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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Tianchun Cai

Bib: 17985 •F •Age: N/A

NY

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
24:51
3.11 mi
Rank: #16957
Start → 5K
24:51 | 8:00/mi
10K
50:04
6.21 mi
Rank: #17500 (-543)
5K → 10K
25:13 | 8:07/mi
15K
1:15:29
9.32 mi
Rank: #17757 (-257)
10K → 15K
25:25 | 8:11/mi
20K
1:41:32
12.43 mi
Rank: #17973 (-216)
15K → 20K
26:03 | 8:24/mi
HALF
1:47:15
13.11 mi
Rank: #18060 (-87)
20K → HALF
5:43 | 8:24/mi
25K
2:08:36
15.53 mi
Rank: #18409 (-349)
HALF → 25K
21:21 | 8:49/mi
30K
2:36:05
18.64 mi
Rank: #18470 (-61)
25K → 30K
27:29 | 8:51/mi
20M
2:48:16
20.00 mi
Rank: #18470
30K → 20M
12:11 | 8:59/mi
21M
2:57:57
21.00 mi
Rank: #18516 (-46)
20M → 21M
9:41 | 9:41/mi
35K
3:04:22
21.75 mi
Rank: #18481 (+35)
21M → 35K
6:25 | 8:35/mi
23M
3:15:10
23.00 mi
Rank: #18371 (+110)
35K → 23M
10:48 | 8:38/mi
24M
3:23:41
24.00 mi
Rank: #18296 (+75)
23M → 24M
8:31 | 8:31/mi
40K
3:31:04
24.85 mi
Rank: #18225 (+71)
24M → 40K
7:23 | 8:39/mi
25.2M
3:34:16
25.20 mi
Rank: #18181 (+44)
40K → 25.2M
3:12 | 9:17/mi
FINISH
3:42:15
26.22 mi
Rank: #18003 (+178)
25.2M → FINISH
7:59 | 7:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:15
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time1:55:00
Pace8:47 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:2524:518:0024:51
8:00
-
10K
6.21 mi11:32:3850:048:0425:13
8:07
+0:07
15K
9.32 mi11:58:031:15:298:0625:25
8:11
+0:04
20K
12.43 mi12:24:061:41:328:1126:03
8:24
+0:13
HALF
13.11 mi12:29:491:47:158:115:43
8:24
0:00
25K
15.53 mi12:51:102:08:368:1721:21
8:49
+0:25
30K
18.64 mi13:18:392:36:058:2327:29
8:51
+0:02
20M
20.00 mi13:30:502:48:168:2512:11
8:59
+0:08
21M
21.00 mi13:40:312:57:578:299:41
9:41
+0:42
35K
21.75 mi13:46:563:04:228:296:25
8:35
-1:06
23M
23.00 mi13:57:443:15:108:3010:48
8:38
+0:03
24M
24.00 mi14:06:153:23:418:308:31
8:31
-0:07
40K
24.85 mi14:13:383:31:048:307:23
8:39
+0:08
25.2M
25.20 mi14:16:503:34:168:313:12
9:17
+0:38
FINISH
26.22 mi14:24:493:42:158:297:59
7:51
-1:26

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

8:29 /mi

Slowest Pace

9:41 /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

1:23:28

38% of race

Time at Steady Pace

1:26:14

39% of race

Time at Slower Pace

52:33

24% of race

Average Pace: 8:29 /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 mi11:07:2524:518:0024:51
8:00
#16957
10K
6.21 mi11:32:3850:048:0425:13
8:07
#17500
15K
9.32 mi11:58:031:15:298:0625:25
8:11
#17757
20K
12.43 mi12:24:061:41:328:1126:03
8:24
#17973
HALF
13.11 mi12:29:491:47:158:115:43
8:24
#18060
25K
15.53 mi12:51:102:08:368:1721:21
8:49
#18409
30K
18.64 mi13:18:392:36:058:2327:29
8:51
#18470
20M
20.00 mi13:30:502:48:168:2512:11
8:59
#18470
21M
21.00 mi13:40:312:57:578:299:41
9:41
#18516
35K
21.75 mi13:46:563:04:228:296:25
8:35
#18481
23M
23.00 mi13:57:443:15:108:3010:48
8:38
#18371
24M
24.00 mi14:06:153:23:418:308:31
8:31
#18296
40K
24.85 mi14:13:383:31:048:307:23
8:39
#18225
25.2M
25.20 mi14:16:503:34:168:313:12
9:17
#18181
FINISH
26.22 mi14:24:493:42:158:297:59
7:51
#18003
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 mi169575903590318242(Top 63%)6604(Top 53%)6604(Top 116%)
10K6.21 mi3.10 mi17500-5436211-3086211-30818090(Top 62%)6536(Top 52%)6536(Top 114%)
15K9.32 mi3.11 mi17757-2576353-1426353-14218242(Top 63%)6604(Top 53%)6604(Top 116%)
20K12.43 mi3.11 mi17973-2166475-1226475-12218627(Top 64%)6869(Top 55%)6869(Top 120%)
HALF13.11 mi0.68 mi18060-876525-506525-5019569(Top 67%)7348(Top 58%)7348(Top 129%)
25K15.53 mi2.42 mi18409-3496732-2076732-20720261(Top 70%)7784(Top 62%)7784(Top 136%)
30K18.64 mi3.11 mi18470-616808-766808-7618815(Top 65%)7109(Top 57%)7109(Top 124%)
20M20.00 mi1.36 mi184706825-176825-1718810(Top 65%)7189(Top 57%)7189(Top 126%)
21M21.00 mi1.00 mi18516-466866-416866-4119327(Top 67%)7492(Top 60%)7492(Top 131%)
35K21.75 mi0.75 mi18481+356856+106856+1018027(Top 62%)6901(Top 55%)6901(Top 121%)
23M23.00 mi1.25 mi18371+1106815+416815+4116512(Top 57%)6152(Top 49%)6152(Top 108%)
24M24.00 mi1.00 mi18296+756790+256790+2517036(Top 59%)6497(Top 52%)6497(Top 114%)
40K24.85 mi0.85 mi18225+716765+256765+2516514(Top 57%)6264(Top 50%)6264(Top 110%)
25.2M25.20 mi0.35 mi18181+446754+116754+1116308(Top 56%)6144(Top 49%)6144(Top 107%)
FINISH26.22 mi1.02 mi18003+1786665+896665+8914079(Top 49%)4967(Top 39%)4967(Top 87%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21
+97ft-345ft

Overall

18242

Females

6604

F18-39

6604

5K→10K

3.1 - 6.2 mi

Top 62%
×5
+79ft-138ft

Overall

18090

Females

6536

F18-39

6536

10K→15K

6.2 - 9.3 mi

Top 63%
×3
+67ft-78ft

Overall

18242

Females

6604

F18-39

6604

15K→20K

9.3 - 12.4 mi

Top 64%
×5
+106ft-86ft

Overall

18627

Females

6869

F18-39

6869

20K→HALF

12.4 - 13.1 mi

Top 67%
×2
+19ft-37ft

Overall

19569

Females

7348

F18-39

7348

HALF→25K

13.1 - 15.5 mi

Top 70%
×4
+66ft-88ft

Overall

20261

Females

7784

F18-39

7784

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

18815

Females

7109

F18-39

7109

30K→20M

18.6 - 20.0 mi

Top 65%
×5
+64ft-50ft

Overall

18810

Females

7189

F18-39

7189

20M→21M

20.0 - 21.0 mi

Top 67%
×8
+106ft-24ft

Overall

19327

Females

7492

F18-39

7492

21M→35K

21.0 - 21.8 mi

Top 62%
×7
+17ft-86ft

Overall

18027

Females

6901

F18-39

6901

35K→23M

21.8 - 23.0 mi

Top 57%
×5
+23ft-63ft

Overall

16512

Females

6152

F18-39

6152

23M→24M

23.0 - 24.0 mi

Top 59%
×6
+12ft-82ft

Overall

17036

Females

6497

F18-39

6497

24M→40K

24.0 - 24.9 mi

Top 57%
×1
+6ft-20ft

Overall

16514

Females

6264

F18-39

6264

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1
+13ft-16ft

Overall

16308

Females

6144

F18-39

6144

25.2M→FINISH

25.2 - 26.2 mi

Top 49%
×2
+22ft-21ft

Overall

14079

Females

4967

F18-39

4967

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1347
Passed By
1442
Net Change
-1046
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16957
5K → 10K97200-543#16957#17500
10K → 15K99200-257#17500#17757
15K → 20K108200-216#17757#17973
20K → HALF14101-87#17973#18060
HALF → 25K56200-349#18060#18409
25K → 30K165200-61#18409#18470
30K → 20M90900#18470#18470
20M → 21M63109-46#18470#18516
21M → 35K6833+35#18516#18481
35K → 23M15040+110#18481#18371
23M → 24M10025+75#18371#18296
24M → 40K9524+71#18296#18225
40K → 25.2M5511+44#18225#18181
25.2M → FINISH1879+178#18181#18003
TOTALS13471442-1046
📊

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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