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BOSTON MARATHON 2026

Alicia Lau

Bib: 17903•F

BC

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 50%
Gender (Female)
#0 / 12578
Top 37%
Age Group (F18-39)
#0 / 5716
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
24:04
3.11 mi
Rank: #14978
Start → 5K
24:04 | 7:45/mi
10K
48:00
6.21 mi
Rank: #14845 (+133)
5K → 10K
23:56 | 7:43/mi
15K
1:11:50
9.32 mi
Rank: #14614 (+231)
10K → 15K
23:50 | 7:41/mi
20K
1:36:27
12.43 mi
Rank: #14834 (-220)
15K → 20K
24:37 | 7:56/mi
HALF
1:41:46
13.11 mi
Rank: #14862 (-28)
20K → HALF
5:19 | 7:48/mi
25K
2:01:06
15.53 mi
Rank: #14901 (-39)
HALF → 25K
19:20 | 7:59/mi
30K
2:26:21
18.64 mi
Rank: #14773 (+128)
25K → 30K
25:15 | 8:08/mi
20M
2:37:35
20.00 mi
Rank: #14749 (+24)
30K → 20M
11:14 | 8:17/mi
21M
2:46:09
21.00 mi
Rank: #14666 (+83)
20M → 21M
8:34 | 8:34/mi
35K
2:51:52
21.75 mi
Rank: #14520 (+146)
21M → 35K
5:43 | 7:39/mi
23M
3:01:55
23.00 mi
Rank: #14379 (+141)
35K → 23M
10:03 | 8:02/mi
24M
3:09:48
24.00 mi
Rank: #14317 (+62)
23M → 24M
7:53 | 7:53/mi
40K
3:16:55
24.85 mi
Rank: #14324 (-7)
24M → 40K
7:07 | 8:20/mi
25.2M
3:20:01
25.20 mi
Rank: #14341 (-17)
40K → 25.2M
3:06 | 9:00/mi
FINISH
3:28:21
26.22 mi
Rank: #14438 (-97)
25.2M → FINISH
8:20 | 8:11/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:46
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:46:35
Pace8:08 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:3624:047:4524:04
7:45
-
10K
6.21 mi11:31:3248:007:4423:56
7:43
-0:02
15K
9.32 mi11:55:221:11:507:4323:50
7:41
-0:02
20K
12.43 mi12:19:591:36:277:4624:37
7:56
+0:15
HALF
13.11 mi12:25:181:41:467:465:19
7:48
-0:08
25K
15.53 mi12:44:382:01:067:4819:20
7:59
+0:11
30K
18.64 mi13:09:532:26:217:5225:15
8:08
+0:09
20M
20.00 mi13:21:072:37:357:5311:14
8:17
+0:09
21M
21.00 mi13:29:412:46:097:558:34
8:34
+0:17
35K
21.75 mi13:35:242:51:527:555:43
7:39
-0:55
23M
23.00 mi13:45:273:01:557:5510:03
8:02
+0:23
24M
24.00 mi13:53:203:09:487:557:53
7:53
-0:09
40K
24.85 mi14:00:273:16:557:567:07
8:20
+0:27
25.2M
25.20 mi14:03:333:20:017:573:06
9:00
+0:40
FINISH
26.22 mi14:11:533:28:217:588:20
8:11
-0:49

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

7:39 /mi

Average Pace

7:57 /mi

Slowest Pace

9:00 /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

3:16:41

94% of race

Time at Steady Pace

11:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:57 /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 mi11:07:3624:047:4524:04
7:45
#14978
10K
6.21 mi11:31:3248:007:4423:56
7:43
#14845
15K
9.32 mi11:55:221:11:507:4323:50
7:41
#14614
20K
12.43 mi12:19:591:36:277:4624:37
7:56
#14834
HALF
13.11 mi12:25:181:41:467:465:19
7:48
#14862
25K
15.53 mi12:44:382:01:067:4819:20
7:59
#14901
30K
18.64 mi13:09:532:26:217:5225:15
8:08
#14773
20M
20.00 mi13:21:072:37:357:5311:14
8:17
#14749
21M
21.00 mi13:29:412:46:097:558:34
8:34
#14666
35K
21.75 mi13:35:242:51:527:555:43
7:39
#14520
23M
23.00 mi13:45:273:01:557:5510:03
8:02
#14379
24M
24.00 mi13:53:203:09:487:557:53
7:53
#14317
40K
24.85 mi14:00:273:16:557:567:07
8:20
#14324
25.2M
25.20 mi14:03:333:20:017:573:06
9:00
#14341
FINISH
26.22 mi14:11:533:28:217:588:20
8:11
#14438
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi149784669466914301(Top 49%)4319(Top 34%)4319(Top 76%)
10K6.21 mi3.10 mi14845+1334612+574612+5714794(Top 51%)4561(Top 36%)4561(Top 80%)
15K9.32 mi3.11 mi14614+2314494+1184494+11814301(Top 49%)4319(Top 34%)4319(Top 76%)
20K12.43 mi3.11 mi14834-2204643-1494643-14915527(Top 54%)5096(Top 41%)5096(Top 89%)
HALF13.11 mi0.68 mi14862-284660-174660-1715538(Top 54%)5038(Top 40%)5038(Top 88%)
25K15.53 mi2.42 mi14901-394682-224682-2215198(Top 52%)4963(Top 39%)4963(Top 87%)
30K18.64 mi3.11 mi14773+1284657+254657+2514412(Top 50%)4633(Top 37%)4633(Top 81%)
20M20.00 mi1.36 mi14749+244673-164673-1614731(Top 51%)4883(Top 39%)4883(Top 85%)
21M21.00 mi1.00 mi14666+834650+234650+2313565(Top 47%)4357(Top 35%)4357(Top 76%)
35K21.75 mi0.75 mi14520+1464577+734577+7311973(Top 41%)3525(Top 28%)3525(Top 62%)
23M23.00 mi1.25 mi14379+1414523+544523+5412698(Top 44%)3970(Top 32%)3970(Top 69%)
24M24.00 mi1.00 mi14317+624510+134510+1312945(Top 45%)4226(Top 34%)4226(Top 74%)
40K24.85 mi0.85 mi14324-74546-364546-3614617(Top 50%)5214(Top 41%)5214(Top 91%)
25.2M25.20 mi0.35 mi14341-174565-194565-1914680(Top 51%)5249(Top 42%)5249(Top 92%)
FINISH26.22 mi1.02 mi14438-974634-694634-6916295(Top 56%)6103(Top 49%)6103(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21
+97ft-345ft

Overall

14301

Females

4319

F18-39

4319

5K→10K

3.1 - 6.2 mi

Top 51%
×5
+79ft-138ft

Overall

14794

Females

4561

F18-39

4561

10K→15K

6.2 - 9.3 mi

Top 49%
×3
+67ft-78ft

Overall

14301

Females

4319

F18-39

4319

15K→20K

9.3 - 12.4 mi

Top 54%
×5
+106ft-86ft

Overall

15527

Females

5096

F18-39

5096

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15538

Females

5038

F18-39

5038

HALF→25K

13.1 - 15.5 mi

Top 52%
×4
+66ft-88ft

Overall

15198

Females

4963

F18-39

4963

25K→30K

15.5 - 18.6 mi

Top 50%
×9
+181ft-148ft

Overall

14412

Females

4633

F18-39

4633

30K→20M

18.6 - 20.0 mi

Top 51%
×5
+64ft-50ft

Overall

14731

Females

4883

F18-39

4883

20M→21M

20.0 - 21.0 mi

Top 47%
×8
+106ft-24ft

Overall

13565

Females

4357

F18-39

4357

21M→35K

21.0 - 21.8 mi

Top 41%
×7
+17ft-86ft

Overall

11973

Females

3525

F18-39

3525

35K→23M

21.8 - 23.0 mi

Top 44%
×5
+23ft-63ft

Overall

12698

Females

3970

F18-39

3970

23M→24M

23.0 - 24.0 mi

Top 45%
×6
+12ft-82ft

Overall

12945

Females

4226

F18-39

4226

24M→40K

24.0 - 24.9 mi

Top 50%
×1
+6ft-20ft

Overall

14617

Females

5214

F18-39

5214

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1
+13ft-16ft

Overall

14680

Females

5249

F18-39

5249

25.2M→FINISH

25.2 - 26.2 mi

Top 56%
×2
+22ft-21ft

Overall

16295

Females

6103

F18-39

6103

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2017
Passed By
1477
Net Change
+540
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14978
5K → 10K380247+133#14978#14845
10K → 15K33099+231#14845#14614
15K → 20K103323-220#14614#14834
20K → HALF2149-28#14834#14862
HALF → 25K126165-39#14862#14901
25K → 30K250122+128#14901#14773
30K → 20M11490+24#14773#14749
20M → 21M13754+83#14749#14666
21M → 35K1515+146#14666#14520
35K → 23M16726+141#14520#14379
23M → 24M10139+62#14379#14317
24M → 40K7380-7#14317#14324
40K → 25.2M2441-17#14324#14341
25.2M → FINISH40137-97#14341#14438
TOTALS20171477+540
📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing