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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Lili Guo

Bib: 19087 •F •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 40%
Age Group (F50-54)
#0 / 1233
Top 35%
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
25:21
3.11 mi
Rank: #17979
Start → 5K
25:21 | 8:10/mi
10K
51:15
6.21 mi
Rank: #18702 (-723)
5K → 10K
25:54 | 8:21/mi
15K
1:17:19
9.32 mi
Rank: #18991 (-289)
10K → 15K
26:04 | 8:24/mi
20K
1:43:24
12.43 mi
Rank: #18889 (+102)
15K → 20K
26:05 | 8:24/mi
HALF
1:48:59
13.11 mi
Rank: #18861 (+28)
20K → HALF
5:35 | 8:12/mi
25K
2:09:13
15.53 mi
Rank: #18637 (+224)
HALF → 25K
20:14 | 8:21/mi
30K
2:35:31
18.64 mi
Rank: #18289 (+348)
25K → 30K
26:18 | 8:28/mi
20M
2:47:13
20.00 mi
Rank: #18164 (+125)
30K → 20M
11:42 | 8:37/mi
21M
2:56:27
21.00 mi
Rank: #18086 (+78)
20M → 21M
9:14 | 9:14/mi
35K
3:02:37
21.75 mi
Rank: #18010 (+76)
21M → 35K
6:10 | 8:15/mi
23M
3:13:26
23.00 mi
Rank: #17889 (+121)
35K → 23M
10:49 | 8:39/mi
24M
3:21:39
24.00 mi
Rank: #17786 (+103)
23M → 24M
8:13 | 8:13/mi
40K
3:28:46
24.85 mi
Rank: #17638 (+148)
24M → 40K
7:07 | 8:20/mi
25.2M
3:31:58
25.20 mi
Rank: #17593 (+45)
40K → 25.2M
3:12 | 9:17/mi
FINISH
3:40:30
26.22 mi
Rank: #17594 (-1)
25.2M → FINISH
8:32 | 8:23/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
Time1:51:31
Pace8:31 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:08:1525:218:1025:21
8:10
-
10K
6.21 mi11:34:0951:158:1525:54
8:21
+0:11
15K
9.32 mi12:00:131:17:198:1826:04
8:24
+0:03
20K
12.43 mi12:26:181:43:248:2026:05
8:24
0:00
HALF
13.11 mi12:31:531:48:598:195:35
8:12
-0:12
25K
15.53 mi12:52:072:09:138:2020:14
8:21
+0:09
30K
18.64 mi13:18:252:35:318:2126:18
8:28
+0:07
20M
20.00 mi13:30:072:47:138:2211:42
8:37
+0:09
21M
21.00 mi13:39:212:56:278:259:14
9:14
+0:37
35K
21.75 mi13:45:313:02:378:246:10
8:15
-0:59
23M
23.00 mi13:56:203:13:268:2510:49
8:39
+0:24
24M
24.00 mi14:04:333:21:398:258:13
8:13
-0:26
40K
24.85 mi14:11:403:28:468:247:07
8:20
+0:07
25.2M
25.20 mi14:14:523:31:588:253:12
9:17
+0:57
FINISH
26.22 mi14:23:243:40:308:258:32
8:23
-0:54

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

8:10 /mi

Average Pace

8:25 /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

3:28:04

94% of race

Time at Steady Pace

12:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi11:08:1525:218:1025:21
8:10
#17979
10K
6.21 mi11:34:0951:158:1525:54
8:21
#18702
15K
9.32 mi12:00:131:17:198:1826:04
8:24
#18991
20K
12.43 mi12:26:181:43:248:2026:05
8:24
#18889
HALF
13.11 mi12:31:531:48:598:195:35
8:12
#18861
25K
15.53 mi12:52:072:09:138:2020:14
8:21
#18637
30K
18.64 mi13:18:252:35:318:2126:18
8:28
#18289
20M
20.00 mi13:30:072:47:138:2211:42
8:37
#18164
21M
21.00 mi13:39:212:56:278:259:14
9:14
#18086
35K
21.75 mi13:45:313:02:378:246:10
8:15
#18010
23M
23.00 mi13:56:203:13:268:2510:49
8:39
#17889
24M
24.00 mi14:04:333:21:398:258:13
8:13
#17786
40K
24.85 mi14:11:403:28:468:247:07
8:20
#17638
25.2M
25.20 mi14:14:523:31:588:253:12
9:17
#17593
FINISH
26.22 mi14:23:243:40:308:258:32
8:23
#17594
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 mi179796496649619511(Top 67%)7314(Top 58%)7314(Top 593%)
10K6.21 mi3.10 mi18702-7236890-3946890-39419410(Top 67%)7256(Top 58%)7256(Top 588%)
15K9.32 mi3.11 mi18991-2897047-1577047-15719511(Top 67%)7314(Top 58%)7314(Top 593%)
20K12.43 mi3.11 mi18889+1026995+526995+5218693(Top 64%)6904(Top 55%)6904(Top 560%)
HALF13.11 mi0.68 mi18861+286979+166979+1618385(Top 63%)6697(Top 53%)6697(Top 543%)
25K15.53 mi2.42 mi18637+2246860+1196860+11917665(Top 61%)6376(Top 51%)6376(Top 517%)
30K18.64 mi3.11 mi18289+3486700+1606700+16016710(Top 58%)5944(Top 47%)5944(Top 482%)
20M20.00 mi1.36 mi18164+1256656+446656+4416888(Top 58%)6138(Top 49%)6138(Top 498%)
21M21.00 mi1.00 mi18086+786634+226634+2217344(Top 60%)6445(Top 51%)6445(Top 523%)
35K21.75 mi0.75 mi18010+766599+356599+3516148(Top 56%)5847(Top 46%)5847(Top 474%)
23M23.00 mi1.25 mi17889+1216561+386561+3816586(Top 57%)6192(Top 49%)6192(Top 502%)
24M24.00 mi1.00 mi17786+1036512+496512+4915228(Top 52%)5471(Top 43%)5471(Top 444%)
40K24.85 mi0.85 mi17638+1486440+726440+7214652(Top 50%)5249(Top 42%)5249(Top 426%)
25.2M25.20 mi0.35 mi17593+456424+166424+1616293(Top 56%)6129(Top 49%)6129(Top 497%)
FINISH26.22 mi1.02 mi17594-16452-286452-2817486(Top 60%)6772(Top 54%)6772(Top 549%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21
+97ft-345ft

Overall

19511

Females

7314

F50-54

7314

5K→10K

3.1 - 6.2 mi

Top 67%
×5
+79ft-138ft

Overall

19410

Females

7256

F50-54

7256

10K→15K

6.2 - 9.3 mi

Top 67%
×3
+67ft-78ft

Overall

19511

Females

7314

F50-54

7314

15K→20K

9.3 - 12.4 mi

Top 64%
×5
+106ft-86ft

Overall

18693

Females

6904

F50-54

6904

20K→HALF

12.4 - 13.1 mi

Top 63%
×2
+19ft-37ft

Overall

18385

Females

6697

F50-54

6697

HALF→25K

13.1 - 15.5 mi

Top 61%
×4
+66ft-88ft

Overall

17665

Females

6376

F50-54

6376

25K→30K

15.5 - 18.6 mi

Top 58%
×9
+181ft-148ft

Overall

16710

Females

5944

F50-54

5944

30K→20M

18.6 - 20.0 mi

Top 58%
×5
+64ft-50ft

Overall

16888

Females

6138

F50-54

6138

20M→21M

20.0 - 21.0 mi

Top 60%
×8
+106ft-24ft

Overall

17344

Females

6445

F50-54

6445

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16148

Females

5847

F50-54

5847

35K→23M

21.8 - 23.0 mi

Top 57%
×5
+23ft-63ft

Overall

16586

Females

6192

F50-54

6192

23M→24M

23.0 - 24.0 mi

Top 52%
×6
+12ft-82ft

Overall

15228

Females

5471

F50-54

5471

24M→40K

24.0 - 24.9 mi

Top 50%
×1
+6ft-20ft

Overall

14652

Females

5249

F50-54

5249

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1
+13ft-16ft

Overall

16293

Females

6129

F50-54

6129

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
×2
+22ft-21ft

Overall

17486

Females

6772

F50-54

6772

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1983*
Passed By
834
Net Change
+385
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17979
5K → 10K72200-723#17979#18702
10K → 15K80200-289#18702#18991
15K → 20K202*100+102#18991#18889
20K → HALF5224+28#18889#18861
HALF → 25K256*32+224#18861#18637
25K → 30K374*26+348#18637#18289
30K → 20M16338+125#18289#18164
20M → 21M12345+78#18164#18086
21M → 35K859+76#18086#18010
35K → 23M16140+121#18010#17889
23M → 24M12623+103#17889#17786
24M → 40K16113+148#17786#17638
40K → 25.2M5813+45#17638#17593
25.2M → FINISH7071-1#17593#17594
TOTALS1983*834+385

* 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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