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BOSTON MARATHON 2026

Lilly Chen

Bib: 23709 •F •Age: N/A

MA

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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 (F50-54)
#0 / 1233
Top 49%
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
26:20
3.11 mi
Rank: #19956
Start → 5K
26:20 | 8:29/mi
10K
52:07
6.21 mi
Rank: #19558 (+398)
5K → 10K
25:47 | 8:18/mi
15K
1:17:53
9.32 mi
Rank: #19334 (+224)
10K → 15K
25:46 | 8:18/mi
20K
1:43:29
12.43 mi
Rank: #18929 (+405)
15K → 20K
25:36 | 8:15/mi
HALF
1:48:59
13.11 mi
Rank: #18866 (+63)
20K → HALF
5:30 | 8:05/mi
25K
2:09:48
15.53 mi
Rank: #18881 (-15)
HALF → 25K
20:49 | 8:36/mi
30K
2:37:18
18.64 mi
Rank: #18825 (+56)
25K → 30K
27:30 | 8:52/mi
20M
2:49:37
20.00 mi
Rank: #18856 (-31)
30K → 20M
12:19 | 9:05/mi
21M
2:59:39
21.00 mi
Rank: #19004 (-148)
20M → 21M
10:02 | 10:02/mi
35K
3:06:08
21.75 mi
Rank: #18962 (+42)
21M → 35K
6:29 | 8:40/mi
23M
3:17:38
23.00 mi
Rank: #18975 (-13)
35K → 23M
11:30 | 9:12/mi
24M
3:26:15
24.00 mi
Rank: #18911 (+64)
23M → 24M
8:37 | 8:37/mi
40K
3:34:25
24.85 mi
Rank: #19004 (-93)
24M → 40K
8:10 | 9:34/mi
25.2M
3:37:50
25.20 mi
Rank: #19005 (-1)
40K → 25.2M
3:25 | 9:55/mi
FINISH
3:46:47
26.22 mi
Rank: #19025 (-20)
25.2M → FINISH
8:57 | 8:47/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:48:59
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time1:57:48
Pace9:00 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:2326:208:2926:20
8:29
-
10K
6.21 mi11:55:1052:078:2425:47
8:18
-0:11
15K
9.32 mi12:20:561:17:538:2225:46
8:18
0:00
20K
12.43 mi12:46:321:43:298:2025:36
8:15
-0:03
HALF
13.11 mi12:52:021:48:598:195:30
8:05
-0:10
25K
15.53 mi13:12:512:09:488:2220:49
8:36
+0:31
30K
18.64 mi13:40:212:37:188:2727:30
8:52
+0:16
20M
20.00 mi13:52:402:49:378:2912:19
9:05
+0:13
21M
21.00 mi14:02:422:59:398:3410:02
10:02
+0:57
35K
21.75 mi14:09:113:06:088:346:29
8:40
-1:22
23M
23.00 mi14:20:413:17:388:3611:30
9:12
+0:32
24M
24.00 mi14:29:183:26:158:368:37
8:37
-0:35
40K
24.85 mi14:37:283:34:258:388:10
9:34
+0:57
25.2M
25.20 mi14:40:533:37:508:393:25
9:55
+0:21
FINISH
26.22 mi14:49:503:46:478:408:57
8:47
-1:08

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

8:39 /mi

Slowest Pace

10:02 /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

1:22:39

36% of race

Time at Steady Pace

1:38:42

44% of race

Time at Slower Pace

45:26

20% 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 mi11:29:2326:208:2926:20
8:29
#19956
10K
6.21 mi11:55:1052:078:2425:47
8:18
#19558
15K
9.32 mi12:20:561:17:538:2225:46
8:18
#19334
20K
12.43 mi12:46:321:43:298:2025:36
8:15
#18929
HALF
13.11 mi12:52:021:48:598:195:30
8:05
#18866
25K
15.53 mi13:12:512:09:488:2220:49
8:36
#18881
30K
18.64 mi13:40:212:37:188:2727:30
8:52
#18825
20M
20.00 mi13:52:402:49:378:2912:19
9:05
#18856
21M
21.00 mi14:02:422:59:398:3410:02
10:02
#19004
35K
21.75 mi14:09:113:06:088:346:29
8:40
#18962
23M
23.00 mi14:20:413:17:388:3611:30
9:12
#18975
24M
24.00 mi14:29:183:26:158:368:37
8:37
#18911
40K
24.85 mi14:37:283:34:258:388:10
9:34
#19004
25.2M
25.20 mi14:40:533:37:508:393:25
9:55
#19005
FINISH
26.22 mi14:49:503:46:478:408:57
8:47
#19025
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 mi199567603760318956(Top 65%)7018(Top 56%)7018(Top 569%)
10K6.21 mi3.10 mi19558+3987382+2217382+22119183(Top 66%)7125(Top 57%)7125(Top 578%)
15K9.32 mi3.11 mi19334+2247238+1447238+14418956(Top 65%)7018(Top 56%)7018(Top 569%)
20K12.43 mi3.11 mi18929+4057020+2187020+21817765(Top 61%)6377(Top 51%)6377(Top 517%)
HALF13.11 mi0.68 mi18866+636984+366984+3617658(Top 61%)6305(Top 50%)6305(Top 511%)
25K15.53 mi2.42 mi18881-157005-217005-2119097(Top 66%)7172(Top 57%)7172(Top 582%)
30K18.64 mi3.11 mi18825+567009-47009-418855(Top 65%)7134(Top 57%)7134(Top 579%)
20M20.00 mi1.36 mi18856-317038-297038-2919272(Top 66%)7420(Top 59%)7420(Top 602%)
21M21.00 mi1.00 mi19004-1487137-997137-9920546(Top 71%)8129(Top 65%)8129(Top 659%)
35K21.75 mi0.75 mi18962+427134+37134+318497(Top 64%)7160(Top 57%)7160(Top 581%)
23M23.00 mi1.25 mi18975-137152-187152-1819389(Top 67%)7670(Top 61%)7670(Top 622%)
24M24.00 mi1.00 mi18911+647139+137139+1317602(Top 61%)6791(Top 54%)6791(Top 551%)
40K24.85 mi0.85 mi19004-937210-717210-7120578(Top 71%)8356(Top 66%)8356(Top 678%)
25.2M25.20 mi0.35 mi19005-17225-157225-1519082(Top 66%)7605(Top 60%)7605(Top 617%)
FINISH26.22 mi1.02 mi19025-207245-207245-2019579(Top 67%)7861(Top 62%)7861(Top 638%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21
+97ft-345ft

Overall

18956

Females

7018

F50-54

7018

5K→10K

3.1 - 6.2 mi

Top 66%
×5
+79ft-138ft

Overall

19183

Females

7125

F50-54

7125

10K→15K

6.2 - 9.3 mi

Top 65%
×3
+67ft-78ft

Overall

18956

Females

7018

F50-54

7018

15K→20K

9.3 - 12.4 mi

Top 61%
×5
+106ft-86ft

Overall

17765

Females

6377

F50-54

6377

20K→HALF

12.4 - 13.1 mi

Top 61%
×2
+19ft-37ft

Overall

17658

Females

6305

F50-54

6305

HALF→25K

13.1 - 15.5 mi

Top 66%
×4
+66ft-88ft

Overall

19097

Females

7172

F50-54

7172

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

18855

Females

7134

F50-54

7134

30K→20M

18.6 - 20.0 mi

Top 66%
×5
+64ft-50ft

Overall

19272

Females

7420

F50-54

7420

20M→21M

20.0 - 21.0 mi

Top 71%
×8
+106ft-24ft

Overall

20546

Females

8129

F50-54

8129

21M→35K

21.0 - 21.8 mi

Top 64%
×7
+17ft-86ft

Overall

18497

Females

7160

F50-54

7160

35K→23M

21.8 - 23.0 mi

Top 67%
×5
+23ft-63ft

Overall

19389

Females

7670

F50-54

7670

23M→24M

23.0 - 24.0 mi

Top 61%
×6
+12ft-82ft

Overall

17602

Females

6791

F50-54

6791

24M→40K

24.0 - 24.9 mi

Top 71%
×1
+6ft-20ft

Overall

20578

Females

8356

F50-54

8356

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1
+13ft-16ft

Overall

19082

Females

7605

F50-54

7605

25.2M→FINISH

25.2 - 26.2 mi

Top 67%
×2
+22ft-21ft

Overall

19579

Females

7861

F50-54

7861

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2172*
Passed By
1241
Net Change
+931
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19956
5K → 10K522*124+398#19956#19558
10K → 15K313*89+224#19558#19334
15K → 20K421*16+405#19334#18929
20K → HALF7714+63#18929#18866
HALF → 25K124139-15#18866#18881
25K → 30K212*156+56#18881#18825
30K → 20M80111-31#18825#18856
20M → 21M47195-148#18856#19004
21M → 35K7634+42#19004#18962
35K → 23M7689-13#18962#18975
23M → 24M9834+64#18975#18911
24M → 40K33126-93#18911#19004
40K → 25.2M3637-1#19004#19005
25.2M → FINISH5777-20#19005#19025
TOTALS2172*1241+931

* 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