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BOSTON MARATHON 2026

Pui Yee Li

Bib: 21107•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 49%
Age Group (F45-49)
#0 / 1786
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
25:05
3.11 mi
Rank: #17449
Start → 5K
25:05 | 8:05/mi
10K
50:42
6.21 mi
Rank: #18168 (-719)
5K → 10K
25:37 | 8:15/mi
15K
1:16:25
9.32 mi
Rank: #18378 (-210)
10K → 15K
25:43 | 8:17/mi
20K
1:42:45
12.43 mi
Rank: #18565 (-187)
15K → 20K
26:20 | 8:29/mi
HALF
1:48:22
13.11 mi
Rank: #18568 (-3)
20K → HALF
5:37 | 8:15/mi
25K
2:09:15
15.53 mi
Rank: #18654 (-86)
HALF → 25K
20:53 | 8:37/mi
30K
2:37:22
18.64 mi
Rank: #18847 (-193)
25K → 30K
28:07 | 9:03/mi
20M
2:49:46
20.00 mi
Rank: #18900 (-53)
30K → 20M
12:24 | 9:08/mi
21M
2:59:35
21.00 mi
Rank: #18986 (-86)
20M → 21M
9:49 | 9:49/mi
35K
3:06:04
21.75 mi
Rank: #18948 (+38)
21M → 35K
6:29 | 8:40/mi
23M
3:17:31
23.00 mi
Rank: #18944 (+4)
35K → 23M
11:27 | 9:09/mi
24M
3:26:25
24.00 mi
Rank: #18955 (-11)
23M → 24M
8:54 | 8:54/mi
40K
3:34:15
24.85 mi
Rank: #18958 (-3)
24M → 40K
7:50 | 9:10/mi
25.2M
3:37:54
25.20 mi
Rank: #19025 (-67)
40K → 25.2M
3:39 | 10:36/mi
FINISH
3:46:53
26.22 mi
Rank: #19053 (-28)
25.2M → FINISH
8:59 | 8:49/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:48:22
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:58:31
Pace9:03 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0125:058:0525:05
8:05
-
10K
6.21 mi11:52:3850:428:1025:37
8:15
+0:10
15K
9.32 mi12:18:211:16:258:1225:43
8:17
+0:02
20K
12.43 mi12:44:411:42:458:1726:20
8:29
+0:12
HALF
13.11 mi12:50:181:48:228:165:37
8:15
-0:14
25K
15.53 mi13:11:112:09:158:2020:53
8:37
+0:22
30K
18.64 mi13:39:182:37:228:2728:07
9:03
+0:26
20M
20.00 mi13:51:422:49:468:3012:24
9:08
+0:05
21M
21.00 mi14:01:312:59:358:349:49
9:49
+0:41
35K
21.75 mi14:08:003:06:048:346:29
8:40
-1:09
23M
23.00 mi14:19:273:17:318:3611:27
9:09
+0:29
24M
24.00 mi14:28:213:26:258:378:54
8:54
-0:15
40K
24.85 mi14:36:113:34:158:387:50
9:10
+0:16
25.2M
25.20 mi14:39:503:37:548:393:39
10:36
+1:26
FINISH
26.22 mi14:48:493:46:538:408:59
8:49
-1:47

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

8:40 /mi

Slowest Pace

10:36 /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

1:48:22

48% of race

Time at Steady Pace

1:25:46

38% of race

Time at Slower Pace

32:45

14% of race

Average Pace: 8:39 /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 mi11:27:0125:058:0525:05
8:05
#17449
10K
6.21 mi11:52:3850:428:1025:37
8:15
#18168
15K
9.32 mi12:18:211:16:258:1225:43
8:17
#18378
20K
12.43 mi12:44:411:42:458:1726:20
8:29
#18565
HALF
13.11 mi12:50:181:48:228:165:37
8:15
#18568
25K
15.53 mi13:11:112:09:158:2020:53
8:37
#18654
30K
18.64 mi13:39:182:37:228:2728:07
9:03
#18847
20M
20.00 mi13:51:422:49:468:3012:24
9:08
#18900
21M
21.00 mi14:01:312:59:358:349:49
9:49
#18986
35K
21.75 mi14:08:003:06:048:346:29
8:40
#18948
23M
23.00 mi14:19:273:17:318:3611:27
9:09
#18944
24M
24.00 mi14:28:213:26:258:378:54
8:54
#18955
40K
24.85 mi14:36:113:34:158:387:50
9:10
#18958
25.2M
25.20 mi14:39:503:37:548:393:39
10:36
#19025
FINISH
26.22 mi14:48:493:46:538:408:59
8:49
#19053
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi174496185618518853(Top 65%)6949(Top 55%)6949(Top 389%)
10K6.21 mi3.10 mi18168-7196593-4086593-40818852(Top 65%)6947(Top 55%)6947(Top 389%)
15K9.32 mi3.11 mi18378-2106699-1066699-10618853(Top 65%)6949(Top 55%)6949(Top 389%)
20K12.43 mi3.11 mi18565-1876809-1106809-11019174(Top 66%)7166(Top 57%)7166(Top 401%)
HALF13.11 mi0.68 mi18568-36812-36812-318697(Top 64%)6887(Top 55%)6887(Top 386%)
25K15.53 mi2.42 mi18654-866872-606872-6019249(Top 66%)7265(Top 58%)7265(Top 407%)
30K18.64 mi3.11 mi18847-1937021-1497021-14919830(Top 68%)7655(Top 61%)7655(Top 429%)
20M20.00 mi1.36 mi18900-537062-417062-4119564(Top 67%)7575(Top 60%)7575(Top 424%)
21M21.00 mi1.00 mi18986-867125-637125-6319823(Top 68%)7754(Top 62%)7754(Top 434%)
35K21.75 mi0.75 mi18948+387122+37122+318498(Top 64%)7161(Top 57%)7161(Top 401%)
23M23.00 mi1.25 mi18944+47136-147136-1419197(Top 66%)7569(Top 60%)7569(Top 424%)
24M24.00 mi1.00 mi18955-117164-287164-2819033(Top 66%)7535(Top 60%)7535(Top 422%)
40K24.85 mi0.85 mi18958-37183-197183-1919151(Top 66%)7654(Top 61%)7654(Top 429%)
25.2M25.20 mi0.35 mi19025-677237-547237-5421328(Top 73%)8728(Top 69%)8728(Top 489%)
FINISH26.22 mi1.02 mi19053-287262-257262-2519730(Top 68%)7948(Top 63%)7948(Top 445%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21
+97ft-345ft

Overall

18853

Females

6949

F45-49

6949

5K→10K

3.1 - 6.2 mi

Top 65%
×5
+79ft-138ft

Overall

18852

Females

6947

F45-49

6947

10K→15K

6.2 - 9.3 mi

Top 65%
×3
+67ft-78ft

Overall

18853

Females

6949

F45-49

6949

15K→20K

9.3 - 12.4 mi

Top 66%
×5
+106ft-86ft

Overall

19174

Females

7166

F45-49

7166

20K→HALF

12.4 - 13.1 mi

Top 64%
×2
+19ft-37ft

Overall

18697

Females

6887

F45-49

6887

HALF→25K

13.1 - 15.5 mi

Top 66%
×4
+66ft-88ft

Overall

19249

Females

7265

F45-49

7265

25K→30K

15.5 - 18.6 mi

Top 68%
×9
+181ft-148ft

Overall

19830

Females

7655

F45-49

7655

30K→20M

18.6 - 20.0 mi

Top 67%
×5
+64ft-50ft

Overall

19564

Females

7575

F45-49

7575

20M→21M

20.0 - 21.0 mi

Top 68%
×8
+106ft-24ft

Overall

19823

Females

7754

F45-49

7754

21M→35K

21.0 - 21.8 mi

Top 64%
×7
+17ft-86ft

Overall

18498

Females

7161

F45-49

7161

35K→23M

21.8 - 23.0 mi

Top 66%
×5
+23ft-63ft

Overall

19197

Females

7569

F45-49

7569

23M→24M

23.0 - 24.0 mi

Top 66%
×6
+12ft-82ft

Overall

19033

Females

7535

F45-49

7535

24M→40K

24.0 - 24.9 mi

Top 66%
×1
+6ft-20ft

Overall

19151

Females

7654

F45-49

7654

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1
+13ft-16ft

Overall

21328

Females

8728

F45-49

8728

25.2M→FINISH

25.2 - 26.2 mi

Top 68%
×2
+22ft-21ft

Overall

19730

Females

7948

F45-49

7948

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1022
Passed By
1718
Net Change
-1604
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17449
5K → 10K68200-719#17449#18168
10K → 15K107200-210#18168#18378
15K → 20K103200-187#18378#18565
20K → HALF2629-3#18565#18568
HALF → 25K112198-86#18568#18654
25K → 30K121200-193#18654#18847
30K → 20M80133-53#18847#18900
20M → 21M59145-86#18900#18986
21M → 35K7436+38#18986#18948
35K → 23M8177+4#18948#18944
23M → 24M6172-11#18944#18955
24M → 40K6366-3#18955#18958
40K → 25.2M1380-67#18958#19025
25.2M → FINISH5482-28#19025#19053
TOTALS10221718-1604
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing