+330#18407#18077
25K → 30K662*3+659#18077#17418
30K → 20M260*3+257#17418#17161
20M → 21M304*2+302#17161#16859
21M → 35K1861+185#16859#16674
35K → 23M319*5+314#16674#16360
23M → 24M229*2+227#16360#16133
24M → 40K1933+190#16133#15943
40K → 25.2M1001+99#15943#15844
25.2M → FINISH1589+149#15844#15695
TOTALS4682*150+4532

* 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

Activity Data

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