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BOSTON MARATHON 2026

Lan Feng

Bib: 24478•F

MD

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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 (F55-59)
#0 / 951
Top 36%
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
26:57
3.11 mi
Rank: #21062
Start → 5K
26:57 | 8:41/mi
10K
53:51
6.21 mi
Rank: #21139 (-77)
5K → 10K
26:54 | 8:40/mi
15K
1:20:20
9.32 mi
Rank: #20853 (+286)
10K → 15K
26:29 | 8:32/mi
20K
1:47:11
12.43 mi
Rank: #20645 (+208)
15K → 20K
26:51 | 8:39/mi
HALF
1:52:58
13.11 mi
Rank: #20616 (+29)
20K → HALF
5:47 | 8:30/mi
25K
2:14:13
15.53 mi
Rank: #20512 (+104)
HALF → 25K
21:15 | 8:46/mi
30K
2:41:59
18.64 mi
Rank: #20268 (+244)
25K → 30K
27:46 | 8:57/mi
20M
2:54:26
20.00 mi
Rank: #20227 (+41)
30K → 20M
12:27 | 9:10/mi
21M
3:04:00
21.00 mi
Rank: #20152 (+75)
20M → 21M
9:34 | 9:34/mi
35K
3:10:30
21.75 mi
Rank: #20100 (+52)
21M → 35K
6:30 | 8:42/mi
23M
3:21:48
23.00 mi
Rank: #20012 (+88)
35K → 23M
11:18 | 9:02/mi
24M
3:30:34
24.00 mi
Rank: #19930 (+82)
23M → 24M
8:46 | 8:46/mi
40K
3:38:28
24.85 mi
Rank: #19918 (+12)
24M → 40K
7:54 | 9:15/mi
25.2M
3:41:52
25.20 mi
Rank: #19899 (+19)
40K → 25.2M
3:24 | 9:52/mi
FINISH
3:50:34
26.22 mi
Rank: #19842 (+57)
25.2M → FINISH
8:42 | 8:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:58
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time1:57:36
Pace8:59 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:5726:578:4126:57
8:41
-
10K
6.21 mi11:57:5153:518:4026:54
8:40
-0:01
15K
9.32 mi12:24:201:20:208:3826:29
8:32
-0:08
20K
12.43 mi12:51:111:47:118:3826:51
8:39
+0:07
HALF
13.11 mi12:56:581:52:588:385:47
8:30
-0:09
25K
15.53 mi13:18:132:14:138:3921:15
8:46
+0:16
30K
18.64 mi13:45:592:41:598:4227:46
8:57
+0:11
20M
20.00 mi13:58:262:54:268:4412:27
9:10
+0:13
21M
21.00 mi14:08:003:04:008:469:34
9:34
+0:24
35K
21.75 mi14:14:303:10:308:466:30
8:42
-0:52
23M
23.00 mi14:25:483:21:488:4711:18
9:02
+0:20
24M
24.00 mi14:34:343:30:348:478:46
8:46
-0:16
40K
24.85 mi14:42:283:38:288:487:54
9:15
+0:29
25.2M
25.20 mi14:45:523:41:528:493:24
9:52
+0:37
FINISH
26.22 mi14:54:343:50:348:498:42
8:33
-1:19

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

8:30 /mi

Average Pace

8:48 /mi

Slowest Pace

9:52 /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

3:37:36

94% of race

Time at Steady Pace

12:58

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi11:30:5726:578:4126:57
8:41
#21062
10K
6.21 mi11:57:5153:518:4026:54
8:40
#21139
15K
9.32 mi12:24:201:20:208:3826:29
8:32
#20853
20K
12.43 mi12:51:111:47:118:3826:51
8:39
#20645
HALF
13.11 mi12:56:581:52:588:385:47
8:30
#20616
25K
15.53 mi13:18:132:14:138:3921:15
8:46
#20512
30K
18.64 mi13:45:592:41:598:4227:46
8:57
#20268
20M
20.00 mi13:58:262:54:268:4412:27
9:10
#20227
21M
21.00 mi14:08:003:04:008:469:34
9:34
#20152
35K
21.75 mi14:14:303:10:308:466:30
8:42
#20100
23M
23.00 mi14:25:483:21:488:4711:18
9:02
#20012
24M
24.00 mi14:34:343:30:348:478:46
8:46
#19930
40K
24.85 mi14:42:283:38:288:487:54
9:15
#19918
25.2M
25.20 mi14:45:523:41:528:493:24
9:52
#19899
FINISH
26.22 mi14:54:343:50:348:498:42
8:33
#19842
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi210628206820620302(Top 70%)7748(Top 62%)7748(Top 815%)
10K6.21 mi3.10 mi21139-778218-128218-1221217(Top 73%)8242(Top 66%)8242(Top 867%)
15K9.32 mi3.11 mi20853+2868057+1618057+16120302(Top 70%)7748(Top 62%)7748(Top 815%)
20K12.43 mi3.11 mi20645+2087970+877970+8720129(Top 69%)7698(Top 61%)7698(Top 809%)
HALF13.11 mi0.68 mi20616+297949+217949+2120199(Top 70%)7690(Top 61%)7690(Top 809%)
25K15.53 mi2.42 mi20512+1047908+417908+4120040(Top 69%)7677(Top 61%)7677(Top 807%)
30K18.64 mi3.11 mi20268+2447796+1127796+11219289(Top 66%)7374(Top 59%)7374(Top 775%)
20M20.00 mi1.36 mi20227+417792+47792+419732(Top 68%)7676(Top 61%)7676(Top 807%)
21M21.00 mi1.00 mi20152+757756+367756+3618825(Top 65%)7237(Top 58%)7237(Top 761%)
35K21.75 mi0.75 mi20100+527735+217735+2118606(Top 64%)7221(Top 57%)7221(Top 759%)
23M23.00 mi1.25 mi20012+887718+177718+1718647(Top 64%)7301(Top 58%)7301(Top 768%)
24M24.00 mi1.00 mi19930+827699+197699+1918389(Top 63%)7192(Top 57%)7192(Top 756%)
40K24.85 mi0.85 mi19918+127706-77706-719449(Top 67%)7808(Top 62%)7808(Top 821%)
25.2M25.20 mi0.35 mi19899+197699+77699+718918(Top 65%)7519(Top 60%)7519(Top 791%)
FINISH26.22 mi1.02 mi19842+577678+217678+2118372(Top 63%)7243(Top 58%)7243(Top 762%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21
+97ft-345ft

Overall

20302

Females

7748

F55-59

7748

5K→10K

3.1 - 6.2 mi

Top 73%
×5
+79ft-138ft

Overall

21217

Females

8242

F55-59

8242

10K→15K

6.2 - 9.3 mi

Top 70%
×3
+67ft-78ft

Overall

20302

Females

7748

F55-59

7748

15K→20K

9.3 - 12.4 mi

Top 69%
×5
+106ft-86ft

Overall

20129

Females

7698

F55-59

7698

20K→HALF

12.4 - 13.1 mi

Top 70%
×2
+19ft-37ft

Overall

20199

Females

7690

F55-59

7690

HALF→25K

13.1 - 15.5 mi

Top 69%
×4
+66ft-88ft

Overall

20040

Females

7677

F55-59

7677

25K→30K

15.5 - 18.6 mi

Top 66%
×9
+181ft-148ft

Overall

19289

Females

7374

F55-59

7374

30K→20M

18.6 - 20.0 mi

Top 68%
×5
+64ft-50ft

Overall

19732

Females

7676

F55-59

7676

20M→21M

20.0 - 21.0 mi

Top 65%
×8
+106ft-24ft

Overall

18825

Females

7237

F55-59

7237

21M→35K

21.0 - 21.8 mi

Top 64%
×7
+17ft-86ft

Overall

18606

Females

7221

F55-59

7221

35K→23M

21.8 - 23.0 mi

Top 64%
×5
+23ft-63ft

Overall

18647

Females

7301

F55-59

7301

23M→24M

23.0 - 24.0 mi

Top 63%
×6
+12ft-82ft

Overall

18389

Females

7192

F55-59

7192

24M→40K

24.0 - 24.9 mi

Top 67%
×1
+6ft-20ft

Overall

19449

Females

7808

F55-59

7808

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1
+13ft-16ft

Overall

18918

Females

7519

F55-59

7519

25.2M→FINISH

25.2 - 26.2 mi

Top 63%
×2
+22ft-21ft

Overall

18372

Females

7243

F55-59

7243

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2117
Passed By
897
Net Change
+1220
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21062
5K → 10K240317-77#21062#21139
10K → 15K36882+286#21139#20853
15K → 20K27163+208#20853#20645
20K → HALF4314+29#20645#20616
HALF → 25K18480+104#20616#20512
25K → 30K31268+244#20512#20268
30K → 20M9958+41#20268#20227
20M → 21M11439+75#20227#20152
21M → 35K7220+52#20152#20100
35K → 23M13244+88#20100#20012
23M → 24M10321+82#20012#19930
24M → 40K6351+12#19930#19918
40K → 25.2M3415+19#19918#19899
25.2M → FINISH8225+57#19899#19842
TOTALS2117897+1220
📊

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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing