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BOSTON MARATHON 2026

Nancy Lan

Bib: 22588•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
Top 44%
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
25:09
3.11 mi
Rank: #17594
Start → 5K
25:09 | 8:06/mi
10K
50:23
6.21 mi
Rank: #17826 (-232)
5K → 10K
25:14 | 8:08/mi
15K
1:16:17
9.32 mi
Rank: #18296 (-470)
10K → 15K
25:54 | 8:21/mi
20K
1:42:39
12.43 mi
Rank: #18527 (-231)
15K → 20K
26:22 | 8:30/mi
HALF
1:48:11
13.11 mi
Rank: #18494 (+33)
20K → HALF
5:32 | 8:08/mi
25K
2:09:15
15.53 mi
Rank: #18652 (-158)
HALF → 25K
21:04 | 8:42/mi
30K
2:36:19
18.64 mi
Rank: #18526 (+126)
25K → 30K
27:04 | 8:43/mi
20M
2:48:27
20.00 mi
Rank: #18527 (-1)
30K → 20M
12:08 | 8:56/mi
21M
2:57:36
21.00 mi
Rank: #18411 (+116)
20M → 21M
9:09 | 9:09/mi
35K
3:03:58
21.75 mi
Rank: #18384 (+27)
21M → 35K
6:22 | 8:31/mi
23M
3:15:21
23.00 mi
Rank: #18407 (-23)
35K → 23M
11:23 | 9:06/mi
24M
3:24:00
24.00 mi
Rank: #18372 (+35)
23M → 24M
8:39 | 8:39/mi
40K
3:31:34
24.85 mi
Rank: #18337 (+35)
24M → 40K
7:34 | 8:51/mi
25.2M
3:34:46
25.20 mi
Rank: #18301 (+36)
40K → 25.2M
3:12 | 9:17/mi
FINISH
3:43:14
26.22 mi
Rank: #18238 (+63)
25.2M → FINISH
8:28 | 8:19/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:48:11
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:55:03
Pace8:47 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5325:098:0625:09
8:06
-
10K
6.21 mi11:52:0750:238:0725:14
8:08
+0:02
15K
9.32 mi12:18:011:16:178:1225:54
8:21
+0:13
20K
12.43 mi12:44:231:42:398:1626:22
8:30
+0:09
HALF
13.11 mi12:49:551:48:118:165:32
8:08
-0:22
25K
15.53 mi13:10:592:09:158:2021:04
8:42
+0:34
30K
18.64 mi13:38:032:36:198:2427:04
8:43
+0:01
20M
20.00 mi13:50:112:48:278:2612:08
8:56
+0:13
21M
21.00 mi13:59:202:57:368:289:09
9:09
+0:13
35K
21.75 mi14:05:423:03:588:286:22
8:31
-0:38
23M
23.00 mi14:17:053:15:218:3011:23
9:06
+0:35
24M
24.00 mi14:25:443:24:008:318:39
8:39
-0:27
40K
24.85 mi14:33:183:31:348:317:34
8:51
+0:12
25.2M
25.20 mi14:36:303:34:468:323:12
9:17
+0:26
FINISH
26.22 mi14:44:583:43:148:328:28
8:19
-0:58

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

8:06 /mi

Average Pace

8:31 /mi

Slowest Pace

9:17 /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

3:07:22

84% of race

Time at Steady Pace

35:52

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:31 /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 mi11:26:5325:098:0625:09
8:06
#17594
10K
6.21 mi11:52:0750:238:0725:14
8:08
#17826
15K
9.32 mi12:18:011:16:178:1225:54
8:21
#18296
20K
12.43 mi12:44:231:42:398:1626:22
8:30
#18527
HALF
13.11 mi12:49:551:48:118:165:32
8:08
#18494
25K
15.53 mi13:10:592:09:158:2021:04
8:42
#18652
30K
18.64 mi13:38:032:36:198:2427:04
8:43
#18526
20M
20.00 mi13:50:112:48:278:2612:08
8:56
#18527
21M
21.00 mi13:59:202:57:368:289:09
9:09
#18411
35K
21.75 mi14:05:423:03:588:286:22
8:31
#18384
23M
23.00 mi14:17:053:15:218:3011:23
9:06
#18407
24M
24.00 mi14:25:443:24:008:318:39
8:39
#18372
40K
24.85 mi14:33:183:31:348:317:34
8:51
#18337
25.2M
25.20 mi14:36:303:34:468:323:12
9:17
#18301
FINISH
26.22 mi14:44:583:43:148:328:28
8:19
#18238
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 mi175946269626919205(Top 66%)7152(Top 57%)7152(Top 400%)
10K6.21 mi3.10 mi17826-2326390-1216390-12118129(Top 62%)6553(Top 52%)6553(Top 367%)
15K9.32 mi3.11 mi18296-4706653-2636653-26319205(Top 66%)7152(Top 57%)7152(Top 400%)
20K12.43 mi3.11 mi18527-2316783-1306783-13019232(Top 66%)7199(Top 57%)7199(Top 403%)
HALF13.11 mi0.68 mi18494+336766+176766+1717962(Top 62%)6452(Top 51%)6452(Top 361%)
25K15.53 mi2.42 mi18652-1586870-1046870-10419638(Top 68%)7459(Top 59%)7459(Top 418%)
30K18.64 mi3.11 mi18526+1266846+246846+2418093(Top 62%)6726(Top 53%)6726(Top 377%)
20M20.00 mi1.36 mi18527-16854-86854-818624(Top 64%)7087(Top 56%)7087(Top 397%)
21M21.00 mi1.00 mi18411+1166808+466808+4616939(Top 58%)6217(Top 49%)6217(Top 348%)
35K21.75 mi0.75 mi18384+276806+26806+217672(Top 61%)6721(Top 53%)6721(Top 376%)
23M23.00 mi1.25 mi18407-236831-256831-2518967(Top 65%)7450(Top 59%)7450(Top 417%)
24M24.00 mi1.00 mi18372+356834-36834-317777(Top 61%)6877(Top 55%)6877(Top 385%)
40K24.85 mi0.85 mi18337+356830+46830+417670(Top 61%)6867(Top 55%)6867(Top 384%)
25.2M25.20 mi0.35 mi18301+366820+106820+1016314(Top 56%)6150(Top 49%)6150(Top 344%)
FINISH26.22 mi1.02 mi18238+636801+196801+1917125(Top 59%)6589(Top 52%)6589(Top 369%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19205

Females

7152

F45-49

7152

5K→10K

3.1 - 6.2 mi

Top 62%
×5
+79ft-138ft

Overall

18129

Females

6553

F45-49

6553

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19205

Females

7152

F45-49

7152

15K→20K

9.3 - 12.4 mi

Top 66%
×5
+106ft-86ft

Overall

19232

Females

7199

F45-49

7199

20K→HALF

12.4 - 13.1 mi

Top 62%
×2
+19ft-37ft

Overall

17962

Females

6452

F45-49

6452

HALF→25K

13.1 - 15.5 mi

Top 68%
×4
+66ft-88ft

Overall

19638

Females

7459

F45-49

7459

25K→30K

15.5 - 18.6 mi

Top 62%
×9
+181ft-148ft

Overall

18093

Females

6726

F45-49

6726

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18624

Females

7087

F45-49

7087

20M→21M

20.0 - 21.0 mi

Top 58%
×8
+106ft-24ft

Overall

16939

Females

6217

F45-49

6217

21M→35K

21.0 - 21.8 mi

Top 61%
×7
+17ft-86ft

Overall

17672

Females

6721

F45-49

6721

35K→23M

21.8 - 23.0 mi

Top 65%
×5
+23ft-63ft

Overall

18967

Females

7450

F45-49

7450

23M→24M

23.0 - 24.0 mi

Top 61%
×6
+12ft-82ft

Overall

17777

Females

6877

F45-49

6877

24M→40K

24.0 - 24.9 mi

Top 61%
×1
+6ft-20ft

Overall

17670

Females

6867

F45-49

6867

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1
+13ft-16ft

Overall

16314

Females

6150

F45-49

6150

25.2M→FINISH

25.2 - 26.2 mi

Top 59%
×2
+22ft-21ft

Overall

17125

Females

6589

F45-49

6589

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1381*
Passed By
1315
Net Change
-644
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17594
5K → 10K168200-232#17594#17826
10K → 15K62200-470#17826#18296
15K → 20K98200-231#18296#18527
20K → HALF4411+33#18527#18494
HALF → 25K91200-158#18494#18652
25K → 30K228*102+126#18652#18526
30K → 20M9394-1#18526#18527
20M → 21M14630+116#18527#18411
21M → 35K6437+27#18411#18384
35K → 23M77100-23#18384#18407
23M → 24M8853+35#18407#18372
24M → 40K7742+35#18372#18337
40K → 25.2M4711+36#18337#18301
25.2M → FINISH9835+63#18301#18238
TOTALS1381*1315-644

* 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