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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Yafei Li

Bib: 18908 •F •Age: N/A

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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
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  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
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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
27:21
3.11 mi
Rank: #21705
Start → 5K
27:21 | 8:49/mi
10K
54:46
6.21 mi
Rank: #21882 (-177)
5K → 10K
27:25 | 8:50/mi
15K
1:22:01
9.32 mi
Rank: #21785 (+97)
10K → 15K
27:15 | 8:47/mi
20K
1:50:21
12.43 mi
Rank: #21937 (-152)
15K → 20K
28:20 | 9:08/mi
HALF
1:56:18
13.11 mi
Rank: #21896 (+41)
20K → HALF
5:57 | 8:44/mi
25K
2:17:38
15.53 mi
Rank: #21602 (+294)
HALF → 25K
21:20 | 8:48/mi
30K
2:45:30
18.64 mi
Rank: #21216 (+386)
25K → 30K
27:52 | 8:59/mi
20M
2:57:45
20.00 mi
Rank: #21026 (+190)
30K → 20M
12:15 | 9:02/mi
21M
3:06:55
21.00 mi
Rank: #20800 (+226)
20M → 21M
9:10 | 9:10/mi
35K
3:13:14
21.75 mi
Rank: #20686 (+114)
21M → 35K
6:19 | 8:27/mi
23M
3:24:12
23.00 mi
Rank: #20513 (+173)
35K → 23M
10:58 | 8:46/mi
24M
3:32:43
24.00 mi
Rank: #20374 (+139)
23M → 24M
8:31 | 8:31/mi
40K
3:39:59
24.85 mi
Rank: #20202 (+172)
24M → 40K
7:16 | 8:30/mi
25.2M
3:43:04
25.20 mi
Rank: #20136 (+66)
40K → 25.2M
3:05 | 8:57/mi
FINISH
3:51:18
26.22 mi
Rank: #19988 (+148)
25.2M → FINISH
8:14 | 8:05/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:56:18
Pace8:53 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:55:00
Pace8:47 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:10:3127:218:4927:21
8:49
-
10K
6.21 mi11:37:5654:468:4927:25
8:50
+0:01
15K
9.32 mi12:05:111:22:018:4827:15
8:47
-0:03
20K
12.43 mi12:33:311:50:218:5328:20
9:08
+0:21
HALF
13.11 mi12:39:281:56:188:535:57
8:44
-0:24
25K
15.53 mi13:00:482:17:388:5221:20
8:48
+0:04
30K
18.64 mi13:28:402:45:308:5327:52
8:59
+0:11
20M
20.00 mi13:40:552:57:458:5412:15
9:02
+0:03
21M
21.00 mi13:50:053:06:558:559:10
9:10
+0:08
35K
21.75 mi13:56:243:13:148:546:19
8:27
-0:43
23M
23.00 mi14:07:223:24:128:5310:58
8:46
+0:19
24M
24.00 mi14:15:533:32:438:528:31
8:31
-0:15
40K
24.85 mi14:23:093:39:598:527:16
8:30
-0:01
25.2M
25.20 mi14:26:143:43:048:523:05
8:57
+0:27
FINISH
26.22 mi14:34:283:51:188:508:14
8:05
-0:52

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

8:05 /mi

Average Pace

8:50 /mi

Slowest Pace

9:10 /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

2:30:36

65% of race

Time at Steady Pace

1:20:42

35% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /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 mi11:10:3127:218:4927:21
8:49
#21705
10K
6.21 mi11:37:5654:468:4927:25
8:50
#21882
15K
9.32 mi12:05:111:22:018:4827:15
8:47
#21785
20K
12.43 mi12:33:311:50:218:5328:20
9:08
#21937
HALF
13.11 mi12:39:281:56:188:535:57
8:44
#21896
25K
15.53 mi13:00:482:17:388:5221:20
8:48
#21602
30K
18.64 mi13:28:402:45:308:5327:52
8:59
#21216
20M
20.00 mi13:40:552:57:458:5412:15
9:02
#21026
21M
21.00 mi13:50:053:06:558:559:10
9:10
#20800
35K
21.75 mi13:56:243:13:148:546:19
8:27
#20686
23M
23.00 mi14:07:223:24:128:5310:58
8:46
#20513
24M
24.00 mi14:15:533:32:438:528:31
8:31
#20374
40K
24.85 mi14:23:093:39:598:527:16
8:30
#20202
25.2M
25.20 mi14:26:143:43:048:523:05
8:57
#20136
FINISH
26.22 mi14:34:283:51:188:508:14
8:05
#19988
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 mi217058537853721591(Top 74%)8423(Top 67%)8423(Top 147%)
10K6.21 mi3.10 mi21882-1778604-678604-6722022(Top 76%)8656(Top 69%)8656(Top 151%)
15K9.32 mi3.11 mi21785+978551+538551+5321591(Top 74%)8423(Top 67%)8423(Top 147%)
20K12.43 mi3.11 mi21937-1528623-728623-7222440(Top 77%)8883(Top 71%)8883(Top 155%)
HALF13.11 mi0.68 mi21896+418605+188605+1821471(Top 74%)8355(Top 66%)8355(Top 146%)
25K15.53 mi2.42 mi21602+2948461+1448461+14420237(Top 70%)7774(Top 62%)7774(Top 136%)
30K18.64 mi3.11 mi21216+3868282+1798282+17919446(Top 67%)7459(Top 59%)7459(Top 130%)
20M20.00 mi1.36 mi21026+1908209+738209+7319038(Top 66%)7304(Top 58%)7304(Top 128%)
21M21.00 mi1.00 mi20800+2268096+1138096+11317040(Top 59%)6286(Top 50%)6286(Top 110%)
35K21.75 mi0.75 mi20686+1148049+478049+4717343(Top 60%)6551(Top 52%)6551(Top 115%)
23M23.00 mi1.25 mi20513+1737970+797970+7917289(Top 60%)6586(Top 52%)6586(Top 115%)
24M24.00 mi1.00 mi20374+1397913+577913+5717055(Top 59%)6516(Top 52%)6516(Top 114%)
40K24.85 mi0.85 mi20202+1727849+647849+6415741(Top 54%)5838(Top 46%)5838(Top 102%)
25.2M25.20 mi0.35 mi20136+667822+277822+2714511(Top 50%)5203(Top 41%)5203(Top 91%)
FINISH26.22 mi1.02 mi19988+1487765+577765+5715729(Top 54%)5815(Top 46%)5815(Top 102%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21
+97ft-345ft

Overall

21591

Females

8423

F18-39

8423

5K→10K

3.1 - 6.2 mi

Top 76%
×5
+79ft-138ft

Overall

22022

Females

8656

F18-39

8656

10K→15K

6.2 - 9.3 mi

Top 74%
×3
+67ft-78ft

Overall

21591

Females

8423

F18-39

8423

15K→20K

9.3 - 12.4 mi

Top 77%
×5
+106ft-86ft

Overall

22440

Females

8883

F18-39

8883

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21471

Females

8355

F18-39

8355

HALF→25K

13.1 - 15.5 mi

Top 70%
×4
+66ft-88ft

Overall

20237

Females

7774

F18-39

7774

25K→30K

15.5 - 18.6 mi

Top 67%
×9
+181ft-148ft

Overall

19446

Females

7459

F18-39

7459

30K→20M

18.6 - 20.0 mi

Top 66%
×5
+64ft-50ft

Overall

19038

Females

7304

F18-39

7304

20M→21M

20.0 - 21.0 mi

Top 59%
×8
+106ft-24ft

Overall

17040

Females

6286

F18-39

6286

21M→35K

21.0 - 21.8 mi

Top 60%
×7
+17ft-86ft

Overall

17343

Females

6551

F18-39

6551

35K→23M

21.8 - 23.0 mi

Top 60%
×5
+23ft-63ft

Overall

17289

Females

6586

F18-39

6586

23M→24M

23.0 - 24.0 mi

Top 59%
×6
+12ft-82ft

Overall

17055

Females

6516

F18-39

6516

24M→40K

24.0 - 24.9 mi

Top 54%
×1
+6ft-20ft

Overall

15741

Females

5838

F18-39

5838

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1
+13ft-16ft

Overall

14511

Females

5203

F18-39

5203

25.2M→FINISH

25.2 - 26.2 mi

Top 54%
×2
+22ft-21ft

Overall

15729

Females

5815

F18-39

5815

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2566*
Passed By
603
Net Change
+1717
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21705
5K → 10K197200-177#21705#21882
10K → 15K220*123+97#21882#21785
15K → 20K120200-152#21785#21937
20K → HALF5514+41#21937#21896
HALF → 25K307*13+294#21896#21602
25K → 30K401*15+386#21602#21216
30K → 20M1988+190#21216#21026
20M → 21M226*0+226#21026#20800
21M → 35K1173+114#20800#20686
35K → 23M18613+173#20686#20513
23M → 24M1456+139#20513#20374
24M → 40K1742+172#20374#20202
40K → 25.2M660+66#20202#20136
25.2M → FINISH1546+148#20136#19988
TOTALS2566*603+1717

* 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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