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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Cai Chao

Bib: 10047 •F •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 43%
Gender (Female)
#0 / 12578
Top 28%
Age Group (F18-39)
#0 / 5716
Top 47%
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
21:38
3.11 mi
Rank: #8279
Start → 5K
21:38 | 6:58/mi
10K
43:30
6.21 mi
Rank: #8609 (-330)
5K → 10K
21:52 | 7:03/mi
15K
1:05:55
9.32 mi
Rank: #9083 (-474)
10K → 15K
22:25 | 7:13/mi
20K
1:29:00
12.43 mi
Rank: #9544 (-461)
15K → 20K
23:05 | 7:26/mi
HALF
1:34:34
13.11 mi
Rank: #10026 (-482)
20K → HALF
5:34 | 8:10/mi
25K
1:55:06
15.53 mi
Rank: #11633 (-1607)
HALF → 25K
20:32 | 8:28/mi
30K
2:19:46
18.64 mi
Rank: #11858 (-225)
25K → 30K
24:40 | 7:57/mi
20M
2:30:10
20.00 mi
Rank: #11719 (+139)
30K → 20M
10:24 | 7:40/mi
21M
2:38:12
21.00 mi
Rank: #11598 (+121)
20M → 21M
8:02 | 8:02/mi
35K
2:43:58
21.75 mi
Rank: #11603 (-5)
21M → 35K
5:46 | 7:43/mi
23M
2:54:38
23.00 mi
Rank: #11866 (-263)
35K → 23M
10:40 | 8:32/mi
24M
3:02:41
24.00 mi
Rank: #11952 (-86)
23M → 24M
8:03 | 8:03/mi
40K
3:10:35
24.85 mi
Rank: #12315 (-363)
24M → 40K
7:54 | 9:15/mi
25.2M
3:13:47
25.20 mi
Rank: #12374 (-59)
40K → 25.2M
3:12 | 9:17/mi
FINISH
3:22:14
26.22 mi
Rank: #12552 (-178)
25.2M → FINISH
8:27 | 8:18/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:34:34
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time1:47:40
Pace8:13 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:38:1621:386:5821:38
6:58
-
10K
6.21 mi11:00:0843:307:0121:52
7:03
+0:05
15K
9.32 mi11:22:331:05:557:0522:25
7:13
+0:10
20K
12.43 mi11:45:381:29:007:1023:05
7:26
+0:13
HALF
13.11 mi11:51:121:34:347:135:34
8:10
+0:44
25K
15.53 mi12:11:441:55:067:2520:32
8:28
+0:18
30K
18.64 mi12:36:242:19:467:3024:40
7:57
-0:31
20M
20.00 mi12:46:482:30:107:3110:24
7:40
-0:17
21M
21.00 mi12:54:502:38:127:338:02
8:02
+0:22
35K
21.75 mi13:00:362:43:587:335:46
7:43
-0:19
23M
23.00 mi13:11:162:54:387:3610:40
8:32
+0:49
24M
24.00 mi13:19:193:02:417:378:03
8:03
-0:29
40K
24.85 mi13:27:133:10:357:417:54
9:15
+1:12
25.2M
25.20 mi13:30:253:13:477:423:12
9:17
+0:02
FINISH
26.22 mi13:38:523:22:147:448:27
8:18
-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

6:58 /mi

Average Pace

7:43 /mi

Slowest Pace

9:17 /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

1:39:24

49% of race

Time at Steady Pace

1:00:32

30% of race

Time at Slower Pace

42:18

21% of race

Average Pace: 7:43 /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 mi10:38:1621:386:5821:38
6:58
#8279
10K
6.21 mi11:00:0843:307:0121:52
7:03
#8609
15K
9.32 mi11:22:331:05:557:0522:25
7:13
#9083
20K
12.43 mi11:45:381:29:007:1023:05
7:26
#9544
HALF
13.11 mi11:51:121:34:347:135:34
8:10
#10026
25K
15.53 mi12:11:441:55:067:2520:32
8:28
#11633
30K
18.64 mi12:36:242:19:467:3024:40
7:57
#11858
20M
20.00 mi12:46:482:30:107:3110:24
7:40
#11719
21M
21.00 mi12:54:502:38:127:338:02
8:02
#11598
35K
21.75 mi13:00:362:43:587:335:46
7:43
#11603
23M
23.00 mi13:11:162:54:387:3610:40
8:32
#11866
24M
24.00 mi13:19:193:02:417:378:03
8:03
#11952
40K
24.85 mi13:27:133:10:357:417:54
9:15
#12315
25.2M
25.20 mi13:30:253:13:477:423:12
9:17
#12374
FINISH
26.22 mi13:38:523:22:147:448:27
8:18
#12552
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 mi82791168116810276(Top 35%)2098(Top 17%)2098(Top 37%)
10K6.21 mi3.10 mi8609-3301315-1471315-1478982(Top 31%)1472(Top 12%)1472(Top 26%)
15K9.32 mi3.11 mi9083-4741492-1771492-17710276(Top 35%)2098(Top 17%)2098(Top 37%)
20K12.43 mi3.11 mi9544-4611713-2211713-22111408(Top 39%)2793(Top 22%)2793(Top 49%)
HALF13.11 mi0.68 mi10026-4821965-2521965-25218203(Top 63%)6576(Top 52%)6576(Top 115%)
25K15.53 mi2.42 mi11633-16072832-8672832-86718380(Top 63%)6774(Top 54%)6774(Top 119%)
30K18.64 mi3.11 mi11858-2253006-1743006-17413051(Top 45%)3868(Top 31%)3868(Top 68%)
20M20.00 mi1.36 mi11719+1392944+622944+6210315(Top 36%)2565(Top 20%)2565(Top 45%)
21M21.00 mi1.00 mi11598+1212889+552889+5510156(Top 35%)2577(Top 20%)2577(Top 45%)
35K21.75 mi0.75 mi11603-52918-292918-2912406(Top 43%)3756(Top 30%)3756(Top 66%)
23M23.00 mi1.25 mi11866-2633089-1713089-17115857(Top 55%)5750(Top 46%)5750(Top 101%)
24M24.00 mi1.00 mi11952-863180-913180-9114125(Top 49%)4862(Top 39%)4862(Top 85%)
40K24.85 mi0.85 mi12315-3633401-2213401-22119437(Top 67%)7796(Top 62%)7796(Top 136%)
25.2M25.20 mi0.35 mi12374-593437-363437-3616219(Top 56%)6055(Top 48%)6055(Top 106%)
FINISH26.22 mi1.02 mi12552-1783572-1353572-13516985(Top 59%)6493(Top 52%)6493(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21
+97ft-345ft

Overall

10276

Females

2098

F18-39

2098

5K→10K

3.1 - 6.2 mi

Top 31%
×5
+79ft-138ft

Overall

8982

Females

1472

F18-39

1472

10K→15K

6.2 - 9.3 mi

Top 35%
×3
+67ft-78ft

Overall

10276

Females

2098

F18-39

2098

15K→20K

9.3 - 12.4 mi

Top 39%
×5
+106ft-86ft

Overall

11408

Females

2793

F18-39

2793

20K→HALF

12.4 - 13.1 mi

Top 63%
×2
+19ft-37ft

Overall

18203

Females

6576

F18-39

6576

HALF→25K

13.1 - 15.5 mi

Top 63%
×4
+66ft-88ft

Overall

18380

Females

6774

F18-39

6774

25K→30K

15.5 - 18.6 mi

Top 45%
×9
+181ft-148ft

Overall

13051

Females

3868

F18-39

3868

30K→20M

18.6 - 20.0 mi

Top 36%
×5
+64ft-50ft

Overall

10315

Females

2565

F18-39

2565

20M→21M

20.0 - 21.0 mi

Top 35%
×8
+106ft-24ft

Overall

10156

Females

2577

F18-39

2577

21M→35K

21.0 - 21.8 mi

Top 43%
×7
+17ft-86ft

Overall

12406

Females

3756

F18-39

3756

35K→23M

21.8 - 23.0 mi

Top 55%
×5
+23ft-63ft

Overall

15857

Females

5750

F18-39

5750

23M→24M

23.0 - 24.0 mi

Top 49%
×6
+12ft-82ft

Overall

14125

Females

4862

F18-39

4862

24M→40K

24.0 - 24.9 mi

Top 67%
×1
+6ft-20ft

Overall

19437

Females

7796

F18-39

7796

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1
+13ft-16ft

Overall

16219

Females

6055

F18-39

6055

25.2M→FINISH

25.2 - 26.2 mi

Top 59%
×2
+22ft-21ft

Overall

16985

Females

6493

F18-39

6493

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
871
Passed By
2149
Net Change
-4273
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8279
5K → 10K110200-330#8279#8609
10K → 15K36200-474#8609#9083
15K → 20K44200-461#9083#9544
20K → HALF1200-482#9544#10026
HALF → 25K7200-1607#10026#11633
25K → 30K125200-225#11633#11858
30K → 20M15920+139#11858#11719
20M → 21M15029+121#11719#11598
21M → 35K5661-5#11598#11603
35K → 23M41200-263#11603#11866
23M → 24M70156-86#11866#11952
24M → 40K20200-363#11952#12315
40K → 25.2M2483-59#12315#12374
25.2M → FINISH28200-178#12374#12552
TOTALS8712149-4273
📊

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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