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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chunyun Ji

Bib: 21161 •F •Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 44%
Masters (Masters Women)
#0 / 6862
Top 30%
Age Group (F55-59)
#0 / 951
Top 10%
Race Day Weather
51°/41°F
overcast clouds
Personalized for Chunyun

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 · 7:34/mi at mile 9.3

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
23:58
3.11 mi
Rank: #14700
Start → 5K
23:58 | 7:43/mi
10K
47:46
6.21 mi
Rank: #14514 (+186)
5K → 10K
23:48 | 7:40/mi
15K
1:11:17
9.32 mi
Rank: #14081 (+433)
10K → 15K
23:31 | 7:35/mi
20K
1:35:51
12.43 mi
Rank: #14421 (-340)
15K → 20K
24:34 | 7:55/mi
HALF
1:41:20
13.11 mi
Rank: #14589 (-168)
20K → HALF
5:29 | 8:03/mi
25K
2:01:05
15.53 mi
Rank: #14893 (-304)
HALF → 25K
19:45 | 8:09/mi
30K
2:28:01
18.64 mi
Rank: #15522 (-629)
25K → 30K
26:56 | 8:41/mi
20M
2:40:41
20.00 mi
Rank: #16018 (-496)
30K → 20M
12:40 | 9:20/mi
21M
2:50:50
21.00 mi
Rank: #16363 (-345)
20M → 21M
10:09 | 10:09/mi
35K
2:57:02
21.75 mi
Rank: #16312 (+51)
21M → 35K
6:12 | 8:18/mi
23M
3:07:36
23.00 mi
Rank: #16240 (+72)
35K → 23M
10:34 | 8:27/mi
24M
3:15:30
24.00 mi
Rank: #16088 (+152)
23M → 24M
7:54 | 7:54/mi
40K
3:22:24
24.85 mi
Rank: #15958 (+130)
24M → 40K
6:54 | 8:05/mi
25.2M
3:25:47
25.20 mi
Rank: #15996 (-38)
40K → 25.2M
3:23 | 9:49/mi
FINISH
3:34:25
26.22 mi
Rank: #16073 (-77)
25.2M → FINISH
8:38 | 8:29/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:20
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:53:05
Pace8:38 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:09:2523:587:4323:58
7:43
-
10K
6.21 mi11:33:1347:467:4223:48
7:40
-0:03
15K
9.32 mi11:56:441:11:177:3923:31
7:35
-0:05
20K
12.43 mi12:21:181:35:517:4324:34
7:55
+0:20
HALF
13.11 mi12:26:471:41:207:445:29
8:03
+0:08
25K
15.53 mi12:46:322:01:057:4819:45
8:09
+0:06
30K
18.64 mi13:13:282:28:017:5726:56
8:41
+0:32
20M
20.00 mi13:26:082:40:418:0312:40
9:20
+0:39
21M
21.00 mi13:36:172:50:508:0910:09
10:09
+0:49
35K
21.75 mi13:42:292:57:028:096:12
8:18
-1:51
23M
23.00 mi13:53:033:07:368:1010:34
8:27
+0:09
24M
24.00 mi14:00:573:15:308:097:54
7:54
-0:33
40K
24.85 mi14:07:513:22:248:096:54
8:05
+0:11
25.2M
25.20 mi14:11:143:25:478:103:23
9:49
+1:44
FINISH
26.22 mi14:19:523:34:258:128:38
8:29
-1:20

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

7:35 /mi

Average Pace

8:11 /mi

Slowest Pace

10:09 /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

1:11:17

33% of race

Time at Steady Pace

1:30:00

42% of race

Time at Slower Pace

53:08

25% of race

Average Pace: 8:11 /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 mi11:09:2523:587:4323:58
7:43
#14700
10K
6.21 mi11:33:1347:467:4223:48
7:40
#14514
15K
9.32 mi11:56:441:11:177:3923:31
7:35
#14081
20K
12.43 mi12:21:181:35:517:4324:34
7:55
#14421
HALF
13.11 mi12:26:471:41:207:445:29
8:03
#14589
25K
15.53 mi12:46:322:01:057:4819:45
8:09
#14893
30K
18.64 mi13:13:282:28:017:5726:56
8:41
#15522
20M
20.00 mi13:26:082:40:418:0312:40
9:20
#16018
21M
21.00 mi13:36:172:50:508:0910:09
10:09
#16363
35K
21.75 mi13:42:292:57:028:096:12
8:18
#16312
23M
23.00 mi13:53:033:07:368:1010:34
8:27
#16240
24M
24.00 mi14:00:573:15:308:097:54
7:54
#16088
40K
24.85 mi14:07:513:22:248:096:54
8:05
#15958
25.2M
25.20 mi14:11:143:25:478:103:23
9:49
#15996
FINISH
26.22 mi14:19:523:34:258:128:38
8:29
#16073
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi147004488448813437(Top 46%)3834(Top 30%)3834(Top 403%)
10K6.21 mi3.10 mi14514+1864402+864402+8614433(Top 50%)4364(Top 35%)4364(Top 459%)
15K9.32 mi3.11 mi14081+4334176+2264176+22613437(Top 46%)3834(Top 30%)3834(Top 403%)
20K12.43 mi3.11 mi14421-3404392-2164392-21615412(Top 53%)5044(Top 40%)5044(Top 530%)
HALF13.11 mi0.68 mi14589-1684480-884480-8817430(Top 60%)6151(Top 49%)6151(Top 647%)
25K15.53 mi2.42 mi14893-3044680-2004680-20016443(Top 57%)5677(Top 45%)5677(Top 597%)
30K18.64 mi3.11 mi15522-6295113-4335113-43317842(Top 61%)6579(Top 52%)6579(Top 692%)
20M20.00 mi1.36 mi16018-4965430-3175430-31720368(Top 70%)8004(Top 64%)8004(Top 842%)
21M21.00 mi1.00 mi16363-3455649-2195649-21920919(Top 72%)8327(Top 66%)8327(Top 876%)
35K21.75 mi0.75 mi16312+515634+155634+1516375(Top 56%)5960(Top 47%)5960(Top 627%)
23M23.00 mi1.25 mi16240+725618+165618+1615371(Top 53%)5471(Top 43%)5471(Top 575%)
24M24.00 mi1.00 mi16088+1525552+665552+6613077(Top 45%)4305(Top 34%)4305(Top 453%)
40K24.85 mi0.85 mi15958+1305502+505502+5013022(Top 45%)4347(Top 35%)4347(Top 457%)
25.2M25.20 mi0.35 mi15996-385525-235525-2318686(Top 64%)7374(Top 59%)7374(Top 775%)
FINISH26.22 mi1.02 mi16073-775594-695594-6918018(Top 62%)7053(Top 56%)7053(Top 742%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21
+97ft-345ft

Overall

13437

Females

3834

F55-59

3834

5K→10K

3.1 - 6.2 mi

Top 50%
×5
+79ft-138ft

Overall

14433

Females

4364

F55-59

4364

10K→15K

6.2 - 9.3 mi

Top 46%
×3
+67ft-78ft

Overall

13437

Females

3834

F55-59

3834

15K→20K

9.3 - 12.4 mi

Top 53%
×5
+106ft-86ft

Overall

15412

Females

5044

F55-59

5044

20K→HALF

12.4 - 13.1 mi

Top 60%
×2
+19ft-37ft

Overall

17430

Females

6151

F55-59

6151

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16443

Females

5677

F55-59

5677

25K→30K

15.5 - 18.6 mi

Top 61%
×9
+181ft-148ft

Overall

17842

Females

6579

F55-59

6579

30K→20M

18.6 - 20.0 mi

Top 70%
×5
+64ft-50ft

Overall

20368

Females

8004

F55-59

8004

20M→21M

20.0 - 21.0 mi

Top 72%
×8
+106ft-24ft

Overall

20919

Females

8327

F55-59

8327

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16375

Females

5960

F55-59

5960

35K→23M

21.8 - 23.0 mi

Top 53%
×5
+23ft-63ft

Overall

15371

Females

5471

F55-59

5471

23M→24M

23.0 - 24.0 mi

Top 45%
×6
+12ft-82ft

Overall

13077

Females

4305

F55-59

4305

24M→40K

24.0 - 24.9 mi

Top 45%
×1
+6ft-20ft

Overall

13022

Females

4347

F55-59

4347

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1
+13ft-16ft

Overall

18686

Females

7374

F55-59

7374

25.2M→FINISH

25.2 - 26.2 mi

Top 62%
×2
+22ft-21ft

Overall

18018

Females

7053

F55-59

7053

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1696*
Passed By
1689
Net Change
-1373
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14700
5K → 10K386*200+186#14700#14514
10K → 15K476*43+433#14514#14081
15K → 20K79200-340#14081#14421
20K → HALF4172-168#14421#14589
HALF → 25K66200-304#14589#14893
25K → 30K69200-629#14893#15522
30K → 20M19200-496#15522#16018
20M → 21M33200-345#16018#16363
21M → 35K8534+51#16363#16312
35K → 23M12856+72#16312#16240
23M → 24M1619+152#16240#16088
24M → 40K1399+130#16088#15958
40K → 25.2M1452-38#15958#15996
25.2M → FINISH37114-77#15996#16073
TOTALS1696*1689-1373

* 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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Activity Data

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