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BOSTON MARATHON 2025

Bo Yu

Bib: 22649•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 46%
Division (F55-59)
#0 / 994
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:17
Rank: #14978
Start → 5K
24:17 | 7:49/mi
10K· 6.21 mi
49:32
Rank: #16284 (-1306)
5K → 10K
25:15 | 8:08/mi
15K· 9.32 mi
1:16:05
Rank: #17515 (-1231)
10K → 15K
26:33 | 8:33/mi
20K· 12.43 mi
1:43:01
Rank: #17940 (-425)
15K → 20K
26:56 | 8:40/mi
Half· 13.11 mi
1:48:59
Rank: #18059 (-119)
20K → Half
5:58 | 8:45/mi
25K· 15.53 mi
2:10:35
Rank: #18309 (-250)
Half → 25K
21:36 | 8:55/mi
30K· 18.64 mi
2:39:47
Rank: #18586 (-277)
25K → 30K
29:12 | 9:24/mi
20M
2:52:35
Rank: #18593 (-7)
30K → 20M
12:48 | 9:25/mi
21M
3:02:20
Rank: #18508 (+85)
20M → 21M
9:45 | 9:45/mi
35K· 21.75 mi
3:08:55
Rank: #18461 (+47)
21M → 35K
6:35 | 8:48/mi
23M
3:20:28
Rank: #18372 (+89)
35K → 23M
11:33 | 9:13/mi
24M
3:29:28
Rank: #18308 (+64)
23M → 24M
9:00 | 9:00/mi
40K· 24.85 mi
3:37:25
Rank: #18303 (+5)
24M → 40K
7:57 | 9:18/mi
25.2M
3:40:59
Rank: #18309 (-6)
40K → 25.2M
3:34 | 10:21/mi
Finish· 26.22 mi
3:50:10
Rank: #18350 (-41)
25.2M → Finish
9:11 | 9:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:59
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time2:01:11
Pace9:15 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1824:177:4924:17
7:49
-
10K
6.21 mi11:45:3349:327:5825:15
8:08
+0:19
15K
9.32 mi12:12:061:16:058:1026:33
8:33
+0:25
20K
12.43 mi12:39:021:43:018:1726:56
8:40
+0:07
Half
13.11 mi12:45:001:48:598:195:58
8:45
+0:05
25K
15.53 mi13:06:362:10:358:2421:36
8:55
+0:10
30K
18.64 mi13:35:482:39:478:3429:12
9:24
+0:29
20M
20.00 mi13:48:362:52:358:3812:48
9:25
+0:01
21M
21.00 mi13:58:213:02:208:419:45
9:45
+0:20
35K
21.75 mi14:04:563:08:558:416:35
8:48
-0:57
23M
23.00 mi14:16:293:20:288:4311:33
9:13
+0:25
24M
24.00 mi14:25:293:29:288:449:00
9:00
-0:13
40K
24.85 mi14:33:263:37:258:457:57
9:18
+0:18
25.2M
25.20 mi14:37:003:40:598:463:34
10:21
+1:03
Finish
26.22 mi14:46:113:50:108:479:11
9:01
-1:20

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

7:49 /mi

Average Pace

8:47 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:01

45% of race

Time at Steady Pace

1:11:50

31% of race

Time at Slower Pace

55:19

24% of race

Average Pace: 8:47 /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 mi11:20:1824:177:4924:17
7:49
#14978
10K
6.21 mi11:45:3349:327:5825:15
8:08
#16284
15K
9.32 mi12:12:061:16:058:1026:33
8:33
#17515
20K
12.43 mi12:39:021:43:018:1726:56
8:40
#17940
Half
13.11 mi12:45:001:48:598:195:58
8:45
#18059
25K
15.53 mi13:06:362:10:358:2421:36
8:55
#18309
30K
18.64 mi13:35:482:39:478:3429:12
9:24
#18586
20M
20.00 mi13:48:362:52:358:3812:48
9:25
#18593
21M
21.00 mi13:58:213:02:208:419:45
9:45
#18508
35K
21.75 mi14:04:563:08:558:416:35
8:48
#18461
23M
23.00 mi14:16:293:20:288:4311:33
9:13
#18372
24M
24.00 mi14:25:293:29:288:449:00
9:00
#18308
40K
24.85 mi14:33:263:37:258:457:57
9:18
#18303
25.2M
25.20 mi14:37:003:40:598:463:34
10:21
#18309
Finish
26.22 mi14:46:113:50:108:479:11
9:01
#18350
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi149784519451919612(Top 69%)7225(Top 59%)7225(Top 727%)
10K6.21 mi3.10 mi16284-13065318-7995318-79917413(Top 61%)5948(Top 49%)5948(Top 598%)
15K9.32 mi3.11 mi17515-12316023-7056023-70519612(Top 69%)7225(Top 59%)7225(Top 727%)
20K12.43 mi3.11 mi17940-4256302-2796302-27919261(Top 68%)7057(Top 58%)7057(Top 710%)
Half13.11 mi0.68 mi18059-1196374-726374-7220637(Top 73%)7822(Top 64%)7822(Top 787%)
25K15.53 mi2.42 mi18309-2506532-1586532-15819474(Top 69%)7240(Top 59%)7240(Top 728%)
30K18.64 mi3.11 mi18586-2776709-1776709-17719531(Top 69%)7409(Top 61%)7409(Top 745%)
20M20.00 mi1.36 mi18593-76738-296738-2918836(Top 66%)7176(Top 59%)7176(Top 722%)
21M21.00 mi1.00 mi18508+856727+116727+1117281(Top 61%)6421(Top 53%)6421(Top 646%)
35K21.75 mi0.75 mi18461+476714+136714+1317282(Top 61%)6517(Top 53%)6517(Top 656%)
23M23.00 mi1.25 mi18372+896688+266688+2617466(Top 61%)6704(Top 55%)6704(Top 674%)
24M24.00 mi1.00 mi18308+646689-16689-117392(Top 61%)6705(Top 55%)6705(Top 675%)
40K24.85 mi0.85 mi18303+56712-236712-2317867(Top 63%)7066(Top 58%)7066(Top 711%)
25.2M25.20 mi0.35 mi18309-66731-196731-1918477(Top 65%)7366(Top 60%)7366(Top 741%)
Finish26.22 mi1.02 mi18350-416773-426773-4219127(Top 67%)7677(Top 63%)7677(Top 772%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19612

Females

7225

F55-59

7225

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

17413

Females

5948

F55-59

5948

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19612

Females

7225

F55-59

7225

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19261

Females

7057

F55-59

7057

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

20637

Females

7822

F55-59

7822

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19474

Females

7240

F55-59

7240

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

19531

Females

7409

F55-59

7409

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18836

Females

7176

F55-59

7176

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17281

Females

6421

F55-59

6421

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

17282

Females

6517

F55-59

6517

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

17466

Females

6704

F55-59

6704

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17392

Females

6705

F55-59

6705

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17867

Females

7066

F55-59

7066

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18477

Females

7366

F55-59

7366

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

19127

Females

7677

F55-59

7677

Passing Analysis

Category:
Athletes Passed
1149
Passed By
4521
Net Change
-3372
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14978
5K → 10K481354-1306#14978#16284
10K → 15K341265-1231#16284#17515
15K → 20K82507-425#17515#17940
20K → Half16135-119#17940#18059
Half → 25K98348-250#18059#18309
25K → 30K161438-277#18309#18586
30K → 20M105112-7#18586#18593
20M → 21M14156+85#18593#18508
21M → 35K8033+47#18508#18461
35K → 23M14152+89#18461#18372
23M → 24M10339+64#18372#18308
24M → 40K7065+5#18308#18303
40K → 25.2M2834-6#18303#18309
25.2M → Finish4283-41#18309#18350
TOTALS11494521-3372
📊

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