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BOSTON MARATHON 2025

Kueishu Li

Bib: 20982•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:19
Rank: #17745
Start → 5K
25:19 | 8:09/mi
10K· 6.21 mi
50:59
Rank: #18024 (-279)
5K → 10K
25:40 | 8:16/mi
15K· 9.32 mi
1:17:50
Rank: #18734 (-710)
10K → 15K
26:51 | 8:39/mi
20K· 12.43 mi
1:45:30
Rank: #19203 (-469)
15K → 20K
27:40 | 8:54/mi
Half· 13.11 mi
1:51:25
Rank: #19252 (-49)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:13:06
Rank: #19323 (-71)
Half → 25K
21:41 | 8:57/mi
30K· 18.64 mi
2:43:15
Rank: #19631 (-308)
25K → 30K
30:09 | 9:42/mi
20M
2:57:21
Rank: #19922 (-291)
30K → 20M
14:06 | 10:23/mi
21M
3:08:51
Rank: #20164 (-242)
20M → 21M
11:30 | 11:30/mi
35K· 21.75 mi
3:15:41
Rank: #20111 (+53)
21M → 35K
6:50 | 9:08/mi
23M
3:27:32
Rank: #20024 (+87)
35K → 23M
11:51 | 9:28/mi
24M
3:36:49
Rank: #19973 (+51)
23M → 24M
9:17 | 9:17/mi
40K· 24.85 mi
3:45:13
Rank: #19979 (-6)
24M → 40K
8:24 | 9:49/mi
25.2M
3:48:59
Rank: #19987 (-8)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
3:58:37
Rank: #20081 (-94)
25.2M → Finish
9:38 | 9:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:25
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time2:07:12
Pace9:42 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2125:198:0925:19
8:09
-
10K
6.21 mi11:44:0150:598:1225:40
8:16
+0:07
15K
9.32 mi12:10:521:17:508:2126:51
8:39
+0:23
20K
12.43 mi12:38:321:45:308:2927:40
8:54
+0:15
Half
13.11 mi12:44:271:51:258:305:55
8:40
-0:14
25K
15.53 mi13:06:082:13:068:3421:41
8:57
+0:17
30K
18.64 mi13:36:172:43:158:4530:09
9:42
+0:45
20M
20.00 mi13:50:232:57:218:5214:06
10:23
+0:41
21M
21.00 mi14:01:533:08:519:0011:30
11:30
+1:07
35K
21.75 mi14:08:433:15:419:006:50
9:08
-2:22
23M
23.00 mi14:20:343:27:329:0111:51
9:28
+0:20
24M
24.00 mi14:29:513:36:499:029:17
9:17
-0:11
40K
24.85 mi14:38:153:45:139:048:24
9:49
+0:32
25.2M
25.20 mi14:42:013:48:599:053:46
10:55
+1:06
Finish
26.22 mi14:51:393:58:379:069:38
9:27
-1:28

Checkpoints & Pacing

📈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

8:09 /mi

Average Pace

9:06 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:45

35% of race

Time at Steady Pace

1:57:06

49% of race

Time at Slower Pace

37:46

16% of race

Average Pace: 9:06 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:18:2125:198:0925:19
8:09
#17745
10K
6.21 mi11:44:0150:598:1225:40
8:16
#18024
15K
9.32 mi12:10:521:17:508:2126:51
8:39
#18734
20K
12.43 mi12:38:321:45:308:2927:40
8:54
#19203
Half
13.11 mi12:44:271:51:258:305:55
8:40
#19252
25K
15.53 mi13:06:082:13:068:3421:41
8:57
#19323
30K
18.64 mi13:36:172:43:158:4530:09
9:42
#19631
20M
20.00 mi13:50:232:57:218:5214:06
10:23
#19922
21M
21.00 mi14:01:533:08:519:0011:30
11:30
#20164
35K
21.75 mi14:08:433:15:419:006:50
9:08
#20111
23M
23.00 mi14:20:343:27:329:0111:51
9:28
#20024
24M
24.00 mi14:29:513:36:499:029:17
9:17
#19973
40K
24.85 mi14:38:153:45:139:048:24
9:49
#19979
25.2M
25.20 mi14:42:013:48:599:053:46
10:55
#19987
Finish
26.22 mi14:51:393:58:379:069:38
9:27
#20081
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi177456188618820184(Top 71%)7538(Top 62%)7538(Top 439%)
10K6.21 mi3.10 mi18024-2796344-1566344-15618325(Top 65%)6504(Top 53%)6504(Top 379%)
15K9.32 mi3.11 mi18734-7106755-4116755-41120184(Top 71%)7538(Top 62%)7538(Top 439%)
20K12.43 mi3.11 mi19203-4697023-2687023-26820509(Top 72%)7777(Top 64%)7777(Top 453%)
Half13.11 mi0.68 mi19252-497056-337056-3320249(Top 71%)7622(Top 62%)7622(Top 444%)
25K15.53 mi2.42 mi19323-717103-477103-4719669(Top 69%)7350(Top 60%)7350(Top 428%)
30K18.64 mi3.11 mi19631-3087317-2147317-21420709(Top 73%)8057(Top 66%)8057(Top 469%)
20M20.00 mi1.36 mi19922-2917500-1837500-18322085(Top 78%)8938(Top 73%)8938(Top 520%)
21M21.00 mi1.00 mi20164-2427675-1757675-17522612(Top 80%)9301(Top 76%)9301(Top 541%)
35K21.75 mi0.75 mi20111+537653+227653+2218916(Top 67%)7413(Top 61%)7413(Top 431%)
23M23.00 mi1.25 mi20024+877629+247629+2418545(Top 65%)7261(Top 59%)7261(Top 423%)
24M24.00 mi1.00 mi19973+517626+37626+318768(Top 66%)7425(Top 61%)7425(Top 432%)
40K24.85 mi0.85 mi19979-67649-237649-2319905(Top 70%)8101(Top 66%)8101(Top 472%)
25.2M25.20 mi0.35 mi19987-87658-97658-920413(Top 72%)8361(Top 68%)8361(Top 487%)
Finish26.22 mi1.02 mi20081-947722-647722-6421027(Top 74%)8669(Top 71%)8669(Top 505%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20184

Females

7538

F40-44

7538

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

18325

Females

6504

F40-44

6504

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20184

Females

7538

F40-44

7538

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

20509

Females

7777

F40-44

7777

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

20249

Females

7622

F40-44

7622

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19669

Females

7350

F40-44

7350

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20709

Females

8057

F40-44

8057

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

22085

Females

8938

F40-44

8938

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22612

Females

9301

F40-44

9301

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

18916

Females

7413

F40-44

7413

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18545

Females

7261

F40-44

7261

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

18768

Females

7425

F40-44

7425

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19905

Females

8101

F40-44

8101

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20413

Females

8361

F40-44

8361

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

21027

Females

8669

F40-44

8669

Passing Analysis

Category:
Athletes Passed
1092
Passed By
3428
Net Change
-2336
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17745
5K → 10K181460-279#17745#18024
10K → 15K40750-710#18024#18734
15K → 20K90559-469#18734#19203
20K → Half1968-49#19203#19252
Half → 25K150221-71#19252#19323
25K → 30K132440-308#19323#19631
30K → 20M38329-291#19631#19922
20M → 21M38280-242#19922#20164
21M → 35K7825+53#20164#20111
35K → 23M12134+87#20111#20024
23M → 24M8736+51#20024#19973
24M → 40K5965-6#19973#19979
40K → 25.2M2129-8#19979#19987
25.2M → Finish38132-94#19987#20081
TOTALS10923428-2336
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing