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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jing Chai

Bib: 9723 •F •Age: N/A

MI

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 32%
Gender (Female)
#0 / 12578
Top 15%
Age Group (F18-39)
#0 / 5716
Top 27%
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
21:43
3.11 mi
Rank: #8490
Start → 5K
21:43 | 7:00/mi
10K
43:11
6.21 mi
Rank: #8218 (+272)
5K → 10K
21:28 | 6:55/mi
15K
1:05:10
9.32 mi
Rank: #8525 (-307)
10K → 15K
21:59 | 7:05/mi
20K
1:27:59
12.43 mi
Rank: #8952 (-427)
15K → 20K
22:49 | 7:21/mi
HALF
1:32:55
13.11 mi
Rank: #9029 (-77)
20K → HALF
4:56 | 7:15/mi
25K
1:51:00
15.53 mi
Rank: #9270 (-241)
HALF → 25K
18:05 | 7:28/mi
30K
2:15:06
18.64 mi
Rank: #9633 (-363)
25K → 30K
24:06 | 7:46/mi
20M
2:25:39
20.00 mi
Rank: #9701 (-68)
30K → 20M
10:33 | 7:47/mi
21M
2:33:52
21.00 mi
Rank: #9758 (-57)
20M → 21M
8:13 | 8:13/mi
35K
2:39:19
21.75 mi
Rank: #9699 (+59)
21M → 35K
5:27 | 7:18/mi
23M
2:48:44
23.00 mi
Rank: #9597 (+102)
35K → 23M
9:25 | 7:32/mi
24M
2:55:59
24.00 mi
Rank: #9481 (+116)
23M → 24M
7:15 | 7:15/mi
40K
3:02:20
24.85 mi
Rank: #9409 (+72)
24M → 40K
6:21 | 7:26/mi
25.2M
3:05:01
25.20 mi
Rank: #9358 (+51)
40K → 25.2M
2:41 | 7:47/mi
FINISH
3:12:06
26.22 mi
Rank: #9228 (+130)
25.2M → FINISH
7:05 | 6:58/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:32:55
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:39:11
Pace7:34 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:38:2121:437:0021:43
7:00
-
10K
6.21 mi10:59:4943:116:5721:28
6:55
-0:05
15K
9.32 mi11:21:481:05:107:0021:59
7:05
+0:10
20K
12.43 mi11:44:371:27:597:0522:49
7:21
+0:16
HALF
13.11 mi11:49:331:32:557:064:56
7:15
-0:06
25K
15.53 mi12:07:381:51:007:0918:05
7:28
+0:13
30K
18.64 mi12:31:442:15:067:1524:06
7:46
+0:18
20M
20.00 mi12:42:172:25:397:1710:33
7:47
+0:01
21M
21.00 mi12:50:302:33:527:208:13
8:13
+0:26
35K
21.75 mi12:55:572:39:197:205:27
7:18
-0:55
23M
23.00 mi13:05:222:48:447:219:25
7:32
+0:14
24M
24.00 mi13:12:372:55:597:207:15
7:15
-0:17
40K
24.85 mi13:18:583:02:207:216:21
7:26
+0:11
25.2M
25.20 mi13:21:393:05:017:212:41
7:47
+0:21
FINISH
26.22 mi13:28:443:12:067:207:05
6:58
-0:49

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

6:55 /mi

Average Pace

7:20 /mi

Slowest Pace

8:13 /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

2:26:33

76% of race

Time at Steady Pace

37:20

19% of race

Time at Slower Pace

8:13

4% of race

Average Pace: 7:20 /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 mi10:38:2121:437:0021:43
7:00
#8490
10K
6.21 mi10:59:4943:116:5721:28
6:55
#8218
15K
9.32 mi11:21:481:05:107:0021:59
7:05
#8525
20K
12.43 mi11:44:371:27:597:0522:49
7:21
#8952
HALF
13.11 mi11:49:331:32:557:064:56
7:15
#9029
25K
15.53 mi12:07:381:51:007:0918:05
7:28
#9270
30K
18.64 mi12:31:442:15:067:1524:06
7:46
#9633
20M
20.00 mi12:42:172:25:397:1710:33
7:47
#9701
21M
21.00 mi12:50:302:33:527:208:13
8:13
#9758
35K
21.75 mi12:55:572:39:197:205:27
7:18
#9699
23M
23.00 mi13:05:222:48:447:219:25
7:32
#9597
24M
24.00 mi13:12:372:55:597:207:15
7:15
#9481
40K
24.85 mi13:18:583:02:207:216:21
7:26
#9409
25.2M
25.20 mi13:21:393:05:017:212:41
7:47
#9358
FINISH
26.22 mi13:28:443:12:067:207:05
6:58
#9228
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 mi8490123812389092(Top 31%)1534(Top 12%)1534(Top 27%)
10K6.21 mi3.10 mi8218+2721162+761162+768014(Top 28%)1096(Top 9%)1096(Top 19%)
15K9.32 mi3.11 mi8525-3071284-1221284-1229092(Top 31%)1534(Top 12%)1534(Top 27%)
20K12.43 mi3.11 mi8952-4271463-1791463-17910594(Top 37%)2346(Top 19%)2346(Top 41%)
HALF13.11 mi0.68 mi9029-771491-281491-2810676(Top 37%)2300(Top 18%)2300(Top 40%)
25K15.53 mi2.42 mi9270-2411625-1341625-13411062(Top 38%)2659(Top 21%)2659(Top 47%)
30K18.64 mi3.11 mi9633-3631856-2311856-23111660(Top 40%)3116(Top 25%)3116(Top 55%)
20M20.00 mi1.36 mi9701-681915-591915-5911088(Top 38%)2925(Top 23%)2925(Top 51%)
21M21.00 mi1.00 mi9758-571966-511966-5111300(Top 39%)3134(Top 25%)3134(Top 55%)
35K21.75 mi0.75 mi9699+591952+141952+149233(Top 32%)2117(Top 17%)2117(Top 37%)
23M23.00 mi1.25 mi9597+1021940+121940+129076(Top 31%)2129(Top 17%)2129(Top 37%)
24M24.00 mi1.00 mi9481+1161903+371903+378252(Top 28%)1836(Top 15%)1836(Top 32%)
40K24.85 mi0.85 mi9409+721896+71896+78377(Top 29%)1973(Top 16%)1973(Top 35%)
25.2M25.20 mi0.35 mi9358+511885+111885+117073(Top 24%)1472(Top 12%)1472(Top 26%)
FINISH26.22 mi1.02 mi9228+1301857+281857+287203(Top 25%)1559(Top 12%)1559(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21
+97ft-345ft

Overall

9092

Females

1534

F18-39

1534

5K→10K

3.1 - 6.2 mi

Top 28%
×5
+79ft-138ft

Overall

8014

Females

1096

F18-39

1096

10K→15K

6.2 - 9.3 mi

Top 31%
×3
+67ft-78ft

Overall

9092

Females

1534

F18-39

1534

15K→20K

9.3 - 12.4 mi

Top 37%
×5
+106ft-86ft

Overall

10594

Females

2346

F18-39

2346

20K→HALF

12.4 - 13.1 mi

Top 37%
×2
+19ft-37ft

Overall

10676

Females

2300

F18-39

2300

HALF→25K

13.1 - 15.5 mi

Top 38%
×4
+66ft-88ft

Overall

11062

Females

2659

F18-39

2659

25K→30K

15.5 - 18.6 mi

Top 40%
×9
+181ft-148ft

Overall

11660

Females

3116

F18-39

3116

30K→20M

18.6 - 20.0 mi

Top 38%
×5
+64ft-50ft

Overall

11088

Females

2925

F18-39

2925

20M→21M

20.0 - 21.0 mi

Top 39%
×8
+106ft-24ft

Overall

11300

Females

3134

F18-39

3134

21M→35K

21.0 - 21.8 mi

Top 32%
×7
+17ft-86ft

Overall

9233

Females

2117

F18-39

2117

35K→23M

21.8 - 23.0 mi

Top 31%
×5
+23ft-63ft

Overall

9076

Females

2129

F18-39

2129

23M→24M

23.0 - 24.0 mi

Top 28%
×6
+12ft-82ft

Overall

8252

Females

1836

F18-39

1836

24M→40K

24.0 - 24.9 mi

Top 29%
×1
+6ft-20ft

Overall

8377

Females

1973

F18-39

1973

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1
+13ft-16ft

Overall

7073

Females

1472

F18-39

1472

25.2M→FINISH

25.2 - 26.2 mi

Top 25%
×2
+22ft-21ft

Overall

7203

Females

1559

F18-39

1559

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1412*
Passed By
1380
Net Change
-738
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8490
5K → 10K364*92+272#8490#8218
10K → 15K49200-307#8218#8525
15K → 20K42200-427#8525#8952
20K → HALF683-77#8952#9029
HALF → 25K58200-241#9029#9270
25K → 30K83200-363#9270#9633
30K → 20M63131-68#9633#9701
20M → 21M58115-57#9701#9758
21M → 35K7819+59#9758#9699
35K → 23M14947+102#9699#9597
23M → 24M14125+116#9597#9481
24M → 40K10735+72#9481#9409
40K → 25.2M6211+51#9409#9358
25.2M → FINISH15222+130#9358#9228
TOTALS1412*1380-738

* 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

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OTQ

Olympic Trials Qualifying analysis available

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