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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Lei Shen

Bib: 20329 •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 38%
Masters (Masters Women)
#0 / 6862
Top 22%
Age Group (F40-44)
#0 / 1737
Top 45%
Race Day Weather
51°/41°F
overcast clouds
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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
23:36
3.11 mi
Rank: #13625
Start → 5K
23:36 | 7:36/mi
10K
47:29
6.21 mi
Rank: #14116 (-491)
5K → 10K
23:53 | 7:42/mi
15K
1:11:45
9.32 mi
Rank: #14537 (-421)
10K → 15K
24:16 | 7:49/mi
20K
1:36:22
12.43 mi
Rank: #14770 (-233)
15K → 20K
24:37 | 7:56/mi
HALF
1:41:34
13.11 mi
Rank: #14729 (+41)
20K → HALF
5:12 | 7:38/mi
25K
2:01:08
15.53 mi
Rank: #14923 (-194)
HALF → 25K
19:34 | 8:05/mi
30K
2:26:55
18.64 mi
Rank: #15033 (-110)
25K → 30K
25:47 | 8:18/mi
20M
2:38:12
20.00 mi
Rank: #15022 (+11)
30K → 20M
11:17 | 8:19/mi
21M
2:46:56
21.00 mi
Rank: #14943 (+79)
20M → 21M
8:44 | 8:44/mi
35K
2:52:57
21.75 mi
Rank: #14935 (+8)
21M → 35K
6:01 | 8:03/mi
23M
3:03:10
23.00 mi
Rank: #14827 (+108)
35K → 23M
10:13 | 8:10/mi
24M
3:11:17
24.00 mi
Rank: #14806 (+21)
23M → 24M
8:07 | 8:07/mi
40K
3:18:09
24.85 mi
Rank: #14734 (+72)
24M → 40K
6:52 | 8:02/mi
25.2M
3:21:20
25.20 mi
Rank: #14752 (-18)
40K → 25.2M
3:11 | 9:14/mi
FINISH
3:28:57
26.22 mi
Rank: #14617 (+135)
25.2M → FINISH
7:37 | 7:29/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:34
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:47:23
Pace8:12 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4923:367:3623:36
7:36
-
10K
6.21 mi11:48:4247:297:3923:53
7:42
+0:06
15K
9.32 mi12:12:581:11:457:4224:16
7:49
+0:07
20K
12.43 mi12:37:351:36:227:4624:37
7:56
+0:07
HALF
13.11 mi12:42:471:41:347:455:12
7:38
-0:18
25K
15.53 mi13:02:212:01:087:4819:34
8:05
+0:27
30K
18.64 mi13:28:082:26:557:5325:47
8:18
+0:13
20M
20.00 mi13:39:252:38:127:5511:17
8:19
+0:01
21M
21.00 mi13:48:092:46:567:578:44
8:44
+0:25
35K
21.75 mi13:54:102:52:577:586:01
8:03
-0:41
23M
23.00 mi14:04:233:03:107:5810:13
8:10
+0:07
24M
24.00 mi14:12:303:11:177:598:07
8:07
-0:03
40K
24.85 mi14:19:223:18:097:596:52
8:02
-0:05
25.2M
25.20 mi14:22:333:21:208:003:11
9:14
+1:12
FINISH
26.22 mi14:30:103:28:577:597:37
7:29
-1:45

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

7:29 /mi

Average Pace

7:59 /mi

Slowest Pace

9:14 /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

1:24:34

40% of race

Time at Steady Pace

1:15:24

36% of race

Time at Slower Pace

48:59

23% of race

Average Pace: 7:58 /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 mi11:24:4923:367:3623:36
7:36
#13625
10K
6.21 mi11:48:4247:297:3923:53
7:42
#14116
15K
9.32 mi12:12:581:11:457:4224:16
7:49
#14537
20K
12.43 mi12:37:351:36:227:4624:37
7:56
#14770
HALF
13.11 mi12:42:471:41:347:455:12
7:38
#14729
25K
15.53 mi13:02:212:01:087:4819:34
8:05
#14923
30K
18.64 mi13:28:082:26:557:5325:47
8:18
#15033
20M
20.00 mi13:39:252:38:127:5511:17
8:19
#15022
21M
21.00 mi13:48:092:46:567:578:44
8:44
#14943
35K
21.75 mi13:54:102:52:577:586:01
8:03
#14935
23M
23.00 mi14:04:233:03:107:5810:13
8:10
#14827
24M
24.00 mi14:12:303:11:177:598:07
8:07
#14806
40K
24.85 mi14:19:223:18:097:596:52
8:02
#14734
25.2M
25.20 mi14:22:333:21:208:003:11
9:14
#14752
FINISH
26.22 mi14:30:103:28:577:597:37
7:29
#14617
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi136253858385815442(Top 53%)5010(Top 40%)5010(Top 288%)
10K6.21 mi3.10 mi14116-4914166-3084166-30814661(Top 51%)4491(Top 36%)4491(Top 259%)
15K9.32 mi3.11 mi14537-4214444-2784444-27815442(Top 53%)5010(Top 40%)5010(Top 288%)
20K12.43 mi3.11 mi14770-2334606-1624606-16215537(Top 54%)5106(Top 41%)5106(Top 294%)
HALF13.11 mi0.68 mi14729+414576+304576+3014201(Top 49%)4285(Top 34%)4285(Top 247%)
25K15.53 mi2.42 mi14923-1944696-1204696-12015912(Top 55%)5370(Top 43%)5370(Top 309%)
30K18.64 mi3.11 mi15033-1104813-1174813-11715608(Top 54%)5305(Top 42%)5305(Top 305%)
20M20.00 mi1.36 mi15022+114841-284841-2814989(Top 52%)5049(Top 40%)5049(Top 291%)
21M21.00 mi1.00 mi14943+794826+154826+1514592(Top 50%)4896(Top 39%)4896(Top 282%)
35K21.75 mi0.75 mi14935+84836-104836-1014795(Top 51%)5076(Top 40%)5076(Top 292%)
23M23.00 mi1.25 mi14827+1084796+404796+4013572(Top 47%)4483(Top 36%)4483(Top 258%)
24M24.00 mi1.00 mi14806+214801-54801-514558(Top 50%)5092(Top 40%)5092(Top 293%)
40K24.85 mi0.85 mi14734+724780+214780+2112754(Top 44%)4203(Top 33%)4203(Top 242%)
25.2M25.20 mi0.35 mi14752-184800-204800-2015980(Top 55%)5934(Top 47%)5934(Top 342%)
FINISH26.22 mi1.02 mi14617+1354740+604740+6011260(Top 39%)3495(Top 28%)3495(Top 201%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21
+97ft-345ft

Overall

15442

Females

5010

F40-44

5010

5K→10K

3.1 - 6.2 mi

Top 51%
×5
+79ft-138ft

Overall

14661

Females

4491

F40-44

4491

10K→15K

6.2 - 9.3 mi

Top 53%
×3
+67ft-78ft

Overall

15442

Females

5010

F40-44

5010

15K→20K

9.3 - 12.4 mi

Top 54%
×5
+106ft-86ft

Overall

15537

Females

5106

F40-44

5106

20K→HALF

12.4 - 13.1 mi

Top 49%
×2
+19ft-37ft

Overall

14201

Females

4285

F40-44

4285

HALF→25K

13.1 - 15.5 mi

Top 55%
×4
+66ft-88ft

Overall

15912

Females

5370

F40-44

5370

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15608

Females

5305

F40-44

5305

30K→20M

18.6 - 20.0 mi

Top 52%
×5
+64ft-50ft

Overall

14989

Females

5049

F40-44

5049

20M→21M

20.0 - 21.0 mi

Top 50%
×8
+106ft-24ft

Overall

14592

Females

4896

F40-44

4896

21M→35K

21.0 - 21.8 mi

Top 51%
×7
+17ft-86ft

Overall

14795

Females

5076

F40-44

5076

35K→23M

21.8 - 23.0 mi

Top 47%
×5
+23ft-63ft

Overall

13572

Females

4483

F40-44

4483

23M→24M

23.0 - 24.0 mi

Top 50%
×6
+12ft-82ft

Overall

14558

Females

5092

F40-44

5092

24M→40K

24.0 - 24.9 mi

Top 44%
×1
+6ft-20ft

Overall

12754

Females

4203

F40-44

4203

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1
+13ft-16ft

Overall

15980

Females

5934

F40-44

5934

25.2M→FINISH

25.2 - 26.2 mi

Top 39%
×2
+22ft-21ft

Overall

11260

Females

3495

F40-44

3495

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1439
Passed By
1412
Net Change
-992
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13625
5K → 10K124200-491#13625#14116
10K → 15K93200-421#14116#14537
15K → 20K105200-233#14537#14770
20K → HALF5514+41#14770#14729
HALF → 25K85200-194#14729#14923
25K → 30K163200-110#14923#15033
30K → 20M10695+11#15033#15022
20M → 21M13960+79#15022#14943
21M → 35K5547+8#14943#14935
35K → 23M16052+108#14935#14827
23M → 24M8160+21#14827#14806
24M → 40K9927+72#14806#14734
40K → 25.2M2543-18#14734#14752
25.2M → FINISH14914+135#14752#14617
TOTALS14391412-992
📊

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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