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BOSTON MARATHON 2026

Lan Shen

Bib: 22898•F

CA

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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
Age Group (F50-54)
#0 / 1233
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
25:36
3.11 mi
Rank: #18488
Start → 5K
25:36 | 8:15/mi
10K
51:24
6.21 mi
Rank: #18864 (-376)
5K → 10K
25:48 | 8:19/mi
15K
1:17:18
9.32 mi
Rank: #18984 (-120)
10K → 15K
25:54 | 8:21/mi
20K
1:43:41
12.43 mi
Rank: #19038 (-54)
15K → 20K
26:23 | 8:30/mi
HALF
1:49:24
13.11 mi
Rank: #19066 (-28)
20K → HALF
5:43 | 8:24/mi
25K
2:10:09
15.53 mi
Rank: #19027 (+39)
HALF → 25K
20:45 | 8:34/mi
30K
2:37:50
18.64 mi
Rank: #18996 (+31)
25K → 30K
27:41 | 8:55/mi
20M
2:49:49
20.00 mi
Rank: #18916 (+80)
30K → 20M
11:59 | 8:50/mi
21M
2:59:46
21.00 mi
Rank: #19030 (-114)
20M → 21M
9:57 | 9:57/mi
35K
3:06:13
21.75 mi
Rank: #18984 (+46)
21M → 35K
6:27 | 8:38/mi
23M
3:18:04
23.00 mi
Rank: #19094 (-110)
35K → 23M
11:51 | 9:29/mi
24M
3:27:08
24.00 mi
Rank: #19134 (-40)
23M → 24M
9:04 | 9:04/mi
40K
3:35:25
24.85 mi
Rank: #19234 (-100)
24M → 40K
8:17 | 9:42/mi
25.2M
3:39:15
25.20 mi
Rank: #19352 (-118)
40K → 25.2M
3:50 | 11:07/mi
FINISH
3:49:00
26.22 mi
Rank: #19541 (-189)
25.2M → FINISH
9:45 | 9:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:49:24
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time1:59:36
Pace9:08 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:0025:368:1525:36
8:15
-
10K
6.21 mi11:53:4851:248:1725:48
8:19
+0:04
15K
9.32 mi12:19:421:17:188:1825:54
8:21
+0:02
20K
12.43 mi12:46:051:43:418:2126:23
8:30
+0:09
HALF
13.11 mi12:51:481:49:248:215:43
8:24
-0:06
25K
15.53 mi13:12:332:10:098:2320:45
8:34
+0:10
30K
18.64 mi13:40:142:37:508:2927:41
8:55
+0:21
20M
20.00 mi13:52:132:49:498:3011:59
8:50
-0:05
21M
21.00 mi14:02:102:59:468:349:57
9:57
+1:07
35K
21.75 mi14:08:373:06:138:346:27
8:38
-1:19
23M
23.00 mi14:20:283:18:048:3711:51
9:29
+0:51
24M
24.00 mi14:29:323:27:088:389:04
9:04
-0:25
40K
24.85 mi14:37:493:35:258:418:17
9:42
+0:38
25.2M
25.20 mi14:41:393:39:158:433:50
11:07
+1:25
FINISH
26.22 mi14:51:243:49:008:459:45
9:35
-1:32

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

8:15 /mi

Average Pace

8:44 /mi

Slowest Pace

11:07 /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

1:23:01

36% of race

Time at Steady Pace

1:42:19

45% of race

Time at Slower Pace

43:40

19% of race

Average Pace: 8:44 /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 mi11:28:0025:368:1525:36
8:15
#18488
10K
6.21 mi11:53:4851:248:1725:48
8:19
#18864
15K
9.32 mi12:19:421:17:188:1825:54
8:21
#18984
20K
12.43 mi12:46:051:43:418:2126:23
8:30
#19038
HALF
13.11 mi12:51:481:49:248:215:43
8:24
#19066
25K
15.53 mi13:12:332:10:098:2320:45
8:34
#19027
30K
18.64 mi13:40:142:37:508:2927:41
8:55
#18996
20M
20.00 mi13:52:132:49:498:3011:59
8:50
#18916
21M
21.00 mi14:02:102:59:468:349:57
9:57
#19030
35K
21.75 mi14:08:373:06:138:346:27
8:38
#18984
23M
23.00 mi14:20:283:18:048:3711:51
9:29
#19094
24M
24.00 mi14:29:323:27:088:389:04
9:04
#19134
40K
24.85 mi14:37:493:35:258:418:17
9:42
#19234
25.2M
25.20 mi14:41:393:39:158:433:50
11:07
#19352
FINISH
26.22 mi14:51:243:49:008:459:45
9:35
#19541
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi184886790679019210(Top 66%)7157(Top 57%)7157(Top 580%)
10K6.21 mi3.10 mi18864-3766995-2056995-20519215(Top 66%)7145(Top 57%)7145(Top 579%)
15K9.32 mi3.11 mi18984-1207044-497044-4919210(Top 66%)7157(Top 57%)7157(Top 580%)
20K12.43 mi3.11 mi19038-547081-377081-3719277(Top 66%)7233(Top 58%)7233(Top 587%)
HALF13.11 mi0.68 mi19066-287092-117092-1119600(Top 68%)7379(Top 59%)7379(Top 598%)
25K15.53 mi2.42 mi19027+397088+47088+418937(Top 65%)7091(Top 56%)7091(Top 575%)
30K18.64 mi3.11 mi18996+317107-197107-1919138(Top 66%)7287(Top 58%)7287(Top 591%)
20M20.00 mi1.36 mi18916+807073+347073+3418105(Top 62%)6823(Top 54%)6823(Top 553%)
21M21.00 mi1.00 mi19030-1147154-817154-8120271(Top 70%)7996(Top 64%)7996(Top 648%)
35K21.75 mi0.75 mi18984+467146+87146+818259(Top 63%)7041(Top 56%)7041(Top 571%)
23M23.00 mi1.25 mi19094-1107220-747220-7420510(Top 71%)8213(Top 65%)8213(Top 666%)
24M24.00 mi1.00 mi19134-407268-487268-4819758(Top 68%)7931(Top 63%)7931(Top 643%)
40K24.85 mi0.85 mi19234-1007337-697337-6921019(Top 72%)8585(Top 68%)8585(Top 696%)
25.2M25.20 mi0.35 mi19352-1187406-697406-6922659(Top 78%)9421(Top 75%)9421(Top 764%)
FINISH26.22 mi1.02 mi19541-1897511-1057511-10522581(Top 78%)9375(Top 75%)9375(Top 760%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19210

Females

7157

F50-54

7157

5K→10K

3.1 - 6.2 mi

Top 66%
×5
+79ft-138ft

Overall

19215

Females

7145

F50-54

7145

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19210

Females

7157

F50-54

7157

15K→20K

9.3 - 12.4 mi

Top 66%
×5
+106ft-86ft

Overall

19277

Females

7233

F50-54

7233

20K→HALF

12.4 - 13.1 mi

Top 68%
×2
+19ft-37ft

Overall

19600

Females

7379

F50-54

7379

HALF→25K

13.1 - 15.5 mi

Top 65%
×4
+66ft-88ft

Overall

18937

Females

7091

F50-54

7091

25K→30K

15.5 - 18.6 mi

Top 66%
×9
+181ft-148ft

Overall

19138

Females

7287

F50-54

7287

30K→20M

18.6 - 20.0 mi

Top 62%
×5
+64ft-50ft

Overall

18105

Females

6823

F50-54

6823

20M→21M

20.0 - 21.0 mi

Top 70%
×8
+106ft-24ft

Overall

20271

Females

7996

F50-54

7996

21M→35K

21.0 - 21.8 mi

Top 63%
×7
+17ft-86ft

Overall

18259

Females

7041

F50-54

7041

35K→23M

21.8 - 23.0 mi

Top 71%
×5
+23ft-63ft

Overall

20510

Females

8213

F50-54

8213

23M→24M

23.0 - 24.0 mi

Top 68%
×6
+12ft-82ft

Overall

19758

Females

7931

F50-54

7931

24M→40K

24.0 - 24.9 mi

Top 72%
×1
+6ft-20ft

Overall

21019

Females

8585

F50-54

8585

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1
+13ft-16ft

Overall

22659

Females

9421

F50-54

9421

25.2M→FINISH

25.2 - 26.2 mi

Top 78%
×2
+22ft-21ft

Overall

22581

Females

9375

F50-54

9375

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1198*
Passed By
1899
Net Change
-1053
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18488
5K → 10K130200-376#18488#18864
10K → 15K124200-120#18864#18984
15K → 20K138192-54#18984#19038
20K → HALF2351-28#19038#19066
HALF → 25K13394+39#19066#19027
25K → 30K226*195+31#19027#18996
30K → 20M12848+80#18996#18916
20M → 21M57171-114#18916#19030
21M → 35K7327+46#19030#18984
35K → 23M52162-110#18984#19094
23M → 24M64104-40#19094#19134
24M → 40K32132-100#19134#19234
40K → 25.2M5123-118#19234#19352
25.2M → FINISH13200-189#19352#19541
TOTALS1198*1899-1053

* 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

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing